外文翻譯－冷卻系統(tǒng)利用流體吸熱交換器(已改無錯(cuò)字)
2023-01-18 05:18:04 本頁面
【正文】 r rates. It is related to the surface area of the heat exchanger. A zero surface area represents a system Without a liquidsuction heat exchanger Whereas a system having an infinite heat exchanger area corresponds to an effectiveness of unity. The liquidsuction heat exchanger effects the performance of a refrigeration system by in 4 fluencing both the high and loW pressure sides of a system. Figure 2 shoWs the key state points for a vapor pression cycle utilizing an idealized liquidsuction heat exchanger on a pressureenthalpy diagram. The enthalpy of the refrigerant leaving the condenser (state 3) is decreased prior to entering the expansion device (state 4) by rejecting energy to the vapor refrigerant leaving the evaporator (state 1) prior to entering the pressor (state 2). Pressure losses are not shoWn. The cooling of the condensate that occurs on the high pressure side serves to increase the refrigeration capacity and reduce the likelihood of liquid refrigerant flashing prior to reaching the expansion device. On the loW pressure side, the liquidsuction heat exchanger increases the temperature of the vapor entering the pressor and reduces the refrigerant pressure, both of Which increase the specific volume of the refr igerant and thereby decrease the mass floW rate and capacity. A major benefit of the liquidsuction heat exchanger is that it reduces the possibility of liquid carryover from the evaporator Which could harm the pressor. Liquid carryover can be readily caused by a number of factors that may include Wide fluctuations in evaporator load and poorly maintained expansion devices (especially problematic for thermostatic expansion valves used in ammonia service). （翻譯） 冷卻系統(tǒng)利用流體吸熱交換器 摘錄 加熱裝置在許多冷卻系統(tǒng)中被用到，用以制冷時(shí)遺留在蒸發(fā)器中的冷卻氣體和離開冷凝器發(fā)熱流體之間的能量的熱交換 .這些流體吸收或吸收熱交換器 ,在一些情形中，他們降低了系統(tǒng)性能 , 然而系統(tǒng)的某些地方卻得到了改善 . 雖然以前研究員已經(jīng)調(diào)查了流體吸熱交換器的性能 , 但是這項(xiàng)研究可能從早先研究的三種方式被加以區(qū)別 . 首先，這份研究開辟了一個(gè)無限的嶄新的與流體吸熱交換器有關(guān)聯(lián)的群體 .其次，這份研究拓寬了早先的分析包括新型制冷劑。第三 , 研究包括壓力的沖擊降低了流體吸熱交換器 的系統(tǒng)性能 . 在簡單的技術(shù)信息分析中表明流體吸熱交換器對冷卻系統(tǒng)性能的沖擊可能導(dǎo)致錯(cuò)誤的結(jié)論 .從詳細(xì)說明分析里 ,它能得出一個(gè)結(jié)論，那就是液體 吸加熱交換器在低壓區(qū)域上的臨界壓力使用 R507
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