Search Results - subject:"PCM"

A review of microencapsulation methods of phase change materials (PCMs) as a thermal energy storage (TES) medium

Jamekhorshid, A.; Sadrameli, S.M.; Farid, M. - In: Renewable and Sustainable Energy Reviews 31 (2014) C, pp. 531-542

Microencapsulation of phase change materials (PCMs) is an effective way of enhancing their thermal conductivity and preventing possible interaction with the surrounding and leakage during the melting process, where there is no complete overview of the several methods and techniques for...

Persistent link: https://www.econbiz.de/10010744058

Phase change materials integrated in building walls: A state of the art review

Memon, Shazim Ali - In: Renewable and Sustainable Energy Reviews 31 (2014) C, pp. 870-906

The building sector is the dominant energy consumer with a total 30% share of the overall energy consumption and accounts for one-third of the greenhouse gas emissions around the world. Moreover, in recent years the energy demands for buildings have increased very rapidly due to increase in the...

Persistent link: https://www.econbiz.de/10010744086

Energy and exergy evaluation of a multiple-PCM thermal storage unit for free cooling applications

Mosaffa, A.H.; Garousi Farshi, L.; Infante Ferreira, C.A.; … - In: Renewable Energy 68 (2014) C, pp. 452-458

Latent heat thermal storage (LHTS) is a technology that can help to reduce energy consumption for cooling applications, where the cold is stored in phase change materials (PCMs). Free cooling is a concept developed for air conditioning applications, in which coolness is collected from ambient...

Persistent link: https://www.econbiz.de/10010803999

Improved heat storage rate for an automobile coolant waste heat recovery system using phase-change material in a fin–tube heat exchanger

Shon, Jungwook; Kim, Hyungik; Lee, Kihyung - In: Applied Energy 113 (2014) C, pp. 680-689

In this study, the actual heat transfer coefficient of a phase-change material (PCM) was measured experimentally with … the PCM. The heat transfer rate and time required to store heat was theoretically analyzed in the system where engine … coolant was heated by a fin–tube heat exchanger filled with solid PCM. The amount of heat storage necessary for sufficient …

Persistent link: https://www.econbiz.de/10010718901

Development of thermo-regulating polypropylene fibre containing microencapsulated phase change materials

Iqbal, Kashif; Sun, Danmei - In: Renewable Energy 71 (2014) C, pp. 473-479

Phase change materials are used for thermal management solution in textiles because of the automatic acclimatising properties of textiles. Most of the phase change materials used in textiles is usually found in the range of 28–32 °C of their melting point. This paper reports a type of smart...

Persistent link: https://www.econbiz.de/10011043962

Modeling phase change materials behavior in building applications: Comments on material characterization and model validation

Dutil, Yvan; Rousse, Daniel; Lassue, Stéphane; … - In: Renewable Energy 61 (2014) C, pp. 132-135

of the users. Hopefully, following these efforts, confidence will increase and usage of PCM in buildings should be eased. …

Persistent link: https://www.econbiz.de/10011045250

Steam reforming of methane using double-walled reformer tubes containing high-temperature thermal storage Na2CO3/MgO composites for solar fuel production

Gokon, Nobuyuki; Nakamura, Shohei; Hatamachi, Tsuyoshi; … - In: Energy 68 (2014) C, pp. 773-782

Double-walled reactor tubes containing thermal storage materials based on the molten carbonate salts—100 wt% Na2CO3 molten salt, 90 wt% Na2CO3/10 wt% MgO and 80 wt% Na2CO3/20 wt% MgO composite materials—were studied for the performances of the reactor during the heat charging mode,...

Persistent link: https://www.econbiz.de/10011052954

Preparation and characterization of novel MicroPCMs (microencapsulated phase-change materials) with hybrid shells via the polymerization of two alkoxy silanes

Li, Wenhong; Song, Guolin; Li, Shuhua; Yao, Youwei; … - In: Energy 70 (2014) C, pp. 298-306

MicroPCMs (microencapsulated phase-change materials) were successfully synthesized using MPS (3-(trimethoxysilyl) propyl methacrylate) and VTMS (vinyltrimethoxysilane) as raw materials for hybrid shells, and n-octadecane as core materials. DSC (differential scanning calorimeter) results show...

Persistent link: https://www.econbiz.de/10011053132

Latent heat storage with tubular-encapsulated phase change materials (PCMs)

Zhang, H.L.; Baeyens, J.; Degrève, J.; Cáceres, G.; … - In: Energy 76 (2014) C, pp. 66-72

briefly reviews energy developments and storage techniques, with special emphasis on thermal energy storage and the use of PCM …. It thereafter illustrates first results obtained when encapsulating NaNO3/KNO3-PCM in an AISI 321 tube, as example of a … storage application using a multi-tubular exchanger filled with PCM. To increase the effective thermal conductivity of the PCM …

Persistent link: https://www.econbiz.de/10011054097

Experimental evaluation of a prototype thermoelectric system integrated with PCM (phase change material) for space cooling

Zhao, Dongliang; Tan, Gang - In: Energy 68 (2014) C, pp. 658-666

A prototype thermoelectric system integrated with PCM (phase change material) heat storage unit for space cooling has … been introduced in this work. The PCM heat storage functions as cooling source and carries, partially at least, the cooling … test for efficacy of PCM heat storage unit shows that 35.3% electrical energy has been saved from using PCM heat storage …

Persistent link: https://www.econbiz.de/10011054317