|STOP PRESS: Our new school research program - Understanding the Ecosystems Services Value of Rainforests
1.3.1 Weatherstation, Energy, Whare Research Project
Description: " Weatherstation to reseach global warming, energy efficiency and healthy housing"
Check our local Whirinaki weather station data on line now at www.whirinakirainforest.info/weather
The initial idea for this project came from Meriana Taputu when she took a group for a walk to the waterfall. She told of how our ancestors Te Marangaranga developed small houses that were built well into the ground (a well drained well insulated pumice base). They lined this and built the low whare with Ponga logs (soft and a very good insulator) then put Totara bark over the roof as shingles. She has suggested to DOC that these be built on the river flat below the track to give visitors a richer visit.
We think that these houses would have been very energy efficient, warm in winter and cool in summer, with little need for fires and heating. We are looking at building one at our school as an experiment that could prove how much our ancestors knew about science and technology Check out our Ponga Whare plan.
We have also been told that even around 1950, some of our old people living near the marae slept in small sleeping whare shaped like small tramping tents on a platform about 800mm off the ground. We are going to ask some of our older community members about how these were made, as we think these too may have been very energy efficient, being above the ground frost level and probably relying totally on body heat as there was then no electricity in the valley.
This project kicked into life in March 2008 when we were able to buy an electronic weather station some solar panels and other experimental equipment, with Koha given by organisations using the Tipu Ake Organic Leadership Model that our community shares.
ERECTING OUR WEATHER MONITORING / SUSTAINABLE ENERGY POLE AND EQUIPMENT:
Glueing ducting and threading the cable into it to get the power from our solar cell
(It took a bit of smart thinking and teamwork to find our how to thread 25 metres of cable into a small diameter duct (pipe)
Leveling the support posts, then lifting the pole into position
(The pole is hinged as we need to get access often - we have a safety rope to stop it falling back on us while lifting)
A later physics project on seesaws, levers, pulleys, forces and gravity will design a winch so just one person can raise and lower it safely. We scored a hand winch off trademe to help do this.
We have also nailed small ribbons to the pole so that we can observe air flows and turbulence around the it and equipment.
The Solar panel to power all / the outdoor temperature, humidity, ground temperature and rainfall sensors
(This is from BP Solar - the same technology BP now uses for solar arrays on top of their petrol station forecourts)
The wind and solar radiation sensors - The official height for wind measurement is 10 metres)
(these sensors need no wires: they communicate by wireless links to the weather recorder unit in our classroom)
All gathering around for karakia to bless the pole, our work and the learning that we will get from this project.
LEARNING ABOUT LIGHTNING
We don't get too many direct lightning strikes in our valley as they are attracted first by our mountain Tuuwatawata which safely conducts them to ground though its core. In that way it is a Kaitiaki (Guardian) over the place we live in; that is probably why it is bald at it's top. Just to be safe, we fitted a lightning arrester rod at the top of our pole which conducts down a thick 35mm2 copper cable to a ground mat made of exposed copper underground cable and two earthing rods. In a way it too becomes a local kaitiaki; guarding our, equipment, classrooms and we students .
SOLAR / WIND POWER CONTROLLER
The power controller: including provision for a 10 watt solar panel and four wind turbine inputs charging a 7.2 Ampere-hour sealed lead acid battery. It provides outputs for the weather station display, the data laptop, a 230 volt 50 watt mains invertor, a nicad batter charger (for sensor power) and an adjustable electronic lab bench power supply for our experimental work.
OUR IROX WEATHER STATION INSTALLATION
The complete installation including the iROX weather display and the laptop that stores and processes data from it. This means that all classes will be able to access this historical weather information via our school intranet.
