Investigation into the Environmental Improvement of Passive Solar Design for Cooling (Comfort) in Residential Buildings in Saudi Arabia

Abstract

This dissertation investigates the environmental improvement of passive solar design for cooling residential buildings within Saudi Arabia’s unique climatic and cultural context. The research employs a mixed-methods approach, incorporating case studies and surveys, to evaluate the integration of passive solar techniques and renewable energy technologies, such as photovoltaic systems and heat pumps. Key findings reveal that hybrid systems combining passive solar design with photovoltaics can reduce energy consumption by up to 70.7%, while ground-source heat pumps achieve a 34% reduction in CO₂ emissions compared to air-source systems. The study also highlights the feasibility and cultural compatibility of integrating traditional architectural elements, like Mashrabiya, with modern sustainable solutions. These results underscore the potential of passive solar design and hybrid systems to align with Saudi Arabia’s Vision 2030 sustainability goals. However, challenges such as high initial costs, limited public awareness, and expertise gaps necessitate targeted policy interventions, capacity building, and public education initiatives. This research provides valuable insights into sustainable housing practices, offering actionable recommendations for enhancing energy efficiency, reducing carbon emissions, and advancing environmentally responsible construction in extreme climates.