Varmegenvindingsanlæg

Varmegenvindingsanlæg, often translated as heat recovery units or heat exchangers, are systems designed to capture and reuse waste heat from one process or stream and transfer it to another. This process significantly improves energy efficiency by reducing the need for additional energy input. Varmegenvindingsanlæg are commonly employed in various applications, including industrial processes, building ventilation systems, and even domestic hot water heating.

In industrial settings, they can recover heat from exhaust gases or cooling water, using it to preheat incoming air or water, thereby lowering fuel consumption. For buildings, heat recovery ventilation (HRV) systems extract heat from outgoing stale air and use it to warm incoming fresh air, maintaining good indoor air quality while minimizing heat loss. This is particularly beneficial in colder climates.

The core principle behind a varmegenvindingsanlæg is heat transfer, typically achieved through a heat exchanger. These exchangers can be designed in various forms, such as plate, shell-and-tube, or finned coil types, depending on the specific application and the properties of the fluids involved. The efficiency of a varmegenvindingsanlæg is measured by its ability to transfer heat, often expressed as a percentage. By reducing overall energy demand, these systems contribute to lower operational costs and a reduced environmental footprint.