As well as measuring wind speed, wind direction, UV radiation, rainfall, internal temperature / humidity, external temperature and humidity, and ground temperature, the IROX weather station can also collect, monitor and record additional wireless sensor inputs for other experiments. The IROX is supplied in NZ by Outside-Inside NZ
The IROX unit stores up to 3300 data sets (eg for hourly minute recoerding rate (135days) so that laptop does not need to be permanently on line. Our 10 watt Solar panel cannot permanently power the laptop, so want to eventually programme it to power down into sleep mode and wake up for a minute or so every hour to gather the readings and a valley webcam image then send them off to the Whirinaki website so all in the world can learn about our weather. When we get this going (next semester), our school will become the "Ngati Whare Metrological Service" !!
The readings we collect are:
The data set is recorded by the station and collected to a text file under the RECORDS folder in the weather capture program folder
Internal Temperature (degC) (Permanently monitoring our senior classroom)
Internal Relative Humidity (%)
Ch1 sensor – External Temperature (In sun sheltered box on post 1.2 m high)
– External Humidity (IROX 3 channel temp / humidity sensor)
Ch2 sensor – Soil Temperature (IROX HTC13 cable sensor with tip buried 300mm)
Ch3 sensor – Black body Temperature Sensor ( Uses a remote temperature sensor measuring a black plate in a glass bottle - Comparing this with outside temperature allows us to monitor heat radiation from the sun by day and by the earth at night. This all about Global Warming mechanisms and very useful for solar energy studies. The night-time reading also allows us to assess the amount of night cloud cover and thus together with temperature and humidity readings to assess possible frost danger next morning and how it may effect our crops) (IROX HTC13 cable sensor)
Ch4 sensor – Experiment temperature ( portable wireless unit for other whare)
- Experiment humidity
(this needs to be the IROX 5 channel sensor delivered with the station)
Ch5 spare sensor channel - Spare Experiment Temperature (future portable unit)
UV Radiation Level Index sensor (UVI) ( Used to monitor sunburn / skin cancer danger factors and changes in the ozone hole due to fluorocarbons etc)
Barometric Pressure (hpa)
Weather forecast (derived from Barometric Pressure changes etc)
Windchill factor (degC) effect of wind and temperature on body cooling (Hypothermia dangers)
Wind Speed / Gust (Km/hr) (Useful information to do studies on Wind Energy potential)
Wind Direction (degrees)
The anemometer also measures temperature at the poletop. (10m)
One hour rainfall
Rain last 24 hours
Rain last week
Rain last month
We thank the AUT IT Student team for their help in getting the Weather Capture, Weather Display and Weather Display Live Software going in a limited way on one of our old Windows 98 Laptops. This was able to update the Whirinaki Website but since this configuration though great for a technical enthusiast was not able to robustly provide what we needed for our remote school situation, we are looking to move to PC- Wetterstation for our next stage developments in 2009.
Read handbook for managing our school weatherstation configuration (a work in progress)
..... Experiencing the power of Tawhirimatea (God of the Wind):
Our weather pole is free standing in the most exposed part of our school, so the wind passing over it causes it to shake, along possibly with the wind turbine vibration effects. During a large storm (after about six months on the top of our pole) the anemometer and UV sensor brackets work hardened and fractured so both units fell 10m to the ground. The UV Sensor itself was undamaged, but the anemometer wiring was ripped out and needed a replacement.
The IROX is a very well designed unit, but if you are installing these in wild conditions on the top of a pole, we recommend that the anemoneter has a bracket similar to the above added to give it rigidity and damping, thus taking the cyclic loads of the point where it enters the base. Also we suggest that the UV sensor bracket be modified by removing the metal pipe, substantially reducing bending moments and stresses.
GETTING TO GRIPS WITH OUR PLANET'S TEMPERTURE / ENERGY BALANCE (GLOBAL WARMING) -
A home made net radiation in / out monitor
While installing the Weatherstation software we became aware of a nightime cloud cover sensor (often called a jamjar black body sensor) on the Weather Forum and also this jam jar strand.
We all understand that the sun's radiation on a black body raises its temperture above ambient air temperature by day. The converse is harder to work out ....
