Effect of Direct Inj Ection Diesel Engine Convert To Sequential Injection E Ng Engine in Intake Port Gas Flow Pressun.E Profile

Th e one dimension computational model of a sequential inj ection engine. whi ch runs oncompres sed natura l gas (cng) with spark ign ition. is de veloped for this study. to s imulate theperformance of gas flow pressure pro file. under var ious speed cond itions, the computational mode l isused to simul ate and study o f the steady sta te and transient processes of the intake manifold . theseq ue ntial injection cng engine mod el is developed using gt-power software, the size of thismode l engine is dev eloped from the rea l diese l en gine data and was input into the softw are's' library.the sim ulation model e ngine runs with various speeds from 1000 up to 4000 rpm. the simu lat ionres ults of the performan ce with gas flow pressu re. in the intake manifold ar e collected from two datasets; the )'i- post post processing pluts fur press ure performanc e ve rsu s crank angl e. and postprocessing cases rlt for pres sure pe rformance versus engine speed. th e simu lation results or theintake manifold and the performance of the gas flow pre ssure profi le. with vario us engine speed. 1'0 1'the cng seq uent ial injection engine are shown by characters . th e pressure pro file: or the eng ine andthe num erical accura cy of the model is verilied and validated by compa ring the average total of theintake manifold pre ss re, with the measured intake manifold pres sure, of a cng sequent ial inj ectionengine. the simulation resu lts show that the conversion of diesel engine to a cng sequential inje ctionengin e wit h spark ignition will increase the pressu re perfo rmance in the iuta ' c mani fo ld of tile engine.