Renewable energy - DIY Sorar oven/cooker , Wind generator and Solar panel.

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SOLAR OVEN COOKER DIY.

The solar oven is a device which uses the sun for cooking with high yields are collected sunlight together and at one point to become heat to a specific space.
The solar energy does not convert to electricity such as solar panels to electricity with an efficiency usually 20%.
Here we have almost 100% efficiency and cooking will take place as long as there solar. Sun energy is around 1000 watt per square meter.
Cook with this device for a clean environment!!!


SOLAR OVEN DIY

Solar oven cooker construction photos...
Solar oven photo 21
Solar oven photo 22

Others YouTube NEW videos HDD!!!

Solar cooker oven Part 1 Solar cooker oven Part 2 Solar cooker oven Part 3

Solar cooker oven Part 4 Solar cooker oven Part 5 Solar cooker oven Part 6

Solar cooker oven Part 7 Solar cooker oven Part 8 *** Solar cooker oven Part 9 ***



WIND GENERATOR DIY.



WIND GENERATOR  DIY

Wind Generator Power Equation: P=.5rAV^3CtCa

P = power in watts
r = The air density (1.2kg/m^3 @ sea level and 20 C)
A = The swept area of the turbine blades (m^2 square meters)
V = wind speed ( meters per second)
Ct= Wind turbine efficiency
Ca= Alternator efficiency

Example P=.5*1.22*1.4*4>3*.24=13 watt at 4m/sec(14.4 km/h) wind .


3 Phase PMA Alternator / Generator

rpm per volt

total resistanse of coils

voltage open circuit

12.5 volt + I * R = Voc

Example 12 rpm per volt,R=1 ohm and we want to charge 12.5 volt battery with I=2 A

12.5 + 2*1=14.5*12=174 rpm

The generator start charge in 150 rpm.

The power into battery is P=12.5*2 Watt=25 Watt

Pr=I>2*R=4*1=4 Watt

The total resistance for stator is 3x1 phase resistance R1=.35 ohm Rstator=.35x3=1.05 ohm for star connection.

If you make delta connection the total resistance is same with 1 phase resistance Rstator=.35ohm.

Star 12 rpm/volt

Delta 12x1.732=20.8rpm/volt

Delta require more rpm to start charging but for high wind speed is bettter because the power losses is lower.

3 PHASE ALTERNATOR

There are basically two types to wire a 3 phase alternator, Star and Delta.
With Delta you get lower voltage but more amps. In star you get higher voltage but less amps, resistance in Delta is 1/3 the resistance of Star.

Star/Delta wiring


SOLAR PANEL DIY.



SOLAR PANEL  DIY



SOLAR PANEL BOOSTER WITH MIRRORS 50% INCREASE THE POWER!!!

The current before boost is 0.28A, after boost with mirrors the current up to 0.41A.I put the small solar panel 5 watt inside to my solar oven at 3pm.
You risk overheating the panel for long time use after 11am and before 4pm.This is good for the morning and the afternoon when the solar radiation is low.
The best temperature for solar panel is max 42 C.Up 42 C the output power drop.
You can cool the panels with cold water with pump.
Better you must use a digital thermometer with temperature sensor for this experiment.
Look my video in YouTube.




SOLAR PANEL 100W - INFLATABLE BOAT 3M - TROLLING MOTOR 58 LBS - BATTERY 12 VOLT!!!

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