"Make a Solar Water Heater" PPT download

Description

"Make a Solar Water Heater" PPT download

Part One: Knowledge Learning

Solar water heater is an energy-saving device designed using a variety of scientific principles

The composition of solar water heater

The solar water heater consists of: collector, thermal insulation water tank, connecting pipes, brackets and control system.

A solar collector is a device that converts the sun's radiant energy into thermal energy.

How solar water heaters work

Solar water heaters convert solar energy into thermal energy and heat water from low temperature to high temperature to meet people's use of hot water in life and production.

How to place solar water heaters

The angle of inclination of solar water heaters is generally consistent with the local latitude. This makes it easy to keep the heat collecting surface perpendicular to the sunlight, so as to obtain the strongest light and maximum heat possible.

Make a solar water heater PPT, part 2: hands-on practice

Materials Analysis

Plastic bottles and boxes are both heat collectors and insulators. Packing water in plastic bottles allows sunlight to easily penetrate, which can reduce heat loss and play the dual role of heating and heat preservation.

The inside of the box is painted black to absorb more solar radiation.

Tin foil is attached to the back of the bottle in the box to enhance reflection.

Using plastic film for the lid of the box can also reduce the heat inside the box from radiating outward.

Use plastic foam around the bottle to keep it warm.

The box containing the plastic bottles is propped up at an angle that allows for direct sunlight.

Make a solar water heater PPT, the third part: expansion and extension

Advantages of solar water heaters: safety, energy saving, environmental protection, and economy. Especially solar water heaters with auxiliary heating function, which use solar energy as the main energy and electric energy as the supplement, so that the solar water heater can be used all year round.

Similar to the working principle of solar water heaters, there are solar air conditioners.

The new solar composite superconducting heating and cooling air conditioner uses solar energy and renewable biomass fuel as its main energy source for heating, making it a truly green heating method. During refrigeration, a small amount of electric energy is used to utilize the low temperature of the ground source, and a superconducting energy transmission system is used for direct refrigeration to achieve the most reasonable energy-saving refrigeration effect.

Make a solar water heater PPT, part 4 content: Class summary

Solar water heater is a photothermal converter with the characteristics of energy saving, environmental protection and safety. When designing a solar water heater, you must consider not only the structure of the product, but also the selection of materials, the principles it is based on, and how convenient and practical it is.

Make a solar water heater PPT, Part 5: Classroom exercises

1. Fill in the blanks

1. The solar water heater is composed of ( ), ( ), ( ), ( ) and ( ).

2. Solar water heater has the advantages of ( ).

3. The inside of the box is painted black for ( ).

2. Choice

1. The general tilt angle of solar water heaters is consistent with ( ).

A. Local longitude B. Local latitude

C.Local geographical location D.Weather

2. ( ) is the core component and technical key for solar water heaters to accept solar energy and convert it into heat energy.

A.Solar collector B.Bracket

C.Connecting pipes D.Control system

Make a solar water heater PPT, Part 6: Homework

Check the information and make improvements to your own solar water heater.

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Update Time: 2024-11-22

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

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