Experimental Investigation on Performance, Combustion and Emission Characteristics of a Low Heat Rejection Engine using Rapeseed Methyl Ester and Diethyl Ether

Krishnamani, S.; Mohanraj, T.; Kumar, K. Murugumohan

doi:10.17485/ijst/2016/v9i15/87322

Cited by 7 publications

(2 citation statements)

References 12 publications

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“…10 Variation of brake thermal efficiency with engine load power at a limited quantity of fuel supplied thus leading to improved BTE. The test results were in close agreement with outcomes of Krishnamani et al [25]. Figure 11 shows the variation of brake specific fuel consumption (BSFC) with engine load for DF100 and JB20 blend at the normal and coated engine.…”

Section: Brake Thermal Efficiencysupporting

confidence: 85%

“…From the experimental test results, they found considerable enhancement in thermal efficiency with the coated piston than the normal piston at all load operations of the diesel engine with significant reductions in exhaust emissions. Krishnamani et al [25] performed tests on LHR diesel engine powered by rapeseed biodiesel and diethyl ether to improve the performance parameters and reduce the exhaust emissions. They reported that overheated engine components such as inlet valve, piston crown, exhaust valve, cylinder head of diesel engine coated with lanthanum zirconate with the application of plasma spray technique.…”

Section: Introductionmentioning

confidence: 99%

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Analysis on a thermal barrier coated (TBC) piston in a single cylinder diesel engine powered by Jatropha biodiesel–diesel blends

Venu

2019

SN Appl. Sci.

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The objective of the present work is to enhance the performance of a diesel engine using a thermal barrier coated piston operated with Jatropha biodiesel-diesel blends. For thermal barrier coating, Yttria stabilized zirconia (YSZ) is preferred owing to its high heat insulation capabilities in comparison with other insulating materials such as mullite, zirconia, ceramics, magnesium silicate, silicon carbide etc. YSZ is coated via a plasma spray technique at around 200 µm thickness around the piston crown. The test fuel utilized are DF100 (100% diesel fuel), JB20NE (20% Jatropha biodiesel + 80% diesel fuel operated at normal un-coated engine) and JB20CE (20% Jatropha biodiesel + 80% diesel fuel operated at YSZ coated engine). Experimental results revealed that JB20CE has resulted in 10.6% increased brake thermal efficiency and 20.97% lowered brake specific fuel consumption since the YSZ coating acts as a potential insulator in retaining maximum heat inside the combustion chamber, lowering the energy losses followed by improved combustion efficiency, enhanced air-fuel mixture formation and higher performance. Emission wise, JB20CE operation resulted in lowered hydrocarbon and carbon monoxide emissions by about 41.67% and 33.33% due to improved fuel oxidation and effective combustion provided by YSZ insulation. Keywords Thermal barrier • Yttria stabilized zirconia • Biodiesel • Engine performance • Combustion • Emissions Abbreviations TBC Thermal barrier coated YSZ Yttria stabilized zirconia DF100 100% diesel fuel JB20 20% Jatropha biodiesel + 80% diesel fuel JB20NE 20% Jatropha biodiesel + 80% diesel fuel operated at normal un-coated engine JB20CE 20% Jatropha biodiesel + 80% diesel fuel operated at YSZ coated engine BTE Brake thermal efficiency BSFC Brake specific fuel consumption

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Section: Brake Thermal Efficiencysupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%