ENGINE HEAT RELEASE VIA SPREAD SHEET

Calculation of rates of heat release from engine fuels provides a usef ul diagnostic tool. As one example, the technique was useful in discov ering that retarding injection timing will reduce the proportion of pr emixed combustion and thereby reduce NOx emissions from a diesel engin e. The technique for calculating heat release rates was proposed more than 30 years ago. Initially a cumbersome technique, it has been simpl ified over the years. In the present work, the author presents equatio ns which allow calculation of heat release rates within a spread sheet .