Water-to-water heat recovery
Heat recovered from a hot effluent or process water stream and transferred into incoming water, cutting the steam needed to raise it.
The application
A hot water stream leaving the process at a useful temperature and going to drain, while incoming water for another duty was being heated from cold using steam.
What was engineered
An exchanger arrangement matched to both streams, allowing for the contamination in the source side, with the recovered heat delivered into the receiving water duty and the steam trim retained for control.
Result on the plant
The steam load on the receiving duty reduced by whatever the source stream could give up. Source condition, recovered heat and receiving duty are stated per installation from the measured operating data.