Acoustic Pyrometer for FEGT measurement in your boilers

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Bonnenberg+ Drescher

Projektentwicklung GmbH

Bonnenberg + DrescherProjektentwicklung GmbH

Industriepark Emil MayrischD – 52457 Aldenhoven

acoustic gas temperature measurement system agam

[email protected]@budi.deTelefon: 0049-(0)2464-5810Fax: 0049-(0)2464-58136



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C = speed of sound

T = “true" gas temperature

M = molecular weight

R = universal gas constant

æ = specific heat

T = 1000 °C C = 686 ±±±± ? m/s

TM

RC .

.æ=

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temperature = 1000 °c

speed of sound = 686 ±±±± ? m/s

CO2 = 18-14 Vol. %O2 = 2 - 6 Vol. %CO = 100-1000 mg/Nm3

H2O = 19-21 Vol. %dust = 10-15 g/Nm3

unaccuracy < 1,5 %

±±±± 5 m/sgas composition (lignite)

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acoustic gas temperature measurement system

TM

RC .

.æ=

4 Transceiver, 6 paths 8 Transceiver, 21 paths

6 Transceiver, 12 paths 8 Transceiver, 24 paths

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6



Transceiver unit

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transition cone

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Transceiver unit above SNCR

Transceiver unit below SNCR

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PCU

Außenansicht Innenansicht Rückwand

Innenansicht Tür

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PCU and evaluation unit (2 lines) (19“ rack)

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Evaluation unit(19“ rack)

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3 evaluation units (one 19“ rack)

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13Bi directional measurement of an acoustic path

wasteaux. Burner

(gas)

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15



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configuration at the furnace exit in 800 to 930 MWel.lignite with display of temperature results (isothermal

map and deviation from average in 4 zones),

furnace exit

100 m

OFA 3

OFA 2

OFA 1

burner level 2

burner level 1

30 m

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results of temperature balancing control in waste to energy (AZN Moerdijk)

600

700

800

900

1000

1100

120000:0

0

01:3

9

03:1

8

04:5

8

06:3

7

08:1

6

09:5

5

11:3

4

13:1

2

14:4

7

16:1

5

17:0

1

17:4

6

18:3

0

19:1

4

19:5

8

20:4

2

21:2

6

22:1

0

22:5

6

23:4

1

time

tem

pera

ture

in

°C

without agam control with agam control

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temperature differences between front and rear wall in a hard coal furnace

Backwall

Frontwall

∆T

in

K

12

3

4

65

7

8

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Bonnenberg + DrescherProjektentwicklung GmbH

Industriepark Emil MayrischD – 52457 Aldenhoven

acoustic gas temperature measurement system agam

Your Local Contact:Hitech Systems & Services LtdWhite House 119,Park StreetKolkata-700016 IndiaTel;91-11-22290045 Fax;91-11-22291264E-mail: [email protected]:www.hitech.in



Technology

Acoustic Pyrometer for FEGT measurement in your boilers