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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 36 for “"Phase Change Material (PCM)"”.
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Development of thermo-regulating fabric using phase change material (PCM)
<p>This research study concentrates on use of phase change material (PCM) in textiles which can produce thermo-regulating characteristics to control body temperature useful for various daily wear and technical textiles. The latent heat which is released or absorbed during the process of phase …
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An Investigation of Phase Change Material (PCM)-Based Ocean Thermal Energy Harvesting
Phase change material (PCM)-based ocean thermal energy harvesting is a relatively new method, which extracts the thermal energy from the temperature gradient in the ocean thermocline. Its basic idea is to utilize the temperature variation along the ocean water depth to cyclically freeze and melt a …
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ENHANCEMENT OF PHASE CHANGE MATERIAL (PCM) THERMAL ENERGY STORAGE IN TRIPLEX-TUBE SYSTEMS
… thermal energy storage components utilizing phase change materials (PCMs). These materials have the potential to store large amounts of energy in relatively small volumes and within nearly an isothermal storage process. The primary drawback of today’s PCMs is that their low thermal …
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Experimental Investigation of the Heat Source Orientation on the Transient Flow and Thermal Behaviour of Phase Change Material During Phase Transition
… transient flow and transient thermal behavior of phase change material (PCM) during solid-liquid phase change (melting) through experimental investigation. Two specific aspects of the current work, both important in the field of latent heat thermal energy storage, are to investigate the influence …
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Multifunctional polymeric foams: preparation, characterization, and environmental aspects
… was increased by including a microencapsulated Phase Change Material (PCM), able to impart Thermal Energy Storage (TES) capability at phase transition temperatures of 43 °C and 57 °C. The rheological, morphological, thermal, and mechanical properties of the prepared materials were systematically …
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Mathematical modelling of applied heat transfer in temperature sensitive packaging systems. Design, development and validation of a heat transfer model using lumped system approach that predicts the performance of cold chain packaging systems under dynamically changing environmental thermal conditions.
… results; increasing the mass of the chilled phase change material (PCM) in a system reduces the damping in product performance thereby reducing the product fluctuations or amplitude of the product performance curve. Results show that the thermal mathematical model predicts duration to failure …
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Development of phase change material integrated oriented strand board for thermal energy storage
… storing capability is achieved by integrating phase change material (PCM) in the wood board. The effect of thermal energy storage in the building envelope is to reduce indoor temperature fluctuations and delay air temperature maximum to off-peak demand period and it will help to reduce the …
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Numerical and Experimental Study of Solidification Behavior in Thermal Storage Systems
… modeling, and geometric optimization of phase change material (PCM) systems. The study addresses limitations in empirical data, HVAC integration, and configuration design for building-integrated storage. A literature review of ice thermal energy storage methods, focusing on resistance …
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Thermal performance of a room with wall latent heat storage
… the feasibility and benefits of utilization of phase change materials (PCMs) in building envelope components for thermal storage were investigated. The phase change material (PCM) gypsum board used in this study was made by soaking conventional gypsum board in a PCM with phase change range of …
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Performance optimization of low-to-moderate temperature thermal systems: a multi-pronged investigation
… thermal energy storage through incorporation of phase change material (PCM) to improve the functionality and heat transfer performance of different systems was studied. In chapter 1, the performance of a heat pipe evacuated tube collector (HPETC) is investigated through the incorporation of a …
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Off-peak cooling using phase change material
… thermal storage medium is a sodium sulfate-based phase change material (PCM) enclosed in small thin bags. These bags are distributed throughout the ceiling plane of the building; supported by special ceiling tiles. At night, the PCM is charged by chilling the plenum space; during the day, the PCM, …
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The Impact of Different Passive Roof Construction Types on Building Thermal Performance / Experimental Method for Optimizing the Thermal Performance of Building Enclosures
… the roof was the only envelope parameter that changed among the STCs. Four types of roofing technologies, Exterior Reflective Cool Coating (ERCC), Radiant Barrier (RB), Interior Radiation Control Coating (IRCC) and Phase Change Material (PCM) were individually applied to each STC. The STCs were …
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Design and performance characterization of novel heat exchanger geometries enabled by additive manufacturing
Heat exchangers (HX) with optimal geometries are of particular interest because of their potential for high performance beyond current limits. This dissertation presents design, fabrication, and characterization of additively manufactured (AM) HX, and investigates HX geometries that are difficult …
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Investigation of energy storage options for thermal management in hybrid electric vehicles
… pack. In the current study, integration of a phase change material (PCM) in the cell and sub-module levels is investigated by using a finite volume based software. The first considered scenario is to use the phase change material in different thicknesses around the Li-ion cells. The simulation …
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Experimental investigation of an integrated solar driven wastewater treatment system for trigeneration applications
… unit drives the reactor. For the hot side, the phase change material (PCM) which is heated by the concentrator feeds TEG, and the wastewater stream provides the cold surface. The PEC system is investigated experimentally while the design and calculations of the TEG-PCM sub-system are analyzed …
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Investigations on Latent Thermal Energy Storage for Concentrating Solar Power
… heat in the form of latent heat of fusion of a phase change material (PCM), in addition to sensible heat, significantly increases the energy density, thus potentially reducing the storage size and cost. However, a major technical barrier to the use of latent thermal energy of PCM is the high …
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Thermal Performance Enhancement of a Crossflow PCM-to air and liquid Heat Exchanger
… performance of a five-slab cross-flow heat exchanger integrated with phase change material (PCM). The PCM-integrated heat exchanger (PCM-HEX) incorporates two fluid flows and is improved to operate effectively during intermittent working fluid flow periods. The system targeted for …
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Investigation of advanced experimental and computational techniques for behavioural characterisation of phase change materials (pcms)
The existing Phase Change Material (PCM) thermal investigation methods have significant drawbacks and limitations in terms of the correct determination of phase change temperature and enthalpy values. It results in the inaccuracy and sometimes absence of experimental data which are required for the …
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Modelling the effects on building temperatures of phase change materials
… problems motivated by the possibility of use of phase change materials in buildings are presented. First, a model for the response of phase change material (PCM) to a varying room temperature is extended, and applied to realistic situations in a building. For a spatially varying distribution of …
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Enhancing Urban Energy Sustainability through PCM-Integrated Mortar Infrastructure
… enhancing urban energy sustainability using Phase-Change Material (PCM) and recycled crushed glass with low thermal conductivity. This study also aims to clarify contradictory findings about the impact of glass on the mechanical properties of mortar. While some studies suggest that …
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