The exhaust gas heat exchanger uses the waste heat generated by energy generation in the form of flue gas. To efficiently utilize the available heating power, re-heat from these exhaust gases is used to add it to a second medium – for example, hot water. By using it for recycling, the existing residual heat can be significantly reduced.
The efficiency of the own plant increases markedly with such a technique, whereby precious primary energy can be saved and carbon dioxide emissions reduced. Therefore, it is not only cost-effective but also environmentally friendly.
Often, exhaust gas heat exchangers can achieve the same result for a fraction of the cost that a replacement of the entire heating system would cost. It uses, for example, the loss heat to preheat and keep the heat on for tools, molds and spaces for manufacturing.
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Applications for modern exhaust heat exchangers
In addition to reducing energy costs, the reduction of carbon dioxide emissions also plays an important role. A reduction of the necessary primary energy of up to 16% also reduces emissions of pollutants, which is particularly important for energy-intensive industries.
Exhaust heat exchangers can be used anywhere where waste heat is generated by flue gas. This is the case, for example, in bakeries, curing plants and plastic recycling plants. Due to modern manufacturing processes, these industries cannot cope without high temperatures and the resulting waste heat, and therefore they use this waste heat to make production more efficient.
A conversion of this otherwise wasted energy of up to 96% into reusable heat, or even electric current, increases the efficiency and economy of the entire production. This makes waste heat recovery particularly attractive, as this almost maintenance-free unit has hardly any ongoing costs.