ERK Energy Systems products

The ERK (corner tube) Boiler is a modern, natural-circulation, single drum water tube boiler. The main characteristics are a very active water circulation, rapid load change capability, light-weight construction and self-supporting structure.

Fire tube boilers are the backbone of low pressure steam and hot water applications. The flue gases pass through the furnace and various smoke tubes. Typically, such boilers provide saturated steam or hot water. However, superheated steam supply is possible. With ERK Tubes such boilers can be very compact and low cost.

Bi-drum boilers are well-known and widely established systems. Typically, operating in natural circulation to provide saturated or superheated steam. ERK does provide bi-drum boiler designs but has adapted the standard version with an advanced water circulation to improve operational performance and reliability.

Some applications require special boiler or heater systems. ERK has designed many special boilers and heater to meet particular demands, such as heating of chemicals or simultaneous supply of steam and hot water. Special systems can be designed in natural or forced circulation, with multiple fuels, and for multiple working fluids.

Marine boilers have to cope with the various ship movements without losing operational performance. ERK marine boilers are ideal for such applications as the design is self-supporting and has a very stable water circulation. The natural water circulation minimises auxiliary power consumption. 

Based on our experience with combustion systems ERK has developed a bubbling fluidised bed (BFB) technology capable of burning biomass and waste feedstocks, thereby achieving high fuel burnout, low NOx emissions and low part-load operation. The combustion system is fully integrated into the boiler and can be preassembled in the workshop to minimise site work. Some units were transported to site fully assembled.

One of our recent innovations is the ERK Tube technology. Induced turbulences in the working media allows weight and volume reductions for boilers and heat exchangers of up to 50%. Additionally, the induced turbulences reduce particles and dust settling on the tube walls, thus significantly reducing fouling. We design according to the following four criteria: compact, light, low cost, and optimised fouling.