GE Energy Jenbacher gas engines
The GE Energy Jenbacher engines are manufactured in Jenbach, Austria and designed from the outset to run on gas (not diesel engine conversions) – either natural gas, biogas or special gases. Over five decades of experience in the gas engine business has resulted in thousands of Jenbacher engines being installed worldwide. The high tech engines cover a range for 330kWe (kilo Watts electric) to 3MW (mega watts) and are designed as stationary continuous operation units.
The high class leading efficiency (38%-44%) of Jenbacher engines result in outstanding fuel economy and the environmentally friendly technology produce very low exhaust emissions. The engines have also proved to be very durable and highly reliable in all types of applications, particularly when used for combined heat and power (CHP) or trigeneration (heat, power and cooling). They are renowned for being able to constantly generate the rated output even with variable gas conditions.
The patented LEANOX lean burn combustion control system fitted on all Jenbacher engines guarantees the correct air/fuel ratio under all operating conditions to minimize exhaust gas emissions whilst maintaining stable operation. In combination with the LEANOX system the Jenbacher gas mixer balances out fluctuations in calorific value, which occurs mainly in biogas plants.
Jenbacher engines are not only renowned for being able to operate on gases with extremely low calorific value, low methane number and hence degree of knock, but also gases with a very high calorific value.
Possible gas sources vary from low calorific gas produced in chemical industries, wood gas, pyrolysis gas produced from decomposition of substances by heat (gasification), landfill gas, sewage gas, natural gas, propane and butane which have a very high calorific value.
One of the most important properties regarding use of gas in an engine is the knock resistance rated according to the "methane number". High knock resistance pure methane has a number of 100. In contrast to this, butane has a number of 10 and hydrogen 0 which is at the bottom of the scale and therefore have a low resistance to knocking.
The high efficiency of the Jenbacher engines becomes particularly benefitial when used in a CHP or trigeneration application, such as district heating schemes, hospitals, universities or industrial plants. With governmental pressure mounting on companies and organisations to reduce their carbon footprint the efficiencies and energy returns from chp and trigeneration installations have proven to be the energy resource of choice.
For further information please send an enquiry.