Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/2901
標題: 甲醇與重組氫氣混合燃料之高效率引擎探討
Investigations on the high efficiency internal combustion engine using mixtures of methanol and reformed hydrogen
作者: 盧亮均
Lu, Liang Chun
關鍵字: 氫氣引擎;hydrgen engine;甲醇引擎;廢熱回收;甲醇重組器;methanol engine;exhaust energy recovery;methanol reformer
出版社: 機械工程學系所
引用: [1]中華民國經濟部能源局2010年能源產業技術白皮書, p261. [2]Kanae Niwa,Shigeru Inoue,”Advance of Technology on Methanol Fuels and Methanol Vehicles in Japan”, SAE, P-294, 952753. [3]Ayhan Demirbas, 2009, Biohydrogen For Future Engine Fuel Demands , Taylor & Francis Group, LLC, p93. [4]Allen Fuhs, Hybrid Vehicles and the Future of Personal, Transportation, Springer Dordrecht Heidelberg London New York, 2009. [5]劉福水, 郝利, Heitz Peter Berg, “氫燃料內燃機現況與發展展望”, Automotive Engineering, vol.7, pp. 621-625, 2006. [6]Ogston, A.R., ”Gasoline-a 1937 view”, Society of Automotive Engineers, pp.75-80, 1980. [7]Chang-Ming Gong, Kuo Huang, Jing-Long Jia, Yan Su, Qing Gao, Xun-Jun Liu, ”Improvement of fuel economy of a direct-injection spark-ignition methanol engine under light loads”, Fuel, vol.90, p1826–1832, 2011. [8]Chang-Ming Gong, Kuo Huang, Jing-Long Jia, Yan Su, Qing Gao, Xun-Jun Liu,” Regulated emissions from a direct-injection spark-ignition methanol engine” , Energy, vol, 36, p3379-3387, 2011. [9]M. Bahattin Celik, Bulent Ozdalyan, Faruk Alkan, “The use of pure methanol as fuel at high compression ratio in a single cylinder gasoline engine” , Fuel, vol.90, p1591–1598, 2011. [10]Chen Liang, Changwei Ji, Xiaolong Liu,“Combustion and emissions performance of a DME-enriched spark-ignited methanol engine at idle condition” ,Applied Energy,vol.88,p3704–3711,2011. [11]Z.H. Zhang, C.S. Cheung, T.L. Chan, C.D. Yao,”Experimental investigation of regulated and unregulated emissions from a diesel engine fueled with Euro V diesel fuel and fumigation methanol” Atmospheric Environment,vol,44,p1054-1061,2011. [12]Liu Shenghua, Eddy R. Cuty Clemente, Hu Tiegang , Wei Yanjv,” Study of spark ignition engine fueled with methanol/gasoline fuel blends”, Applied Thermal Engineering ,vol27,p1904–1910,2007. [13]Cenk Sayin,” Engine performance and exhaust gas emissions of methanol and ethanol–diesel blends” Fel,vol 89, p3410–3415,2010. [14]J.M. Gomes Antunes, R. Mikalsen, A.P. Roskilly,”International jurnal of hydrogen energy”,vol 34,p6516-6522,2009. [15]Erol Kahramana, S. Cihangir Ozcanlıb, Baris Ozerdem, “An experimental study on performance and emission characteristics of a hydrogen fuelled spark ignition engine”,International Journal of Hydrogen Energy,vol.32,p.2066-2072,2007. [16]Ali Mohammadi, Masahiro Shioji,Yasuyuki Nakai,Wataru Ishikura, Eizo Tabo,” Performance and combustion characteristics of a direct injection SI hydrogen engine”, International Journal of Hydrogen Energy, vol.32, p.296-304, 2007. [17]Y.Y. Kim, Jong T. Lee, Gyeung H. Choi, ”An investigation on the causes of cycle variation in direct injection hydrogen fueled engines”, International Journal of Hydrogen Energy, vol.30, p.69-76, 2005. [18]R. Hari Ganesh, V. Subramanian, V. Balasubramanian, J.M. Mallikarjuna, A. Ramesh, R.P. Sharma, “Hydrogen fueled spark ignition engine with electronically controlled manifold injection : An experimental study”, Renewable Energy, vol.33, p1324-1333, 2008. [19] Nicolae Apostolescu, Radu Chiriac, “A study of combustion of hydrogen-enriched gasoline in a spark ignition engine”, SAE paper no. 960603, p26-29, 1996. [20] Y. Hacohen, E. Sher, “Fuel consumption and emission of SI engine fueled with H2-enriched gasoline”, Paper No.899403, IEEE Energy Conversion Engineering Conference, Proceedings of the 24th Intersociety, 6-11 Aug., p2485-2490, 1989. [21]. Edward J. Tully and John B. Heywood, “Lean-burn characteristics of a gasoline engine enriched with hydrogen from a plasmatron fuel reformer”, SAE paper 2003-01-0630, 2003. [22]駱庭煜, “添加富氫氣體於四行程噴射機車引擎中之性能和排氣探討”, 碩士論文, 中興大學機械工程系, 民國98年。 [23] Jau-Huai Lu, Shun-Da Yeh and Liang-Chun Lu, “The Performance of Four Stroke Gasoline Motorcycle Engine Added with Hydrogen Rich Gas from a Methanol Reformer”, The International Conference on Green Technologies, 2010. [24]葉順達,“以排氣廢熱來重組甲醇的富氫燃料引擎之性能改善與排氣減量探討”,碩士論文,中興大學機械工程系,2011。 [25]Neil Edward, Suzanne R. Ellis al., “On board hydrogen generation for tramsport application : the HotSpot Methanol Processor”, Journal Of Power Sources, p123-128, 1998. [26] Bard Lindstrom, Lars J. “ Pettersson, Development of a methanol fuelled reformer for fuel cell applications”, Journal of Power Sources, vol. 118, p71-78, 2003. [27]P.J.de Wild, M.J.F.M.Verhaak, ”Catalytic Production of Hydrogen From Methanol”, 4th European congress on Catalysis , Rimini, Vol.60, Nos.1-2, pp.3-10, 1999. [28]Han, J.S.,Lee, S.M.Chan, H.S., ”Metal Membrane-type 25-kW methanol fuel processor for fuel-cell hybrid vehicle, ”Journal of Power Sources, Vol.122, pp.484-49. [29]林弘民, “燃料電池用自發熱甲醇重組器性能量測與數值模擬”,碩士論文, 中興大學機械工程研究所,民國93年. [30]何建儒, “內建熱源式甲醇重組器性能量測”,碩士論文,中興大學機械工程研究所,民國96年.
摘要: 
本篇論文探討重組氣體和甲醇的混合燃料使用在四行程單缸引擎上對於引擎性能和空氣汙染排放的影響。結合甲醇引擎與廢熱回收式的甲醇重組器系統,利用引擎排氣的廢熱來重組產生含有高濃度氫氣的重組氣,再將產生的氣體導入引擎作為輔助燃料。這種作法的好處是一方面利用廢熱回收來提高燃料熱值,一方面利用氫氣火焰傳播速度快的特性,可以有效提高引擎的整體熱效率。實驗結果顯示,引擎於高低負載狀態下導入重組氣進入汽缸,皆可有效提高熱效率。於低負載狀態下,重組氣流量為12.1L/min時引擎效率為24.8%,比起汽油提高了2.3%。另外也發現,導入富含氫氣的重組氣進入氣缸內與甲醇混合燃燒,將會大幅提高排氣中氮氧化物的濃度。在高負載狀態下,導入重組氣14.7L/min為輔助燃料時,氮氧化物濃度最高值達2550ppm。
本文亦建立引擎排氣廢熱和甲醇水在重組器內熱傳的模式,以計算甲醇重組所需要的能量和在銅管中所需要的熱傳距離。在引擎轉速為5000rpm排氣溫度為450℃情況下,導入重組氣的甲醇水的質量流率為7.92g/min時,物理變化共需要56cm的距離,其中甲醇和水蒸氣從100℃升溫至270℃所需要的熱傳長度最長,共占全長47.1%。

