1. Reminders
The term reversibility is commonly used here, but has no thermodynamic connotations.
A refrigeration machine is said to have a liquefiable fluid if it consists of a closed circuit in which a pure fluid or a mixture of fluids, called a refrigerant, can exist in both vapour and liquid states (figure 1 ).
When the system operates as a "refrigerating machine", it pumps heat from the cold source SF at temperature T F and rejects it to the hot source SC at temperature T C .
If some of the heat rejected at the SC can be used at temperature T...
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Reminders
Defining an installation
Statistical and economic data
All these data were supplied by UNICLIMA.
Air conditioning – Refrigeration
In 2007, UNICLIMA companies saw their business grow by +5.7% compared to 2006. Business is therefore growing strongly on both the domestic and export markets.
As a result, and in contrast to previous years, the industry's growth rate is very close to the average for the mechanical...
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