- Why on a clear night does a black body get colder than the ambient air temperature. Perhaps this explains why on clear nights ground temperatures on the surface go down and we get frost despite the soil temp below it being higher and the air temperature above it also being higher (horticulturalists use helicopters to move warm air down)
- A physicist friend of ours pointed us to this website picture which shows that what we are observing is tightly coupled with the earth's temperature balancing mechanisms (global warming and cooling), so we have added a home made sensor to our IROX installation
We will be monitoring the temperature difference between this and the ambient air temperature (with a calibration adjustment to account for temperature sensor differnces), to help us better understand the global warming diagram above.
Temperature data collected by our weatherstation as Excel files over April, May, June 2009 confirms that on clear frosty nights the black plate does radiate into space and gets colder by a degree or two.
We have also made another sensor so we can do some other experiments using our Picaxe controller (see further below). The black plate radius is 35 mm which (using the formaula Area =3.1417 x radius squared) gives an area of 0.00385 M2 which at a daytime sun radiation of 343 watts/m3 would capture around 1.32 watts. To calibrate our sensor we have glued five 18 ohm resistors in series to the underside of the plate giving approx 90 ohms resistance. With a 12 volt supply to this the resultant current flow [I (amps) = V (volts) / R (ohms)] of 0.133 amps would produce 1.6 watts [P ( watts) =V (volts) x I Amps)] of heat.
This unit is currently (July 2009) being used to monitor temperatures and do trials in the Minginui Mara (garden) to try to minimise frost damage and maximise growth in winter conditions.
LEARNING TO APPLY WIND TURBINES
Our first prototype wind turbine and the one we will keep to use as a reference to check the performance of all others we build or experiment with. We will trial next a two bladed turbine with more lift and less drag hoping for a tip speed of around 5-10 times that of the wind. That will requires us to learn about and experiment with aerodynamics. Each is cabled into our classroom so we can record the voltage and power they generate.
One of our design objectives is to use wind turbines on the mountain-top repeaters that get broadband access to our remote Te urewera schools and communities, so that we do not lose contact with the world over periods when there is no sun for the solar panels. This requires very robust turbine designs that operate in very high wind speed conditions where most conventional turbines are feathered or braked to prevent over speeding and blowing themselves apart. Already we have had some mechanical failures so we are are learning about the power of Tawhirimatea - God of the Wind.
Our first Savonius style horizontal turbine. It relies on wind drag to turn it, so it operates at a slow speed and gives plenty of torque (turning power). It accepts wind from any direction. It has an alternator at each end so we can double the voltage output to account for its slower speed.
Next we will build a Darrieus one (The example above is a prototype Turby design from Delft University) which relies more on aero foil lift so it will spin much faster.
We are building a number of wind turbines around a 24 volt brushless axial computer fan which we converted to become a generator (or more correctly an alternator as it provides Alternating Current - AC, not Direct Current - DC). We split the two windings and bring both ends of each out from the alternator. In the junction box we join both winding in series to double the AC voltage we pass to a bridge rectifier to convert this to DC and hopefully to help charge our battery.
The motor - generator set that we use to help better understand our alternator characteristics and design our wind turbines.
LEARNING ABOUT SOLAR ENERGY INSULATION AND SAVING POWER
Our insulated solar energy box has internal heating lamps, a small circulating fan, baffles to direct the air, a larger extractor fan that automatically runs if the temperature exceeds a safe limit. We planned to use the remote wireless sensor to
allow our i-ROX weather station to be the instrumentation we need to monitor and record the results of our experiments over 24 hours every day, but will now probaly use our PICAXE Programable Interface Chip set up instead. (see below)
A black plate inside can be used to absorb the suns rays. By measuring the temperature rise we work out how much energy the sun gives out and we can compare that with the electrical power given out by a solar panel of the same area to estimate its conversion efficiency. The guys at National Glass in Rotorua helped us double glaze the front cover to help prevent heat loss. Bricks or heavy stones inside the box allow us to store heat when the sun is out then release it later. By replacing the front panel with other building construction materials / we estimate their thermal losses.
