An experimental investigation on passive cooling system comprising phase change material and two-phase closed thermosyphon for telecom shelters in tropical and desert regions

2010 ◽  
Vol 42 (10) ◽  
pp. 1726-1735 ◽  
Author(s):  
A. Shanmuga Sundaram ◽  
R.V. Seeniraj ◽  
R. Velraj
Keyword(s):  
Experimental Investigation ◽  
Phase Change ◽  
Phase Change Material ◽  
Cooling System ◽  
Passive Cooling ◽  
Two Phase ◽  
Desert Regions ◽  
Passive Cooling System ◽  
Change Material

Numerical Thermal Performance Investigation of an Electric Motor Passive Cooling System Employing Phase Change Materials

2021 ◽  
Author(s):  
Ali Deriszadeh ◽  
Filippo de Monte ◽  
Marco Villani
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Electric Motor ◽  
Phase Change Materials ◽  
Cooling System ◽  
Passive Cooling ◽  
Time Step ◽  
Cooling Performance ◽  
Passive Cooling System ◽  
Change Material

Abstract This study investigates the cooling performance of a passive cooling system for electric motor cooling applications. The metal-based phase change materials are used for cooling the motor and preventing its temperature rise. As compared to oil-based phase change materials, these materials have a higher melting point and thermal conductivity. The flow field and transient heat conduction are simulated using the finite volume method. The accuracy of numerical values obtained from the simulation of the phase change materials is validated. The sensitivity of the numerical results to the number of computational elements and time step value is assessed. The main goal of adopting the phase change material based passive cooling system is to maintain the operational motor temperature in the allowed range for applications with high and repetitive peak power demands such as electric vehicles by using phase change materials in cooling channels twisted around the motor. Moreover, this study investigates the effect of the phase change material container arrangement on the cooling performance of the under study cooling system.

scholarly journals Thermal Management System Using Phase Change Material for Lithium-ion Battery

2021 ◽  
Vol 2117 (1) ◽  
pp. 012005
Author(s):  
E Grimonia ◽  
M R C Andhika ◽  
M F N Aulady ◽  
R V C Rubi ◽  
N L Hamidah
Keyword(s):  
Phase Change ◽  
Lithium Ion Battery ◽  
Thermal Management ◽  
Cooling System ◽  
Lithium Ion ◽  
Passive Cooling ◽  
Thermal Management System ◽  
Passive Cooling System ◽  
Change Material ◽  
Cooling Methods

Abstract The lithium-ion battery is promising energy storage that provides proper stability, no memory effect, low self-discharge rate, and high energy density. During its usage, batteries generate heat caused by energy loss due to the transition of chemical energy to electricity and the electron transfer cycle. Consequently, a thermal management system by cooling methods in the battery is needed to control heat. One of the cooling methods is a passive cooling system using a phase change material (PCM). PCM can accommodate a large amount of heat through small dimensions. It is easy to apply and requires no power in the cooling system. This study aims to find the best type of PCM criteria for a Lithium-ion battery cooling system. The research was conducted by simulations using computational fluid dynamics. The variations were using PCM Capric Acid and PCM Hexacosane, with thickness variations of 3 mm, 6 mm, and 9 mm. Hexacosane PCM with 9 mm thickness indicates the best result to reduce heat up to 6.54°K, demonstrating a suitable passive cooling system for Li-ion batteries.

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