The combustion of peat (milled or lumpy), as well as any other fuel that contains moisture, only the net calorific value as part of the heat is spent on evaporation of the moisture. The water vapor together with the flue gases are removed to the atmosphere, and the latent heat of vaporization is not considered. Accordingly, the losses increase with the exhaust gases, which due to the high moisture content of peat may reach comparatively high values.
The method of energy conservation on the example of the boiler plant on Peat Plant ‘Tootsi’. The basis of this method is the deep disposal of flue gas heat by forced convection through the use of design features such as heat exchanger surface and the way it works.
This flow heat recovery change the way the recycled heat from the coolant to the environment, take this heat. The modified method can dispose of latent heat of vaporization of moisture contained in the fuel, in the deep cooling of flue gases, and fully use it to heat the cooling water, which can be sent to the steam turbine cycle power plant without further processing. Heat recovery also allows the released water vapor condensation, in which the cooling process is cleaned by sulfuric acid contained in the peat.
Produced calculation efficiency performance pure condensate and flue gas heat recovery to evaluate this method in terms of energy efficiency at a specific example.


Energy saving, energy efficiency, heatutilizer, peat, boiler room, power plant, warmth utilization, high humidity.

Issue number: 9
Year: 2016
UDK: 622.73.002.5
Authors: Nazarov M. S.

About authors: Nazarov M.S., Master’s Degree Student, Tver State Technical University, 170026, Tver, Russia, e-mail:

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