Heat Recovery from Air / Gases / Flue Gases

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Heat recovery from chimney exhaust captures and utilizes the waste heat from industrial systems to generate steam, hot water, or chilled water, depending on the specific application. Heat recovery steam generators (HRSG) can convert exhaust heat into steam for industrial processes, while heat exchangers can be used to heat water for various applications such as space heating or process water. Additionally, absorption chillers can use the recovered heat to produce chilled water for cooling purposes, making it ideal for large buildings or plants requiring both heating and cooling. This process significantly improves energy efficiency, reduces operational costs, and minimizes environmental impact by reusing waste heat rather than letting it dissipate, benefiting industries such as power generation, steel manufacturing, and cement production.

In buildings, particularly in chemical production facilities or hospitals, a significant amount of heat needs to be removed to maintain optimal temperature conditions. CST's heat pipe systems efficiently address this challenge by keeping two air streams separate. This separation helps to prevent energy loss and minimizes the transfer of unwanted heat between different areas. By effectively managing heat within these buildings, CST’s system can significantly reduce energy consumption, enhance temperature control, and lower operational costs. The technology is particularly useful in environments where precise temperature regulation is crucial, such as in pharmaceutical production, hospitals, or other critical industries, leading to both energy savings and improved efficiency.

In a Combined Cycle Power Plant (CCPP), the exhaust gases from a gas turbine pass through a Heat Recovery Steam Generator (HRSG) to capture waste heat and produce steam. This steam is then directed through a steam heating coil to provide additional heating for processes within the plant. The steam is also used to drive a steam turbine, enhancing power generation. This combined approach improves the plant’s fuel efficiency by utilizing exhaust heat, resulting in overall efficiency levels above 60%, compared to the lower efficiency of traditional single-cycle plants. By recovering waste heat, CCPPs reduce fuel consumption and emissions, making them a more sustainable power generation solution.