Solar Water Heater Preheating for Power Plants: Potential Coal Savings

Executive Summary This research article investigates the integration of solar water heater preheating systems into thermal power plants as a means to reduce coal consumption and improve overall plant efficiency. Given the increasing challenges associated with fossil fuel supply, environmental concerns, and the need for cost-effective solutions, solar preheating technology offers a promising opportunity to enhance the feedwater heating process. Traditional coal-only systems require significant coal consumption to raise water temperatures to the necessary levels for effective steam generation. By incorporating solar thermal energy, which supplements the conventional heat source, plants can achieve higher thermal efficiency through reduced auxiliary fuel usage.