蒸汽壓常數 的英文怎麼說
中文拼音 [zhēngqìyāchángshǔ]
蒸汽壓常數
英文
vapour pressure constant-
Indeed, atmospheric distillation may be terminated with a lower boiling fraction ( “ cut ” ) if it is thought that vacuum or steam distillation will yield a better quality product or if the process appears to be economically more favorable
但是，經過蒸餾處理的大多數原油，包括比重較大、粘度更大的原油，一般都分離為較輕組分（氣、汽油、粗汽油、煤油和粗柴油）和殘渣，或者更多稱作常壓重油。The results indicate that the qualitative behavior in this process is similar to that observed in condensation of vapor at or above atmosphere pressure, the coefficient of heat transfer for condensation in tube, the coefficient of heat transfer in total increase with the increasing of heat flux density and vapor pressure. however, heat flux density and vapor pressure have a more significant effect on them
發現水平管內低壓蒸汽冷凝過程與常壓條件下蒸汽冷凝過程相同，管內冷凝傳熱膜系數、總傳熱系數隨熱流密度、蒸汽壓力的增大而增大，但熱流密度、蒸汽壓力對低壓蒸汽冷凝有著更為顯著的影響，管外冷卻水流量對其影響並不明顯。However, the majority of crude oils, and this applies to the heavier, more viscous petroleums, which are processed by distillation, are usually separated into the lighter fractions ( gas, gasoline, naphtha, kerosene, and gas oil ) and the bottom or, as it is more generally called, the reduced crude
但是，經過蒸餾處理的大多數原油，包括比重較大、粘度更大的原油，一般都分離為較輕組分（氣、汽油、粗汽油、煤油和粗柴油）和殘渣，或者更多稱作常壓重油。The authors first apply basic theory of equivalent heat drop on the common circulation heat calculating model for thermal system in supercritical pressure power unit with second reheat cycles and other kind of condensing steam turbine by mathematical derivation strictly, based on the normal energy balance and theory of equivalent heat drop, aiming at characteristics of thermal system in which there are outer steam coolers that high pressure heater and low pressure heater carry
摘要以常規熱平衡方法和等效熱降理論為基礎，針對二次再熱超臨界機組熱力系統高低壓加熱器均設置外置式蒸汽冷卻器的特點，經過嚴格的數學推導，將等效熱降理論應用於二次再熱超臨界機組熱力系統循環吸熱量計算的研究，並提出了適用於不同類型凝汽式機組的通用數學計算模型。There will be a hot water layer in the water of cmt when vapour spews to uppercooling water surface vertically and coagulates directly. the higher of the vapour pressure of prz and the initial water temperature of cmt are, the deeper the hot water layer is. and obtaining the experience formula of the hot water layer is as follows : the condensation coefficient is high when vapour coagulate at first, then it will lessen with the process of coagulation, the higher of the vapour pressure of prz and the initial water temperature of cmt are, the higher of condensation coefficient is
蒸汽垂直噴入過冷水表面凝結時， cmt中水有明顯熱分層現象， prz中飽和蒸汽壓力越高， cmt中水初始溫度越高，熱分層厚度越大，熱分層厚度的經驗關聯式為：凝結剛開始時，凝結換熱系數非常大， ，隨著凝結的進行，凝結換熱系數越來越小， prz中飽和蒸汽壓力越高， cmt中水初始溫度越高，凝結換熱系數越大。分享友人