Experimental investigation of the novel melting point modified Phase–Change material for heat pump latent heat thermal energy storage application

Jin, Xin; Wu, Fengping; Xu, Tao; Huang, Gongsheng; Wu, Huijun; Zhou, Xiaoqing; Wang, Dengjia; Liu, Yanfeng; Lai, Alvin C.K.

doi:10.1016/j.energy.2020.119191

Cited by 28 publications

(3 citation statements)

References 43 publications

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“…The heat energy then raised the temperature of water inside the beaker until it reached the maximum potential value based upon the amount of heat that was conveyed (Jin et al, 2021). The heat capacity of combustion experimentation was performed by using 50 ml and 100 ml of water.…”

Section: Heat Of Combustion Q-value Comparison Of 50ml and 100 ML Water Heating From Peat Pellets With Additivesmentioning

confidence: 99%

The Function of Organic Additives in Enhancing the Q-values for Peat Pellet Biofuel

Hashim¹,

Embong²

2021

ASMScJ

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In Malaysia, peat make up for around 7.5 % of the entire land area. The positive effect of the vast wet organic compounds accumulates over a long time has stored high content of soil’s carbon which are highly useful as fuel and biomass energy generation. Thus, this study gives an outline of peat pellet as potential biofuel energy. The peat pellets were soaked into several kinds of flammable additives such as petrol, kerosene and diesel. The percentages of 69.41 % of carbon, 28.73% of oxygen and 0.97% of silicon were obtained using Energy Dispersive X-ray (EDX). The Fourier-Transformed Infrared (FTIR)- Attenuated Total Reflectance (ATR) Spectroscopy was used to identify the sample. From the spectra, it reveals that most of the additives contribute mainly functional groups with hydroxyl, alcohol and phenol groups were found leading to higher boiling and melting points. The heat combustion properties of peat pellets were evaluated using a calorimeter technique by boiling off 50 ml and 100 ml of water. The pellet with diesel has the highest Q-values and combustion rate due to larger number of carbons in rigid molecular structure. The high amount of unique chemical compound found naturally in diesel known as cetane, ignites effortlessly when heated gives diesel additional advantages in shorter ignition delays as well as longer duration of combustion.

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Section: Heat Of Combustion Q-value Comparison Of 50ml and 100 ML Water Heating From Peat Pellets With Additivesmentioning

confidence: 99%

The Function of Organic Additives in Enhancing the Q-values for Peat Pellet Biofuel

Hashim¹,

Embong²

2021

ASMScJ

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“…Maintaining the maximum temperature of the electronic devices under 50 °C can provide the end-users with thermal comfort. 39 Although some investigations have encapsulated the solid−liquid PCMs in porous networks to manage thermal energy dissipated by electronic devices, their synthesis methods are always costly and complex. The obtained PCCs always cannot withstand external pressure, and they are always too thick for electronic devices.…”

Section: ■ Introductionmentioning

confidence: 99%

“…In the practical application of electronic devices, user experience is of great significance and it is very relevant to market value. Maintaining the maximum temperature of the electronic devices under 50 °C can provide the end-users with thermal comfort . Although some investigations have encapsulated the solid–liquid PCMs in porous networks to manage thermal energy dissipated by electronic devices, their synthesis methods are always costly and complex.…”

Section: Introductionmentioning

confidence: 99%

Flexible and Leakage-Proof Sodium Alginate-Based Phase Change Composite Film for Thermal-Comfortable Application of Electronic Devices

Zhu

et al. 2023

ACS Sustainable Chem. Eng.

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Solid–liquid phase change materials (PCMs) with large latent heat can efficiently weaken thermal peaks, thus alleviating the thermal discomfort of human beings caused by electronic devices. However, the leakage during the melting process and the low thermal conductivity severely limit their application in electronic thermal management. In this study, a flexible and leakage-proof sodium alginate-based phase change composite film (PCCF) was first fabricated via a facile and green synthesis method with the assistance of stainless steel meshes, and its synthetic size could be easily regulated via a mold. Multiwall carbon nanotubes (MWCNTs) were used to enhance the thermal conductivity of the PCCF. Through the leakage prevention tests, it can be found that the PCCF-0.7 (the mass fraction of polyethylene glycol (PEG) was 70%) exhibited leakage proof under an external force. The phase change enthalpy of the PCCF-0.7 reached 100.05 J/g, and the enthalpy retention rate reached 76%. The radial thermal conductivity of PCCF-0.7 (contains 8 wt % MWCNTs) was 3.52 W/(m·K), 3810% higher than that of pure PEG. The heat transfer experiment demonstrated that the PCCF could efficiently store thermal energy; the maximum temperature of the analog smartphone could be reduced by 5.3 °C. Hence, the prepared PCCF is suitable for providing thermal comfort to electronic devices, and it is sustainable and eco-friendly.

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Preparation and Thermal Properties of a Novel Modified Ammonium Alum/Expanded Graphite Composite Phase Change Material

et al. 2023

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Experimental investigation of the novel melting point modified Phase–Change material for heat pump latent heat thermal energy storage application

Cited by 28 publications

References 43 publications

The Function of Organic Additives in Enhancing the Q-values for Peat Pellet Biofuel

The Function of Organic Additives in Enhancing the Q-values for Peat Pellet Biofuel

Flexible and Leakage-Proof Sodium Alginate-Based Phase Change Composite Film for Thermal-Comfortable Application of Electronic Devices

Preparation and Thermal Properties of a Novel Modified Ammonium Alum/Expanded Graphite Composite Phase Change Material

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