severalls | industrial heart

We walked back across the flooded room with its pool of green water, and back into the hot water tank room. There were pipes, gauges and dials everywhere.

"The equipment of a cylindrical shape with red pipes jutting out the end are shell and tube heat exchangers, either steam or hot water is passed through an internal set of tubes, through which one of the fluids runs. The second fluid runs over the tubes to be heated or cooled. The set of tubes is called tube bundle." - D Dunn.