Fatty acids and related phase change materials for reliable thermal energy storage at moderate temperatures

Kahwaji, Samer; Johnson, Michel B.; Kheirabadi, Ali C.; Groulx, Dominic; White, Mary Anne

doi:10.1016/j.solmat.2017.03.038

Cited by 124 publications

(74 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We also determined the thermal conductivity (κ) of R-CNO using the thermal transport option (TTO) of a Quantum Design Physical Property Measurement System (PPMS, Quantum Design Inc., San Diego, CA, USA) and a custom-designed fluid cell, similar to the cells described elsewhere [13,44]. The PPMs results gave the thermal conductance, K, of a~50 µL sample of R-CNO, and the thermal conductivity, κ, was calculated from K and the known dimensions of the sample [13,44]. The thermal conductivities in both the solid phase, κ s , and the liquid phase, κ l , were measured in the temperature range −10 to 45 • C, i.e., through the solid-liquid phase transition of R-CNO.…”

Section: Experimental Methodsmentioning

confidence: 99%

Edible Oils as Practical Phase Change Materials for Thermal Energy Storage

Kahwaji

White

2019

Applied Sciences

Self Cite

View full text Add to dashboard Cite

Edible oils could provide more accessible alternatives to other phase change materials (PCMs) for consumers who wish to build a thermal energy storage (TES) system with sustainable materials. Edible oils have good shelf life, can be acquired easily from local stores and can be less expensive than other PCMs. In this work, we explore whether margarine, vegetable shortening, and coconut oil are feasible PCMs, by investigations of their thermal properties and thermal stability. We found that margarine and vegetable shortening are not useful for TES due to their low latent heat of fusion, ΔfusH, and poor thermal stability. In contrast, coconut oil remained thermally stable after 200 melt-freeze cycles, and has a large ΔfusH of 105 ± 11 J g−1, a low degree of supercooling and a transition temperature, Tmpt = 24.5 ± 1.5 °C, that makes it very useful for TES in buildings. We also determined coconut oil’s heat capacity and thermal conductivity as functions of temperature and used the measured properties to evaluate the feasibility of coconut oil for thermal buffering and passive heating of a residential-scale greenhouse.

show abstract

Section: Experimental Methodsmentioning

confidence: 99%

Edible Oils as Practical Phase Change Materials for Thermal Energy Storage

Kahwaji

White

2019

Applied Sciences

Self Cite

View full text Add to dashboard Cite

show abstract

“…Despite its abundant availability at a relatively low cost, as well as being human and environmentally friendly [41], the use of co_oil is impeded by its low thermal conductivity. Coconut oil as organic PCM has relatively long lifetime since it is thermally stable like many other organic PCMs [42], and it has no phase separation which commonly occurs in inorganic salt hydrate PCM [43].…”

Section: Introductionmentioning

confidence: 99%

Potential of Thermal Energy Storage Using Coconut Oil for Air Temperature Control

et al. 2018

View full text Add to dashboard Cite

The role of thermal mass in indoor air-cooling during the day is a common area of study, which is particularly relevant for an era characterized by energy crises. Thermal energy storage (TES) technologies for application in rooms and buildings are not well developed. This study focuses on the use of coconut oil (co_oil) as a temperature control agent for room air conditioning systems in tropical countries such as Indonesia, given its capability to store large amounts of heat at temperatures around its melting point. Heat exchange studies between co_oil and the air environment were performed by considering three factors: Temperature difference between co_oil and the air environment, the heat absorption behavior and the release of co_oil, and the mass of co_oil required to have a significant effect. The co_oil cell sizes were formulated as responses to natural day and night air temperature profiles, while the performance of the co_oil mass for decreasing room air temperature was predicted using a thermal chamber.

show abstract

“…Among these, the phase-change material has been widely concerned because of its low costs, high efficiency, and simple and compact structure [8]. Phase-change materials (PCMs) mainly include organic materials [9][10][11] such as paraffin, fatty acids, and inorganic materials [12][13][14], such as crystalline hydrated salts and molten salts. In the BTMS, PW is considered to be one of the best phase-change materials due to its large latent heat capacity, small volume change, slight supercooling, and low costs.…”

Section: Introductionmentioning

confidence: 99%

The Enhanced Performance of Phase-Change Materials via 3D Printing with Prickly Aluminum Honeycomb for Thermal Management of Ternary Lithium Batteries

Cao

Huang

Liu

2020

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

This study introduces a new type of lightweight, shape-stable composite phase-change material (CPCM) to improve the thermal management of ternary lithium batteries. Paraffin wax (PW) was used as a phase-change material, expanded graphite (EG) and high-density polyethylene (HDPE) were used as support materials, carbon fiber (CF) was used as a heat-conductive additive, and a 3D printed aluminum honeycomb with a prickly structure (3D Al-Hc) was added to enhance the mechanical properties and thermal conductivity of the CPCM. The properties of the CPCM were analyzed based on its microstructure, thermal properties, and stress-strain response. The CPCM was applied to a battery cooling module to determine the temperature response of a battery. The results showed that when the CF mass fraction was 4.5 wt%, the degree of supercooling in the PW/EG/CF/HDPE was reduced by 51.5% and 43.3% compared to PW PCM and PW/EG CPCM, respectively. In addition, the thermal conductivity of the PW/EG/CF/HDPE/3D AL-Hc CPCM (5.723 W/(m·K)) was 1.9 times that of the PW/EG. Due to the presence of the 3D AL-Hc, the CPCM has a strain of 1.25 mm at a pressure of 100 KPa. In addition, the CPCM has excellent battery thermal management performance. At a 2.5°C discharge rate, the operating temperature of the battery is kept within the safe temperature range of 50°C.

show abstract

Fatty acids and related phase change materials for reliable thermal energy storage at moderate temperatures

Cited by 124 publications

References 66 publications

Edible Oils as Practical Phase Change Materials for Thermal Energy Storage

Edible Oils as Practical Phase Change Materials for Thermal Energy Storage

Potential of Thermal Energy Storage Using Coconut Oil for Air Temperature Control

The Enhanced Performance of Phase-Change Materials via 3D Printing with Prickly Aluminum Honeycomb for Thermal Management of Ternary Lithium Batteries

Contact Info

Product

Resources

About