COP Estimations for High-Temperature Heat Pumps using natural refrigerants

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Abstract

A recent study from Andersen et al. [1] established a portfolio of heat pumps that use natural working fluids, capable of operating efficiently over a broad range of high-temperature conditions. The study conducted simulations on a total of 1056 heat pump models under 1124 different temperature conditions, with up to 150 K of temperature lift . As for the working fluids and heat pump configurations considered in the study, they spanned several hydrocarbons, ammonia, water, carbon dioxide, and many hydrofluoroolefins (HFOs). The configurations included diverse setups such as one-stage, two-stage, and cascade systems, capable of operating both subcritically and transcritically. A more accurate COP model enhances the efficiency, economic viability, and environmental sustainability of heat pump systems by enabling better system design, performance prediction, and cost-effectiveness analysis. In this work, we utilize the top performing heat pump configurations for each of the temperature conditions simulated by Andersen et al. to fit to various COP estimation methods.
Original languageEnglish
Publication date2024
Number of pages1
Publication statusPublished - 2024
EventHigh-Temperature Heat Pump Symposium 2024 to Feature Sessions on Natural Refrigerants - Technical University of Denmark, Copenhagen, Denmark
Duration: 23 Jan 202424 Jan 2024

Conference

ConferenceHigh-Temperature Heat Pump Symposium 2024 to Feature Sessions on Natural Refrigerants
LocationTechnical University of Denmark
Country/TerritoryDenmark
CityCopenhagen
Period23/01/202424/01/2024

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