Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
FEASIBILITY OF SOLAR GEOTHERMAL HYBRID SOURCE HEAT PUMP FOR PRODUCING DOMESTIC HOT WATER IN BRAZILIAN CLIMATES
Submission Author:
Willian Moreira Duarte , MG , Brazil
Co-Authors:
Willian Moreira Duarte, Tiago de Freitas Paulino, Antônio Maia, Luiz Machado
Presenter: Willian Moreira Duarte
doi://10.26678/ABCM.COBEM2019.COB2019-1098
Abstract
This work presents a study for examining the viability of Solar Geothermal Hybrid Source Heat Pump (HSHP)systems to produce domestic hot water in Brazilian climates. The system considered has an open loop ground under-ground (aquifer) water and an uncovered solar collector that can be use separately or connected in series topology. Therefrigerant chosen for the heat pump was R290 (propane). This theoretical analysis was made using lumped models foreach component of the system. The results showed that the HSHP has better COP and higher heating capacity than anSolar Assisted Heat Pump (SAHP) if the solar radiation is lower than 950W/m2. Although, HSHP has better performancethan the SAHP the cost of installation of HSHP is higher than of SAHP. Therefore, economical analysis was carried outto compare the payback time of a SAHP and HSHP over an electrical heater.
Keywords
HSHP, SAHP, R290, Payback, economical analysis
