Presentation of the exercise

In this exercise, we model a real cogeneration plant, located in the Paris suburbs, which produces hot water at 90 °C by recovery of the exhaust of the micro-gas turbine studied in exercise sessions S21En to S23En.

To fix ideas, such a cogeneration facility could be used to supply energy to a small apartment building.

The purpose of the exercise is to model such a plant with Thermoptim and deduce the values of the cogeneration indicators, then to prepare its exergy balance.

You can download the statement of this exercise from the link below.

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• Exercise statement (pdf, 6 Kb)

(Session realized on 06/21/11 by Renaud Gicquel)

Micro-GT cogeneration

• Regeneration micro-GT
• Hot water production
• Model studied sessions S21En to S23En
• Energy supply of a small appartment building

Micro-GT cogeneration

• Exercise solution (zip, 9 Kb)
• Model construction and verification methodology (pdf, 96 Kb)

Micro-GT cogeneration

• Mechanical efficiency η_m = 36.7 %
• Overall efficiency η_g = 81.6 %
• Heat-power ratio HP = 1.23

Micro-GT cogeneration