A two-stage compression refrigerati

A two-stage compression refrigeration system using refrigerant-134a as the working fluid is
considered. The fraction of the refrigerant that evaporates as it is throttled to the flash chamber, the amount
of heat removed from the refrigerated space, the compressor work, and the COP are to be determined.
Assumptions 1 Steady operating conditions exist. 2 Kinetic and potential energy changes are negligible. 3
The flashing chamber is adiabatic.
Analysis (a) The enthalpies of the refrigerant at several states are determined from the refrigerant tables to
be (Tables A-11, A-12, and A-13)

ผลลัพธ์ (แอฟริกา) 1:

N twee-fase kompressie Verkoeling stelsel met behulp van Koelmiddel-134a As Die werkende vloeistof is
oorweeg word. Die fraksie van wat verdamp Die Koelmiddel As dit gewurg na die Flash kamer, Die bedrag
van Verkoelde die hitte verwyder uit die ruimte, die Compressor werk en die COP is te bepaal.
Aannames 1 Steady bedryfstelsel toestande bestaan. 2 Kinetiese en potensiële energie veranderinge is weglaatbaar. 3
Die Flashing kamer is adiabatiese.
Ontleding (a) Die entalpieë van Koelmiddel by die verskillende state is bepaal vanaf die Koelmiddel Tabelle te
wees (Tabelle A-11, A-12, en A-13).