Here Terenui who hopes to become an engineer (helped by Tumanako who did the mechanical work) is wiring up the control panel for this unit as a project over the school holidays
(Our first initial experiment showed that putting 20 watts of lamp heat into an empty box the internal temperature rose to around 10 degrees C above the outside temperature. Then with the lamps off and the the black absorber plate facing the afternoon winter sun, the internal temperature rose to more than 50 degrees C while the outside temperature was less than 20 degrees).
Looking at the thermal resistance values for 30mm Polystyrene (approx R=.75 ) at http://www.plastics.org.nz/page.asp?id=468 it seems that much of the heat loss /gain we saw could be through the box walls so we will need to add another 100mm to bring the R value to around 3. That way most of the loss will be through the front panel
refer to the excellent study on Housing NZ homes at http://www.physics.otago.ac.nz/eman/documents/Main%20presentation%20Wellington%202007.pdf which shows single glazing around R =0.15 , double glazing R = 0.26, curtains R=0.2 - 0.3, un insulated timber walls around 0.15 and well insulated walls and ceilings around R=3)
USING PICAXE MICROCONTROLLERS IN OUR PROJECTS
We are starting to use the Revolution Education PICAXE 14m microcontrollers www.picaxe.co.uk for our Electronics laboratory bench. These we can program to control things including wind turbines, solar electricity panels, charging systems etc.
We use the Picaxe 14M chip fitted on the 14m Prototyping Board.
We have this built into a laboratory prototyping unit which has the following functions:
Input 0 - a 0-5 v analogue input terminals (with variable potentiometer we can switch in as a test input) / interrupt*
Input 1 - digital with test switch [up =1 (digital temp sensor 1), middle = terminal input, down = 0 / interrupt*]
Input 2 - digital with test switch [up =1 (digital temp sensor 2), middle = terminal input (PWM), down = 0 / interrupt]
Input 3 - digital with test switch [up=1 (to infrared remote sensor), middle = terminal input, down=1 sec clock i/p)]
input 4 - 0-5 volt analogue input with test switch [up=1, middle (0-25v ext terminal input), down=0 (light detector)]
note: A rotary switch allows the interrupt line to be connected to inputs 0, 1, 2. this can be either driven by the alarm pulse 5 (seconds) at the preset alarm time / duration from the Real time clock, or alternatively a one second signal pulsing signal.
Inputs 0-4 can also operate as counters up to 50 kHz (pulses per second) using the count command Input 2 can be used as a PWM 2 ( Pulse width modulation) output using the pwmout command
Output 0 - serial output to PC (and also to LCD 16 x 2 display module)
Output 1 - LED lamp and darlington pull down driver (swithes to 0 v when output is on)
Output 2 - LED lamp and darlington pull down driver (also drives Piezo sounder - speaker)
Output 3 - LED lamp and Mosfet high power pull up driver (switches to +12v when output on)
Output 4 - LED lamp and Mosfet high power pull down driver (switches to 0v volt when output is on)
Output 5 - LED lamp and isolated relay outputs
notes: inputs 0-2 and outputs 3-5 form Port C and can be each reconfigured using the let dirsc command to be either inputs or outputs. That gives up to three more ADC input channels and/or four more hpwm (Pulse Width Modulation) outputs (able to provide analogue outputs)
The unit is powered off our Solar system 12 volt battery. The LED indicator ligts and displays can be switched off to save power when not needed. It can also be switched to run off an internal battery ( 3 x AAA cells) so it can be a portable unit.
We can connect inputs ) like switches light detectors, position potentiometers etc. (two inputs have digital temperature probes - shown). The outputs can be used to drive lights, motors etc.
The serial digital display panel on the front allows us to output information and readings. We also have a piezo sounder
This module also includes a real time clock chip that can display time and date. (This needs a little program here to set it). This module also provides a one second flashing output and an alarm that we can program to produce a 5 second pulse - either at a specified time or after a specified period. Either of these can be switched into input 0, 1 or 2 to provide an input that will interrupt the controller and cause it to do something specific.
