scholarly journals Exergy analysis in diesel engine with binary blends

2021 ◽  
pp. 273-273
Author(s):  
Senthilkumar Gnanamani ◽  
Pradeep Gaikwad ◽  
Lakshmisankar Subramaniam ◽  
Rameshkumar Chandralingam
Keyword(s):  
Diesel Engine ◽  
Heat Release ◽  
Heat Release Rate ◽  
Release Rate ◽  
Cotton Seed ◽  
Seed Oil ◽  
Exergy Analysis ◽  
Fuel Injection ◽  
Exhaust Heat ◽  
Cotton Seed Oil

Investigation on diesel engine with minimized fuel consumption rate and increased output power is not the meaningful procedure if irreversibility in the thermodynamic system is ignored. This current procedure is aimed to signify the importance of exergy analysis in diesel engine performance on the perspective of Second law of thermodynamics analysis. In this study, diesel-cotton seed oil blends were tested on engine running with direct fuel injection mode of operation. The experiments were conducted with Diesel(D), 5% cotton seed oil-95% diesel(CB5), 10% cotton seed oil-90% diesel(CB10) and 15% cotton seed oil-85% diesel(CB15) for estimation of brake power, energy rate and exergy rate in the fuel and exhaust, heat release rate, exergy destruction, ideal efficiency (I law) and actual (II law) efficiency. The results outcome that an increase in trend was observed in the fuel exergy and thermal exergy loss with engine speed for D, CB5, CB10 and CB15. The loss of exergy, heat release rate, % of exergy and exergy transferred through exhaust gases decreased for CB5, CB10 and CB15 compared to diesel.

scholarly journals Diesel Engine Dynamics Modeling Considering Fuel Injection Period Based on Combustion Heat Release Rate Identification

2013 ◽  
Vol 8 (1) ◽  
pp. 58-73
Author(s):  
Khin Hnin Thu ZAR ◽  
Naoki UCHIYAMA ◽  
Taro UNNO ◽  
Shigenori SANO ◽  
Susumu NODA ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Heat Release ◽  
Heat Release Rate ◽  
Release Rate ◽  
Fuel Injection ◽  
Dynamics Modeling ◽  
Combustion Heat ◽  
Injection Period

Combustion and Emission Characteristics of Dual Fuel Engine for Different Parameters

2021 ◽  
Vol 13 (4) ◽  
Author(s):  
Jianjun Zhu ◽  
Peng Li ◽  
Yufeng Xie ◽  
Xin Geng
Keyword(s):  
Diesel Engine ◽  
Heat Release ◽  
Heat Release Rate ◽  
Compression Ratio ◽  
Release Rate ◽  
Emission Characteristics ◽  
Soot Emission ◽  
Cylinder Pressure ◽  
Fuel Delivery ◽  
Soot Emissions

The effects of compression ratio and fuel delivery advance angle on the combustion and emission characteristics of premixed methanol charge induced ignition by Fischer Tropsch diesel engine were investigated using a CY25TQ diesel engine. In the process of reducing the compression ratio from 16.9 to 15.4, the starting point of combustion is fluctuating, the peak of in-cylinder pressure and the maximum pressure increase rate decrease by 44.5% and 37.7% respectively. The peak instantaneous heat release rate increases by 54.4%. HC and CO emissions are on a rising trend. NOx and soot emissions were greatly decreased. The soot emission has the biggest drop of 50%. Reducing the fuel delivery advance angle will make the peak of in-cylinder pressure and the peak of pressure rise rate increase while the peak of heat release rate decreases. The soot emission is negatively correlated with the fuel delivery advance angle. When the fuel delivery advance angle is 16° CA, the soot emissions increased the most by 130%.

Combustion Characteristics of Single Cylinder Diesel Engine Fueled with Blends of Thumba Biodiesel as an Alternative Fuel

2019 ◽  
Vol 969 ◽  
pp. 451-460
Author(s):  
Manpreet Singh ◽  
Mohd Yunus Sheikh ◽  
Dharmendra Singh ◽  
P. Nageswara Rao
Keyword(s):  
Diesel Engine ◽  
Heat Release ◽  
Heat Release Rate ◽  
Diesel Fuel ◽  
Release Rate ◽  
Mass Fraction ◽  
Pressure Rise ◽  
Cylinder Pressure ◽  
Gas Temperature ◽  
Edible Vegetable Oil

The rapid rise in energy requirement and problem regarding atmosphere pollutions, renewable biofuels are the better alternative choice for the internal combustion engine to partially or totally replace the pollutant petroleum fuel. In the present work, thumba (Citrullus colocynthis) non-edible vegetable oil is used for the production of biodiesel and examine its possibility as diesel engine fuel. Transesterification process is used to produce biodiesel from thumba non-edible vegetable oil. Thumba biodiesel (TBD) is used to prepare five different volume concentration (blends) with neat diesel (D100), such as TBD5, TBD15, TBD25, TBD35 and TBD45 to run a single cylinder diesel engine. The diesel engine's combustion parameter such as in-cylinder pressure, rate of pressure rise, net heat release rate, cumulative heat release, mean gas temperature, and mass fraction burnt analyzed through graphs and compared all thumba biodiesel blends result with neat diesel fuel. The mass fraction burnt start earlier for thumba biodiesel blends compared to diesel fuel because of less ignition delay while peak in-cylinder pressure, maximum rate of pressure rise, maximum net heat release rate, maximum cumulative heat release, and maximum mean gas temperature has found decreased results up to 1.93%, 5.53%, 4.11%, 4.65%, and 1.73% respectively for thumba biodiesel.

A comparative analysis of different methods to improve the performance of cotton seed oil fuelled diesel engine

Fuel ◽  
2012 ◽  
Vol 102 ◽  
pp. 372-378 ◽  
Author(s):  
M. Leenus Jesu Martin ◽  
V. Edwin Geo ◽  
D. Kingsly Jeba Singh ◽  
B. Nagalingam
Keyword(s):  
Comparative Analysis ◽  
Diesel Engine ◽  
Cotton Seed ◽  
Seed Oil ◽  
Cotton Seed Oil
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