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 4 of 4 for “"Variable refrigerant flow"”.
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EXPERIMENTAL EVALUATION OF A MULTIFUNTIONAL VARIABLE REFRIGERANT FLOW SYSTEM IN AN EDUCATIONAL OFFICE BUILDING
… in the building sectors. A multifunctional variable refrigerant flow (MFVRF) system is finding its way into residential and commercial buildings since it can simultaneously provide space cooling, space heating and hot water. The MFVRF system was installed in an educational office building …
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TRANSIENT MODELING OF TWO-STAGE AND VARIABLE REFRIGERANT FLOW VAPOR COMPRESSION SYSTEMS WITH FROSTING AND DEFROSTING
… in the literature, this new model accounts for refrigerant pressure drop and possesses a more accurate evaluation for the air side heat transfer. Based on this modeling framework, the transient characteristics of a flash tank vapor injection (FTVI) heat pump system undergoing cycling, frosting …
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Analysis of Energy Savings and Feasibility of Retrofitting New York City Midrise Multifamily Buildings with Air Source Heat Pump Technology
… were selected for the space heating analysis: variable refrigerant flow (VRF) heat pumps, packaged terminal heat pumps (PTHPs), and central air-to-water heat pumps (AWHPs). This report also addresses retrofitting fossil fuel water heating systems with air source heat pump technology. …
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A decentralized control design approach to a class of large-scale systems
… also demonstrated for a more realistic system: a variable refrigerant flow (VRF) air-conditioning and refrigeration system for a building. Through a gray-box modeling approach, it is shown that VRF systems naturally exhibit a BAS structure and, therefore, can benefit from a BAS control approach. …