scholarly journals Thermal diode based on a multilayer structure of phase change materials

2021 ◽  
Vol 2116 (1) ◽  
pp. 012115
Author(s):  
T Swoboda ◽  
K Klinar ◽  
A Kitanovski ◽  
M Muñoz Rojo
Keyword(s):  
Phase Change ◽  
Thermal Management ◽  
Multilayer Structure ◽  
Phase Change Materials ◽  
Rectification Ratio ◽  
Optimum Conditions ◽  
Space Applications ◽  
Thermal Rectification ◽  
Management Capability ◽  
The Impact

Abstract Thermal diodes are devices that allow heat to flow preferentially in one direction. This unique thermal management capability has attracted attention in various applications, like electronics, sensors, energy conversion or space applications, among others. Despite their interest, the development of efficient thermal diodes remains still a challenge. In this paper, we report a scalable and adjustable thermal diode based on a multilayer structure that consists of a combination of phase change and phase invariant materials. We applied a parametric sweep in order to find the optimum conditions to maximize the thermal rectification ratio. Our simulations predicted a maximum thermal rectification ratio of ~20%. To evaluate the impact of these devices in real applications, we theoretically analysed the performance of a magnetocaloric refrigerating device that integrates this thermal diode. The results showed a 0.18 K temperature span between the heat source and the heat sink at an operating frequency of 25 Hz.

On the Design of Phase Change Materials based thermal management systems for electronics cooling

2021 ◽  
pp. 117276
Author(s):  
Giulia Righetti ◽  
Claudio Zilio ◽  
Luca Doretti ◽  
Giovanni A. Longo ◽  
Simone Mancin
Keyword(s):  
Phase Change ◽  
Thermal Management ◽  
Phase Change Materials ◽  
Electronics Cooling ◽  
Management Systems

scholarly journals A hybrid thermal management system for high power lithium-ion capacitors combining heat pipe with phase change materials

Heliyon ◽  
2021 ◽  
pp. e07773
Author(s):  
Danial Karimi ◽  
Md Sazzad Hosen ◽  
Hamidreza Behi ◽  
Sahar Khaleghi ◽  
Mohsen Akbarzadeh ◽  
...  
Keyword(s):  
Phase Change ◽  
Heat Pipe ◽  
Thermal Management ◽  
High Power ◽  
Management System ◽  
Phase Change Materials ◽  
Lithium Ion ◽  
Thermal Management System

scholarly journals Thermal management investigation for lithium-ion battery module with different phase change materials

RSC Advances ◽  
2017 ◽  
Vol 7 (68) ◽  
pp. 42909-42918 ◽  
Author(s):  
Ziyuan Wang ◽  
Xinxi Li ◽  
Guoqing Zhang ◽  
Youfu Lv ◽  
Cong Wang ◽  
...  
Keyword(s):  
Service Life ◽  
Phase Change ◽  
Lithium Ion Battery ◽  
Thermal Management ◽  
Thermal Cycle ◽  
Phase Change Materials ◽  
Lithium Ion ◽  
Battery Module

In battery thermal cycle tests PCM 3 prolonged the service life of PCM because the epoxy can effectively prevent leakage of paraffin during phasing change.

scholarly journals Thermo-physical characteristics of building integrated phase change materials (PCM) and their applicability to energy efficient homes

2021 ◽  
Author(s):  
Omar Siddiqui
Keyword(s):  
Compressive Strength ◽  
Phase Change ◽  
Phase Change Materials ◽  
Energy Savings ◽  
Physical Characteristics ◽  
Comfort Level ◽  
Thermal Mass ◽  
Lower Phase ◽  
Physical Test ◽  
The Impact

The applicability of utilizing a variety of thermal mass including phase change materials with commonly used building materials is investigated through the use of simulations and physical testing. The thermal performance and occupant comfort potential of a novel solid-solid phase change material, known as Dal HSM, is compared and contrasted to commonly available forms of thermal mass. Detailed experimentation is conducted to successfully integrate Dal HSM with gypsum and concrete. The measurement of physical characteristics such as compressive strength and modulus of rupture is conducted to ensure that the PCM-composite compound retains the structural integrity to be utilized in a typical building. The use of thermal mass in the Toronto Net Zero house was found to contribute to energy savings of 10-15% when different types of thermal mass were used. The comfort level of the indoor occupants was also found to increase. The performance of Dal HSM was found to be comparable to a commercially available PCM known as Micronal in the heating mode. The cooling mode revealed that Dal HSM provided slightly lower energy savings when compared to Micronal due to a lower phase transition temperature and latent heat. The performance of physical test revealed a decrease in the compressive strength as the concentration of Dal HSM was increased in the PCM-gypsum specimens. Tests were also performed to analyze the impact of increasing the PCM concentration on the flexural strength of PCM-gypsum composite.

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