车用柴油机余热回收有机朗肯循环系统方案热经济性对比分析

doi:10.11949/j.issn.0438-1157.20170004

化工学报 ›› 2017, Vol. 68 ›› Issue (8): 3258-3265.DOI: 10.11949/j.issn.0438-1157.20170004

车用柴油机余热回收有机朗肯循环系统方案热经济性对比分析

柴俊霖¹, 田瑞¹, 杨富斌², 张红光²

1 内蒙古工业大学能源与动力工程学院, 内蒙古呼和浩特 010051;
2 北京工业大学环境与能源工程学院, 北京 100124

收稿日期:2017-01-03 修回日期:2017-03-21 出版日期:2017-08-05 发布日期:2017-08-05
通讯作者: 田瑞
基金资助:
国家自然科学基金项目（51376011）；北京市自然科学基金项目（3152005）；内蒙古工业大学科研项目（ZD201606）。

Thermo-economic comparative analysis of different organic Rankine cycle system schemes for vehicle diesel engine waste heat recovery

CHAI Junlin¹, TIAN Rui¹, YANG Fubin², ZHANG Hongguang²

1 College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, Inner Mongolia, China;
2 College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China

Received:2017-01-03 Revised:2017-03-21 Online:2017-08-05 Published:2017-08-05
Supported by:
supported by the National Natural Science Foundation of China (51376011), the Natural Science Foundation of Beijing (3152005) and the Scientific Research Program of Inner Mongolia University of Technology (ZD201606).

摘要/Abstract

摘要：

为实现对车用柴油机余热能量的充分回收，针对简单有机朗肯循环系统和双有机朗肯循环系统进行对比分析研究。根据某车用六缸柴油机的台架试验结果，在研究其变工况下余热特性的基础上，建立两种有机朗肯循环系统的热力学模型和经济模型，并对两个系统的热经济性进行了对比分析。结果表明：在柴油机整个工况范围内，双有机朗肯循环系统的净输出功率、功率提升率和有效燃油消耗率改善度均优于简单有机朗肯循环系统，最大值分别为24.38 kW、8.71%和8.01%；双有机朗肯循环系统的单位能量产出成本为0.8089 CNY·（kW·h）^-1，比简单有机朗肯循环系统低19.26%。

关键词: 车用柴油机, 余热回收, 有机朗肯循环, 系统方案, 热经济性

Abstract:

In order to have a full recovery of the waste heat from a vehicle diesel engine, simple organic Rankine cycle (ORC) system and dual-loop organic Rankine cycle (ORC) system are compared and investigated. According to bench test results of a vehicle six-cylinder diesel engine, the thermodynamic models and economic models of both ORC systems are established, and the thermo-economic comparative analysis of both ORC systems are done on the basis of the study on waste heat characteristics under engine various operating conditions. The results show that, under engine entire operating conditions, net power output, augmentation proportion of power output and improvement of brake specific fuel consumption (BSFC) of the dual-loop ORC system are better than the simple ORC system, the maximum value are 24.38 kW、8.71% and 8.01% separately; Levelized Energy Cost (LEC) of the dual-loop ORC system is 0.8089 CNY·(kW·h)^-1 and 19.26% lower than the simple ORC system.

Key words: vehicle diesel engine, waste heat recovery, organic Rankine cycle, system scheme, thermo-economy

中图分类号:

TK406

柴俊霖, 田瑞, 杨富斌, 张红光. 车用柴油机余热回收有机朗肯循环系统方案热经济性对比分析[J]. 化工学报, 2017, 68(8): 3258-3265.

CHAI Junlin, TIAN Rui, YANG Fubin, ZHANG Hongguang. Thermo-economic comparative analysis of different organic Rankine cycle system schemes for vehicle diesel engine waste heat recovery[J]. CIESC Journal, 2017, 68(8): 3258-3265.

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车用柴油机余热回收有机朗肯循环系统方案热经济性对比分析

Thermo-economic comparative analysis of different organic Rankine cycle system schemes for vehicle diesel engine waste heat recovery

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