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A platform for research: civil engineering, architecture and urbanism
Dynamic model and experimental validation for a gas cooler of a CO2 heat pump for heating residential water
This work presents a dynamic model for a CO2 heat pump gas cooler. The gas cooler model is based on the conservation equations of energy, mass, and momentum. Due to the importance of an expansion device and a compressor for heat exchanger modeling, detailed mathematical treatment is also given to those devices. The spatial variations of temperature, pressure, specific volume, and mass flow rate are predicted at each time step. The model is validated by comparing simulation results and experimental data for transient and steady conditions. It observes a reasonably good agreement between these results, with a maximum deviation of 2°C (3.6°F) between the mathematical model and experimental data, with the test data exhibiting a fairly similar trend. The developed model is therefore presented as a useful tool for analyzing the dynamic behavior for the gas cooler of a heat pump operating with CO2.
Dynamic model and experimental validation for a gas cooler of a CO2 heat pump for heating residential water
This work presents a dynamic model for a CO2 heat pump gas cooler. The gas cooler model is based on the conservation equations of energy, mass, and momentum. Due to the importance of an expansion device and a compressor for heat exchanger modeling, detailed mathematical treatment is also given to those devices. The spatial variations of temperature, pressure, specific volume, and mass flow rate are predicted at each time step. The model is validated by comparing simulation results and experimental data for transient and steady conditions. It observes a reasonably good agreement between these results, with a maximum deviation of 2°C (3.6°F) between the mathematical model and experimental data, with the test data exhibiting a fairly similar trend. The developed model is therefore presented as a useful tool for analyzing the dynamic behavior for the gas cooler of a heat pump operating with CO2.
Dynamic model and experimental validation for a gas cooler of a CO2 heat pump for heating residential water
de Oliveira, Raphael Nunes (author) / Faria, Ralney Nogueira (author) / Antonanzas-Torres, Fernando (author) / Machado, Luiz (author) / Koury, Ricardo Nicolau Nassar (author)
Science and Technology for the Built Environment ; 22 ; 30-40
2016-01-02
11 pages
Article (Journal)
Electronic Resource
English
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