Thermal performance enhancement of microencapsulated phase change material/geopolymer composites through graphite platelets and nano-additives for building energy storage applications

Download

index.pdf

Date

2023-1

Author

Tolga , Tamer

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

784
views

381
downloads

The demand for sustainable, low-energy buildings with minimized operating costs is increasing. Meeting this ever increasing demand while providing sufficient occupant thermal comfort is a challenge. In the recent years, solutions that try to utilize the thermal energy storage potential of the building envelope are being developed at a rapid pace. Combining the high storage capacity of micro-encapsulated phase change materials (mPCM) with high thermal conductivity waste materials lead to sustainable, low-carbon and low-cost composites. This research is intended to measure and analyze the mechanical, microstructural, and thermophysical properties of different types of mPCM incorporated geopolymer composites for building envelope applications. Several types of locally available waste materials with varying chemical compositions will be prepared with PCMs with melting point of 24℃. Furthermore, nano-SiO2, nano-TiO2, and graphite platelets were added in order to enhance the mechanical and thermal properties of the mPCM/geopolymer composites. The experiment results showed that geopolymer composites with enhanced thermal and sufficient mechanical properties were developed by incorporating nanoparticles and graphite platelets into the geopolymer matrix

Subject Keywords

Microencapsulated phase change materials, Geopolymers, Nanoseed activation, Graphite, Thermal conductivity

URI

https://hdl.handle.net/11511/102490

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Energy consumption of a day-occupied building utilizing phase changing material incorporating gypsum boards Akgül, Çağla; Gürsel Dino, İpek (null; 2018-09-14) In the architecture, engineering and construction industry, there is an urgent need for a shift to low-energy, sustainable buildings to address the environmental concerns, increase occupant comfort demands and lower the operational cost of buildings. In this direction, one of the most effective technologies is using PCM’s (phase change materials) as part of building envelopes. PCMs can increase building performance by increasing the thermal storing capacity of buildings by decreasing the heat transfer betwe...
Energy performance of duble-skin fa̧acades in intelligent office buildings : a case study in Germany Bayram, Ayça; Elias Özkan, Soofia Tahira; Department of Architecture (2003) The building industry makes up a considerable fraction of world̕s energy consumption. The adverse effects of a growing energy demand such as depletion in fossil fuel reserves and natural resources hassled the building industry to a search for new technologies that result in less energy consumption together with the maximum utilization of natural resources. Energy- and ecology-conscious European countries incorporated the well-being of occupants while conducting research on innovative technologies. In view o...
Performance based façades: retrofit strategies for energy efficiency and comfort in existing office buildings Jahed, Negin; Gürsel Dino, İpek; Department of Architecture (2018) The building industry is faced with a vast stock of existing buildings that are not sustainable and suffer from poor conditions in terms of physical problems. Energy retrofitting of existing buildings is considered as a rational strategy to minimize buildings’ environmental impact in the long term. Standard building retrofits focus on prescriptive measures to comply with energy standards rather than occupant requirements. In contrast, the proposed performance-based retrofit approach focuses, primarily on in...
Cement production by cement-bonded wood particleboard wastes Yilmaz, Mustafa; Tokyay, Mustafa; Yaman, İsmail Özgür (2016-01-01) To improve the sustainability of cement and concrete production, there is an increasing trend towards using industrial wastes throughout their production processes. The aim is to find new resources that can be used in any step of cement and concrete production and to find solutions to many problems related to the disposal of wastes. This article discusses the use of wastes generated from cement-bonded wood particle board (CB) manufacturing in cement production. CB waste, which basically contains wood chips ...
Performance-Based Façades: Retrofit Strategies for Energy Efficiency and Comfort in Existing Office Buildings Jahed, Negin; Gürsel Dino, İpek (2018-09-14) The building industry is faced with a vast stock of existing buildings that are not sustainable and suffer from poor conditions in terms of physical problems. Energy retrofitting of existing buildings is presumed as a rational strategy to minimize buildings' environmental impact in the long term. Standard building retrofits focus on prescriptive measures to comply with energy standards rather than occupant requirements. In contrast, the proposed performance-based retrofit approach focuses primarily on indoo...

Citation Formats

T. Tolga, “Thermal performance enhancement of microencapsulated phase change material/geopolymer composites through graphite platelets and nano-additives for building energy storage applications,” M.S. - Master of Science, Middle East Technical University, 2023.