Abstract
The authors have outlined the simple theory of the exhaust gas driven turbocharger in association with the diesel engine. After a short statement of early empirically based assessments of the effect of altitude on supercharged engine output the theory is used to derive a method of calculation of engine performance, using a digital computer. A semi-empirical graphical method is then developed which may be used to assess the effect of turbocharger match, altitude, ambient temperature and fuel consumption on a known engine. Experimental evidence of the validity of the method is given.
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