In heat recovery systems, shell and tube heat exchangers capture waste heat from one process to preheat another fluid or generate steam, thereby enhancing overall energy efficiency. Their ability to handle high-pressure and high-temperature fluids makes them versatile across various industries, from power generation to chemical processing. By leveraging shell and tube heat exchangers with waste heat recovery systems and economizers, industries can achieve significant energy savings, and operational efficiency, making them a smart choice for cooling applications.