Availability analysis of a turbocharged diesel engine operating under transient load conditions |
| |
| Affiliation: | 2. Shahid Rajaei Teacher Training University, Shabanlou street, Lavisan, Tehran, Iran;1. State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China;2. School of Environment Science and Engineering, Tianjin University, Tianjin 300072, China;1. School of Petroleum Engineering, Southwest Petroleum University, Chengdu, 610500, China;2. CNPC Key Laboratory of Oil Storage and Transportation, Southwest Petroleum University, Chengdu, 610500, China;3. PetroChina Southwest Pipeline Company, Chengdu, China;4. PetroChina Oil &Gas Pipeline Control Center, Beijing, China;1. Laboratory of Thermal Power Systems, Applied Mechanics, Ecole Militaire Polytechnique, BP17 Bordj-el-Bahri, 16046 Algiers, Algeria;2. Department of Industrial Engineering, University of Florence, Via Santa Marta, 3, Florence, Italy;3. Laboratory of Energetics and Conversion Systems, Faculty of Mechanical Engineering, University of Sciences and Technology, Houari Boumediene, BP32 El-Alia, Bab-Ezzouar, 16111 Algiers, Algeria;1. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, PR China;2. Department of Automotive Engineering, Jilin Institute of Chemical Technology, Jilin 132102, PR China |
| |
| Abstract: | A computer analysis is developed for studying the energy and availability performance of a turbocharged diesel engine, operating under transient load conditions. The model incorporates many novel features for the simulation of transient operation, such as detailed analysis of mechanical friction, separate consideration for the processes of each cylinder during a cycle (“multi-cylinder” model) and mathematical modeling of the fuel pump. This model has been validated against experimental data taken from a turbocharged diesel engine, located at the authors’ laboratory and operated under transient conditions. The availability terms for the diesel engine and its subsystems are analyzed, i.e. cylinder for both the open and closed parts of the cycle, inlet and exhaust manifolds, turbocharger and aftercooler. The present analysis reveals, via multiple diagrams, how the availability properties of the diesel engine and its subsystems develop during the evolution of the engine cycles, assessing the importance of each property. In particular the irreversibilities term, which is absent from any analysis based solely on the first-law of thermodynamics, is given in detail as regards transient response as well as the rate and cumulative terms during a cycle, revealing the magnitude of contribution of all the subsystems to the total availability destruction. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
