Thermal performance investigation of a single medium temperature phase change microcapsule used for wind power absorption and heat storage system

2019 ◽  
Vol 44 (1) ◽  
pp. 425-437
Author(s):  
Yun Liu ◽  
Tian‐Tian Chen ◽  
Yong‐Hua Li
2003 ◽  
Vol 33 (1) ◽  
pp. 32-41 ◽  
Author(s):  
Yu-Ming Xing ◽  
Xin Xu ◽  
Xiu-gan Yuan ◽  
Hai-Ting Cui ◽  
Yun-hao Zhang

2018 ◽  
Vol 37 (5) ◽  
pp. 1487-1501 ◽  
Author(s):  
Shukuan Xie ◽  
Hua Wang ◽  
Qi Wu ◽  
Yukang Liu ◽  
Yiheng Zhang ◽  
...  

Author(s):  
Ben Xu ◽  
Peiwen Li ◽  
Cholik Chan

With a large capacity thermal storage system using phase change material (PCM), Concentrated Solar Power (CSP) is a promising technology for high efficiency of solar energy utilization. In a thermal storage system, a dual-media thermal storage tank is typically adopted in industry for the purpose of reducing the use of the heat transfer fluid (HTF). While the dual-media sensible heat storage system has been well studied, a dual-media latent heat storage system (LHSS) still needs more attention and study; particularly, the sizing of volumes of storage tanks considering actual operation conditions is of significance. In this paper, a strategy for LHSS volume sizing is proposed, which is based on computations using an enthalpy-based 1D model. One example of 60MW solar thermal power plant with 35% thermal efficiency is presented. In the study, potassium hydroxide (KOH) is adopted as PCM and Therminol VP-1 is used as HTF. The operational temperatures of the storage system are 390°C and 310°C, respectively for the high and low temperatures. The system is assumed to operate for 100 days with 6 hours charge and 6 hours discharge every day. From the study, the needed height of the thermal storage tank is calculated from using the strategy of tank sizing. The method for tank volume sizing is of significance to engineering application.


1984 ◽  
Vol 106 (1) ◽  
pp. 106-111 ◽  
Author(s):  
D. Dietz

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.


2019 ◽  
Vol 182 ◽  
pp. 508-519 ◽  
Author(s):  
Dong Ho Shin ◽  
Jinsoo Park ◽  
Sung Ho Choi ◽  
Han Seo Ko ◽  
Sarng Woo Karng ◽  
...  

Energies ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 942 ◽  
Author(s):  
Rodrigo Fuentes-Sepúlveda ◽  
Claudio García-Herrera ◽  
Diego A. Vasco ◽  
Carlos Salinas-Lira ◽  
Rubén A. Ananías

The incorporation of phase change materials (PCM) in construction components has become an alternative to reduce the effect of thermal loads in buildings with low thermal inertia. This study put together the effective heat storage capacity of an organic phase change material (O-PCM, octadecane) with the construction and production potential of Pinus radiata in Chile. The wood is impregnated with octadecane by using the Bethell method, showing that it has good retention of the impregnator, and that its size was not modified. Differential scanning calorimetry analysis (DSC) showed that the composite material could achieve fusion enthalpy values from 36 (20.8 MJ/m3) to 122 J/g (108.9 MJ/m3). The transient line heat source method used, indicated that impregnation of Pinus radiata with octadecane increases its specific heat at temperatures from 15 to 20 °C, while its thermal conductivity decreases in the radial and the tangent directions, and increases in the longitudinal direction, showing a decrease in the orthotropic behavior of the wood. The ability of Pinus radiata wood to store latent heat positioned it as a candidate material to be considered in the building industry as a heat storage system.


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