Research to estimate energy efficiency of a ventilation and air conditioning heat pump system inside a production premise with ventilation air recovery
DOI:
https://doi.org/10.24425/ather.2021.139651Abstract
The research provides a thermodynamic analysis of the theoretical model of a ventilation and air conditioning heat pump system with the ventilation air cold energy recovery depending on outside air parameters, the recovery efficiency and characteristics of a premise. A confectionery production workshop was taken as a prototype where technological conditions (temperature and humidity) must be maintained during the warm season. Calculations using the method of successive approximations to estimate air parameters at system’s nodal points were conducted. It allowed to determine theoretical refrigeration efficiency of the studied system and proved advantages of heat recuperation for smaller energy consumption. The model can be applied for design of heating, ventilation, and air conditioning units which work as a heat pump. The studied system has the highest energy efficiency in the area of relatively low environment temperatures and relative humidity which is suitable for countries with temperate continental climates characterized by low relative humidity.References
[1] Zhang J., Zhang H.-H., He Y.-L., Tao W.-Q.: A comprehensive review on advances and applications of industrial heat pumps based on the practices in China. Appl. Energ. 178(2016), 800–825.
[2] Chwieduk D.: Analysis of utilization of renewable energies as heat sources for heat pumps in building sector. Renew. Energ. 9(1996), 720–723.
[3] Khrustaliov B.M.: Heat Supply and Ventilation. ASV, Moscow 2007 (in Russian).
[4] Mazzeo D.: Solar and wind assisted heat pump to meet the building air conditioning and electric energy demand in the presence of an electric vehicle charging station and battery storage. J. Clean. Prod. 213(2019), 1228–1250.
[5] Chwieduk B., Chwieduk D.: Analysis of operation and energy performance of a heat pump driven by a PV system for space heating of a single family house in Polish conditions. Renew. Energ. 165(2021), 117–126.
[6] Bezrodny M., Prytula N., Tsvietkova M.: Efficiency of heat pump systems of air conditioningfor removing excessive moisture. Arch. Thermodyn. 40(2019), 2, 151–165.
[7] Bezrodny E.K., Misiura T.O.: The heat pump system for ventilation and air conditioning inside the production area with an excessive internal moisture generation. Eurasian Phys. Tech. J. 17(2020), 118–132.
[8] Adamkiewicz A., Nikonczuk P.: Waste heat recovery from the air preparation room in a paint shop. Arch. Thermodyn. 40(2019), 3, 229–241.
[9] Szreder M.: Investigations into the influence of functional parameters of a heat pump on its thermal efficiency. Teka. Commission of Motorization and Energetics in Agriculture 13(2013), 191–196.
[10] Redko A., Redko O., DiPippo R.: Low-Temperature Energy Systems with Applications of Renewable Energy. Academic Press, Elsevier, 2020.
[11] Morozjuk T.V.: The Theory of Chillers and Heat Pumps. Studija “Negociant”, Odessa 2006 (in Russian).
[12] Jaber S., Ezzat A.W.: Investigation of energy recovery with exhaust air evaporative cooling in ventilation system. Energ. Buildings 139(2017), 439–448.
[13] Bozhenko M.F.: Heat Sources and Heat Consumers. NTUU KPI “Politehnika”, Kyiv 2004 (in Ukrainian).
[14] State Building Standards of Ukraine DBN B.2.5-67: 2013, “Heating, ventilation and air conditioning”. Ministry of Regional Development, Construction and Housing of Ukraine, Kyiv 2013 (in Ukrainian).
[15] Szreder M.: Energy, thermal, and economic analysis of air heat pumps for hot water. Chem. Eng. Technol. 42(2019), 4, 889–895.
[16] Bezrodny M.K.: Thermodynamic and Energy Efficiency of Heat Pump Heat Supply Circuits. NTUU KPI “Politehnika”, Kyiv 2016 (in Ukrainian).
[17] Bezrodny M.K., Prytula N.O., Tsvetkova M.O.: Thermodynamic analysis of the heat pump ventilation system for support of comfort conditions in industrial premises with release of moisture. NTU “HPI” 13(2018), 77–82 (in Ukrainian).
