Feasibility study of environmental relative humidity through the thermodynamic effects on the performance of natural gas liquefaction process
作者： Muhammad Abdul Qyyum , Le Quang Minh , Wahid Ali , Arif Hussain , Alireza Bahadori
DOI: 10.1016/J.APPLTHERMALENG.2017.08.090
关键词: Liquefied natural gas 、 Heat transfer 、 Refrigerant 、 Process engineering 、 Heat transfer coefficient 、 Waste management 、 Enthalpy 、 Relative humidity 、 Liquefaction 、 Evaporative cooler 、 Engineering
摘要: Abstract This study examined the thermodynamic effects of relative humidity (RH) on performance natural gas liquefaction process. A single mixed refrigerant (SMR) process was chosen for this because its simplicity and compactness. In addition, it is considered most promising liquefied (LNG) floating production, storage offloading (FPSO) unit. The SMR optimized using a modified coordinate descent methodology, which resulted in 13.6% energy savings. Subsequently, an interface between commercial software Aspen Hysys® MS-Excel VBA carried out to RH. results showed that RH has pronounced LNG cycle by affecting enthalpy balance around air coolers, ultimately affects overall compression power, exchanger performance, other design operational parameters. Furthermore, when increased from 0% 95%, UA value (product heat transfer coefficient area) coolers power decreased linearly, respectively. Moreover, cryogenic as a 4th order polynomial function terms log-mean difference. can provide insight into selection appropriate parameters plants associated with regions low or high humidity.
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