scholarly journals Evaluation of stearic acid/coconut shell charcoal composite phase change thermal energy storage materials for tankless solar water heater

2020 ◽  
Vol 1 (2) ◽  
pp. 187-198 ◽  
Author(s):  
Baoshan Xie ◽  
Chuanchang Li ◽  
Bo Zhang ◽  
Lixin Yang ◽  
Guiyu Xiao ◽  
...  
Keyword(s):  
Energy Storage ◽  
Stearic Acid ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Coconut Shell ◽  
Energy Storage Materials ◽  
Solar Water Heater ◽  
Water Heater ◽  
Solar Water

ANALISA PENGARUH PENAMBAHAN THERMAL ENERGY STORAGE PADA PEMANAS AIR TENAGA SURYA TIPE PLAT DATAR

POROS ◽  
2017 ◽  
Vol 14 (1) ◽  
pp. 37
Author(s):  
Maharuli Maharuli ◽  
I Made Kartika ◽  
Harto Tanujaya
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
Heating Process ◽  
Solar Water Heater ◽  
Solar Thermal Energy ◽  
Water Heater ◽  
Solar Water

Abstract: Solar energy, the renewable energy is only available at certain hour. So it is essential to develop efficient, economical solar thermal energy storage. Thermal energy storage (TES) systems provide several alternatives for efficient energy use and conservation. Phase change materials (PCMs) for TES are materials supplying thermal regulation at particular phase change temperatures by absorbing and emitting the heat of the medium. TES in general and PCMs in particular, absorb energy during the heating process as phase change takes place and release energy to the environment in the phase change range during a reverse cooling process. PCMs possesses the ability of latent thermal energy change their state with a certain temperature. Paraffin is the PCM used in this research. Paraffin is being added to a solar water heater to store thermal energy at daylight and supply the stored energy to the heat pipe when the sundown. From this research, it is found that the solar water heater with paraffin need longer heating time than the conventional solar water heater but it could provide steadier heating performance and warm water even when the sun was down. 

scholarly journals Design and Evaluation of Solar Powered Dryer System with Integrated Thermal Energy Storage

2019 ◽  
Vol 9 (1) ◽  
pp. 2533-2539
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Economic Effects ◽  
Hot Water ◽  
Solar Water Heater ◽  
Water Heater ◽  
Solar Water ◽  
Solar Dryer ◽  
Cloudy Weather

Drying of food products in open air under sun is the most common and easiest way of drying. However, it cannot assure the hygiene of the dried product because of the involvement of wind-borne dust, rain, insects, rodents and birds. This will affects the quality of the product and hence may have contrary economic effects on domestics and global markets. Some of the problems associated with open-air sun drying can be solved through the use of a cabinet type or indirect type solar dryer. The major drawback of all these types of conventional solar dryers is that they cannot be used in cloudy weather or during night time. By incorporating Thermal Energy Storage (TES) we can make use of the dryer throughout the day or at least during late evenings. Water is one of the best sensible TES medium within its operating range. Solar water heater is a device used to collect solar energy and heat up water without any electrical or fossil fuel aid. So the idea of this project is to incorporate solar dryer with solar water heater so that the dryer can be used even at late evenings or in cloudy weather, and also it can be used as water heater for hot water consumption

Stearic acid hybridizing kaolinite as shape-stabilized phase change material for thermal energy storage

2019 ◽  
Vol 183 ◽  
pp. 105358 ◽  
Author(s):  
Jianwen Li ◽  
Xiaochao Zuo ◽  
Xiaoguang Zhao ◽  
Daokui Li ◽  
Huaming Yang
Keyword(s):  
Energy Storage ◽  
Stearic Acid ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Change Material

Characterization of Metal-PCMs for Thermal Energy Storage Applications

2015 ◽  
Vol 830-831 ◽  
pp. 505-508 ◽  
Author(s):  
R. Sudheer ◽  
K. Narayan Prabhu
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
Cooling Curve ◽  
Energy Storage Materials ◽  
Energy Storage Applications ◽  
Temperature Applications

In recent years phase change materials have emerged to be ideal energy storage materials for their higher energy density over sensible heat storing materials. Use of phase change materials (PCM) have been successfully implemented at lower temperature applications with various organic compounds. On the other hand, high temperature applications have been solely dominated by various salts, their eutectics and mixtures as phase change materials. This work discusses the suitability of metals and alloys for thermal energy storage applications as the phase change material. Metals offer superior thermal conductivities with considerable energy density compared to salts. Here, two alloys namely, Sn-0.3Ag-0.7Cu (SAC) solidifying over 212-224°C and ZA8 (Zn-8%Al) solidifying over 378-405°C have been studied. Thermal analysis of PCMs using Computer Aided Cooling Curve Analysis (CA-CCA) and DSC technique were performed to predict the solidification path. In addition to this, Newtonian technique was employed to estimate the latent heat of fusion for these phase change materials. Cooling rate curves and Fraction Solid curves offered a better insight into their ability to receive and discharge heat over the concerned temperature range.

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