By connected it to a PC via a serial port we use the Picaxe Programming Editor (downloadable here for free) in it to write a program that reads the Picaxe inputs, processes the information and drives its outputs in a very flexible way. There is also a debug command which allows it to send information back to the PC to let us know what is going on inside it.
You can find a demonstration program here which reads the two temperature inputs and buzzes if
they are above a preset limit. It also flashes the outputs LED's. It plays a song after it gets an interrupt input from the external clock after a preset time (set at 2 minutes here) to remind us to take the temperature readings (say if we are doing a heat experiment with the energy box above).
Once programmed the PC can be disconnected and the picaxe just does its job, holding its program even if the power is switched off.
The first real picaxe project our class is thinking about is making a tracking solar panel that moves to always face the sun. See also what some South Taranaki Schools are doing using Picaxe and a NZ site with lots of links.
For more detailed information about our installation, check out our project design notes
- We will learn learn about energy saving and how to use solar, wind and other reusable energy sources
- We will be able to learn across the curriculum using some practical examples
- This will help us understand and make "Statistics" and maths more real
- We will know much more about how our ancestors survived in this extreme climate
- We will learn a lot about energy efficient housing and the insulation properties of materials
- We will install a weather station and collect information about conditions and changes
- We will consider other local material like pumice that may be good for building environmentally friendly housing ( One of our whanau is already planning to use straw bale and mud brick construction for a new home)
- We will understand our ancestor's gardening knowledge ( eg planting by the moon / soil temperatures / frost etc )
- We will add to the experience of visitors in the forest /our area by adding this human / cultural component
- By physically working in the forest we will learn more about it
- We will share our learning as a resource for other schools; including those coming on field trips to our education camp.
- We will be taking a growing role as kaitiaki of the Whirinaki Rainforest; working in partnership with DOC and others.
Start Date: mid 2004 deferred to 2008
Expected Completion: mid 2008 but ongoing spin offs will come from this
Budget: Direct Costs not including labour;
Activity 1A. The weather station and other items has been purchased using Koha given to us: COMPLETED Apr 08
$674.20 Outside Inside NZ ltd - Weather Station IROX
plus ground temperature /humidity sensors
$66.74 Bunnings - Timber, bolts etc to support the pole and mount these safely.
$60.87 DSE, Plastic Box, Bunnings - misc equipment to allow us to do solar and wind generation experiments.
$500.90 Jaycar - Solar panel, regulator, battery, cables, invertor to get our "Electrical lab" on renewable energy
$106.03 Bunnings, Mitre 10 Hammer HW - Conduit and solar panel mounting brackets
$1408.74 expended for installation - April 2008
Thanks to Tipu Ake koha from The University of Auckland "Excelerator" Leadership Programme, Change Training Consultants, Compass Communications, North Harbour Sport, Andrew Coop (A Kiwi in London who enjoys Whirinaki), Andree Mathieu (Canada) and Strategic Expertise for helping make this happen. Also to the many organisations who freely give us the materials we need to do things
Activity 1B Complete our renewable energy lab and research pole installation COMPLETED May 08
$200 Materials to add a lightning arrestor cable up our pole, to protect us and equipment.
$.nil.. Design a small winch using local materials to help us safely raise and lower our pole
$80 Surplustronics - Motor generators to build small wind turbines of different types
$100 Bunnings - Cabling and other hardware needed to add these to our pole and monitor from inside
$ 20 Add the facility to recharge the ni-cad batteries used in weatherstation sensors using solar energy
$40 Jaycar electronics - Add converter to run a laptop off our battery and other misc equipment.
$440 Total - We are expecting other koha to cover this
Activity 2 Getting this on line on the web complete with a webcam PLANNED For Sept 08
$200 Weather display and weather display live software for PC may be required for another AUT student project we hope will help us with the skills we need in semester 2 2008
$150 purchase high quality Webcam
Activity 3 Build A Punga Whare at the Kura for experiments
Very little cost involved as almost all materials are local and readily available in the area. If we build it at the Kura its all about getting some parent volunteers with a truck and a few spades.
