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A Correction Factor Investigation of a Turbocharged Diesel Engine
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English
Abstract
The increased use of turbocharged diesel engines for automotive applications has accentuated the need for accurate power correction functions. The study's purpose was to evaluate the effect of dry ambient intake air pressure, ambient intake air temperature, engine speed, and humidity upon the performance of a turbocharged diesel engine. Each effect is examined individually and weighted in a final relationship for standardized horsepower. Power correction formulas, in a form readily comparable to typical correction functions, are derived from the results.
Testing was conducted through the use of various special test procedures, calibrations, and test equipment. With computer aid, test evaluation was conducted by utilizing various analytical and graphical methods. An accuracy comparison between actual and calculated values of power correction is presented.
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Authors
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Citation
Bryzik, W., "A Correction Factor Investigation of a Turbocharged Diesel Engine," SAE Technical Paper 710821, 1971, https://doi.org/10.4271/710821.Also In
References
- Dicksee C.B. “Influence of Intake Pressure and Temperature Upon the Air Consumption of High-Speed Four-Stroke Compression-Ignition Engines, with Particular Reference to Supercharged Engines.” Proceedings, Inst. Mech. Engrs. 178 19 1963-1964 501 514
- Whitehouse N. D. “Estimating the Effects of Altitude, Ambient Temperature and Turbocharger Match on Engine Performance.” Proceedings, Inst. Mech. Engrs. 178 19 1963-1964 483 500
- Yanda L. M. “Correction of Turbocharged Engine Performance to Standard Conditions and Prediction of Non-Standard Day Performance.” SAE Transactions 78 1969 paper 690309
- SAE Standard, Engine Test Code-Spark Ignition and Diesel-SAE J816b, SAE Handbook
- “Relative Humidity Determination by the Wet-Dry Psychrometer Method.” Tech. Bul. No. 1 Hygrodynamics, Inc. Washington, D. C.
- McCulla W. J. Blackwood A. K. “Correcting Horsepower Output, A Realistic Method for Diesel Engines.” SAE Transactions 69 1961 620 626