为降低船用热气机的冷却功耗，本文提出舷外热管式冷却器的设计方案。基于重力无芯热管的热阻分析和热气机的输出功率分析，对针对P40发动机设计的热管式冷却器进行数值模拟，分析输出功率，验证设计可行性。研究结果表明：热管会增大发动机死体积比降低功率；发动机转速较低时，热管式冷却器性能较好；热管长度对发动机功率有影响。热气机的热管式冷却器的设计行之有效，且更适合中低转速的热气机。
In order to reduce the cooling consumption of marine Stirling engine, an outboard heat pipe cooler was designed. Based on the thermal resistance analysis of wickless gravity heat pipe and output power analysis of Stirling engine, taking P40 engine as an example, the feasibility of heat pipe cooler is validated through the numerical simulation and power analysis. The results show that heat pipe cooler reduces engine power due to the increase of dead volume. At low rotational speed, heat pipe cooler has good performance. In addition, the length of heat pipe is a factor to influence the engine power. The length of heat pipe evaporation section has a great influence on the engine power, while the length of heat pipe condensing section has little influence. The design of heat pipe cooler is feasible, and it is more suitable for low and medium speed Stirling engine.
2018,40(11): 121-125 收稿日期：2018-02-08
DOI：10.3404/j.issn.1672-7649.2018.11.024
分类号：TK172.4
作者简介：蒋竹凌(1993-),女,硕士研究生,研究方向为海洋装备散热技术
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