Increase in the thermodynamic efficiency of the working process of spark-ignited engines on natural gas with the addition of hydrogen

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Smolenskaya, Natalia Mikhailovna^1 ; Smolenskii, Vladimirovich Victor^1 ; Korneev, Nicholas Vladimirovich^2

Togliatti State University, Belorusskaya st. 14, Togliatti, Russia^1

Volga Region State University of Service, Gagarin st. 4, Togliatti, Russia^2

关键词: Angle of rotation;    Combustion pro-cess;    Compressed natural gasses (CNG);    Effect of hydrogen;    Internal energies;    Single cylinders;    Spark-ignited engines;    Thermodynamic efficiency;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/5/052009/pdf
DOI  :  10.1088/1755-1315/121/5/052009

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The work is devoted to the substantiation and practical implementation of a new approach for estimating the change in internal energy by pressure and volume. The pressure is measured with a calibrated sensor. The change in volume inside the cylinder is determined by changing the position of the piston. The position of the piston is precisely determined by the angle of rotation of the crankshaft. On the basis of the proposed approach, the thermodynamic efficiency of the working process of spark ignition engines on natural gas with the addition of hydrogen was estimated. Experimental studies were carried out on a single-cylinder unit UIT-85. Their analysis showed an increase in the thermodynamic efficiency of the working process with the addition of hydrogen in a compressed natural gas (CNG).The results obtained make it possible to determine the characteristic of heat release from the analysis of experimental data. The effect of hydrogen addition on the CNG combustion process is estimated.