Paper Conference

Proceedings of eSim 2020: 11th Conference of IBPSA-Canada


Multi-objective Optimization of a Coupled BIPV/T-Solid Desiccant Cooling System for a Warm and Humid Climate

Nima Bonyadi, Aditya Nibandhe, Efstratios Rounis, Bruno Lee, Andreas Athienitis, Ashutosh Bagchi
Concordia University, Canada

Abstract: A Solid Desiccant Cooling (SDC) system requires low-temperature heat, which can be supplied using a Photovoltaic Thermal (PV/T) collector. However, the increase in PV/T outlet air temperature is limited by PV surface temperature. Therefore, an auxiliary heater is needed to meet the required regeneration temperature, but high auxiliary heater energy consumption renders the system impractical. The objective of this study is to optimize the design parameters of a Solar Assisted Desiccant Cooling System (SADCS). An integrated solar air collector (PV/T + Solar Air Heater, SAH) and SDC system has been designed to cool a retail store in a low‑rise mixed‑use building in a warm and humid climate. A multi-objective optimization study has been conducted to maximize the PV electricity production and minimize the SDC subsystem’s auxiliary heater energy consumption, limiting the PV surface temperature. The results show that increasing the solar collector outlet air temperature directly impacts the auxiliary heater energy consumption, which reduces the operational energy cost.