Design and manufacture hot water to sludge heat exchangers to maintain digester temperatures.
What we did
Biogas Products Ltd were contracted to design, manufacture and deliver to site 4no hot water to sludge tube/shell heat exchangers used to maintain digester temperatures. These new heat exchangers were to replace existing ones that had lost their heat transfer efficiency.
The heat exchangers were designed to raise the temperature of 54m3/hr sludge flow recirculation by 2C to maintain a digester temperature of 38C. The heat exchangers are manufactured in 304SS.
Products and Services
The heat exchangers were designed, manufactured, assembled and pressure tested at our Works before delivery to site. The heat exchangers were insulated using Contraflex insulation jackets after installation.
The new heat exchangers improved the heat transfer efficiency considerably enabling digester temperatures to be easily maintained.