Performance investigation of zero-building-integrated photovoltaic roof system: A case study in Egypt

摘要: Abstract The concept of zero-energy buildings was developed due to the high cost electricity and availability renewable energy. This study presents detailed design steps for a zero building using grid-connected photovoltaic (PV) system with battery supply load demand in Egypt (31.0409°N, 31.3785°E). In design, sizes components are determined, including PV cells, batteries, chargers, controllers, such that they fulfill requirements. Maximum power tracking is designed achieve maximum utilization solar addition, cooling model introduced increase its efficiency. performance without thermal absorber theoretically investigated compared three-dimensional conjugate heat transfer model. A coupled thermal-electrical iterative also used estimate system’s hourly performance. Findings show increasing flow rate proposed from 0 L/min 1 L/min significantly decreases temperature module 60 °C 41 °C at radiation 650 W/m2. theoretical results technology coolant 2 L/min /module generates highest electrical along enough energy residential heating. outlet warm water process has been household uses zero-building theory. can be floor heating radiant systems efficiency good comfort. Furthermore, sell 33.5 61.9 kWh grid per day summer winter, respectively.