Parametric Studies Using a Mathematically Simulated Diesel Engine Cycle

A detailed mathematical simulation of a single cylinder, open chamber, naturally aspirated diesel engine was used to predict changes in performance caused by changing various engine design parameters. The computations have in some cases, been used to obtain the parameter values which give optimum performance.

Among the parameters studied are: bore-stroke ratio, valve timing, intake and exhaust valve size, heat release patterns, compression ratio, and atmospheric temperature and pressure. The results are discussed and evaluated in terms of the assumptions used in the calculations.