Experimental study of the solar water heater integrated with shell and finned tube latent heat storage system

2020 ◽  
Vol 31 ◽  
pp. 101628 ◽  
Author(s):  
S.M. Shalaby ◽  
A.E. Kabeel ◽  
B.M. Moharram ◽  
A.H. Fleafl
Keyword(s):  
Experimental Study ◽  
Latent Heat ◽  
Heat Storage ◽  
Storage System ◽  
Finned Tube ◽  
Solar Water Heater ◽  
Water Heater ◽  
Latent Heat Storage ◽  
Solar Water

scholarly journals Latent Heat Storage in a Two-Phase Thermosyphon Solar Water Heater

2005 ◽  
Vol 128 (1) ◽  
pp. 69-76 ◽  
Author(s):  
Wen-Shing Lee ◽  
Bo-Ren Chen ◽  
Sih-Li Chen
Keyword(s):  
Energy Storage ◽  
Latent Heat ◽  
Heat Storage ◽  
Solar Water Heater ◽  
Water Heater ◽  
Two Phase ◽  
Latent Heat Storage ◽  
Solar Water ◽  
Energy Storage Material ◽  
Optimum Charge

This article experimentally studies the thermal performance of latent heat storage in a two-phase thermosyphon solar water heater, which utilizes the superior heat transfer characteristics of boiling and condensation, and eliminates drawbacks found in the conventional solar water heater. Experimental investigations are first conducted to study the thermal behavior of tricosane (paraffin wax 116), water, and sodium acetate (NaCH3COO∙3H2O) used as energy storage materials. The results indicate that tricosane provides many advantages to be the energy storage material in the latent heat storage system. This study also examines the functions of charge and discharge thermal behaviors in a two-phase thermosyphon solar water heater. The results show that the system gives optimum charge and discharge performance under 40% alcohol fill ratio and with tricosane used as the energy storage material, and displays an optimum charge efficiency of 73% and optimum discharge efficiency of 81%.

Enhancement of latent heat storage in a rectangular cavity: Solar water heater case study

2014 ◽  
Vol 78 ◽  
pp. 904-912 ◽  
Author(s):  
Salwa Bouadila ◽  
Mehdi Fteïti ◽  
Mohamed Mehdi Oueslati ◽  
Amenallah Guizani ◽  
Abdelhamid Farhat
Keyword(s):  
Latent Heat ◽  
Heat Storage ◽  
Rectangular Cavity ◽  
Solar Water Heater ◽  
Water Heater ◽  
Latent Heat Storage ◽  
Solar Water

Preparation and Evaluation of PCMs by Macro Encapsulation for Solar Energy Storage

2021 ◽  
Vol 14 ◽  
Author(s):  
Sunita Routray ◽  
Vishal Agarwal ◽  
Ranjita Swain ◽  
Rudra Narayan Mohapatro
Keyword(s):  
Phase Change ◽  
Large Scale ◽  
Phase Change Materials ◽  
Low Cost ◽  
Storage System ◽  
Solar Water Heater ◽  
Water Heater ◽  
Latent Heat Storage ◽  
Solar Water ◽  
Thermal Fluids

Abstract: Phase Change Materials (PCMs) are used in a latent heat storage system for storing thermal energy. The thermal conductivity of PCMs is enhanced by macro encapsulation for large-scale use. This technique not only provides a self-supporting structure of PCM, also separates the PCM from thermal fluids and enhances the heat transfer rate. The current work involves the study of encapsulation of low-cost inorganic PCMs, such as Sodium nitrate (NaNO3), in a temperature range of 300 – 500˚C. Silicate coating is also applied to PCM capsules. A Solar water heater is then designed using the macro encapsulated PCM. The water heater consists of copper cylindrical pipes, filled with the phase change material. The efficiency of the solar water heater is found to be 22.5%.

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