Numerical study on steam injection in a turbocompound diesel engine for waste heat recovery
Numerical study on steam injection in a turbocompound diesel engine for waste heat recovery
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涡轮复合柴油机蒸汽喷射余热回收数值研究
DOI：
10.1016/j.apenergy.2016.10.135
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发表时间：
2017
期刊：
影响因子：
11.2
通讯作者：
Yin Yong
中科院分区：
文献类型：
--
作者：
Zhao Rongchao;Li Weihua;Zhuge Weilin;Zhang Yangjun;Yin Yong
蒸汽喷射和涡轮增压都是发动机余热回收的有效方法。通过这两种方法的结合所获得的燃料节省潜力尚不清楚。本文以前期开发的某型涡轮复合发动机为研究对象，研究了涡轮前喷汽对涡轮复合发动机节油潜力的影响。利用某型涡轮复合发动机的试验数据对循环模型进行了标定，得到了较高的精度。研究了蒸汽质量流量、蒸发压力和喷射位置对发动机性能的影响。此外，还研究了热液态水喷射对涡轮增压器涡轮机进气道的影响，结果表明，在涡轮增压器进气道喷射蒸汽可以降低涡轮复合式发动机在所有转速下的燃油消耗率。在1000 rpm工况下，最大节油率为6.15%.然而，在动力涡轮机入口处喷射蒸汽只能在高速条件下降低BSFC。此外，在排气中喷射热液态水并不能改善发动机的性能，与常规涡轮增压发动机相比，涡轮复合和蒸汽喷射的组合在不同转速下可使BSFC降低6.0-11.2%。
Steam injection and turbocompouding are both effective methods for engine waste heat recovery. The fuel saving potential obtained by the combination of the two methods is not clear. Based on a turbocompound engine developed in the previous study, the impacts of pre-turbine steam injection on the fuel saving potentials of the turbocompound engine were investigated in this paper.Firstly, thermodynamic cycle model for the baseline turbocompound engine is established using commercial software GT-POWER. The cycle model is calibrated with the experiment data of the turbocompound engine and achieves high accuracy. After that, the influences of steam mass flow rate, evaporating pressure and injection location on the engine performance are studied. In addition, the impacts of hot liquid water injection are also investigated.The results show that steam injection at the turbocharger turbine inlet can reduce the turbocompound engine BSFC at all speed conditions. The largest fuel reduction 6.15% is obtained at 1000 rpm condition. However, steam injection at power turbine inlet can only lower the BSFC at high speed conditions. Besides, it is found that hot liquid water injection in the exhaust cannot improve the engine performance.When compared with the conventional turbocharged engine, the combination of turbocompounding and steam injection can reduce the BSFC by 6.0–11.2% over different speeds.
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影响因子：
11.2
作者：
Jianqin Fu;Jing-ping Liu;Yong Wang;Banglin Deng;Yanping Yang;Ren-hua Feng;Jing Yang
通讯作者：
Jianqin Fu;Jing-ping Liu;Yong Wang;Banglin Deng;Yanping Yang;Ren-hua Feng;Jing Yang
入口温度和物质畸变对氢涡轮机气动热性能的综合影响
DOI：
10.1177/0957650915621416
发表时间：
2016-02
期刊：
Proceedings of the Institution of Mechanical Engineers - Part A: Journal of Power and Energy
影响因子：
--
作者：
Zhong-Nan Wang;Xin Yuan
通讯作者：
Xin Yuan
影响因子：
6.4
作者：
Rongchao Zhao;W. Zhuge;Yangjun Zhang;Yong Yin;Zhen Chen;Zhigang Li
通讯作者：
Rongchao Zhao;W. Zhuge;Yangjun Zhang;Yong Yin;Zhen Chen;Zhigang Li
影响因子：
11.2
作者：
G. Pasini;G. Lutzemberger;S. Frigo;S. Marelli;M. Ceraolo;R. Gentili;M. Capobianco
通讯作者：
G. Pasini;G. Lutzemberger;S. Frigo;S. Marelli;M. Ceraolo;R. Gentili;M. Capobianco
影响因子：
6.4
作者：
Cong Guo;Xiaoze Du;Lijun Yang;Yongping Yang
通讯作者：
Cong Guo;Xiaoze Du;Lijun Yang;Yongping Yang