Presentation is loading. Please wait.

Presentation is loading. Please wait.

Pannon Power – Biomass Power Plant project combustion flow measurement using a diff.pressure Pitot tube and a unique calibration method Manninger Gusztav.

Similar presentations


Presentation on theme: "Pannon Power – Biomass Power Plant project combustion flow measurement using a diff.pressure Pitot tube and a unique calibration method Manninger Gusztav."— Presentation transcript:

1 Pannon Power – Biomass Power Plant project combustion flow measurement using a diff.pressure Pitot tube and a unique calibration method Manninger Gusztav Flowell Kft.

2 Project, measuring method intorduction Measuring problem Calibration method Technical Solution Possibilities Results

3 35 MW-capacity – biomass 100% green energy for the total central heating demand of city PÉCS

4

5

6

7

8

9

10 Venturi details:

11 Old Power station building – new plant – fixed isometric There can not be measured any flow ! – there are no straight pipe lines –But there are valves just ahead of the measuring points –And we have elbows…….which should avoid ! look at the isometric: What’s the problem ?

12 Measuring principle Overvie

13 Flow rate measurement with a probe by the principle of differential pressure method Evaluation with the Microprocessor Unit D-FL (optional) Adjustable parameters Load-independent current for line recorder and indicator instrument Overview

14 stack diameter 0.3 to 8 m (Probe I: 0.3 to 2 m, Probe II: 2 to 4 m; Probe III: 4 to 8 m) minimum gas velocity 3 m/s for gases above dew point temperatures up to 400°C / stainless steel temperatures up to 700°C / Inconel 600 special materials for acid gases / Hastelloy C276 accuracy guaranteed better than ±2% according to VDI 2066 transmitter mountable on the probe or separately cross-over cock for zero-point control and backflow purging long maintenance intervals > 3 month dust loads up to 150 mg/nm3 without automatic purging systems microprocessor evaluation unit for temperature and absolute pressure compensation very robust system transmitters are factory calibrated easy to install DFL100 aplicable:

15 Density nn standard density under standard conditions PnPn standard pressure = 1,013 x 105 Pa P operating pressure in Pa TnTn standard temperature = 0°C T operating temperature in °C Volume Flow Standard Volume Flow

16 Accuracy… 

17 Low flow, huge diameter, looking for the cheepest solution – as it used to be No ultrasonic possibilities just because the very low pressure No more dp loss is allowed Short delivery time THE ONLY POSSIBILITY A DP MEASURING NO CHANCE FOR VENTURI AVERAGING PITOT TUBE - WITH AN UNIQUE CALIBRATION MADE BY Possibilities

18 There is a VENTURI master meter in a common pipe line –d=1000 mm –D=2000 mm –L=11873 mm All the 6 pcs. of DURAG DFL100 probe can be easily blindid Different flowrates – fast response Small type of shut off valves – for blinding all the 6 DFL100 Measuring points with opening/closing pipe sections – calibrating to the master meter, and to thouse probes which are installed perfectly 3 probes are percfectly installed 3 probes had no space for the right installation Calibration method

19 QventABCDEFdP VentureNm³/h VentSzelep nyitva 45% F % E % D % C % B A0 0 70% % % % % % % % % Some resoults at different flow rates……

20 00,062,400,063,5 13,361,713,363,1 26,760,626,762,4 310,059,0310,061,3 413,357,0413,359,7 516,754,5516,757,8 620,051,5620,055,5 723,348,2723,352,7 826,744,3826,749,6 930,040,0930,046,0 1033,335,21033,342,0 1136,730,01136,737,7 1240,024,41240,032,9 1343,318,21343,327,7 1446,711,71446,722,2 1550,04,61550,016,2

21 Some more……at different operating points

22 Some resoults at different flow rates……

23 Calibration curves

24

25

26 Thank you !


Download ppt "Pannon Power – Biomass Power Plant project combustion flow measurement using a diff.pressure Pitot tube and a unique calibration method Manninger Gusztav."

Similar presentations


Ads by Google