RefrigerationCâu 68 / 110
A refrigerant metering device such as a fixed orifice or TXV creates what effect on the refrigerant?
a.Raises its pressure
b.Condenses it to liquid
c.Causes a pressure drop so it can boil at a low temperature in the evaporator
d.Superheats the vapor before the condenser
Giải thích
The metering device restricts flow, dropping the high-pressure liquid to a low pressure so it can boil at a low temperature and absorb heat in the evaporator. This division between high and low sides is central to the cycle. TXVs also modulate this flow to control superheat.
Luyện miễn phí toàn bộ 110 câu hỏi — không cần đăng ký.
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