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Investigation of engine's thermal management based on the characteristics of a map-controlled thermostat

Basir, H ; Sharif University of Technology | 2022

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  1. Type of Document: Article
  2. DOI: 10.1016/j.icheatmasstransfer.2022.106156
  3. Publisher: Elsevier Ltd , 2022
  4. Abstract:
  5. New concepts and strategies are continually being investigated to meet fuel efficiency targets for new generations of internal combustion engines. Thermal management methods can reduce fuel consumption by up to 4%. One approach for thermal management is a map-controlled thermostat. In the current work, this concept is investigated through a benchmarking approach and a methodology for deriving the response time curve for this type of thermostat. To better explore the benchmarking idea, characteristics of map-controlled thermostats for two different engines are identified, analyzed, and compared. Finally, the effects of two separate map-controlled thermostats on the average fuel consumption of engines are investigated for a driving cycle using one-dimensional simulation. It is shown that using a map-controlled thermostat can reduce average vehicle fuel consumption by about 1.7% relative to current vehicles with ordinary wax-type thermostats. © 2022 Elsevier Ltd
  6. Keywords:
  7. CNG engines ; CO2 emissions ; Fuel consumption ; Map controlled thermostat ; Thermal management ; Thermostat response time ; Benchmarking ; Fuels ; Thermostats ; 'current ; CNG engine ; CO 2 emission ; Driving cycle ; Fuel efficiency ; Management IS ; Map controled thermostat ; Thermal ; Time curves ; Temperature control
  8. Source: International Communications in Heat and Mass Transfer ; Volume 135 , 2022 ; 07351933 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0735193322002780