Activity 4 Build Punga Whare with visitor interpretation signs in Whirinaki Forest
We would need community help and DOC track barrows or someone with a helicopter to drop the logs onto the site for us, as we could not cut them from the surrounding bush.
Activity 5 Design and build a wind turbine / generator STARED FROM MAY 2008
We have found some small motors that we can convert into some experimental wind turbines. (horizontal type- conventional, and vertical types - Darrieus, Savonius, Teslar and other variants). We will mount them on our pole to check their performance, efficiency and learn to make them better. Down the track that may allow us to design a higher power one using an old F&P washing machine motor or similar to build it in our school Technology workshop.
Activity 6 Design and build a Mini Hydro station to power the new BBQ area at the Mangamate Waterfall campsite
This is just an idea to think about at this stage.
Activity 7 Carry out an audit on school Power usage: UNDERWAY
Our Power Bill was well over budget last year. That is money down the drain that we could have used for learning activities. We now have a clip-on ammeter that allows us to learn about the consumption of heaters and things around the school. Our Weather station has a remote sensor that we can put in the various buildings to record temperature/humidity and use it to see that we only using heating when it is absolutely needed.
Activity 9 Research building materials and passive solar heating
We have lab equipment in the form of a polystyrene fish box with a double glazed front and a black panel and wireless temperature sensor inside. This will let us trap the heat radiated by the sun (a bit like Maui did) and then find out what power needs to be given out by a lamp inside to get the same rise in temperature. That allows us to measure the heat in watts given out by the sun for every square meter surface area. That also allows us to estimate the efficiency of our solar panel. We can compare the loss through glass, double glazing and building materials. We think that we could maybe come up with a design for a solar storage heater that uses the sun's free energy to heat our school and homes instead of us having to buy power from the electricity company.
Nominal Project Leader: Meriana Taputu (kicked off the idea). Ex pupil Peter Goldsbury has helped our kura teachers get this facility established, now its over to the classes to take this over if and when it suits their learning programmes.
Project Team: Kura senior students as this will be a school design /science project
1. Research - Find out as much as we can find about:
Use of Ponga (and other materials) for Whare in Whirinaki in the past.
Energy efficient housing and using insulation to keep cold and heat out.
How much heat energy a typical family would give off to warm the whare.
The effect of temperature (cold) and Humidity (dampness) on human health
Weather and environmental monitoring (we must install own weather station for this project)
Solar and Wind Power - Could we do our project without paying for electricity etc.
Plan the content of our project and get it approved at the Kura
Work out how we will write down what we learn and share it (Maybe produce a DVD to hand in)
Design the whare before we start building it
3. Getting Resources
Organise our parents and community to collect materials to build a small whare at the Kura.
Find people who could donate
materials to make a solar/ wind power supply to heat / light our whare
Have a "Whare DIY" working bee
Build a power supply to generate the same amount of heat inside the whare that a family would.
Set up our computer weather station to record inside and outside temperatures etc in all weather / seasons. This has extra sensors to let us compare conditions inside our whare or other experiments
5. Sharing our research and information.
Do experiments to compare the heat loss through different materials eg Ponga, Raupo,
wood, tin, glass
Look to see how we could improve living conditions in our whare with new designs (eg insulation or shading).
Monitor weather conditions in Whirinaki all year round - may be useful for gardening, nursery and and agriculture.
Get the weather station data webcam pictures on line on the Whirinaki Websites so visitors can check before they come (we may get a team of students at AUT to help us do this).
6. Documenting our project
Record all we do on video / the web and make a DVD resource to share with other schools and communities
Every student should keep a learning journal to record and share what we learn every week.
(these will be what we hand in for assessment).
Perhaps we could submit this as a entry in the NZ School Science Competition
8. Managing our Project
Make a plan to show when things are expected to be done and who will be doing what.
Make a budget at the start and keep a record of all the costs of doing this.
Hold regular korero to share what we are doing and learning
Think about how we could do this kind of project better next time.
