HRS helps AD plant for exhaust gas heat recovery

Operators of anaerobic digestion (AD) plants know how important it is to optimize energy use across all stages of the process. That is why many recapture as much heat as possible for reuse elsewhere, including from the hot exhaust gases generated by the combined heat and power (CHP) engines which turn the biogas from the AD plant into useful heat and electricity.

An AD site belonging to one of the waste management companies in the UK, transforms some 45,000 tonnes of food waste from domestic and commercial sources into renewable electricity and high-value digestate biofertilizer. From the beginning, the plant had been designed to be as efficient as possible and included exhaust gas heat recovery. However, when the original heat exchanger fitted to the exhaust system failed, the client approached HRS to provide a more robust and reliable replacement.

The ideal solution was an HRS G Series gas cooling heat exchanger: a complete stainless steel multitube heat exchanger specifically designed for exhaust gas cooling and thermal recovery. The use of stainless steel is a key factor in the longevity of the G Series.

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