A.Kainarbekov, G.Bergezhanova, B.Bakhtiyar

Almaty, Kazakhstan

CALCULATE THE CHANGE IN FUEL CONSUMPTION USED IN THE INSTALLATION OF REGIONAL BOILER USING ALTERNATIVE ENERGY SOURCES

 Keywords: regional boiler, heat source, useful boiler energy, sun energy, sun collector, fuel consumption, enthalpy of water.

 Regional boilers to create one for heat supply for industrial and domestic and utilities, also used to supplement heat load sin terms of the system. Heat energy respectively heat and power plant for the insertion of the regional of boilers go out a little money and you can build a boiler for a short time. Therefore, before the firs threat of the regionreferencesboilers. Before connecting the regions to the center of the electro they are a source of heat, and after connecting the regions to the center of the electric boilers are used to supplement the heat load. In the scheme¹1,simple contour image of regional boiler for heating water.

1 -unit proved; 2nd A Adsorbed; 3-Set the cooking water; 4- nutritional ad somber.

Figure1-a simple circuit design for heating water

 

In domestic boilers specifically sets the boiler for hot water or steam boilers with low pressure (1.2-2.4Pa).In operation, the gas is best used for heating the boiler water and when using fuel oil and solid fuels is best to use boilers with low pressure.Can be used for the technological needs in the form of a vapor and to heat water in a boiler water-pair .It is necessary to take into account when choosing a domestic boiler their best work, the complexity of using and expenditure money [2].

Of heat pipe to pipe adsorbed water return pipe to heat the comes water used.Pipelines adsorbing water driving by a heating boiler and heated by heat burning fuel(gas, solid fuel, fuel oil). To send heated water to the consumer, you need to send to the thermal conductivity.In this way, in boiler installing heated and cooled down the water in the heat sink leads to a constant work.In order to fill the space with a flow of water provides a potable water pipe.

   You can reduce fuel consumption through the use of solar energy in the boiler installation collector, and also will be less environmental and economic costs. (2-scheme)

1-boiler installation; 2-nd solar collector; 3-third-tank accumulator; 4-10th gate;

11-18-adsorbers. 

Figure2nddrawing -simple drawing application combining solar collector a for boiler installation

 

Burning fuel in the boiler installation:

 

                                                                      (1)

 

-profitable energy boiler

 

                                           (2)

 

GB - Water flow in the boiler, hã.â - The enthalpy of hot water from boiler, hõ.â - ent haply cold water in boiler [3].

If using the sun collector raise few degrees and heat the water temperature in the boiler in salvation that fuel economy exceeded by several times. ( 1- scheme)

 

1-scheme. Calculationfuel economy.

¹

tx.b. 0C

hx.b.

Qk.a

B, m3\c

B,m3\h

1

75

313,97

32799,47

0,984711

3544,96

2

80

334,94

30644,22

0,920006

3312,021

3

85

355,96

28483,83

0,855146

3078,526

4

90

376,98

26323,44

0,790287

2845,032

5

95

398,04

24158,94

0,725304

2611,093

6

100

416,1

22302,78

0,669578

2410,479

7

105

440,2

19825,83

0,595214

2142,772

8

110

461,34

17653,11

0,529985

1907,944

9

115

482,53

15475,25

0,4646

1672,562

10

120

503,7

13299,44

0,399278

1437,401

11

125

525

11110,28

0,333555

1200,796

12

130

546,4

8910,833

0,267522

963,0809

13

135

567,7

6721,667

0,201799

726,4763

14

140

589,1

4522,222

0,135767

488,7608

15

145

610,4

2333,056

0,070043

252,1561

16

150

633,1

0

0

0

 

Conclusion:  As we can see on the table if we use environmentally friendly sun energy to heat water consumers that the fuel consumption greatly reduced. Modern sun collector including sun collector bring the water temperature up to 20000C.

As mall boilers can heat thewaterto a temperature of1500C.

And sousing only the sun energy can achieve environmental and economic achievements.

 

Literatures

1.                 Lipov U.M., Samoilov U.F., Vilenskii T.V. The line-upand thethermal design ofthe steam boiler. – M.:Energoatomizdat. 1988

2. Esterkin R.I. Industrialboilers. – L.Energoatomizdat. 1985, Rivkin S.L., Aleksandrova A.A. Thermodynamic Properties ofWater and Steam.

3. Reference book.- M.:Energoatomizdat. 1984

4.Kharchenko N.V.In divi dual solar installation. M.:Energoatomizdat. 1991,210s