A Novel Active Cooling System for Internal Combustion Engine Using Shape Memory Alloy Based Thermostat

Pollutants in exhaust gases and the high fuel consumption of internal combustion engines remain key issues in the automotive industry despite the emergence of electric vehicles. Engine overheating is a major cause of these problems. Traditionally, engine overheating was solved using electric pumps a...

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Main Authors: Pacifique Turabimana, Jung Woo Sohn, Seung-Bok Choi
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/8/3972
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author Pacifique Turabimana
Jung Woo Sohn
Seung-Bok Choi
author_facet Pacifique Turabimana
Jung Woo Sohn
Seung-Bok Choi
author_sort Pacifique Turabimana
collection DOAJ
description Pollutants in exhaust gases and the high fuel consumption of internal combustion engines remain key issues in the automotive industry despite the emergence of electric vehicles. Engine overheating is a major cause of these problems. Traditionally, engine overheating was solved using electric pumps and cooling fans with electrically operated thermostats. This method can be applied using active cooling systems that are currently available on the market. However, the performance of this method is undermined by its delayed response time to activate the main valve of the thermostat and the dependence of the coolant flow direction control on the engine. This study proposes a novel active engine cooling system incorporating a shape memory alloy-based thermostat. After discussing the operating principles, the governing equations of motion were formulated and analyzed using COMSOL Multiphysics and MATLAB. The results show that the proposed method improved the response time required to change the coolant flow direction and led to a coolant temperature difference of 4.90 °C at 90 °C cooling conditions. This result indicates that the proposed system can be applied to existing internal combustion engines to enhance their performance in terms of reduced pollution and fuel consumption.
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spelling doaj.art-1c77ce188db04258beacb4fd8d4cb5352023-11-17T21:17:14ZengMDPI AGSensors1424-82202023-04-01238397210.3390/s23083972A Novel Active Cooling System for Internal Combustion Engine Using Shape Memory Alloy Based ThermostatPacifique Turabimana0Jung Woo Sohn1Seung-Bok Choi2Department of Aeronautics, Mechanical and Electronic Convergence Engineering, Graduate School, Kumoh National Institute of Technology, Gumi 39177, Republic of KoreaDepartment of Mechanical Design Engineering, Kumoh National Institute of Technology, Daehak-Ro 61, Gumi 39177, Republic of KoreaDepartment of Mechanical Engineering, The State University of New York, Korea (SUNY Korea), Songdo Moonhwa-Ro, Incheon 21985, Republic of KoreaPollutants in exhaust gases and the high fuel consumption of internal combustion engines remain key issues in the automotive industry despite the emergence of electric vehicles. Engine overheating is a major cause of these problems. Traditionally, engine overheating was solved using electric pumps and cooling fans with electrically operated thermostats. This method can be applied using active cooling systems that are currently available on the market. However, the performance of this method is undermined by its delayed response time to activate the main valve of the thermostat and the dependence of the coolant flow direction control on the engine. This study proposes a novel active engine cooling system incorporating a shape memory alloy-based thermostat. After discussing the operating principles, the governing equations of motion were formulated and analyzed using COMSOL Multiphysics and MATLAB. The results show that the proposed method improved the response time required to change the coolant flow direction and led to a coolant temperature difference of 4.90 °C at 90 °C cooling conditions. This result indicates that the proposed system can be applied to existing internal combustion engines to enhance their performance in terms of reduced pollution and fuel consumption.https://www.mdpi.com/1424-8220/23/8/3972shape memory alloyactive cooling systemthermostatinternal combustion engine
spellingShingle Pacifique Turabimana
Jung Woo Sohn
Seung-Bok Choi
A Novel Active Cooling System for Internal Combustion Engine Using Shape Memory Alloy Based Thermostat
Sensors
shape memory alloy
active cooling system
thermostat
internal combustion engine
title A Novel Active Cooling System for Internal Combustion Engine Using Shape Memory Alloy Based Thermostat
title_full A Novel Active Cooling System for Internal Combustion Engine Using Shape Memory Alloy Based Thermostat
title_fullStr A Novel Active Cooling System for Internal Combustion Engine Using Shape Memory Alloy Based Thermostat
title_full_unstemmed A Novel Active Cooling System for Internal Combustion Engine Using Shape Memory Alloy Based Thermostat
title_short A Novel Active Cooling System for Internal Combustion Engine Using Shape Memory Alloy Based Thermostat
title_sort novel active cooling system for internal combustion engine using shape memory alloy based thermostat
topic shape memory alloy
active cooling system
thermostat
internal combustion engine
url https://www.mdpi.com/1424-8220/23/8/3972
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