In this paper, a single-cylinder motorcycle engine and a steam reformer were used as a test stand to investigate the effect of adding hydrogen mixture on the engine efficiency and exhaust pollution. Addition of reformed gas may have two effects on engine efficiency. One is the enhancement of combustion due to the high speed of flame propagation characteristics of hydrogen, and the other is attributed to the recovery of exhaust thermal energy to improve the fuel heating value.
It was found in experiment that the engine efficiency can be improved at low load condition as well as high load condition. As the reformulated gas flow was 12.1 L/min, the engine efficiency was promoted to 24.8%, compared with the efficiency of 21.5% for gasoline engine at the same running condition. However, at high load condition, the NO emission was increased to 2550 ppm as the reformulated gas flow was 14.7 L/min.
The heat transfer model of the reforming process was also developed in this paper to evaluate the effectiveness of the reformer. It was found that as the engine speed was 5000 rpm and the exhaust temperature was 450℃, if the methanol flow rate was set to 7.92 g/min, a distance of 56 cm is required to complete the physical change of methanol solution, in which the heating of methanol and water vapor from 100℃ to 270℃ takes the major share of 47.1%.
URI: http://hdl.handle.net/11455/2901
其他識別: U0005-0608201216221900
Appears in Collections:機械工程學系所

Files in This Item:
File SizeFormat Existing users please Login
nchu-101-7099061035-1.pdf15.03 MBAdobe PDFThis file is only available in the university internal network    Request a copy
Show full item record
 

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.