"Evaluating Our Solar Water Heater" Light PPT Courseware 2

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"Evaluating Our Solar Water Heater" Light PPT Courseware 2

1. Structure of solar water heater

Solar water heaters consist of: collectors, insulated water storage tanks, connecting pipes, brackets and control systems.

2. Materials for manufacturing solar water heaters

Materials for manufacturing solar water heaters: heat-absorbing materials, insulation materials, water storage tanks, brackets, etc.

working principle:

The working principle is to use the collector to absorb sunlight, convert the light energy into heat energy, and store the hot water through the water storage tank.

work process :

The solar energy is absorbed through the collector tube to heat the cold water, and then the hot water is sent to the insulating box to maintain a certain temperature. When we need hot water, the hot water is released through the control system and a certain amount of cold water is added to the collector for heating.

Improve the efficiency of solar water heaters?

The most important collector uses vacuum collector tubes. It is made of double-layer glass, and the inner surface is coated with a heat-absorbing layer, which can fully absorb sunlight, just like the internal structure of a thermos bottle. There is a vacuum between the two layers to prevent and reduce heat convection inside and outside the tube. The insulated water tank is made of double-layer stainless steel plates, which are mainly strong and rust-proof. In the middle is a polyurethane overall foam insulation body, which can effectively maintain water temperature.

Newton's discoveries

For many years, people have believed that sunlight is approximately white. In 1666, the British scientist Newton let a beam of sunlight pass through a Mitsubishi mirror. A surprising phenomenon occurred. This white beam of sunlight actually expanded into a beautiful spectrum of red, orange, yellow, green, blue, indigo, and purple light.

What does this phenomenon indicate? Does sunlight change color? It turns out that the seemingly white sunlight is composed of seven colors of light: red, orange, yellow, green, cyan, blue, indigo, and purple. Mitsubishi Jin plays the role of decomposing sunlight, allowing us to see the various colors that make up sunlight. .

judge

1. Solar water heaters convert light energy into heat energy. ( )

2. Solar water heaters can also work well on days when there is no sun. ( )

3. When designing a solar water heater, you must also consider its thermal insulation performance. ( )

4. The component of the solar water heater that efficiently absorbs solar energy is the collector. ( )

5. The reflective material at the bottom of the solar water heater can improve the heat absorption efficiency. ( )

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"Evaluation of Our Solar Water Heaters" PPT download:

"Evaluation of Our Solar Water Heater" PPT Download Part One: Display and Evaluation Precautions for solar water heaters 1. Fill cold water of the same temperature; 2. Fill 200 ml of water; 3. Place it in the sun at the same time; 4. Be pragmatic and remember carefully...

"Evaluating Our Solar Water Heater" Light PPT:

"Evaluate Our Solar Water Heater" Light PPT Part One: Show Our Solar Water Heater Show your solar water heater to everyone. ... ... ... Evaluate our solar water heater PPT, part 2: test our solar thermal...

"Evaluating Our Solar Water Heater" Light PPT Courseware 3:

"Evaluating Our Solar Water Heater" Light PPT Courseware 3 Solar Water Heater Efficiency Evaluation Table Water temperature at the beginning of 5 minutes Water temperature at 10 minutes Water temperature at 15 minutes Water temperature at 20 minutes Effect and reasons Improvement measures and design drawing keywords :Light..

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Update Time: 2024-09-30

This template belongs to science courseware Fifth Grade Science Volume 1, Textbook Edition industry PPT template

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