缸內直噴氫引擎熱傳模型之研究

A study of heat transfer models in the direct injection hydrogen engine

林律宏(Lu-Hung Lin)

指導教授 ： 蔡瑞益

中原大學/工學院/機械工程研究所/碩士(2014年)

https://doi.org/10.6840/cycu201400881

摘要

為因應石化原料短缺與溫室效應日趨嚴重，世界各國致力於研發應用於內燃機的新型燃料，期望能降低石油用量並減少溫室氣體的排放。氫燃料作為內燃機的燃料來源已被各國學者評估其為具有相當的潛力。且其排放過程接近零汙染，運轉熱效率高於現階段使用汽油、柴油與液化石油氣內燃機等皆已被證實。

本研究以內燃機模擬軟體GT-Suite探討直噴式氫氣內燃機中的熱傳現象。軟體將模擬驗證氫氣內燃機汽缸壓力與最大汽缸壓力、指示平均有效壓力(IMEP)、制動扭矩(Brake torque)與質量消耗率(MFB)，並針對上述幾點延伸至熱傳係數作探討。

關鍵字

氫氣內燃機 ； 熱傳模型

並列摘要

In consideration of petroleum shortage and global warming is getting worse. Therefore, countries of the world dedicated to develop alternative fuels which applying to internal combustion engine, in order to reduce consumption of fossil fuel and emission of greenhouse gas. Hydrogen fuel has been assessed to a well potential solution on internal combustion engine all over the world. Furthermore, as hydrogen fuel is depleted, it is almost zero pollution and has higher thermal efficiency than petrol, diesel and natural gas in internal combustion engine.

In this study, we utilized GT-Suite which is simulation software for internal combustion engine to investigate the heat transfer phenomena of direct injection hydrogen engine. The software verified the cylinder pressure, maximum pressure, indicated mean effective pressure, Brake Torque, and mass fraction burned of hydrogen engine. Finally, with the points above, we extended discussion to heat transfer coefficient.

並列關鍵字

GT-Power ； hydrogen engine

參考文獻

International Journal of Energy Research”, p.1031~1046, 2007.

[1] G.Woschni, “A universally applicable equation for the instantaneous

heat transfer coefficient in the internal combustion engine.”, SAE

[2] WJ.Annand, “ Heat transfer in the cylinders of reciprocating internal

combustion engines”, Proc Inst Mech Eng, p.973, 1963.