Wind power systems for heat production, storage and supply of living buildings: Parameters of the powerful wind thermal stations

Table 4.3 lists parameters of wind power system of heat supply and traditional heat only boiler station on the natural gas, calculated for the next initial data: living floor area 1200000 m2; specific thermal power losses in the domestic buildings – 40 W/m2; average wind duration – 10 hours a day; duration of heating season – 6 months; average wind velocity for a given terrain – 7 m/s; energy conversion efficiency of wind power system – 0,9; specific heat capacity of coolant (water) - 4,2 kJ/(kgхK); working temperature range of thermal storage unit - 200C…700C…200C; energy conversion efficiency of the heat only boiler station on the natural gas – 0,9; heat of combustion of natural gas - 32,7 MJ/m3.

 

Figure 4.30,a,b illustrate heat losses versus living area of domestic buildings accordingly during a day and a heating season. Figure 4.30,c shows intensity of heat losses versus residential space of domestic buildings. Figure 4.30,d shows power of the wind power systems and traditional heat only boiler stations on natural gas versus residential space of domestic buildings at average wind duration of 10 hours per day.. Figure 4.31 shows power of wind systems versus residential space of buildings. As a parameter the average daily duration of wind was used (5h; 10 h; 15h and 24 h). A number of wind turbines in the wind power system is determined by the power of separate turbines and total power of wind power plant.

The necessary heat capacity of accumulator is determined by specific heat capacity of coolant and heat losses in living space. Figure 4.32 shows necessary heat capacity of thermal storage unit versus living area in domestic buildings.

 

By Vasil Sidorov on October 10, 2012 

Technopark QUELTA, Queltanews from

Nizhyn Laboratories of Scanning Devices

sidorovvasil@gmail.com

 


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