Daily Archives: September 18, 2025

What is Spiral Heat Exchanger? A Spiral Heat Exchanger is a specialized type of heat exchanger designed around two long, flat plates that are coiled around a central core to form two concentric, spiral flow channels for the two fluids. One fluid flows through the inner channel, and the other fluid flows through the outer channel in...

What is Plate Fin Heat Exchanger? What is a Plate Fin Heat Exchanger (PFHE)? A Plate Fin Heat Exchanger (PFHE), also known as a Aluminium Brazed Heat Exchanger, is a type of compact heat exchanger characterized by its very high heat transfer surface area to volume ratio. It consists of corrugated fins sandwiched between parallel...

What is Plate and Frame Heat Exchanger? What is a Plate and Frame Heat Exchanger (P&FHE)? A Plate and Frame Heat Exchanger is the most common type of gasketed plate heat exchanger (gasketed PHE). It consists of a pack of corrugated metal plates clamped together in a frame. The name “plate and frame” specifically...

What is Double-Pipe (Hairpin) Heat Exchanger? A Double-Pipe Heat Exchanger is the simplest type of heat exchanger in its construction. It consists of one pipe mounted concentrically inside another, larger pipe. The two fluids flow through the exchanger: one through the inner pipe and the other through the annular space (the gap) between...

What is Air Cooled Heat Exchanger (ACHE / Fin-Fan)? An Air-Cooled Heat Exchanger (ACHE), often nicknamed a Fin-Fan, is a type of heat rejection device that uses ambient air as the cooling medium to cool or condense a process fluid. Instead of using water, it uses mechanical fans to force or draw air across a bundle of […]