["1. 123kpa

2017-04-20View Original

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113kpa 125℃的水，降压到101kpa 100℃的水，会产生多少蒸汽？

Reply #22017-04-21

也可以通过计算焓值变化，除以水汽化热得到结果

Reply #32017-04-21

我查相应的资料：125℃的水的焓值是 525.33(kJ/kg)，而100℃水的焓值是419.54(kJ/kg)，水的汽化热是选什么温度下的汽化热大概是 2200(kJ/kg) 结果：（525.33-419.54）/2200=105.79/2200=0.048 即：1t 125℃的水变成100℃的水，会产生 0.048*1t=48kg的水蒸气以上计算是否正确？

Reply #42017-04-21

这个用aspen一算就可以了

Reply #52017-04-21

你稍等一会，我帮你用aspen算算啊

Reply #62017-04-21

晕！水在113kpa 125℃的条件下是水蒸气，降压后还是水蒸气！这问题，晕！

Reply #72017-04-21

我厂有一个压力容器，压力维持在113kpa，底部温度是125℃，底部连续排污，主要成分是水，排放口的下游是常压余热回收，温度控制在100℃，我们需要计算能产生多少蒸汽，剩余多少100℃的水？

Reply #82017-04-24

水在113kpa 125℃的条件下是水蒸气，降压后还是水蒸气

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