A review on insulation materials for energy conservation in buildings

Aditya, Lisa; Mahlia, T.M.I.; Rismanchi, Behzad; Ng, Hien-Kun; Hasan, Mahamudul; Metselaar, Hendrik Simon Cornelis; Muraza, Oki; Aditiya, H. B.

doi:10.1016/j.rser.2017.02.034

Cited by 555 publications

(255 citation statements)

References 83 publications

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“…It was demonstrated that the integration of a thin PCM layer also delayed the peak heat transfer rate per unit of a wall area approximately from two to three hours. Therefore, this solution was classified by some authors as a new building technology towards dynamic thermal insulation [36,37].…”

Section: Problem Definition and Research Challengementioning

confidence: 99%

Attenuation of Temperature Fluctuations on an External Surface of the Wall by a Phase Change Material-Activated Layer

Heim¹,

Wieprzkowicz²

2017

Applied Sciences

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Periodical changes of temperature on an external surface of building envelope, e.g., thermal stress or excessive heat gains, is often an undesirable phenomenon. The idea proposed and described in the following paper is to stabilize the external surface temperature in a period of significant heat gains by the originally developed, novel composite modified by phase change material (PCM) and applied as an external, thin finishing plaster layer. The PCM composite is made from porous, granulated perlite soaked with paraffin wax (T m = 25 • C) and macro-encapsulated by synthetic resin. The effect of temperature attenuation was estimated for two designated periods of timethe heat gains season (HGS) and the heat losses season (HLS). The attenuation coefficient (AC) was proposed as evaluation parameter of isothermal storage of heat gains determining the reduction of temperature fluctuations. The maximum registered temperature of an external surface for a standard insulation layer was around 20 K higher than for the case modified by PCM. The calculated values of AC were relatively constant during HGS and around two times lower for PCM case. The obtained results confirmed that the proposed modification of an external partition by equipped with additional PCM layer can be effectively used to minimize temperature variations and heat flux in the heat gains season.

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Section: Problem Definition and Research Challengementioning

confidence: 99%

Attenuation of Temperature Fluctuations on an External Surface of the Wall by a Phase Change Material-Activated Layer

Heim¹,

Wieprzkowicz²

2017

Applied Sciences

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“…External Insulation Finishing System (EIFS) is an effective construction method for achieving energy efficiency of buildings by installing insulation board at the outer wall of a building [1][2][3][4][5]. The system is especially applied to high-rise residential buildings nowadays, since concrete in the interior space of building can sustain heat due to the heat storage effect when EIFS is activated [6][7][8][9].…”

Section: Research Background and Purposementioning

confidence: 99%

Simulation Model for Productivity Analysis of External Insulated Precast Concrete Wall System

Baik

Kim

Lee³

et al. 2018

Sustainability

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External Insulation Finishing System (EIFS) is recognized as a suitable method for attaining energy efficiency of buildings. However, conventional EIFS is not actively applied to building construction due to additional time and cost compared with interior insulation method. Therefore, as an alternative that can contribute to active utilization of the external insulation system, this study proposes an External Insulated Precast Concrete (PC) Wall System and its simulation for performing productivity analysis. Results of this study are as follows: (1) an external insulated PC-Wall system is developed of which its insulation performance is above 40% higher than that of the conventional EIFS; (2) performance of the developed system satisfied American Standards for Testing of Materials (ASTM) and American Architectural Manufacturers Association (AAMA) standards; (3) applicability of the developed system is verified via test-bed with construction time lapsing about 40 min for each PC-Wall; and (4) CYCLONE modeling methodology is employed to perform productivity analysis of the developed system compared with conventional EIFS.

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“…Interest in the utilization of low grade heat recovery has increased dramatically in the past decade as it increases environmental issues such as air pollution, global warming, ozone layer depletion and acid rain caused by the acceleration of fossil fuel consumption [1][2][3]. A number of new solutions have been proposed to produce heat-generated plants at low temperature and pressure, and has been proven to be applied in various fields such as solar thermal power, biological waste heat, engine exhaust gases, domestic boilers and so forth [3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Turbine Design for Low Heat Organic Rankine Cycle Power Generation using Renewable Energy Sources

et al. 2018

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Abstract. In recent years, due to its feasibility and reliability, the organic rankine cycle has become a widespread concern and is the subject of research. In the organic rankine cycle system, the radial turbine component is a highly influential component of the high low performance resulting. This paper discusses the design of radial turbines for organic rankine cycle systems. The design stage consists of preliminary design and detail design with parametric methods on the working fluid R22 to determine the geometry and initial estimation of the performance of the radial turbine. After that, a numerical study of the fluid flow region in the radial turbine with R22 as the working fluid was performed. The analysis was performed using computational fluid dynamics of Autodesk Computational Fluid Dynamics Motion software on two models of real gas, k-epsilon and shear stress transport. From the results of this analysis, there is pressure, velocity and temperature distribution along the radial turbine blades and estimated performance under various operating conditions. Comparison between parametric and computational fluid dynamics analysis results show different performance. The difference is due to the computational fluid dynamics analysis already involving the real gas shear stress transport model.

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A review on insulation materials for energy conservation in buildings

Cited by 555 publications

References 83 publications

Attenuation of Temperature Fluctuations on an External Surface of the Wall by a Phase Change Material-Activated Layer

Attenuation of Temperature Fluctuations on an External Surface of the Wall by a Phase Change Material-Activated Layer

Simulation Model for Productivity Analysis of External Insulated Precast Concrete Wall System

Turbine Design for Low Heat Organic Rankine Cycle Power Generation using Renewable Energy Sources

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