High efficiency, maximum reliability and the lowest possible nitrogen oxide emissions – all provided by the new Vitobloc 200 EM-430-SCR combined heat and power (CHP) generation unit. Yielding an electrical output of 430 kilowatts, the unit is particularly suitable for use in public buildings as well as for energy suppliers, contractors and other industrial and commercial applications.
Thanks to its modular construction, the CHP unit can be configured to suit the respective user’s specific requirements. For instance, versions are available with return temperatures from 60 °C to 80 °C. An external exhaust gas heat exchanger can also be installed as an optional extra, providing a further 300 kilowatts of thermal output. This makes it possible to integrate the unit in systems with absorption cooling units. In addition, it can be installed in thermal oil applications – such as to supply heat for ovens in large-scale bakeries. The ability to combine the unit with waste heat boilers rounds off the extensive spectrum of potential applications.
Thanks to its integrated SCR (selective catalytic reduction) system, the Vitobloc 200 EM-430 emits particularly low levels of nitrogen oxide –less than 100 milligrams per standard cubic meter. As a result, the CHP unit not only falls below the current statutory emissions limits but also fulfills the requirements of the 44th German Federal Emission Control Act (BImSchV) even before it enters into force.
An electrical efficiency factor of 39.6 percent and an overall efficiency factor of 90 percent (with external exhaust gas heat exchanger) ensure that the natural gas-powered CHP unit consumes fuel efficiently and incurs low energy costs as a result.
The reliability of all components in the unit also makes a significant contribution to keeping operating costs low. The CHP unit’s robust design ensures a high degree of operational reliability with long maintenance intervals and a long lifespan. Specifically designed for stationary operation, the unit’s motor has a long service life and can go 1,000 operating hours between servicing. In this regard, the comprehensive Viessmann Service – which ranges from commissioning to training and through to a full-service contract – guarantees maximum availability of the CHP unit, ensuring it operates with high efficiency throughout its entire lifespan.
Every single CHP unit is subjected to comprehensive testing before being delivered as a pre-assembled module, ready for operation. The standard equipment includes, among other things, compensators to isolate noise and vibration in the gas, exhaust gas, hot water and exhaust air connections. This reduces the work required to install the unit to an absolute minimum.
The new Vitobloc 200 EM-430-SCR CHP unit will be available from July 2019.