Study of the Performance of Small-Sized Engines Operating under Overloaded Conditions Compared to TIS 787-2551
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Abstract
This research aims to study and compare the performance of a small 4-stroke diesel engine with a small single-cylinder horizontal 180-degree crankshaft diesel engine with a maximum power of 8.5 kW compared to TIS 787-2551, operating at maximum power and speed control using SAE 30-40 lubricating oil, wet air filter type, with a single piston with a bore diameter of 92 mm, stroke length of 96 mm, total displacement volume of 638 cm3, compression ratio of 19.4:1, and a water-cooling system with a coolant capacity of 2.09 m3, designed for continuous operation for 10 hrs. Injection pressure of 125 kg/cm2, with a pre-top dead center (TDC) opening position of 16.51 degrees and post-bottom dead center (BDC) closing position of 35.38 degrees for the intake valve, and a pre-BDC opening position of 50.71 degrees and post-TDC closing position of 20.34 degrees for the exhaust valve. Tested under initial atmospheric pressure of 761 mmHg, post-test atmospheric pressure of 760 mmHg, relative humidity at the start of testing at 51%, increasing to 78% after testing. Smoke emissions must not exceed 30% of the Bosch smoke meter, lubricating oil temperature must not exceed 120ºC, and noise levels must not exceed 100 dBs after testing. It was found that the tested small engine produced a maximum output power of 7.6 kW at 2,405 rpm, maximum torque of 33.8 N.m at 1,812 rpm, fuel consumption rate of 304 g/kWh at 2,405 rpm, smoke emissions of 5.9% at 2,450 rpm, and a maximum noise level of 93.6 dBs at 2,405 rpm.
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References
P. Funkeaw, “Testing Performance of Small Diesel Engine by Using Duel Fuel with Biogas.” in The 4th National Conference on Technical Education., King Mongkut’s University of Technology North Bangkok, Bangkok, Thailand, 2011, pp. 156-161.
P. Funkeaw, K. Pongput, B. Puengsuk, P. N. Lampang, “A Comparative Study on Engine Performance of Modified Diesel Engine with Dual Biogas and Pure Biogas Fuel,” RMUTL. Eng. J., vol.2, no.1, pp. 25-32, 2017.
Thai Standards Institution, Test Method of Performance of Small Size Diesel Engines for Land Use Thai Standards Institution, TIS 787-2551, 2551.
E. Jiaqiang, T. Liu, W.M. Yang, J. Li, J. Gongand and Y. Deng, “ Effects of fatty acid methyl esters proportion on combustion and emission characteristics of a biodiesel fueled diesel engine,” Energy Conversion and Management, vol.159, pp.244-253, 2021.
E. Jiaqiang, M. Pham, Y. Deng, T. Nguyen, V. Duy, D. Le, W. Zuo, Q. Peng and Z. Zhang, “ Effects of injection timing and injection pressure on performance and exhaust emissions of a common rail diesel engine fueled by various concentrations of fish-oil biodiesel blends,” Energy, vol.149, pp.179-189, 2021.
JISB 8018, Japanese Industrial Standard Test Method of Performance of Small Size Diesel Engine of Land Use, 1998.
M. Pirunkaset, Internal Combustion Engines. Bangkok: SE-Ed., 2001.
Willard W. Pulkrabek, Engineering Fundamentals of the Internal Combustion Engine. United states of America: Pearson Prentice Hall, 2004.
L. Suprachai, R. Isra and K. Saiprakit,“ Study of Energy Efficiency for Single Cylinder Small Engine,” J RMUTP Research Spinal, vol.6] no.2, pp.156-166, 2013.
K. Neramit, D. Chaiyot, T. Channarong,“Study on the Performance of Small Size Diesel Engine Using Fish Oil Blended with Biodiesel as Fuel,” J Industrial Technology, vol.17, no. 3, pp.99-112, 2021.
F. Pratuang, P. Kaninb, P. Bodeesorn , N. Puttipong, “ A Comparative Study on Engine Performance of Modified Diesel Engine with Dual Biogas and Pure Biogas Fuel,” J RMUTL Eng, vol. 2, no. 3, pp.25-35, 2017.
J.N. Nair, A.K. Kaviti and A. K. Daram, “ Analysis of performance and emission on compression ignition engine fueled with blends of Neem biodiesel.” J Petroleum, vol. 26, no.4, pp.927-931, 2017.