机械科学与技术2017，Vol.36Issue(10)：1477-1483,7.DOI:10.13433/j.cnki.1003-8728.2017.1001
用于汽油机余热回收的蒸发器计算与试验研究
The Simulation and Experiment Study on Evaporator for Waste Heat Recovery of Gasoline Engine
摘要
Abstract
On the research of exhaust waste heat recovery by using Rankine cycle,a type of evaporator with multilayer spiral tubes is proposed.A mathematical model is generated to evaluate the performance of the evaporator according to its structure parameters and working characteristics.Based on this model,start-stop parameters of each heat transfer section is analyzed.The simulation results show that the increases of the mass flow rate of the working fluid can lead to a reduced outlet temperature of working fluid and exhaust while the exhaust energy utilization rate is increased.The heat transfer area can limit the increase of the mass flow rate of the working fluid and superheat.To evaluate the performance of evaporator,the Rankine cycle waste heat recovery system is established and tested.The test results indicate that the maximum efficiency of evaporator is 89.33％ and the maximum actual exhaust energy utilization rate is 41.93％.关键词
余热回收/朗肯循环/多层螺旋管/蒸发器Key words
waste heat recovery/rankine cycle/multi-layer spiral tubes/evaporator分类
能源科技引用本文复制引用
何王波,高文志,王志强,武聪山..用于汽油机余热回收的蒸发器计算与试验研究[J].机械科学与技术,2017,36(10):1477-1483,7.基金项目
国家重点基础研究发展计划973项目(2011CB707206)资助 （2011CB707206）
