Development and testing of PCM doped cool colored coatings to mitigate urban heat island and cool buildings

被引：127

作者：

Karlessi, T. ^{[1
]}

Santamouris, M. ^{[1
]}

Synnefa, A. ^{[1
]}

Assimakopoulos, D. ^{[1
]}

Didaskalopoulos, P. ^{[1
]}

Apostolakis, K. ^{[2
]}

机构：

[1] Natl & Kapodistrian Univ Athens, Grp Bldg Environm Studies, Sect Appl Phys, Dept Phys, Athens 15784, Greece

[2] Colors Chem Ind, Athens, Greece

来源：

BUILDING AND ENVIRONMENT | 2011年 / 46卷 / 03期

关键词：

Urban heat island; Phase change material; Latent heat storage; PCM doped cool colored coatings; THERMAL PERFORMANCE; ENERGY-STORAGE; ATHENS; ARCHITECTURE; TEMPERATURE; CONSUMPTION; SIMULATION; COMFORT; CLIMATE; LOADS;

D O I：

10.1016/j.buildenv.2010.09.003

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this study the performance of organic PCMs used as latent heat storage materials when incorporated in coatings for buildings and urban fabric is investigated Thirty six coatings of six colors containing different quantities of PCMs in different melting points were produced Accordingly infrared reflective (cool) and common coatings with the same binder system and of the same color were prepared for a comparative thermal evaluation The samples were divided in six groups of different color and eight samples each three PCM coatings of different melting temperatures (18 C 24 C 28 C) each one of two different PCM concentrations (20% w/w 30% w/w) an infrared reflective and a common coating of matching color Surface temperature of the samples was recorded at a 24 h basis during August 2008 The results demonstrate that all PCM coatings present lower surface temperatures than infrared reflective and common coatings Analysis of the daily temperature differences showed that peak temperature differences occur between PCM and common or cool coatings from 7 am to 10 am Investigating the temperature gradient revealed that for this time period the values for PCM coatings are lower compared to infrared reflective and common From 10 am to 12 pm temperature gradients for all coatings have similar values Thus coatings containing PCMs store heat in a latent form maintaining constant surface temperatures and discharge with time delay PCM doped cool colored coatings have the potential to enhance thermal inertia and achieve important energy savings in buildings maintaining a thermally comfortable indoor environment while fighting urban heat island when applied on external surfaces (C) 2010 Elsevier Ltd All rights reserved

引用

页码：570 / 576

页数：7

共 40 条

[1]

Akbari H.S., 1992, COOLING OUR COMMUNIT

[2]

[Anonymous], BUILD ENVIRON

[3]

[Anonymous], PHAS CHANG MAT ADV T

[4]

[Anonymous], 1998, PHASE CHANGE WALLBOA

[5] Investigation of the thermal performance of a passive solar test-room with wall latent heat storage [J].

Athienitis, AK ;

Liu, C ;

Hawes, D ;

Banu, D ;

Feldman, D .

BUILDING AND ENVIRONMENT, 1997, 32 (05) :405-410

[6] Use of microencapsulated PCM in concrete walls for energy savings [J].

Cabeza, Luisa F. ;

Castellon, Cecilia ;

Nogues, Miquel ;

Medrano, Marc ;

Leppers, Ron ;

Zubillaga, Oihana .

ENERGY AND BUILDINGS, 2007, 39 (02) :113-119

[7] Modifications in energy demand in urban areas as a result of climate changes: an assessment for the southeast Mediterranean region [J].

Cartalis, C ;

Synodinou, A ;

Proedrou, M ;

Tsangrassoulis, A ;

Santamouris, M .

ENERGY CONVERSION AND MANAGEMENT, 2001, 42 (14) :1647-1656

[8] Passive cooling of outdoor urban spaces. The role of materials [J].

Doulos, L ;

Santamouris, M ;

Livada, I .

SOLAR ENERGY, 2004, 77 (02) :231-249

[9] A review on phase change energy storage: materials and applications [J].

Farid, MM ;

Khudhair, AM ;

Razack, SAK ;

Al-Hallaj, S .

ENERGY CONVERSION AND MANAGEMENT, 2004, 45 (9-10) :1597-1615

[10] On the use of bioclimatic architecture principles in order to improve thermal comfort conditions in outdoor spaces [J].

Gaitani, N. ;

Mihalakakou, G. ;

Santamouris, M. .

BUILDING AND ENVIRONMENT, 2007, 42 (01) :317-324

← 1 2 3 4 →