👉 In physics and engineering, a prewarmer is a device used to warm a fluid or material before it enters a heating process. It works by introducing a coolant or heat source into the fluid or material before it undergoes any work or change in state. This allows the fluid or material to be heated at a lower temperature than it would normally be, which can enhance its performance and efficiency. Prewarmers are commonly used in applications such as cooling systems, heating systems, and refrigeration systems where