Mathematical Modelling of Working Processes in the Pneumatic Engine of the Car Kharkov National Auto and Highway Univ

Format:

Book

Conference/Event

Author/Creator:

Leontiev PhD, Dmitry Nikolaevich, author.

Contributor:

Hlushkova, Diana

Korohodskyi, Volodymyr

Nikitchenko, Igor

Teslenko, Eduard

Voronkov, Oleksandr

Conference Name:

SAE Powertrains, Fuels & Lubricants Meeting (2020-09-22 : Krakow, Poland)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2020

Summary:

The article presents studies of the working process of the pneumatic engine, that can be installed on small vehicles as main or auxiliary power generating system. The aim is to assess the possibility of converting an internal combustion engine into a pneumatic engine capable of moving a vehicle with a small mass in urban settings with dense traffic flows using mathematical modelling. The behaviour in the working processes of the engine under study has been performed by the computational method and verified experimentally at the installation created in the laboratory of the ICE department in Kharkiv National Automobile and Highway University. The computational method in question differs from the existing ones because it is based on a dynamic model of an internal combustion engine. The prototype of the developed engine was the V-shaped engine 92/92 with a volume of 1.3l. The engine was converted into a pneumatic one by replacing the cylinder head, crankshaft, and changing the operating mode of the sleeve-valve air distribution mechanism (only 2 strokes were used instead of 4). The developed pneumatic engine was mounted on the stand for determining its power, developed torque, compressed air consumption, pressure in its cylinders and the temperature of heating the engine. The inlet pressure ranged from 6 to 1.1MPa. The results of testing the pneumatic engine showed that when using a sleeve-valve air distributor without heating, it could reach a rate power of Nе=6.22kW with a specific flow rate of compressed air gе=91.45kg/(kW·h). Acomparison of the calculated Р-V diagram with the diagram obtained experimentally with corresponding parameters of pressure and temperature at the inlet to the sleeve valve has been performed. The difference in the results of theoretical and experimental studies is less than 5%. Based on the studies performed, indicator, effective energy and economic values of working processes of the created pneumatic engine have been confirmed

Notes:

Vendor supplied data

Publisher Number:

2020-01-2222

Access Restriction:

Restricted for use by site license