Document Type
Article
Publication Date
Summer 7-17-2025
Abstract
Climate change with Egypt’s increasingly hot weather and plans towards energy transition, addressing an approach for clean HVAC (Heating, Ventilation, and Air Condition) solutions is becoming requisite. This paper examines the potential of utilizing solar absorption cooling systems in institutional buildings by presenting a case study of a proposed solar absorption cooling system for a library building with an area of 4402 m2, located at the British University in Egypt. The proposed solution is to replace 30% of the existing conventional air conditioning units with a hot-water driven single-effect absorption chiller powered by solar thermal vacuum tube solar collectors, coupled with a stratified hot water storage tank. The potential area of the solar collectors was calculated to be 856 m2. A detailed analysis was done using TRNSYS (Transient Simulation System Software) as a simulation tool, to find that the optimum stratified hot water storage tank size is to be 10 m3; with a specific volume per solar collectors’ area of 0.01 m3m-2. The proposed system covers the cooling demand for 8 to 9 months of the year without an auxiliary heater and saves almost 95% of the electrical energy consumed by the replaced conventional air conditioning system.
Recommended Citation
safwat, hesham and El-Mahallawi, iman, "Solar Absorption Cooling Systems – A Case Study in Egypt" (2025). Mechanical Engineering. 98.
https://buescholar.bue.edu.eg/mech_eng/98
