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NA-2243 — A Property Diagram to Illustrate Irreversibilities in the R12 Refrigeration Cycle

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Conference Proceeding by ASHRAE, 1972

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Description

Availability is the thermodynamic property which measures the potential of a system to do work when restricted by the inevitable surroundings at To and Po. Unlike energy, availability is not conserved and any degradation by friction, or by heat transfers through a temperature difference, results in destruction of availability. The destruction of availability is called irreversibility.

This paper presents a property diagram (Fig. 1), for R12, which allows convenient availability analyses of vapor-compression refrigeration cycles. The diagram graphically displays the irreversibilities occurring within the cycle while also illustrating the availability flow into or out of the system.

Citation: ASHRAE Transactions, Volume 78, Part 2, Nassau, Bahamas

Product Details

Published:
1972
Number of Pages:
5
File Size:
1 file , 450 KB
Product Code(s):
D-NA-2243