Experimental Research of Ship Waste Heat Utili-ation by TEG-ORC Combined Cycle

doi:10.7652/xjtuxb202008007

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Experimental Research of Ship Waste Heat Utili-ation by TEG-ORC Combined Cycle

更新时间：2025-07-09

- Experimental Research of Ship Waste Heat Utili-ation by TEG-ORC Combined Cycle
- Vol. 54, Issue 8, Pages: 50-57(2020)
- 作者机构：
  
  大连海事大学轮机工程学院,辽宁,大连,116026
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202008007
  CLC： TK121
- Online First：10 August 2020，
  
  Published：2020
- 稿件说明：
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Experimental Research of Ship Waste Heat Utili-ation by TEG-ORC Combined Cycle[J]. 2020, 54(8): 50-57.
DOI：

Experimental Research of Ship Waste Heat Utili-ation by TEG-ORC Combined Cycle[J]. 2020, 54(8): 50-57. DOI： 10.7652/xjtuxb202008007.

摘要

为了实现具有复杂特性的船舶多种余热的高效回收

提出了一种基于温差发电-有机朗肯循环(TEG-ORC)联合循环的船舶余热梯级利用系统。根据底循环对主机烟气的利用量

定义了TEG/ORC底循环比参数。通过实验研究

探索了在ORC蒸发压力为0.9 MPa的工况下

系统输出功率、热效率、多级余热利用量和发电成本等重要性能参数随底循环比的变化规律

并对联合循环系统的性能及其影响规律进行了评估。实验设计了热管强化换热装置用以克服前期研究中发现的TEG底循环热端换热瓶颈。结果表明:3种底循环比(0.369、0.508、0.615)工况下的实验结果与模拟结果基本一致; TEG-ORC联合循环系统更好地利用了多种船舶余热及TEG底循环的冷却散热

提升了余热利用性能和输出功率

使其热效率高于各底循环且发电成本低于各底循环; 在TEG/ORC底循环比为0.615时

联合系统输出功率为134.50 W

热效率为6.93%

发电成本为3.32元/(kW·h)。TEG-ORC联合循环可实现船舶多种烟气余热的梯级利用

提高余热利用量

并提升ORC底循环运行的稳定性和安全性。

Abstract

A waste heat cascade recovery system based on thermoelectric generation/organic Rankine cycle(TEG-ORC)combined cycle is proposed to achieve efficient recovery for various waste heat of vessels. A bottom cycle ratio parameter of TEG/ORC is defined according to the waste heat utili-ation of the main engine flue gas by different bottom cycles. Through subsequent experimental research

the law of main performance parameters such as system output power

thermal efficiency

multi-stage waste heat utili-ation and cost changing with bottom cycle ratio is studied under the condition of 0.9 MPa ORC evaporation pressure. Moreover

the performance of the combined cycle system and its parameter influence are evaluated. A heat pipe enhanced heat exchange device is designed in the experiment to overcome the heat exchange bottleneck in the hot end of the TEG bottom cycle. The experimental results from three groups with different bottom cycle ratios(0.369

0.508

0.615)are basically consistent with sim

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references

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