ENERGY CONSERVATION

 

 

ENERGY CONSERVATION

 

ABSTRACT:

                         Energy is an important unit for development. In the present energy crisis scenario, many people think in terms of alternate energy sources and conservation methodologies. In a Thermal power station, Boiler units are designed to transfer heat energy from combustion of pulverized coal to water and in turn to steam which will rotate a prime mover and from which electricity is obtained. Boilers which are present in the power stations are made of web of high pressure steel tubes and insulated with cotton; some of the heat radiated through walls and absorbed by the insulation is wasted. From an energy conservation point of view it would be desirable to reclaim this heat in a usable form. The best and most obvious form of heat recovery is pre heating the feed water. For this purpose we are introducing a new concept of “HOLLOW BOILER” in which feed water is circulated in the hollow space before sending to the feed water tank. Due to this, water which is fed into the boiler will be pre heated to high temperature (say 80 degree) there by it functions as an economizer and temperature control sensors are employed to avoid over heating of the feed water. In order to avoid corrosion, the boiler walls are coated with sheets of “Austenitic stainless steel” which is having the property of high corrosion resistant with good mechanical properties like toughness, weldability, heat resistant, machinability.

Objective:

Ø  To utilize the heat wasted in the boiler walls by simply insulating with cotton and radiating to ambient,

Ø  Water circulated in the hollow walls of the boiler  will act as coolant,

Ø  Austenitic stainless steel sheets are used to reduce corrosion,

 To employ Tangential firing to utilize maximum heat energy from coal to get super saturated steam.

 

 

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CREANOVA [CREATIVE & INNOVATIVE ENGINEERS]

E-mail: creanovaengineerz@gmail.com

 

INTRODUCTION:

            Energy conservation is now faced with the challenge of applying the latest technology for facilities and improvements, which can be justified on its own merits. In the present world energy spectrum, energy management plays an important role. Under these circumstances, energy conservation is the technique to be adopted to face the energy crisis. The best and most obvious form of heat recovery in power plants is preheating the feed water. At present for this purpose economizers are used in the thermal power plants, but according to our concept usage of hollow boilers will reduce the entire section of economizer and also the water circulated in the hollow space will act as the coolant.

 

CONCLUSION:

            The usage of “Hollow Tangential Boiler” With the proper design has the following advantages:

      It reduces the work and space of an economizer,

      The feed water acts as a coolant,

      Presence of austenitic steel lining will increase the corrosion resistant property,

      Deaeration process will ensure the purity of the regenerated water and also checks corrosion.

      Tangential firing will provide the flames in the controlled surface and maximum heat transfer .

 So, Usage of the “HTB” will increase the efficiency of the boiler, there by increasing the efficiency of the Power station.