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All Journal Mekanika: Majalah Ilmiah Mekanika
Iwan Istanto
Indonesian Nuclear Technology Polytechnic Pukyong National University

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Experimental Study Influences Changes In Compression Ratio To Performance Of Single Cylinder Otto Engine Wibawa Endra Juwana; Rendy Adhi Rachmanto; Mugi Wiyono; Iwan Istanto
Mekanika: Majalah Ilmiah Mekanika Vol 21, No 2 (2022): MEKANIKA: Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v21i2.59487

Abstract

Increasing the compression ratio is an attempt to increase the efficiency and performance of the engine. The purpose of the study was to analyze the effect of changes in the compression ratio on engine performance. Tests using a single-cylinder Otto engine by comparing the performance of an enlarged compression ratio of 9.7:1 and 10.4:1 with a standard compression ratio of 9.0:1. The result of the research is that the compression ratio of 9.7:1 produces a peak torque of 7.51 Nm at 6000 rpm, a peak power of 5.30 kW at 8000 rpm, and the lowest BSFC is 0.146 kg/kW.h at 6000 rpm. Torque and power increased by 0.09 Nm and 0.28 kW, and BSFC decreased by 0.018 kg/kW.h compared to the standard compression ratio of 9.0:1. Using a compression ratio of 10.4:1 produces a peak torque of 7.69 Nm at 6000 rpm, a peak power of 5.38 kW at 8000 rpm, and the lowest BSFC is 0.116 kg/kW.h at 6000 rpm. Torque and power increased by 0.27 Nm and 0.36 kW, and BSFC decreased by 0.030 kg/kW.h compared to the standard compression ratio of 9.0:1.
Co-Authors Mugi Wiyono Rendy Adhi Rachmanto Wibawa Endra Juwana