Rihmalämmönvaihdin

Rihmalämmönvaihdin, also known as a lamella heat exchanger, is a type of heat exchanger that utilizes thin, corrugated metal plates called lamellae to facilitate heat transfer between two fluids. These lamellae are typically stacked in a compact arrangement, creating a large surface area for heat exchange within a relatively small volume. The corrugated design of the lamellae enhances turbulence in the fluid flow, which in turn promotes more efficient heat transfer compared to smooth surfaces.

The design of a rihmalämmönvaihdin allows for a counter-current or co-current flow of the two fluids. In a counter-current arrangement, the hot fluid flows in one direction while the cold fluid flows in the opposite direction, maximizing the temperature difference across the heat exchange surface and thus improving efficiency. In a co-current flow, both fluids flow in the same direction. The fluids are directed through alternating channels formed by the stacked lamellae.

Rihmalämmönvaihdin are known for their high thermal efficiency and compact size, making them suitable for applications where space is limited. They are also often favored for their ability to handle high pressures and temperatures. Their construction typically involves materials like stainless steel, titanium, or other corrosion-resistant alloys, depending on the specific application and the properties of the fluids being used. Common applications include industrial processes, HVAC systems, refrigeration, and power generation, where efficient heat recovery or transfer is critical.