Similar Search Results

Enhanced performances of macro-encapsulated phase change materials (PCMs) by intensification of the internal effective thermal conductivity

Calvet, Nicolas; Py, Xavier; Olivès, Régis; … - In: Energy 55 (2013) C, pp. 956-964

Performances of spherical macrocapsules (nodules) currently used in latent heat-based thermal energy storage (TES) industrial units have been enhanced by the addition of graphite particles to the phase change material (PCM). Two different graphite types, namely graphite flakes (GF) and expanded...

Persistent link: https://www.econbiz.de/10011054055

Heat transfer characteristics of thermal energy storage of a composite phase change materials: Numerical and experimental investigations

Aadmi, Moussa; Karkri, Mustapha; El Hammouti, Mimoun - In: Energy 72 (2014) C, pp. 381-392

In the present study, phase change materials based on epoxy resin paraffin wax with the melting point 27 °C were used as a new energy storage system. Thermophysical properties and the process of melting of a PCM (phase change material) composite were investigated numerically and...

Persistent link: https://www.econbiz.de/10011054489

New approach for sol–gel synthesis of microencapsulated n-octadecane phase change material with silica wall using sodium silicate precursor

He, Fang; Wang, Xiaodong; Wu, Dezhen - In: Energy 67 (2014) C, pp. 223-233

A new silica encapsulation technique toward n-octadecane PCM (phase change material) was developed through sol–gel synthesis using sodium silicate as a silica precursor. Fourier transform infrared spectra confirm the chemical composition of the synthesized microcapsules, and wide-angle X-ray...

Persistent link: https://www.econbiz.de/10011054998

Performance analysis for passive single slope single basin solar distiller with a floating absorber – An experimental study

El-Bialy, E. - In: Energy 68 (2014) C, pp. 117-124

The availability of potable water per capita is contracting because of the growth of population. Solar distillation method is a promising method for supplying potable water to rural regions. Passive solar distiller is a simple device for the partial solution of the problem of shrinking potable...

Persistent link: https://www.econbiz.de/10011055067

Estimation of geological formation thermal conductivity by using stochastic approximation method based on well-log temperature data

Cheng, Wen-Long; Huang, Yong-Hua; Liu, Na; Ma, Ran - In: Energy 38 (2012) 1, pp. 21-30

Thermal conductivity is a key parameter for evaluating wellbore heat losses which plays an important role in determining the efficiency of steam injection processes. In this study, an unsteady formation heat-transfer model was established and a cost-effective in situ method by using stochastic...

Persistent link: https://www.econbiz.de/10011055373

Preparation of nitrogen-doped graphene/palmitic acid shape stabilized composite phase change material with remarkable thermal properties for thermal energy storage

Mehrali, Mohammad; Tahan Latibari, Sara; Mehrali, Mehdi; … - In: Applied Energy 135 (2014) C, pp. 339-349

Palmitic acid (PA) is one of the main phase change materials (PCMs) for medium temperature thermal energy storage systems. In order to stabilize the shape and enhance the thermal conductivity of PA, the effects of adding nitrogen-doped graphene (NDG) as a carbon nanofiller were examined...

Persistent link: https://www.econbiz.de/10011076333

Thermal transmittance of carbon nanotube networks: Guidelines for novel thermal storage systems and polymeric material of thermal interest

Fasano, Matteo; Bozorg Bigdeli, Masoud; Sereshk, Vaziri; … - In: Renewable and Sustainable Energy Reviews 41 (2015) C, pp. 1028-1036

Among other applications, the study of thermal properties of large networks of carbon nanoparticles may have a critical impact in loss-free, more compact and efficient thermal storage systems, as well as thermally conducting polymeric materials for innovative low-cost heat exchangers. In this...

Persistent link: https://www.econbiz.de/10011077346

Implications of Spatial Variability in Heat Flow for Geothermal Resource Evaluation in Large Foreland Basins: The Case of the Western Canada Sedimentary Basin

Weides, Simon; Majorowicz, Jacek - In: Energies 7 (2014) 4, pp. 2573-2594

Heat flow and geothermal gradient of the sedimentary succession of the Western Canada Sedimentary Basin (WCSB) are … south to high 100 mW/m<sup>2</sup> in the north. As permeable strata are required for a successful geothermal application …. Results of previous regional studies on the geothermal potential of the WCSB are newly evaluated and discussed. In parts of …

Persistent link: https://www.econbiz.de/10011031274

Ideal thermal conductivity of a passive building wall: Determination method and understanding

Zhang, Yu; Zhang, Yinping; Wang, Xin; Chen, Qun - In: Applied Energy 112 (2013) C, pp. 967-974

If buildings can change “clothes” according to seasons like human being, the energy consumption for their space heating or cooling will be saved greatly. For this purpose, the thermophysical properties of building external wall should be self-adjusted according to outdoor temperature. In...

Persistent link: https://www.econbiz.de/10011040385

Thermal property measurement and heat storage analysis of LiNO3/KCl – expanded graphite composite phase change material

Huang, Zhaowen; Gao, Xuenong; Xu, Tao; Fang, Yutang; … - In: Applied Energy 115 (2014) C, pp. 265-271

A LiNO3/KCl-expanded graphite (EG) composite phase change material (PCM) was prepared for solar thermal energy storage application at high temperature (∼200°C). In such composite material, eutectic system LiNO3/KCl is characterized by high phase change latent heat and EG serves as the heat...

Persistent link: https://www.econbiz.de/10011041374