Experimental investigation on thermal OS/ORC (Oil Storage/Organic Rankine Cycle) system for waste heat recovery from diesel engine
Experimental investigation on thermal OS/ORC (Oil Storage/Organic Rankine Cycle) system for waste heat recovery from diesel engine
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DOI：
10.1016/j.energy.2016.04.062
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发表时间：
2016-07
期刊：
影响因子：
9
通讯作者：
G. Shu;Mingru Zhao;H. Tian;Haiqiao Wei;Xingyu Liang;Yongzhan Huo;W. Zhu
中科院分区：
文献类型：
--
作者：
G. Shu;Mingru Zhao;H. Tian;Haiqiao Wei;Xingyu Liang;Yongzhan Huo;W. Zhu
随着降低燃料消耗和环境污染的迫切需要，内燃机行业节能减排技术得到发展。构建了热 OS/ORC（储油/有机朗肯循环）系统，并针对 240 kW 柴油发动机废气的 WHR（废热回收）进行了初步测试。首先对不带OS/ORC的柴油机进行热平衡试验，研究废气的变化特性，然后对OS/ORC系统进行测试，以显示其抵抗高温和废气变化的能力。结果表明，导热油有效地将有机流体的工作温度降至210℃以下，远低于许多有机流体的分解温度。此外，导热油给系统的响应带来了显着的惯性，这可能对发动机状况的变化产生积极的影响。为了更多地了解OS/ORC系统的运行特性，定量研究了重要参数之间的相互影响以及对OS/ORC系统性能的影响。结果表明，在给定范围内，较高的蒸发压力可以明显改善OS/ORC的性能，而过热度的影响几乎可以忽略不计。
With urging needs to decrease the fuel consumption and environment pollution, energy saving and emission reduction technologies in the ICE (internal combustion engine) industry are developed. A thermal OS/ORC (Oil Storage/Organic Rankine Cycle) system was constructed and preliminarily tested for WHR (Waste Heat Recovery) from exhaust gas of a 240 kW diesel engine. The heat balance test of diesel engine without OS/ORC was conducted first to investigate the varying property of exhaust gas, then the OS/ORC system was tested to show its ability against high temperature and variation of exhaust gas. The results show that thermal oil effectively dropped the working temperature of organic fluid to less than 210 °C, which is much lower than the decomposition temperature of many organic fluids. Also, thermal oil brought a significant inertia to the response of system which could be positive against the variation of engine condition. In order to learn more about the operating characteristics of OS/ORC system, the impact of important parameters on each other was investigated quantitatively as well as on the performance of OS/ORC system. The results show that within the given range, higher evaporating pressure can obviously improve the performance of OS/ORC while the impact of superheat is nearly negligible.