Improving Engine Pre-Start And After-Start Heating by Using the Combined Heating System

Paper #:
  • 2016-01-8071

Published:
  • 2016-09-27
DOI:
  • 10.4271/2016-01-8071
Pages:
16
Abstract:
The article discusses the use of the combined heating system with phase-transitional thermal accumulator. The peculiarity of the presented system is that it uses thermal energy of exhaust gas, coolant and motor oil, and emissions of the internal combustion engine during its operation to accumulate the thermal energy. The results of experimental studies of the combined heating system are shown. A system and methods for pre-start and after-start heating of the vehicular engine in the investigated system are developed. The structure of the "combined heating” system to study the impact of its structural and adjustment parameters on the performance of thermal development of the vehicular engine is described. The use of the combined heating system within phase-transitional thermal accumulators is compared with the use of standard systems for a truck engine 8FS 9.2 / 8. It reduces the time of coolant and motor oil thermal development by 22.9-57.5% and 25-57% accordingly. With the engine being shut off, it also increases their long-term storage with their optimal temperatures to 9-92 times and 6.2-61 times accordingly. The peculiarities of forming and using the system under study depend on operational needs, climatic conditions and the category of the vehicle.
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