Main Curriculum areas that could spin out from this programme:
Technology: Making sense of the Material world - design, construction, weaving mats, raupo walls etc, properties of materials
Science : Making sense of the physical world electricity, heat and energy, solar and wind power, global warming
making sense of planet earth: environmental - temperature, humidity, rainfall, wind speed and direction UV radiation, sunlight
Communications: verbal, written and multimedia communications
Mathematics: Geometry (design), Measurement, Algebra (Patterns and relationships), Statistics
ICT: - on line websites, information processing, multimedia production
Accounting: Budgeting and Costings
Health: effect of living conditions on our health
Some good web Resources:
Traditional Maori Housing:
Wharepuni - Remaining Tuhoe dwellings 1926 JSTOR -Firth Raymond Firth
Storehouses and Dwellings ( Elsdon Best) www.nzetc.org/tm/scholarly/tei-BesMaor-c6-7.html
Weather station hardware: www.weatherstation.co.nz iROX Pro x USB with wireless sensors
Weather station manual iROX http://www.weatherstation.co.nz/downloads/prox.pdf
Weather Capture software http://www3.suxeed.com/ost/ost-extranet.nsf/SoftwareView?OpenForm to allow a laptop to collect historical data - Provided with IROX .
Weather station Software: www.weather-display.com to store experimental /historical data ( NZ)
Live weather display software for the web: www.weather-display.com/wdlive.php to update on website
Weather station software (German) that works with iROX http://www.pc-wetterstation.de/enindex.html
Environmental monitoring; (We are on the Te Whaiti fault line)
Lightning strike counter: www.hobbyboards.com
Lightning Sensors http://www.stormwise.com/
Building your own seismograph station http://facstaff.gpc.edu/~pgore/seismic.htm#build
Jason - Operation Master Storms Learning resources www.jason.org/Public/Curriculum/Curriculum.aspx?pos=1
Renewable Energy and Efficiency (including housing)
Meridian Energy School Energy Programme resources www.schoolgen.co.nz
US Energy Efficiency and Renewable Energy - K12 Lesson plans www.eere.energy.gov/education/lessonplans/
NZ Housing Corporation - building new or refitting existing housing stock- http://www.physics.otago.ac.nz/eman/documents/Main%20presentation%20Wellington%202007.pdf
Solar design/ Panel direction considerations http://www.rpc.com.au/products/panels/pvmodules/pvmodules.htm
More design info from Rainbow Power Company http://www.rpc.com.au/products/services/examples.html
Wind turbines aerodynamics etc - (browse deeper into these sites for more interesting stuff
A Social Network for the Wind Turbine Community http://www.windturbines.net
David Darling's Encyclopedia of Alternative Energy and Sustainable Living http://www.daviddarling.info/encyclopedia/W/AE_wind_turbine.html
Golf ball dimples and Drag - the theory of aerodynamic shapes and techniques http://www.aerospaceweb.org/question/aerodynamics/q0215.shtml
Aerodynamic questions http://www.aerospaceweb.org/question/aerodynamics/
Applied Aerodynamics - A digital Textbook http://www.desktopaero.com/appliedaero/preface/welcome.html
WIND DESIGN FOR KIDS with Miller - Danish Wind Energy Association http://www.windpower.org/en/kids/index.htm
WIND DESIGN GUIDED TOUR - Danish Wind Energy Association http://www.windpower.org/composite-85.htm
From Gas Turbines to Tornados http://www.memagazine.org/contents/current/webonly/webex403.html
Atmospheric Vortex Engine http://vortexengine.ca/index.shtml
Earth notes - London home wind power pilot project- http://www.earth.org.uk/wind-power-pilot-autumn-2007.html
Design notes for a wind turbine for power generation http://www.btinternet.com/~andrew.h.lohmann/WindMill.html
Diodes and Rectifier Circuits (Converting AC to DC) http://www.allaboutcircuits.com/vol_3/chpt_3/4.html
Designing a wind generator using a Fisher And Paykel washing machine motor http://www.yourgreendream.com/diy_instructions.php
Wind Turbines - How they work http://www.solarnavigator.net/wind_turbines.htm
Build it Solar - Wind Power Projects http://www.builditsolar.com/Projects/Wind/wind.htm
Scoraig Wind - Hugh Piggott's collection of articles, links, and plans for building wind-powered electricity units;- http://www.scoraigwind.com/
