4. Condensers
In any refrigeration machine, the condenser is the device used to remove the heat of desuperheating, condensation and subcooling, which we remind you is the sum of the heat extracted from the evaporator and the work of compression. In a heat pump, this device, which plays the same role, becomes the heat emitter.
In cascade systems, which by definition comprise two circuits each operating with a particular fluid, the evaporator of the high-temperature system (e.g. R717 (ammonia)) is the condenser of the low-temperature system (e.g. R744 (CO 2 )).
Condensers fall into three categories, depending on the nature of the hot source
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- Compresseurs pour fluides frigorigènes. Présentation des performances - ISO 9309 -
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In the past, it was defined by a decree of 1943, subsequently revised in 1960. As part of the harmonization of technical regulations, the European Union has issued a Pressure Equipment Directive (PED) (no. 97/23), which becomes the only rule in force in each member state; for France, the transcription is the subject of a decree and order no. 99-1046 of 13/12/1999.
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