Engine Performance of a Gardener Compression Ignition Engine using Rapeseed Methyl Esther | Zendy

Hamisu Adamu Dandajeh | Zendy; Talib O Ahmadu | Zendy

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Engine Performance of a Gardener Compression Ignition Engine using Rapeseed Methyl Esther

Author(s) -

Hamisu Adamu Dandajeh,

Talib O Ahmadu

Publication year - 2019

Publication title -

fuoye journal of engineering and technology

Language(s) - English

Resource type - Journals

eISSN - 2579-0625

pISSN - 2579-0617

DOI - 10.46792/fuoyejet.v4i2.325

Subject(s) - compression ratio , automotive engineering , thermal efficiency , naturally aspirated engine , integrated engine pressure ratio , materials science , ignition timing , mean effective pressure , combustion , ignition system , engine power , internal combustion engine , combustion chamber , engineering , external combustion engine , power (physics) , exhaust gas recirculation , thermodynamics , chemistry , physics , organic chemistry

This paper presents an experimental investigation on the influence of engine speed on the combustion characteristics of a Gardener compression ignition engine fueled with rapeseed methyl esther (RME). The engine has a maximum power of 14.4 kW and maximum speed of 1500 rpm. The experiment was carried out at speeds of 750 and 1250 rpm under loads of 4, 8, 12, 16 and 18 kg. Variations of cylinder pressure with crank angle degrees and cylinder volume have been examined. It was found that RME demonstrated short ignition delay primarily due to its high cetane number and leaner fuel properties (equivalence ratio (φ) = 0.22 at 4kg). An increase in thermal efficiency but decrease in volumetric efficiency was recorded due to increased brake loads. Variations in fuel mass flow rate, air mass flow rate, exhaust gas temperatures and equivalence ratio with respect to brake mean effective pressure at engine speeds of 750 and 1250 rpm were also demonstrated in this paper. Higher engine speed of 1250 rpm resulted in higher fuel and air mass flow rates, exhaust temperature, brake power and equivalent ratio but lower volumetric efficiency. Keywords— combustion characteristics, engine performance, engine speed, rapeseed methyl Esther ◆

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