Global ETD Search
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 2 of 2 for “"heating, ventilation, air-conditioning and refrigeration (HVAC&R) systems"”.
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Impact of heat exchanger surface wettability on condensation, frosting, and defrosting performance under practical testing conditions
Condensation and frost accumulation on aluminum heat exchangers present major challenges for heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems. Both phenomena increase thermal resistance and airflow restriction, which diminish heat transfer, lower system capacity, and drive …
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Vortex-enhanced heat transfer by a new delta-winglet array
Liquid-to-air and phase-change heat exchanger performance is crucial to meet efficiency standards with low cost and environmental impact in numerous end-use energy applications. Research on performance improvement of heat exchangers often focuses on the air side because transport coefficients are …