State some sources of heat energy and their uses.
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Explanation:
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Answer:
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Explanation:
Some sources of heat energy and their uses:-
1) Gas Fired Water Heater:-
Gas Fired Water Heater water heater heats cold water and stores the hot water until it is needed by various plumbing fixtures and appliances in the home. A gas water heater works by a law of physics knowns as convection—which defines how heat rises.
2) Oil Fired Boilers or Water Heaters:-
Oil can be less expensive than gas in some locations at this time. Oil also has more heat value than liquified gas (LP). However, oil has a number of drawbacks. Oil pollutes more than gas and the heating units are not as efficient at this time.
3) Solar Collectors:-
It is easy for solar collectors to make warm water. The relatively low temperatures required by radiant systems allow for good efficiency at the solar panel. The quality and efficiency of solar heating has improved greatly and the investment value or “payback” can be very good when the system is well designed.
4) Electric Heat:-
Electric heating is not very desirable unless a low cost source of electricity is available with low environmental impacts such as hydro or solar. In some cases when only a very little electricity is needed, an electric heat source can make sense.
Electricity is expensive to generate and usually has great environmental impacts.