In an industrial process, a considerable part of the heat generated can be lost via the exhaust air. Such energy losses are particularly high if the heat has to be dissipated at a high temperature or if the process requires a high exhaust air volume flow. The use of exhaust air from energy-intensive industrial processes is becoming increasingly important in times of energy transition and increased ecological awareness among the population. This makes it all the more important for our customers to actively address these issues and to take them into account when planning their plants.
Heat recovery plants from Airtec
We develop concepts and solutions for you to utilise this energy. With our experience for the thermotechnical core processes in our customers’ plants, we are right there by your side from planning to successful implementation.
In essence, a distinction is made between two heat recovery systems. In both systems, the air flows are hermetically separated from each other to ensure that there is no mixing of the air flows. One option is a simple heat exchanger for indirect heating of the supply air, which represents an economical use of the energy contained in the exhaust air. The warm exhaust air, which would normally be discharged into the open air, is used to preheat the colder supply air. The outlet temperature of the exhaust air is reduced and at the same time, the furnace supply air is heated. A further option is our highly efficient aluminium heat exchangers made of tube packages, where maximum energy recovery is achieved. Both variants are designed for easy maintenance, and last but not least, feature exceptionally rapid amortisation.