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What is a heat pump and explains its purpose?   (i need to do a presentation. can you explained to me about this)

What is a heat pump and explains its purpose?   (i need to do a presentation. can you explained to me about this)

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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What is a heat pump and explains its purpose?

 

(i need to do a presentation. can you explained to me about this)

HEAT PUMPS A system which links heat and power needs • These generally work as a reversed heat engine, using a power input to upgrade heat from a low temperature to a higher one. • Heat pumps also include vapour recompression systems. Finally, we note that above-ambient hot utility requirements are provided, directly or indirectly, by some form of combustion process. • Below-ambient heating and above-ambient cooling can use ambient conditions as a final heat sink or source (e.g. cooling water systems ultimately reject heat to ambient). • This leaves below ambient cold utility; there is no simple equivalent to combustion to provide this (although absorption can do so in some circumstances). • Instead, the heat must be upgraded from the process temperature (e.g. 20°C) to ambient temperature by a refrigeration system. • Power will be required for this, and so it is a form of heat pump.
Transcribed Image Text:HEAT PUMPS A system which links heat and power needs • These generally work as a reversed heat engine, using a power input to upgrade heat from a low temperature to a higher one. • Heat pumps also include vapour recompression systems. Finally, we note that above-ambient hot utility requirements are provided, directly or indirectly, by some form of combustion process. • Below-ambient heating and above-ambient cooling can use ambient conditions as a final heat sink or source (e.g. cooling water systems ultimately reject heat to ambient). • This leaves below ambient cold utility; there is no simple equivalent to combustion to provide this (although absorption can do so in some circumstances). • Instead, the heat must be upgraded from the process temperature (e.g. 20°C) to ambient temperature by a refrigeration system. • Power will be required for this, and so it is a form of heat pump.
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