Analysis of solar underfloor heating system assisted with nano enhanced phase change material for nearly zero energy buildings approach

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dc.contributor.authorGür M.
dc.contributor.authorÖztop H.F.
dc.contributor.authorSelimefendigil F.
dc.date.accessioned2024-07-22T08:02:12Z
dc.date.available2024-07-22T08:02:12Z
dc.date.issued2023
dc.description.abstractThis study focuses on the design of a solar-assisted underfloor heating system specifically tailored for nearly zero-energy buildings. The system incorporates a Photovoltaic/Thermal (PV/T) collector as the primary heat source. The analysis takes into account the geographical coordinates of Elazig province in Turkey, and the boundary conditions are carefully chosen as the inlet parameters in the program. To enhance the system's performance, Nano-enhanced Phase Change Material (PCM) is utilized by filling pockets around the underfloor heating pipe with varying thicknesses. Cu nanoparticles of 1% solid volume fraction is considered. The fundamental objective of this approach is to achieve room temperature without any additional energy consumption during nighttime periods when solar radiation is unavailable. To investigate the impact of the system, copper nanoparticles are introduced to the PCM, and their effects on room temperature are numerically analyzed using the finite volume method under turbulent flow conditions. Realistic building conditions are considered, and a container is selected as the scenario building for simulations. The results reveal that the best room temperature conditions are obtained with pure PCM of width k (Case 1), pure PCM of width k/2 (Case 3), PCM with nanoparticle added of width k/2 (Case 3), and no PCM (Case 4), respectively. The highest temperature difference of 4 K is obtained between the configurations of Case 1 and Case 4 which shows the favorable impacts of using PCM. However, between the cases of using nano-PCM and PCM, room temperature difference of 0.1 K is obtained which indicates the very slight improvement of using nano-powders in PCM for this energy system. These findings provide valuable insights into the design and optimization of solar-assisted underfloor heating systems for nearly zero-energy buildings, offering the potential to improve energy efficiency and thermal comfort. © 2023 Elsevier Ltd
dc.identifier.DOI-ID10.1016/j.renene.2023.119265
dc.identifier.issn09601481
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/11761
dc.language.isoEnglish
dc.publisherElsevier Ltd
dc.subjectElazig [Turkey]
dc.subjectTurkey
dc.subjectArchitectural design
dc.subjectEnergy efficiency
dc.subjectEnergy utilization
dc.subjectFinite volume method
dc.subjectHeating equipment
dc.subjectNanoparticles
dc.subjectPhase change materials
dc.subjectSolar energy
dc.subjectZero energy buildings
dc.subjectGeographical coordinates
dc.subjectHeat sources
dc.subjectNanoenhanced phase change material
dc.subjectNearly zero energy building
dc.subjectPhotovoltaic thermals
dc.subjectSolar assisted
dc.subjectSystems performance
dc.subjectTemperature differences
dc.subjectThermal collectors
dc.subjectUnderfloor heating systems
dc.subjectcomputational fluid dynamics
dc.subjectdesign method
dc.subjectenergy efficiency
dc.subjectheating
dc.subjectnanoparticle
dc.subjectphotovoltaic system
dc.subjectsolar power
dc.subjectComputational fluid dynamics
dc.titleAnalysis of solar underfloor heating system assisted with nano enhanced phase change material for nearly zero energy buildings approach
dc.typeArticle

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