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Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. [1] A heat pump is a mechanical system that transmits heat from one location (the "source") at a certain temperature to another location (the "sink" or "heat sink") at a higher temperature. [2]
A representative pressure–volume diagram for a refrigeration cycle. Vapour-compression refrigeration or vapor-compression refrigeration system (VCRS), [1] in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air conditioning of buildings and automobiles.
A thermal expansion valve is a key element to a heat pump; this is the cycle that makes air conditioning, or air cooling, possible. A basic refrigeration cycle consists of four major elements: a compressor, a condenser, a metering device and an evaporator. As a refrigerant passes through a circuit containing these four elements, air ...
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Based on: *Image:Flag of the United Kingdom.svg *Image:Flag of Ontario.svg *Image:Flag of Quebec.svg *Image:Flag of New Brunswick.svg *My own drawings A 200kb+monster File usage More than 100 pages use this file.
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The national flag of Canada (at left) being flown with the flags of the 10 Canadian provinces and 3 territories. The Department of Canadian Heritage lays out protocol guidelines for the display of flags, including an order of precedence; these instructions are only conventional, however, and are generally intended to show respect for what are considered important symbols of the state or ...
The National Flag of Canada (French: Drapeau national du Canada), [1] often referred to simply as the Canadian flag, consists of a red field with a white square at its centre in the ratio of 1∶2∶1, in which is featured one stylized, red, 11-pointed maple leaf charged in the centre. [2]