Analysis of Exhaust Emission, and Performance Characteristics of Single Cylinder CI Engine Fuelled With Palm Oil and CNG

Abstract

ABSTRACT:The aim of present study is to analyze the performance, emission, and combustion characteristics of variable compression ratio (VCR), compression ignition (CI) engine using a suitable biodiesel as a fuel. The biodiesel is selected to conduct this experimental investigation is Compressed Natural Gas and Palm oil as a biodiesel in diesel dual fuel operation is regarded as one of the best ways to control emissions from diesel engines and simultaneously saving petroleum based diesel fuel. In the present work an experimental research was carried out on a laboratory single cylinder, four-stroke variable compression ratio, direct injection diesel engine converted to CNG-Diesel dual fuel mode and then blended with palm oil to analyze the performance and emission characteristics of pure diesel, CNG substitution rates and blended. The results reveal that brake thermal efficiency, brake specific fuel consumption, of dual fuel engine is in the range of 20%-60% at the rated load of 2,4 and 6kg which is Brake thermal efficiency is higher than pure diesel engine for 20% ,40% and 60% CNG substitution rates and slightly less in B20,B40,and B60. Brake specific fuel consumption of dual fuel engine is found better than pure diesel engine at all engine loads and for both CNG substitution rates but by applying biodiesel slightly grater than pure diesel due to its lower calorific value . It is found that there is drastic reduction in CO, CO2,and HC, emissions in the exhaust of dual fuel engine at all loads.

Emission Characteristics of Single Cylinder Compression Ignition (CI) Engine

“…Because of the development of lightweight high-weight stockpiling cylinder. CNG is decreased discharge and performance issues diesel engines that should be possible by utilizing double fuel mode that is diesel-CNG method of running engine [2] [3]. CNG is kept up high power yield, torque and less engines outflows practically identical to the gasoline and diesel.…”

“…Typically, the program is carried out by private non-profit or public organizations, which work closely with local court. [3] Nowadays there are alternatives to criminal prosecution in General and alternatives to judicial stages in criminal proceedings for juvenile in State of Illinois. The state's attorney determines the list of restorative justice programmes; he controls the Register of qualified mediators.…”

“…Among all different vaporous fuels, compacted gaseous petrol (CNG), fluid oil gas (LPG) and hydrogen are generally valuable. Double fuel process is start strategies for rationing diesel and oil, Natural gas is begin in underneath the earth peak at high weights and all the more ordinarily is connected with the oil [3].…”

Pengaruh Laju Aliran Bahan Bakar CNG Pada Performa Mesin Kendaraan Bermotor

“…Selain itu CNG adalah bahan bakar yang ramah lingkungan karena menghasilkan emisi yang rendah. Bila dibandingkan dengan bensin, pemakaian CNG pada kendaraan menghasilkan emisi NOx, CO, dan CO 2 lebih rendah 42%, 70-90%, dan 20-30% [5,6,7,8]. Namun demikian, pemakaian CNG pada kendaraan juga memiliki beberapa kekurangan seperti bobot kendaraan meningkat yang diakibatkan bobot tabung CNG yang cukup berat, akselerasi kendaraan turun, serta daya dan torsi kendaraan lebih rendah bila dibandingkan dengan berbahan bakar bensin [9,10].…”