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Friction and indicated power measurement for diesel engine by ( aerial dynamometer | ||
| Al-Rafidain Engineering Journal (AREJ) | ||
| Article 14, Volume 20, Issue 2, 2012, Pages 106-115 PDF (0 K) | ||
| DOI: 10.33899/rengj.2012.47288 | ||
| Author | ||
| Mohammad Sami Ahmad | ||
| Abstract | ||
| Abstract: The conventional methods - used for - measuring brake, friction, and indicated power are based on brake - off dynamometers which use hydraulic or electrical dynamometers . The mentioned above methods use the measured torque to calculate the related power. The present method and instrument are characterized by measuring the amount of pressure opposed by a compressor joined to the engine and a reservoir for a compressed air, thus; the engine speed decelerates with the increasing pressure . For a specified pressure and engine speed, power could be calculated. In addition, friction power in the engine could be estimated by measuring the consumed current and effective voltage on an electrical driving motor when the diesel engine at run – off situation; no fuel supply. The whole present dynamometer had been designed and performed by the researcher as explained. | ||
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