A、由于节流是一个等焓过程,因此节流本身并不制冷。
B、节流后温度降低的程度,与节流前后的压差有关,压差越大温度越低。
C、气体在节流后温度降低的程度,除了与节流前的状态有关,还与节流效应的值有关。
D、任何气体只要存在节流过程,温度就一定会降低。
第1题:
空分装置补充冷量损失的方法除膨胀机制冷外,还有等温节流效应。()
此题为判断题(对,错)。
第2题:
第3题:
在制冷机中十分重要的是节流过程,下列关于节流过程哪种是正确的? Throttling is very important in a refrigerator. Which of the following is correct about throttling?
A.氟里昂从大管子流向小管子; Freon flows from the big pipe to the small pipe;
B.氟里昂从小管子流向大管子; Freon flows from the smaller pipe to the larger pipe;
C.氟里昂从冷管子流向热管子; Freon flows from cold pipe to hot pipe;
D.氟里昂不流动; Freon does not flow;
第4题:
第5题:
36、在制冷机中十分重要的是节流过程,下列关于节流过程哪种是正确的? Throttling is very important in a refrigerator. Which of the following is correct about throttling?
A.氟里昂从大管子流向小管子; Freon flows from the big pipe to the small pipe;
B.氟里昂从小管子流向大管子; Freon flows from the smaller pipe to the larger pipe;
C.氟里昂从冷管子流向热管子; Freon flows from cold pipe to hot pipe;
D.氟里昂不流动; Freon does not flow;