THERMODYNAMIC ANALYSIS OF THE SCHEMECYCLE DESIGN OF A HEATINGCOOLINGMACHINEFOR AN INDIVIDUAL HOUSE
| Autor: | Andrii Moshkatiuk, Vera Kandieieva, Larisa Morozyuk, Viktoriia Sokolovska-Yefymenko, Artem Kukoliev |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
refrigerating machine
020209 energy cycle size 0211 other engineering and technologies Energy Engineering and Power Technology 02 engineering and technology Industrial and Manufacturing Engineering law.invention law Management of Technology and Innovation lcsh:Technology (General) 021105 building & construction 0202 electrical engineering electronic engineering information engineering lcsh:Industry Electrical and Electronic Engineering Process engineering energy efficiency business.industry Applied Mathematics Mechanical Engineering working fluid Photovoltaic system Mode (statistics) Refrigeration thermodynamic analysis Computer Science Applications Control and Systems Engineering lcsh:T1-995 Environmental science Working fluid lcsh:HD2321-4730.9 business Gas compressor Energy (signal processing) Efficient energy use Heat pump |
| Zdroj: | Eastern-European Journal of Enterprise Technologies, Vol 3, Iss 8 (99), Pp 43-49 (2019) |
| Popis: | The direction of the research is the thermodynamic analysis of the scheme-cycle design of a heating and cooling machine for an individual house powered by autonomous solar photovoltaic system of providing private consumers with the year-round heating and cooling in conditions of the dry tropical climate. For the analysis, a single-stage compressor refrigerating machine was used, which operates in two modes: refrigeration for air conditioning and heat pump for heating, covering all rooms in the house. Change of the modes is made seasonally or during the day depending on the ambient temperature. The energy efficiency of the refrigeration cycle(“energy” problem) associated with the properties of the working fluid, and cycle size(“transport” problem) associated with the scheme-cycle design, equipment mass, and investment costs, were determined. The study used the working fluids R404a, R134a, R410, R290, R600a, R32, which are neither prohibited nor expired. Calculations were performed separately for each model. The results showed that the R290, R600a working fluids have high efficiency in both modes, R404A, R410, R32 have the same energy efficiency, differing by no more than 10%, R134a is uncompetitive in the heating mode. Among the cycle sizes, R32, R410 have the advantage with the values half the size of R290, R404A, R600a, and R134a are not included in the alternative group. Based on the thermodynamic analysis and monitoring of the market of working fluids, only R32 can be recommended for real projects. A separate thermodynamic analysis of the scheme-cycle designs for CO2– the real prospect of refrigeration equipment was carried out. |
| Databáze: | OpenAIRE |
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