Numerical investigation of the heat pump system

Sánta, Róbert; Garbai, Lászó; Fürstner, Igor

doi:10.1007/s10973-017-6489-8

Cited by 8 publications

(3 citation statements)

References 21 publications

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“…Communication unit is ideal for long term application and it is also simple to implement IoT/AI building automation projects. Similar measurement process is described in [12] for heat pump modelling and in [13] for compressor station regulation.…”

Section: Methodsmentioning

confidence: 99%

Monitoring and Regulation of Indoor Conditions

Stojkov

Crnogorac

Alinjak

et al. 2022

Period. Polytech. Mech. Eng.

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This paper presents research of energy performance analysis performed by Building Energy Management System (BEMS). BEMS is a system/platform integrated with building and it is an enormous improvement in a process to develop nearly zero energy buildings (nZEB). Near zero energy consumption stands for energy efficient idea of energy independent buildings for their function during their life time. Here, BEMS with function of monitoring and regulation of cooling energy demand is developed. BEMS regulates function of ventilation fan in area below tin roof and improves working conditions by inside building temperature reduction during summer period. Described technical solution is designed inside RESCUE IPA CBC project.

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Section: Methodsmentioning

confidence: 99%

Monitoring and Regulation of Indoor Conditions

Stojkov

Crnogorac

Alinjak

et al. 2022

Period. Polytech. Mech. Eng.

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“…To speed up the analysis, numerical simulation is a practical and economical method to analyze the cycle heating performance [ 29 , 30 ] and predict the best design parameters of the research object under specific working conditions before experimental research [ 31 ]. However, necessary simplification and assumptions are still needed to build the component model, compared with the real processes.…”

Section: Introductionmentioning

confidence: 99%

Comparative research on vapor injection heat pump with a novel flash tank

Sun

Guo

et al. 2023

Heliyon

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“…In the past few years much, scientific attention has been paid to the use of vapor compression cycles with and without internal heat exchangers [2][3][4][5]. Research works have dealt with the comparison of cooling capacity amounts, power consumption of the system and COP parameters when operating at various evaporation and condenser temperatures implementing R1234yf and R1234ze(E) as possible alternatives for R134a [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Heat Pump System with IHX Using R1234yf and R134a

Sánta

2021

Period. Polytech. Mech. Eng.

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This research presents an energy performance analysis of the heat pump system with internal heat exchanger (IHX). The mathematical model of the heat pump outlined in this paper has been created by the author, it is steady-state with lumped parameters. The experimental validation of the model has been carried out using R1234yf and R134a as refrigerant. The aim of this work is to compare the energy performance in a wide range of operating conditions of a monitored heat pump system using both refrigerants. Finally, the heating capacity for R1234yf was lower from 0.63 % to 7.54 % compared with R134a, while the compressor power was similar from 0.12 % to 3.51 %. The COP values of R1234yf were lower than those obtained of R134a, ranging from 1.39 % to 4.22 %.

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Numerical investigation of the heat pump system

Cited by 8 publications

References 21 publications

Monitoring and Regulation of Indoor Conditions

Monitoring and Regulation of Indoor Conditions

Comparative research on vapor injection heat pump with a novel flash tank

Comparative Analysis of Heat Pump System with IHX Using R1234yf and R134a

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