Electrical Monitor
 

Arani sets new standards for turbine technology

Em News BureauThursday, April 18, 2013, 11:39 Hrs  [IST]

Arani KalinaHyderabad-based turbine maker Arani Power Systems, has set a new industry benchmark by successfully designing, manufacturing and completing the mechanical test run of a Kalina cycle vapor turbine. The turbine is destined to an overseas client through a consultant.

This vapor turbine will be used to generate power from waste heat generated by a cement plant. It is the first time that such a turbine is being manufactured in India.

The Kalina cycle is principally a “modified” Rankine cycle. The transformation starts with an important process change to the Rankine cycle — changing the working fluid in the cycle from steam to a “mixture” of ammonia and steam vapor, explained a senior Arani official.

Compared to the conventional century old Rankine cycle, a Kalina cycle power plant may offer efficiency gains of up to 50 per cent for low heat energy sources such as geothermal brine at 150°C to 210°C. Gains of up to 20 per cent may be realized for higher temperature heat sources such as direct fired boilers, waste heat from cement plants, and exhaust gases from a gas turbine i.e. bottoming cycle of a combined cycle plant.

 
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