Garbage power plant chimney exhaust

What is a chimney in a thermal power plant?

Chimneys of the thermal power plants or process industries are used to flush out the waste hot flue gases from combustion chamber of boiler into atmosphere. The flue gases from the stack hold considerable amount of thermal and kinetic energy, which is shear wastage of energy.

Can chimney flue gases be extracted from 660 MW power plant?

The simulated results show that about power may be extracted from the chimney flue gases of 660 MW power plant. The system can be retrofitted to existing chimneys of thermal power plants, refineries and other industries.

How tall is a power plant chimney?

In Modern Power plants are constructed with Chimneys of 275m tall for discharge of hot waste gas at high altitude level. Hot waste gas is carried through flues made up with either brick or steel material supported on RCC wind shield. Construction of RCC shell and flues are challenging due to its height.

How fast does a chimney exhaust flow?

A chimney of a typical thermal power plant (660 MW) has been observed to release exhaust flue gases with density, ρ =0.816 kg/m 3 at an average velocity, V =22 m/s having flow rate, m ˙ =3500000 m 3 /h. The chimney exhaust usually has a strong and consistent speed unlike the natural wind.

Are industrial exhaust and chimney flue gases a high velocity man-made wind resource?

Industrial exhaust and chimney flue gases can be considered a high velocity man-made wind resources. The implementation the energy recovery ducted turbine (ERDT) system is helpful in extracting the kinetic energy of the chimney flue gases so as to produce power at the site itself.

Can a turbine be installed at a chimney outlet?

Installation of a turbine at the outlet of chimneys can recover a portion of the kinetic energy of exhaust flue gases for power generation. The flue gas speed is almost constant (20–25 m/s) and generally more than the natural wind speed (average wind speeds on land is 5.5 m/s and offshore is 6.5 m/s).