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A Numerical Study on The Effect of Changes to Air Distribution on Heating Performance of a Forced Air Circulation System
Department: Mechanical Engineering
ResourceLengthWidthThickness
Paper000
Specimen Elements
Pocatello
Unknown to Unknown
Vincent Akula
Idaho State University
Thesis
Yes
12/12/2022
digital
City: Pocatello
Master
There is a potential to reduce residential energy consumption by harnessing “accessible and cost- effective technologies” such as a highly efficient heating system. In this study, Computational Fluid Dynamics (CFD) simulation is carried out on the baseline and modified versions of the baseline residential building’s heating system. The results are compared to investigate optimization opportunities. The modifications were limited to a specified room which included changing the location of air vents, the size of the air vents and the air flow rate. Performance criteria for the models included ASHRAE’s thermal comfort assessment, freshness of air using Simscale’s passive scalar source tool, heating efficiency, temperature distribution and air velocity efficiency. The results show that models with a higher air supply vents performed better particularly for thermal comfort and air velocity efficiency while lower air supply register models performed better for temperature distribution and heating efficiency. The models which showed better performance for heating and temperature distribution did not meet standards for thermal comfort, but the results provide a roadmap for innovative energy-efficient residential heating systems design. Keywords Forced Air circulation, Heating performance, Air distribution, Residential building, heat flow in a room, temperature distribution,

A Numerical Study on The Effect of Changes to Air Distribution on Heating Performance of a Forced Air Circulation System

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