The present study explores the thermofluid characteristics of a corrosion-resistant, thermally enhanced polymer composite, seawater-methane heat exchanger module for use in the liquefaction of natural gas on offshore platforms. Several metrics, including the heat transfer rate, the mass-specific heat transfer rate, and the total coefficient of performance (COP_T), are used to compare the thermal performance of polymer composites having a range of thermal conductivities with that of corrosion-resistant metals. For operating conditions considered typical of the natural gas liquefaction industry in the Persian Gulf a 10 W/m K polymer composite is found to provide nearly identical heat transfer rate to that of a corrosion-resistant titanium heat exchanger, almost 50% higher mass-specific heat transfer than for titanium (at 200 W pumping power), and COP_T values approximately twice that of a least-material titanium heat exchanger. The results contribute to establishing the viability of using polymer composites for gas-liquid heat exchanger applications involving seawater and other corrosive fluids.
展开▼
机译:本研究探索了用于海上平台液化天然气的耐腐蚀,热增强聚合物复合材料,海水-甲烷热交换器模块的热流体特性。包括热传递率,质量传热率和总性能系数(COP_T)在内的几个指标用于比较具有一定导热率的聚合物复合材料和耐腐蚀金属的热性能。对于波斯湾天然气液化工业通常认为的运行条件,发现10 W / m K聚合物复合材料的传热速率与耐腐蚀钛热交换器的传热速率几乎相同,质量比提高近50%热量传递比钛(在200 W的泵浦功率下)要高,并且COP_T值约为最小材料钛热交换器的两倍。结果有助于确立将聚合物复合材料用于涉及海水和其他腐蚀性流体的气液热交换器应用的可行性。
展开▼