Showing 1 - 10 of 287
A series of MicroPCMs with gelatin-gum arabic shell, polyurethane shell and styrene-based copolymer shell were fabricated via complex coacervation, interfacial polymerization and suspension polymerization, respectively. Furthermore, a novel MicroPCMs with styrene-divinylbenzene copolymer as...
Persistent link: https://www.econbiz.de/10010809950
Three kinds of macro-encapsulated phase change materials (MacroPCMs) were fabricated, i.e., MacroPCMs with a single core–shell structure, MacroPCMs containing microencapsulated phase change materials (MicroPCMs), and composite macrocapsules of MicroPCMs/expanded graphite prepared by...
Persistent link: https://www.econbiz.de/10010810157
This article describes the development of a CFD 2D model of a new type of ventilated active façade which includes a PCM … tested to model the PCM. To model the radiation, S2S and DO sub-models were tested. RNG k–ε, Standard k–ω and SST k … consideration it was suitable to consider the PCM to be a solid material with variable Cp. The DO model accurately reproduced the …
Persistent link: https://www.econbiz.de/10011040673
Microencapsulated phase change material with a low supercooling degree is one of the increasing important researches as well as industrial application for thermal energy storage. This study develops a novel and low supercooling microencapsulated n-octadecane (MicroC18) with n-octadecyl...
Persistent link: https://www.econbiz.de/10011055553
material (PCM) contents were observed by scanning electron microscopy (SEM). In addition, the core-shell structure and the … effects of different copolymer shell and various PCM contents on thermal stability of MicroPCMs were insignificant. Besides …, SEM micrographs show that all of the MicroPCMs with various PCM contents remained intact after heat treatment at 200 °C …
Persistent link: https://www.econbiz.de/10011055555
sensible heat in water for short term applications. Adding PCM (phase change material) modules at the top of the water tank … would give the system a higher storage density and compensate heat loss in the top layer because of the latent heat of PCM … University of Lleida, Spain. In this work, new PCM-graphite compounds with optimized thermal properties were used, such as 80 …
Persistent link: https://www.econbiz.de/10011046339
a phase change material (PCM) in its outer layer. The research was carried out experimentally by means of a real … that the melting–solidification processes that take place in the PCM led to an increase in the heat absorption during the … chamber was overheated up to 12°C during the daytime. Because of the PCM solidification, 2.5h after the solar radiation faded …
Persistent link: https://www.econbiz.de/10011040832
is solved both for the phase change material (PCM) and heat transfer fluid (HTF). The different contributions to the … results show that the improved system allows to reduce PCM solidification time and increase Second-law efficiency. …
Persistent link: https://www.econbiz.de/10010807671
Thermal applications are drawing increasing attention in the solar energy research field, due to their high performance in energy storage density and energy conversion efficiency. In these applications, solar collectors and thermal energy storage systems are the two core components. This paper...
Persistent link: https://www.econbiz.de/10010688013
Thermal energy storage with phase change materials (PCMs) offers a high thermal storage density with a moderate temperature variation, and has attracted growing attention due to its important role in achieving energy conservation in buildings with thermal comfort. Various methods have been...
Persistent link: https://www.econbiz.de/10010571973