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Hall 5

İltekno İleri Teknoloji Mühendislik ve Ticaret A.Ş. Cogeneration and Trigeneration systems

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Cogeneration is the simultaneous generation of energy in terms of electricity and heat in the same system. Simultaneous production has more economical advantages comparing to separate generation of these two energy forms.


Thermal energy of engine’s Jacket Water and Exhaust Output become usable in steam, hot water and / or thermal oil generation.


Trigeneration can be defined as producing mechanical (electrical), heat and cooling energy simultaneously from one energy source. Absorption chiller that converts heat energy to cooling energy is invented by French scientist Ferdinand Carré in 1858 by using water + sulfiric acid. In 1926 Albert Einstein and his student Leó Szilárd developped it in alternative design, also known as, Einstein refrigerator and patented in 1930. Absorption chillers are used in A/C and industrial cooling widely.


Absorption chillers consist of very few moving parts and need only heat energy. In absorption chillers, chilling principle is rely on vaporization-condensation cycle.There are 4 main heat transfer surfaces such as, evaporator, absorber, generator, and condenser. In a simple absorption chilling system, typically lithium bromide – water is used as a solution.

Advantages of Cogeneration/Trigeneration 1) Use of the electrivity where it is produced without the transmission and distribution losses 2) Prevention of production losses by providing uninterrupted electricity use 3) Short installation and commissioning time 4) Long equipment life 5) Ease of maintenance and short maintenance period 6) Low fuel gas emissions