A site full of DIY wind power experiments http://www.windstuffnow.com/main/
Teslar bladeless turbine theory
Savonius Wind Turbine News http://www.berezin.com/jeff/Savonius%20Wind%20%20Turbine%20News.htm
Darrieus Wind Turbine Theory http://www.windturbine-analysis.netfirms.com/
Darrieus performance in skewed flow on a rooftop (hilltop?) http://www.windenergy.citg.tudelft.nl/content/research/pdfs/jsee2003-sm.pdf
A Self Starting Darrieus Turbine - project report http://www.webalice.it/acecere48/finalreport.pdf
Wind Belt (micro power) technology (video)- uses aerolastic flutter - set to power the third world http://www.ecofriend.org/entry/shawn-frayne-disclosing-the-intricacies-behind-his-ingenious-windbelt/
Down Wind Turbine - DIY Construction http://www.windstuffnow.com/main/test_page.htm
Lightning protection resources http://www.windsun.com/Photovolaic_Systems/Lightning_Protection.htm
Resources for a School in Scence, Technology, Engineering and Mechannic
STEMNET (UK) Science, Technology, Engineering and Mathmatics Network http://www.stemnet.org.uk/
Electricity - All about Circuits and Electricity http://www.allaboutcircuits.com/l_sitemap.html
||Need DOC , Iwi and Kaumatua permission to build in forest
||Waiting for the right time to fit this work in at Kura
||Cleared and started April 2008
||Details of event or action
||On walk in forest, Meriana Taputu explained how Te Marangaranga built their houses / huts and suggested that one built on the river flat below the track would make the visitors more aware of our history.
||Discussed with the kura the possibility of making this a future Kaitiakitanga student project
||Added this as a tentative project 1.3.1 and contacted Meriana to see if she would kick it off
|5 Feb 08
||Suggested this as a Science project at the Kura
||The Kura staff and BOT agreed to use Tipu Ake koha to purchase an electronic weather station to be used as instrumentation for this and other projects like this.
||Weather Station installed at Kura and used in local mode for learning. We are looking at sponsoring another AUT Student project at next Semester to configure, install and train our students in the software which is used to support the station and to get our local weather information and webcam pictures on the Whirinaki website for all the world to see.
||Extended with more equipment for energy research / sustainable design / action
||Installed equipment including lightning arrestor cable, first trial wind turbine and solar / wind controller to power complete installation.
||Installed more equipment including a sample horizontal wind turbine and an identical experimental one for which we can design, make and compare the performance of our more efficient windmill blades. Also installed an experimental Savonius style vertical wind turbine to compare.
||Two students Terenui Kemp and Tumanako Roberts gave up a day of their holidays to repair the damaged turbine and complete construction of the Energy box
||Work continues setting up a PICAXE programmable Interface Controller; a single small chip costing less than $10 which will be the basis of the future electronics project work students will do. It provide the mechanism for automating and supporting other learning experiments.
||AUT Students in IT Diploma programme configure laptop software to store weatherstation records on our school server. Another project planned in 2009 to complete this and get weather data on website
||We welcome home David Bellamy (who agreed to be a patron of the Kaitiakitanga Program and Network when it was initiated in 2003), as a special guest for the DOC Whirinaki 25 year celebrations. He takes a personal interest in what we are doing on this project. He recently opened a purpose built Environmental and Global Centre at Swavesey Village School near Cambridge.
||Laptop software changed to PC-wetterstation which is working reliably and storing weather data on the school server. School software changes needed to install weather webcam and send to website
||Proposal submitted to the school Board of Trustees, proposing building a small ponga whare ( hut) at the school. possibly officuially opened by David Bellamy when he visits Whirinaki in Sept 2009