Thermal enhancement of concrete by adding bio-based fatty acids as phase change materials
| Autor: | Beyza Beyhan, Kemal Cellat, Caner Güngör, Okan Karahan, Cengiz Dundar, Yeliz Konuklu, Halime Paksoy |
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| Přispěvatelé: | Çukurova Üniversitesi, Paksoy, Halime -- 0000-0003-3200-8595, DUNDAR, CENGIZ -- 0000-0001-9850-0297, Cellat, Kemal -- 0000-0001-6750-480X, [Cellat, Kemal -- Beyhan, Beyza -- Paksoy, Halime] Cukurova Univ, Fac Arts & Sci, Dept Chem, Adana, Turkey -- [Gungor, Caner] Kambeton Co, Adana, Turkey -- [Konuklu, Yeliz] Nigde Univ, Nanotechnol Applicat & Res Ctr NRC, Nigde, Turkey -- [Karahan, Okan] Erciyes Univ, Dept Civil Engn, Kayseri, Turkey -- [Dundar, Cengiz] Cukurova Univ, Dept Civil Engn, TR-01330 Adana, Turkey, 0-Belirlenecek |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
chemistry.chemical_classification
Thermogravimetric analysis Materials science Sustainable energy storage Mechanical Engineering Fatty acid Myristic acid Building and Construction Thermal energy storage Lauric acid Phase change materials chemistry.chemical_compound Differential scanning calorimetry chemistry Chemical engineering Capric Acid Melting point Forensic engineering Electrical and Electronic Engineering Fatty acids Civil and Structural Engineering |
| Popis: | WOS: 000363346100015 An effective way to enhance the thermal storage capacity of buildings is to incorporate phase change materials (PCM) into building materials. Fatty acids are derivatives of materials readily found in nature and labeled as bio-based. In this study, we tested binary mixtures of capric acid (CA), myristic acid (MA), lauric acid (LA), and palmitic acid (PA) as candidate materials for building applications. The melting points of such fatty acid mixtures may further be adjusted, to agree with human comfort zone temperatures by regulating their compositions. We developed two binary mixtures of CA-LA and CA-MA as candidate PCMs for building applications. Thermal storage capacities were measured to be 109.0-155.4 J/g with a differential scanning calorimeter. Thermal cycle tests showed that both PCMs are thermally and chemically stable. Durabilities of PCM mixtures determined by the thermal gravimetric analysis indicated that degradation started at 120 degrees C. The compressive strengths of 1 wt.% PCM added to concrete mixtures were reduced by 12%, yet stayed within the desired limits for C35/45 concretes. However, when PCM contents were increased to 2 wt.%, compression strengths were reduced further, to be within the limits of C30/37 concretes. Both PCMs were suitable for self-compacting concrete mixtures used in buildings. (C) 2015 Elsevier B.V. All rights reserved. TUBITAK [111M557]; COST Action [TU0802]; Cukurova University BAP [FDK-2015-3278]; Kambeton Co. The authors would like to acknowledge the support provided by TUBITAK under the Project No. 111M557, COST Action TU0802, Cukurova University BAP Project No. FDK-2015-3278 and Kambeton Co. |
| Databáze: | OpenAIRE |
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