Experimental study on composite silica gel supported CaCl2 sorbent for low grade heat storage

Zhu, Dongsheng; Wu, Huijun; Wang, Shengwei

doi:10.1016/j.ijthermalsci.2005.10.009

Cited by 122 publications

(49 citation statements)

References 25 publications

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“…chloride in a composite part of salt mixtures [138], impregnation into a carrier material or mixing with additives [59]. When calcium chloride is confined in pores, its contribution to the energy storage density results from both chemical adsorption of calcium chloride and absorption of calcium chloride solution [24,119,139]. On active carrier materials such as silica gel or zeolite, the physical adsorption of the host matrix contributes also to the energy storage density [139].…”

Section: The Use Of Cacl 2 For Thermochemical Energy Storagementioning

confidence: 99%

“…When calcium chloride is confined in pores, its contribution to the energy storage density results from both chemical adsorption of calcium chloride and absorption of calcium chloride solution [24,119,139]. On active carrier materials such as silica gel or zeolite, the physical adsorption of the host matrix contributes also to the energy storage density [139]. It has been shown that in the latter case, the confined calcium chloride slowed down the dimensionless kinetics [119,139].…”

Section: The Use Of Cacl 2 For Thermochemical Energy Storagementioning

confidence: 99%

“…On active carrier materials such as silica gel or zeolite, the physical adsorption of the host matrix contributes also to the energy storage density [139]. It has been shown that in the latter case, the confined calcium chloride slowed down the dimensionless kinetics [119,139].…”

Section: The Use Of Cacl 2 For Thermochemical Energy Storagementioning

confidence: 99%

“…Several other analytical studies on impregnation of calcium chloride on various host matrices have been done for heat storage purpose: iron silicate [141], silica gel [98,113,139,140,145,146], active carbon [145], bentonite [99,144], MCM-41 [128]. However, upscaling experiments to lab-scale experiments are rare because of less reaction of rate or less cycle stability.…”

Section: The Use Of Cacl 2 For Thermochemical Energy Storagementioning

confidence: 99%

“…The composite (41.7 wt% of calcium chloride) was tested under open process conditions with a water vapour pressure of 20 mbar at an inlet airstream temperature of 25 C. With an outlet airstream temperature of about 35 C, the composite, whose properties were improved, offered a maximum energy storage density of 185 kWh m À3 compared to 240 kWh m À3 for pure calcium chloride under the same conditions. Zhu et al [139] investigated a fixed bed labscale reactor filled with 40 kg of mesoporous silica gel impregnated with calcium chloride in order to achieve high energy storage density in an open process. The composite showed higher adsorption kinetic than pure silica gel and a water uptake of 0.74 g g À1 .…”

Section: The Use Of Cacl 2 For Thermochemical Energy Storagementioning

confidence: 99%

See 4 more Smart Citations

A review on the use of calcium chloride in applied thermal engineering

N’Tsoukpoe¹,

Rammelberg²,

Fopah-Lele³

et al. 2015

Applied Thermal Engineering

106

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Section: The Use Of Cacl 2 For Thermochemical Energy Storagementioning

confidence: 99%

Section: The Use Of Cacl 2 For Thermochemical Energy Storagementioning

confidence: 99%

Section: The Use Of Cacl 2 For Thermochemical Energy Storagementioning

confidence: 99%

Section: The Use Of Cacl 2 For Thermochemical Energy Storagementioning

confidence: 99%

Section: The Use Of Cacl 2 For Thermochemical Energy Storagementioning

confidence: 99%

See 3 more Smart Citations

A review on the use of calcium chloride in applied thermal engineering

N’Tsoukpoe¹,

Rammelberg²,

Fopah-Lele³

et al. 2015

Applied Thermal Engineering

106

View full text Add to dashboard Cite

High Water‐Absorbent and Phase‐Change Heat Dissipation Materials Based on Super‐Aligned Cross‐Stack CNT Films

Liu

Fan

2019

Adv Eng Mater

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Carbon nanotubes (CNTs) with the advantage of high thermal conductivity and light weight can be widely used in thermal management. Meanwhile, heat removal for hot spots has become a major issue in the development of electronics because of the increasing of power density and thermal load. Therefore, more effective heat dissipation approaches are needed. Here, the high water‐absorbent and phase‐change heat dissipation materials based on super‐aligned cross‐stack CNT (CSCNT) films with excellent cooling performance are reported. Pure CSCNT and CaCl2/CSCNT composite show the outstanding water absorption property because of their high specific surface area and porosity. Combined the high natural convection and heat radiation of CSCNTs with heat removal by water evaporation, the heat dissipation coefficient of CaCl2/CSCNT can reach as high as 98 W m−2 K−1 with the help of auxiliary plate. Due to the high absorption rate, the composite can absorb water when electronics are at low power and dissipate heat by water evaporation at high power. Moreover, it is founded that there is a dynamic balance of water absorption and desorption to enhance cooling performance at thermal equilibrium.

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Thermal energy transport within porous polymer materials: Effects of fiber characteristics

Fan

2007

J of Applied Polymer Sci

Self Cite

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A theoretical model integrating the radiative and conductive heat transfer is presented and applied to evaluate the thermal energy transport within porous polymer materials. The model was first validated by comparing the computed thermal energy flux with the experimental measurements of two porous polymer materials made of wool and polyester. The model was then used to predict the effects of the polymer fiber characteristics (viz. fiber fractional volume, fiber emissivity, fiber radius, and fiber thermal conductivity) on the thermal energy flux within the porous polymer materials. It was found that decreasing fiber radius would significantly reduce the total thermal energy flux through the porous polymer materials, whereas increasing fibre emissivity or decreasing the thermal conductivity would cause a just slight reduction of the total thermal energy flux. The fiber fractional volume had a significant influence on the thermal energy flux, and thereby the fiber fractional volume can be optimized in view of improving the thermal insulating performance of the porous polymer materials.

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Experimental study on composite silica gel supported CaCl2 sorbent for low grade heat storage

Cited by 122 publications

References 25 publications

A review on the use of calcium chloride in applied thermal engineering

A review on the use of calcium chloride in applied thermal engineering

High Water‐Absorbent and Phase‐Change Heat Dissipation Materials Based on Super‐Aligned Cross‐Stack CNT Films

Thermal energy transport within porous polymer materials: Effects of fiber characteristics

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