2019
DOI: 10.3390/en12071265
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Analysis and Optimization of Coupled Thermal Management Systems Used in Vehicles

Abstract: About 2/3 of the combustion energy of internal combustion engine (ICE) is lost through the exhaust and cooling systems during its operation. Besides, automobile accessories like the air conditioning system and the radiator fan will bring additional power consumption. To improve the ICE efficiency, this paper designs some coupled thermal management systems with different structures which include the air conditioning subsystem, the waste heat recovery subsystem, engine and coolant subsystem. CO2 is chosen as the… Show more

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Cited by 15 publications
(8 citation statements)
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“…A ¼ Q t·K (17) In this equation, K represents the total average heat transfer coefficient for each heat exchanger and t is an average logarithmic temperature difference between the two sides of the heat exchanger. Working fluid flows in the tube side because the pressure of CO 2 is higher than the exhaust, cooling water and jacket water in the condenser, preheater and gas heater.…”
Section: Miniaturization Analysismentioning
confidence: 99%
See 1 more Smart Citation
“…A ¼ Q t·K (17) In this equation, K represents the total average heat transfer coefficient for each heat exchanger and t is an average logarithmic temperature difference between the two sides of the heat exchanger. Working fluid flows in the tube side because the pressure of CO 2 is higher than the exhaust, cooling water and jacket water in the condenser, preheater and gas heater.…”
Section: Miniaturization Analysismentioning
confidence: 99%
“…They noted that CO 2 transcritical system has significant potential to be made compactly, mainly due to the special thermophysical properties of supercritical CO 2. Besides, CO 2 is widely applied in the field of solar thermal, geothermal and vehicle air conditioning device, because it is non‐flammable, environmentally‐friendly and available. However, there are three challenges for ORC to be applied in engine.…”
Section: Introductionmentioning
confidence: 99%
“…Integrating the battery thermal management system with the crew cabin air conditioning system can effectively improve these performances. 8 The thermal management system of electric vehicles needs to consider not only the heat dissipation of the power battery pack, but also the coupling effect with the cabin air conditioning. 9,10 Fan et al 11 and Chen et al 12 optimized the air-cooled system, however, the effect of this system does not easily meet the requirements of long mileage and heat dissipation in complex conditions.…”
Section: Introductionmentioning
confidence: 99%
“…A study in 2018 studies the effect of vehicle gap changes on fuel economy and emission performance which indicate that in designing the control strategy for the ACC system can improve the stability and fuel economy [12]. Equally important experiment in 2019, coupled thermal management systems are designed which resulting the improvement of ICE fuel economy by 1.2% [13][14]. Presently, a study on the effects of butanol-gasoline blends on SI engine performance, contribute to lower CO,HC and CO 2 emission but with exception of NO x emission which much worse than that of pure gasoline [14].…”
Section: Introductionmentioning
confidence: 99%
“…Equally important experiment in 2019, coupled thermal management systems are designed which resulting the improvement of ICE fuel economy by 1.2% [13][14]. Presently, a study on the effects of butanol-gasoline blends on SI engine performance, contribute to lower CO,HC and CO 2 emission but with exception of NO x emission which much worse than that of pure gasoline [14]. Optimization of both fuel economy and performance required much time for research.…”
Section: Introductionmentioning
confidence: 99%