The microencapsulation of calcium chloride hexahydrate as a phase-change material by using the hybrid coupler of organoalkoxysilanes

2017 ◽  
Vol 135 (6) ◽  
pp. 45821 ◽  
Author(s):  
Jeong Min Yang ◽  
Jeong Soo Kim
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Calcium Chloride ◽  
Chloride Hexahydrate ◽  
Hybrid Coupler ◽  
Change Material

Thermal Performance of a Heat Storage Module Using Calcium Chloride Hexahydrate

1984 ◽  
Vol 106 (1) ◽  
pp. 106-111 ◽  
Author(s):  
D. Dietz
Keyword(s):  
Heat Transfer ◽  
Experimental Data ◽  
Phase Change ◽  
Calcium Chloride ◽  
Thermal Performance ◽  
Heat Storage ◽  
Heat Transfer Area ◽  
Transfer Rates ◽  
Chloride Hexahydrate ◽  
Change Material

The thermal performance of an air-heated/cooled, phase-change, heat stoage module was tested and evaluated. The module (rated at 38.7 kWh) consist of 130 vertically oriented tubes filled with 729 kg (1607 lb) of calcium chloride hexahydrate and enclosed in a rectangular box. Heat transfer rates measured during charging and discharging decreased with time as a result of decreasing effective heat transfer area and increasing thermal resistance of the phase-change material. These two dominant effects are included in a proposed mathematical model that predicted the experimental data.

scholarly journals Effect of the phase change material in a solar receiver on thermal performance of parabolic dish collector

2017 ◽  
Vol 21 (6 Part B) ◽  
pp. 2803-2812 ◽  
Author(s):  
Ramalingam Senthil ◽  
Marimuthu Cheralathan
Keyword(s):  
Heat Transfer ◽  
Phase Change ◽  
Phase Change Material ◽  
Exergy Efficiency ◽  
Heat Transfer Fluid ◽  
Solar Radiation Intensity ◽  
Chloride Hexahydrate ◽  
Parabolic Dish ◽  
Solar Receiver ◽  
Change Material

In this work, the use of phase change material in the circular tank solar receiver is proposed for a 16 m2 Scheffler parabolic dish solar concentrator to improve the heat transfer in the receiver. Magnesium chloride hexahydrate with melting temperature of 117?C is selected as the phase change material in the annular space of the receiver with rectangular fins inside the phase change material. Experimental work is carried out to analyze heat transfer from the receiver to heat transfer fluid with and without phase change material in the inner periphery. Energy and exergy efficiency are determined from the measurements of solar radiation intensity, receiver temperature, surroundings temperature, heat transfer fluid inlet and outlet temperatures, storage tank temperature, and wind speed. The experiments were conducted in SRM University, Chennai, India (latitude: 13? 5? N, longitude: 80?16? E) in April 2014. Use of phase change material in receiver periphery increased energy efficiency by 5.62%, exergy efficiency by 12.8% and decreased time to reach the boiling point of water by 20% when compared with the receiver without phase change material.

Sign in / Sign up

Export Citation Format

Share Document