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COBEM 2023
27th International Congress of Mechanical Engineering
INTEGRATION OF SOLAR-ASSISTED COOLING SYSTEM AND HEAT PUMPS FOR INDUSTRIAL APPLICATIONS
Submission Author:
Lorena Guimarães , PE
Co-Authors:
Lorena Guimarães, Deivson Cesar Silva Sales, Emmanuel Dutra, Luis Arturo Gómez Malagón
Presenter: Lorena Guimarães
doi://10.26678/ABCM.COBEM2023.COB2023-1276
Abstract
Steam and cooled water are utilities in the industrial sector that can be supplied by renewable energies. In this way, the application of a Solar Energy Assisted Heat Pump (SAHP) and a Solar Energy Assisted Adsorption Cooling System (SAACS) can be exploited to achieve this purpose, respectively. The thermal modeling of these systems was performed using the TRNSYS software, considering a HP operating with R600a and an ACS using silica-gel/water. The study evaluates the impact of condensation temperature (Tcond) on key performance metrics such as coefficient of performance (COP), solar field size given by the solar collector area (Ac) and solar utilization factor (SUF). The results indicate that SUF values decrease with increasing Ac, HP COP decreases with increasing Tcond, while ACS COP remains constant. The electrical power demands for SAHP and SAACS were 5.57kW and 0.55kW considering heating capacity of 11.58kW and cooling capacity of 6.5kW, respectively. From the environmental point of view, the proposed system proves to be advantageous, reducing the Global Warming Potential (GWP) by 72.2%, 82.4% and 56.2% compared to Liquefied Petroleum Gas (LPG) and firewood boiler combined with a cooling system and a double cascade HP (DCHP), respectively.
Keywords
Solar Energy, heat pumps, adsorption chiller, TRNSYS
