THEORETICAL AND EXPERIMENTAL STUDY OF INLET MANIFOLD PRESSURE PROFILES USING COMPENSATED TRANSDUCERS
Abstract
Computer simulation and experimental findings on single cylinder four-stroke cycle engine were done with a view of getting more realistic inlet manifold pressures. Since there is a direct relationship between the inlet pressure profiles and the volumetric efficiency of the engine, then there is a possibility of utilizing the knowledge of these profiles to enhance better engine air flow characteristics and hence improvement of engine performance.
The simulation program is based on hometropic process with constant specific heats where the results were validated using experimental findings of the engine with varying engine speeds.
Experimental results are obtained by measuring manifold pressures close to the engine inlet valve using a set of pressure transducers whose response characteristics are determined experimentally in advance. The knowledge of the response characteristics is essential as it enables a compensation circuit to be constructed to eliminate the amplitude attenuation and phase lag of the output signal.
The results show that it is possible to use cheap compensated pressure transducer to achieve high accuracy of pressure measurements.
Recommended Citation
Mtui, P. (1992). THEORETICAL AND EXPERIMENTAL STUDY OF INLET MANIFOLD PRESSURE PROFILES USING COMPENSATED TRANSDUCERS. Tanzania Journal of Engineering and Technology (TJET), 16(1), 12-25. https://doi.org/https://doi.org/10.52339/tjet.v16i1.136
Publisher Name
University of Dar es Salaam