天津工业大学学报2017，Vol.36Issue(4)：79-83,88,6.DOI:10.3969/j.issn.1671-024x.2017.04.016
纺织厂空压机排气末端换热器的设计
Design of exhaust heat exchanger for air compressor in textile mill
摘要
Abstract
In order to energy-saving emission reduction, the high temperature exhaust gas compressed by air compressor in textile mill is recovered to generate electricity by organic Rankine cycle (ORC). The internal fluid flow structure in a new exhaust heat exchanger was designed, and the fluid mathematical model for flow velocity, pressure, turbulent kinetic energy and dissipation rate of turbulent flow in the pipes was created. The flow and heat transfer of the internal fluid were analyzed by CFD software. The result showed that the effect of heat transfer is obvious with the increase of turbulence in internal fluid flow. The heat transfer performance is better with the higher velocity of hot air and the lower velocity of refrigerant. The larger fin size leads to smaller heat transfer coefficient and lower heat transfer efficiency. The heat transfer efficiency of the exhaust heat exchanger is up to 95.3%.关键词
纺织厂/空压机/排气/有机朗肯循环/换热器/CFD/湍流/换热效率Key words
textile mill/air compressor/exhaust gas/organic Rankine cycle/heat exchanger/CFD/turbulence/heat exchange efficiency分类
能源科技引用本文复制引用
李新禹,孟林,郝旭涛,陈林..纺织厂空压机排气末端换热器的设计[J].天津工业大学学报,2017,36(4):79-83,88,6.基金项目
天津市自然科学基金资助项目(C16JCZDJC31400) （C16JCZDJC31400）
