Effective PCM, insulation, natural and/or night ventilation techniques to enhance the thermal performance of buildings located in various climates – A review

Arumugam, Pappu; Velraj, R.; Vellaichamy, Pandiyarajan

doi:10.1016/j.enbuild.2022.111840

Cited by 103 publications

(18 citation statements)

References 178 publications

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“…A building with a suitable climate design should be able to prevent heat flow between the external and internal surfaces. Thus, thermal comfort conditions can be provided by reducing the negative effects of temperature fluctuations on the residents [57][58][59][60][61][62][63][64][65][66][67]. Due to the ability of PCMs to adapt to temperature fluctuations and provide the balance in temperature without the need for any mechanical infrastructure, the temperature can be more stable, especially in the internal volumes of the buildings.…”

Section: Using Pcm In Buildingsmentioning

confidence: 99%

PHASE CHANGE MATERIALS: TYPES, PROPERTIES and APPLICATIONS in BUILDINGS

BAYRAKTAR

Köse

2022

Kırklareli Üniversitesi Mühendislik Ve Fen Bilimleri Dergisi

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The need to reduce the use of fossil energy, which is running out and harmful to the environment, in response to the increasing energy demand with rapid urbanization, population growth and developing technologies reveals the necessity of research and application of technologies using renewable energy. Phase-change materials (PCM) are one of the most suitable methods for the efficient use of thermal energy originating from clean and sustainable energy sources. PCMs play important roles in a more energy-efficient world. The development of PCMs is one of the most challenging areas of study for more efficient thermal energy storage (TES) systems. This paper first explains the concept of PCMs and then describes the properties of these materials. After mentioned studies for improving the properties of PCMs, then PCM types and advantages-disadvantages are explained. Also, usage areas of PCMs in various sectors are also explained.

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Section: Using Pcm In Buildingsmentioning

confidence: 99%

PHASE CHANGE MATERIALS: TYPES, PROPERTIES and APPLICATIONS in BUILDINGS

BAYRAKTAR

Köse

2022

Kırklareli Üniversitesi Mühendislik Ve Fen Bilimleri Dergisi

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“…However, the practical application of RTPCMs is restricted by the leakage problem during the phase transition process. ,,− Therefore, efforts have been devoted to develop stable PCM forms, such as sol–gel, − microcapsules, − coaxial electrospinning, , and other methods. Among them, coaxial electrospinning has distinct advantages to directly prepare fibers with core–shell structure, − which can effectively encapsulate RTPCMs.…”

Section: Introductionmentioning

confidence: 99%

Reversible Thermochromic Nanofiber Membrane for Energy Storage and Thermoregulation

Zhang

Han

et al. 2023

ACS Appl. Energy Mater.

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In this research, a series of reversible thermochromic nanofibrous membrane-containing phase change materials (RT-NFMPCMs) are fabricated successfully. The microstructure of RT-NFMPCMs with outstanding latent heat storage–release properties is modified and characterized systematically. The cores of RT-NFMPCMs comprise green dye GN-2 as a thermal colorant, bisphenol AF as a color developer, and n-butyl stearate as a cosolvent. The factors influencing the encapsulation process, for instance, shell solution concentration, core solution flow rate, and thermal cyclic stability, are characterized to clarify the effects of various experimental conditions. The surface morphology, core thickness, and core–sheath structure of RT-NFMPCMs are characterized by transmission electron microscopy (TEM) and thermal field emission scanning electronic microscopy (TFE-SEM). The fusion crystallization temperatures and enthalpies of RT-NFMPCMs are determined by differential scanning calorimetry (DSC) under different conditions. The thermal stability of RT-NFMPCMs is well illustrated by the properties of thermogravimetric (TG) measurements. In addition, the absorbance obtained using a spectrophotometer certainly allows visualization of the color change characteristics of RT-NFMPCMs as well. The experimental results demonstrate that a nanofiber membrane with a smooth surface and apparent core–shell structure is prepared successfully. With the increase of the core rate of RT-NFMPCMs, the enthalpy also increases accordingly within a certain range. Moreover, the encapsulation effect of the nanofibrous membrane is obvious, and the energy storage efficiency is 73.8%. The color change phenomenon of the prepared RT-NFMPCMs could be observed when the encapsulated n-butyl stearate undergoes a melting or crystallizing process, indicating that the fabricated RT-NFMPCMs present perfect thermochromic performance. Furthermore, the RT-NFMPCMs exhibit excellent stability because the latent heat is almost unchanged even after 100 heating–cooling cycles. Therefore, the RT-NFMPCMs developed in this study have a certain guiding significance for intelligent thermoregulatory textiles and other thermal regulation fields.

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“…32 Zheng et al 33 also focused on the thermal comfort behavior of PCMs in temporary buildings under different climatic zones. Arumugam et al 34 have investigated the effect of passive techniques such as PCM in improving thermal comfort conditions. They concluded that thermal comfort was improved when PCM was installed in the middle and outer layer of buildings located in regions with climate C (temperate), D (continental), and B (dry), respectively, than that of climate A (tropical).…”

Section: Introductionmentioning

confidence: 99%

Influence of phase change materials on thermal comfort, greenhouse gas emissions, and potential indoor air quality issues across different climatic regions: A critical review

Amoatey

Al‐Jabri

Al‐Saadi

2022

Intl J of Energy Research

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There has been growing interest in applying phase change materials (PCMs) in buildings owing to their energy conservation/latent heat storage properties and potential to improve thermal comfort. Various reviews have extensively discussed the thermophysical properties of PCMs and their energy-saving potential in buildings. However, comprehensive reviews on the indoor thermal/ personal comfort behavior of PCMs under different climates remain limited. Therefore, this study aims to present a comprehensive state-of-the-art review of the impact of PCMs on indoor thermal comfort levels in buildings located in cities within different subclimate zones and their personal cooling effect when integrated with clothing (vest). In addition, greenhouse gas (GHG) mitigation potentials and indoor air pollutant emission properties of PCM-enhanced buildings were also reviewed. Hundreds of published articles of PCMs in PubMed and Scopus databases, including a manual search approach, were utilized. The results from this state-of-the-art study have shown that incorporating PCMs in buildings satisfactorily reduced the indoor air temperature of most buildings located in hot climate (BSh, BWh) zones, but very limited studies have been performed in the cold (Dfc, BSk) environments. In general, there was an improvement in the thermal comfort levels of the PCM-enhanced buildings. However, these were mostly assessed using indices such as predicted mean vote, predicted percentage of dissatisfied, comfort index, and total discomfort change, without any comprehensive survey studies (eg, based on

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Effective PCM, insulation, natural and/or night ventilation techniques to enhance the thermal performance of buildings located in various climates – A review

Cited by 103 publications

References 178 publications

PHASE CHANGE MATERIALS: TYPES, PROPERTIES and APPLICATIONS in BUILDINGS

PHASE CHANGE MATERIALS: TYPES, PROPERTIES and APPLICATIONS in BUILDINGS

Reversible Thermochromic Nanofiber Membrane for Energy Storage and Thermoregulation

Influence of phase change materials on thermal comfort, greenhouse gas emissions, and potential indoor air quality issues across different climatic regions: A critical review

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