Heat recovery system

Multistage Heat recovery in an integrated solution can create a closed loop system and is the best way to maximize your process efficiencies. By extracting and recycling the thermal energy at various stages in the process, heat recovery not only saves on operating cost but also fuel efficiency. Based on the unique process and requirements, different types of heat exchangers can be integrated into the overall system. Epcon hold several patents in the field of heat recovery and our team of experienced engineers can advise of the many opportunities to best utilize primary, secondary and even tertiary heat recovery methods into your process operations. Primary Heat Exchange Systems Primary Heat exchangers are heat exchangers which use the recently combusted hot gas to pre-heat the process gas entering the Oxidizer. These kinds of heat recovery systems save energy costs by reducing the amount of fuel required to maintain combustion. There are two main kinds of Primary heat exchangers: Recuperative systems, which are generally air-to-air exchange systems which heat the process gas through a shell and tube system, which directly heats the air through convection, these systems can have heat recovery effectiveness of approximately 80%. These systems rely on a shell and tube type heat exchanger, where the hotter gas passes over the shell, heating up the cool gas passing through the tubes, using convection. Shell and tube type of heat exchangers are further divided on the basis of their operation. In parallel type heat exchangers, cold gas which is required to be heated passes through tubes, which are arranged in several passes.