Optimization of Rankine Cycle Waste Heat Recovery System for Gasoline Engines Based on Genetic Algorithms

赵欣颖; 高文志; 卫利锋; 张攀; 魏招毅; 张晋新

doi:10.13949/j.cnki.nrjgc.2020.01.007

您当前的位置：

首页 >

文章列表页 >

Optimization of Rankine Cycle Waste Heat Recovery System for Gasoline Engines Based on Genetic Algorithms

更新时间：2026-04-16

- Optimization of Rankine Cycle Waste Heat Recovery System for Gasoline Engines Based on Genetic Algorithms
- Vol. 41, Issue 1, Pages: 49-56(2020)
- 作者机构：
  
  天津大学内燃机燃烧学国家重点实验室,天津,300072
- 作者简介：
- 基金信息：
- DOI：10.13949/j.cnki.nrjgc.2020.01.007
  CLC：
- Published：2020
- 稿件说明：
移动端阅览
赵欣颖，高文志，卫利锋，张攀，魏招毅，张晋新.基于遗传算法的汽油机朗肯循环余热回收系统的优化[J].内燃机工程,2020,41(1):49-56.

赵欣颖, 高文志, 卫利锋, et al. Optimization of Rankine Cycle Waste Heat Recovery System for Gasoline Engines Based on Genetic Algorithms[J]. 2020, 41(1): 49-56.
赵欣颖，高文志，卫利锋，张攀，魏招毅，张晋新.基于遗传算法的汽油机朗肯循环余热回收系统的优化[J].内燃机工程,2020,41(1):49-56. DOI： 10.13949/j.cnki.nrjgc.2020.01.007.

赵欣颖, 高文志, 卫利锋, et al. Optimization of Rankine Cycle Waste Heat Recovery System for Gasoline Engines Based on Genetic Algorithms[J]. 2020, 41(1): 49-56. DOI： 10.13949/j.cnki.nrjgc.2020.01.007.

摘要

为了更加高效利用汽油机排气余热，分析了某款汽油机排气余热回收潜力，建立了基于蒸发器和活塞式膨胀机的汽油机-朗肯循环联合余热回收系统模型。利用遗传算法，同时考虑膨胀机输出功、排气利用率、蒸发器效率和膨胀机绝热效率，以膨胀机输出功和系统总效率为优化目标，以蒸发压力和膨胀机转速为优化变量，对汽油机4个工况下朗肯循环系统的最佳运行参数进行了研究。结果表明，在整个发动机转速范围内，排气最大可利用效率均高于46%，转速越高则排气品质越高。在不同工况下存在最优的膨胀机转速和蒸发压力。经过优化，在选取的4个工况下，功率提高率均在6%以上，最高达到7.08%。

Abstract

In order to utilize gasoline engine waste heat more efficiently

the waste heat recovery potential of a gasoline engine was studied. A model of gasoline engine-Rankine cycle waste heat recovery system based on evaporator and expander was established. By using the genetic algorithm and considering the output and adiabatic efficiency of the expander

the exhaust availability and evaporator efficiency

the optimum operating parameters of the system under four engine operating conditions were optimized with the output power of the expander and the total system efficiency as optimization objectives

the evaporation pressure and expander speed as optimization variables. The results show that the maximum exhaust utilization rate is higher than 46% in the whole engine speed range. The exhaust quality increases with the speed. Under different working conditions

there are the optimum expander speed and evaporation pressure. After optimization

the power under the four selected working conditions is increased by more than 6%

the highest up to 7.08%.

关键词

Keywords

references

Views

895

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

No data

Related Author

No data

Related Institution

No data

AI问答

⁰