- Solar Educational Kits, Small Solar Panels, Solar Science Projects
- List of Solar Energy Project Ideas for Engineering Students
- Solar Science Lesson
Get pieces of 3" x 3" papers in black, white, red, blue and yellow papers.
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Roll each paper around a pencil and then insert them in one test tube. Fill each test tubes with tap water up to the 4" level. Secure all five test tubes to the side of a box using tape or rubber band. Place the box in a sunny spot preferably indoor so that all test tubes will receive the same amount of sunlight. Measure and record the initial temperature of all five test tubes. Watch your setup and make sure that all test tubes are getting sunlight for one hour. Reposition the box as needed as the sunlight moves.
Measure and record the temperature of all five test tubes after one hour. Use a bar graph to present your result. Make one vertical bar for each color.
The height of each bar will represent the temperature increase in the test tube with that specific color. Additional Materials you will need include: Food coloring or color paper Watch, clock or timer Paper and pen to record your results Sunlight WARNING: Adult supervision and support is required for all experiments and for handling the materials. How to use a thermometer? List of Experiments: Efficiency of solar heaters Solar energy in different times of the day Effect of color in absorbing solar energy Experiment 1: Efficiency of solar heaters Introduction: In a solar heater we use reflectors to concentrate the solar energy in one small point where we want to cook something or collect and store the heat energy.
Procedure: Mount the wooden rod on the stand Cut three pieces of 3" x 3" black paper and roll them around a pencil and then insert each rolled paper in one test tube. You use the black paper or black color because other experiments have shown that black color will absorb the most heat from the sunlight Use two rubber bands or tape to attach one of the blackened test tubes without cap to the middle of the wooden rod.
Make sure the light is focused on the test tube. Secure the mirror in that position so that it will stay focusing.
Readjust it every 5 minutes if needed. Use two rubber bands or tape to attach the second blackened test tubes without cap to the outside wall of a cup or a similar object so that the test tube can stand vertically.
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Keep this test tube in the shade. Paint a one gallon jug black and place it on top of the bowl. Fill the jug with water. Take the temperature of the water and cover the bread box with a lid.
Solar Educational Kits, Small Solar Panels, Solar Science Projects
Place the bread box under direct sunlight for about three hours and then take the temperature of the water again. Multiply the difference in temperature of the water with 8. This will give you the amount of solar energy that you have collected in 3 hours. If you achieve a difference of about 80 degree Fahrenheit, then you can give yourself a pat on your back and work on enhancing the bread box setup to a full-scale setup.
Solar Cooker. Here, we will make a parabolic solar cooker. For this, you will need cardboard. Depending on the food to cook, verify the size and the process of making the parabolic shape cooker on the internet. Once the cooker has been made, tape the aluminum foil to the insides of the cooker. Attach the cooker to a cardboard box using nuts and bolts.
List of Solar Energy Project Ideas for Engineering Students
Turn on the heat to its highest setting and watch. The colors on the copper piece intensify, and then start to darken with a coating of cupric oxide. Wait for the copper to turn black, and then let it cook for another 30 minutes. Turn off the heat and let the copper cool on the burner. As the plate cools, the copper and cupric oxide shrink at different rates, and the black coating begins to flake off.
When the plate is completely cool, remove the plate and gently brush off all the flaking material. Underneath it is a red layer of cuprous oxide. Don't rub this off — this is the semi-conducting layer you need. A clear plastic one-liter bottle makes a suitable container for your solar cell.
Solar Science Lesson
Cut the bottle around the middle and remove the top so you have an open container. Bend the copper plate you heated into a semicircle and fit it inside the bottle so it rests against the side. The side that was facing up on the burner should be facing the outside of the bottle. Bend the copper plate you didn't heat into a similar shape and set it in the opposite side of the bottle. The plates shouldn't touch. Mix two tablespoons of table salt into a glass containing about 2 cups of warm water and stir until the salt dissolves.