Investigation the effect of integrating solar desalination systems with firefighting networks for coastal cities

This study investigates integrating solar desalination systems with seawater-based firefighting networks as a sustainable solution for coastal cities facing freshwater scarcity. This study evaluates technical feasibility, economic impact, and operational performance by comparing conventional seawater firefighting infrastructure with systems utilizing desalinated water produced via solar energy. The methodology includes a detailed component and cost analysis of both systems, supported by experimental pump performance tests using varying salt concentrations and seawater. Results indicate that desalinated water systems offer significant economic savings—approximately 48.82%—due to reduced corrosion, lower maintenance demands, and improved pump efficiency. Experimental findings also show that increased salinity accelerates cavitation and reduces both pump head and efficiency. The study concludes that integrating solar-powered desalination with firefighting infrastructure enhances system sustainability, operational reliability, and long-term cost-effectiveness, making it a viable alternative for resilient emergency water supply in coastal environments.