Waste heat steam boiler
The Vitomax RS is a waste heat boiler that produces saturated steam.
Use of process and waste heat
As a "waste product" from industrial processes or hot flue gases
Reduction of running costs
Through saving fossil fuels
Flexible applications in combination with CHP unit
Through individual design or standardised concepts
Operation with up to 100 % hydrogen
Vitomax RS waste heat boiler for steam generation
Waste heat boilers utilise the heat from flue gases generated during combustion processes or hot exhaust air from industrial processes to generate saturated steam. Due to economic and statutory considerations, waste heat boilers are frequently used in conjunction with gas turbines and combined heat and power units. Given increasing energy costs in particular, waste heat boilers can be a very good choice.
Hydrogen up to 100 percent
In chemical operations such as the manufacture of chlorine and other industrial processes, most of the hydrogen gas is not used and is released into the atmosphere. Vitomax boilers, which can run on 100 percent hydrogen with an appropriate burner, offer a cost effective and efficient solution. At the same time a large amount of climate-damaging CO₂ is avoided.
How waste heat boilers work
Viessmann waste heat boilers are designed according to the flame tube:smoke tube principle. Hot flue gas is routed through pipe bundles, where the heat is transferred to the water inside the boiler body.
To minimise radiation losses, the waste heat boiler is fitted with 100 millimetre thermal insulation and a metallic casing. As with all Vitomax boilers, a base frame spreads the load evenly across a large floor area.
With or without auxiliary combustion
Waste heat boilers without auxiliary combustion equipment use only flue gas/exhaust air to generate saturated steam. Waste heat boilers with combustion equipment are conventional boilers with a burner and waste heat utilisation.
Waste heat boiler with additional combustion
Conventional Vitomax HS with additional waste heat flues
All fired Vitomax RS are suitable for the combustion of up to 100 % hydrogen when complying with our general conditions for the use of H2.
Waste heat boiler w/o additional combustion
Project-specific boiler design