Elaborated:
Ph. D. Attila Meggyes
Budapest, 6-th August 1996.
1./ Introduction.
Mr Allan Inovius President of the CCB /Complete Combustion BureauSweden/Hungary AB/ asked us for the studding effect CCR NOCO-reactordeveloped and invented by them on the efficiency and exhaust gasemission of small size boiler.
2.1 Data of the boiler under measurement and the measureddata.
| The measured boiler: |
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| CCR NOCO EUROPE BOILER |
| Oil burner: |
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| OIL N 10 B |
| CCR NOCO-reactor: |
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| Type 240/2 |
| Nozzle of oil atomiser: |
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| 0.5 G/h 60° H |
Annex I. contains the measuring points on thedevice and the result of them.
3./ Results of calculations.
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| The calculated characters based on the measured results: |
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| Exhaust gas losses | = 5,35 % |
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| Losses of radiation and heat transfer | = 1,3 % |
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| Losses of unburned fuel | = 0 % |
Direct efficiency:
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| Heat flux of the input fuel | = 17479,3 W |
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| Heat flux of the input air | = 163,351 W |
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| Effective head flux of water | = 16347,9 W |
Emission values related to 3% 02
| NOx | = 91,32 ppm | |||||
| NO | = 88,31 ppm | |||||
| CO | = 22,38 ppm | |||||
| Soot | Å 0 mg/m3 | |||||
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NO/NOx ratio andNO2/NOx ratio
| NOx | = 96,7 % |
| NOx | = 3,3 % |
Excess air coefficients
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| 20,9 - O2 | = 1,1754 - |
The above values are calculated on average.
4./ Summary, conclusions
Following statements can be taken for the small size boilerprovided with CCR NOCO-reactor based on the measured result and thecalculation.
1./ Both direct and the indirect boiler efficiencies are veryadvantages /more then 92 %/ that can be realised primary by the lowexhaust gas temperature.
2./ The CO emission and the soot emission are also of veryadvantages.
3./ The air excess change /O2 content/ is of loweradvantages in the area of fluctuation. At a given adjustment theO2 emission was between 2,92/3,4 V%.
4./ We propose -to achieve lower air excess /without COrespectively soot emission increase/ and the decrease the air excessfluctuation- further development for the adaptation of the burnerwith CCR NOCO-reactor respectively the complementation of CCR NOCO-reactorwith deflector.
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| Ambient air: |
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| temperature: | ta | = 22,98 °C | |||||||||||||||||||||
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| pressure: | pa | = 101*103 Pa | |||||||||||||||||||||
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| humidity: |
| = 70 % | |||||||||||||||||||||
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| Water: |
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| inlet temp.: | twi | = 21,2 °C | |||||||||||||||||||||
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| outlet temp.: | tWO | = 54,25 °C | |||||||||||||||||||||
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| mass flow: | mv | = 0,1173 kg/sec | |||||||||||||||||||||
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| Fuel: |
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| pressure: | pf | = 7 bar | |||||||||||||||||||||
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| temperature: | tf | = 20,5 °C | |||||||||||||||||||||
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| mass flow: | mf | = 1,4964 kg/h | |||||||||||||||||||||
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| spec. heat value: | Hi | = 42000 kJ/kg | |||||||||||||||||||||
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| Exhaust gas: |
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| temperature: | texh | = 120,0 °C | |||||||||||||||||||||
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| Measured exhaust gas components:
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The above values are average values in stationary condition.
Place of the measuring points are on Fig. 1.
The boiler was not connected to chimney.

1. fig.: The test rig
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