1326 KB36 KB199920252014Cai, MaolinFan, ZichuanShi, YanYu, Qihuištevilka:6letnik:60str. 395-406, SI 78ISSN:0039-2480COBISSID:13510683URN:URN:NBN:SI:doc-4MYATHJQenZveza strojnih inženirjev in tehnikov Slovenije et al.Strojniški vestnikbatni motorji na stisnjen zrakenergijski izkoristekgenetski algoritemoptimizacijaOptimization of the energy efficiency of a piston compressed air engine|To improve the energy efficiency and output power of the piston compressed air engine (CAE), a mathematical model of its working process was set up. With the use of the MATLAB/Simulink software for simulation, the influences of the bore-to-stroke ratio, intake pressure and valve lift on the performance of the engine were obtained for the analysis of the energy efficiency and the output power. Moreover, to optimize the energy efficiency of the engine with the given output power, an improved NSGA-II was introduced, and a series of optimization intake pressures and valve lifts was obtained. When the output power value is about 2 kW, the intake pressure and the intake valve lift can be set to 1.99 MPa and 9.99 mm, the energy efficiency is highest: 31.17%. Finally, that the improved NSGA-II is superior to NSGA-II in proximity and diversity has been proved. This research can be referred in the optimization of the piston CAE and provides a method for the energy efficiency optimization studyKurjenje fosilnih goriv je eden glavnih vzrokov resnih okoljskih problemov, kot so učinek tople grede, tanjšanje ozonske plasti in smog. V članku je predstavljena nova vrsta pogonske opreme, ki bi lahko pomagala pri odpravljanju teh problemov. Batni motor (CAE) poganja stisnjen zrak, ki ga je mogoče pridobiti z uporabo obnovljivih virov, kot so sončna svetloba, veter in bibavica. Batni motorji CAE so okolju prijazna oprema in bi jih lahko vgrajevali v vozila prihodnosti, njihov razvoj pa je začasno zavrla nizka energetska učinkovitostTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Fakulteta za strojništvo