REDUCTION OF CARBON MONOXIDE EMISSION FROM A SOLID-FUEL THERMO-ACCUMULATION FURNACE

Abstract

Many households in Serbia, using electric thermo-accumulation furnaces for heating, have been forced to find an alternative solution, due to a significant increase in electricity prices during the last decade. A possible solution is replacing electric heating appliances with the solid fuel-fired ones. A prototype of a new concept of thermo-accumulation solid fuel-fired furnace has been developed to meet these growing needs, providing electricity saving together with considerable environmental benefits. Two strategies for reduction of carbon monoxide emission are examined in the paper: application of Pt/Al2O3 catalyst, in the form of 3±0.3 mm spheres, providing further combustion of flue gases within the furnace, as well as an additional emission reduction by means of the air excess control. Experimental investigations of the catalyst influence on the conversion of carbon monoxide have been done for different operation regimes and positions of the catalyst. The paper presents selected results regarding carbon monoxide emission during wood and coal combustion. Investigations suggest a considerable effect of the catalyst and a strong influence of the catalyst position within the furnace to carbon monoxide emission reduction. In addition, experimental tests have been conducted to asses the effect of the air excess control in the furnace on carbon monoxide emission. The amount of combustion air, the flue gas flow rate and the fuel feeding regime have been adjusted in order to keep the flue gas oxygen content in a relatively narrow range, thus obtaining controlled combustion conditions and lower carbon monoxide emission. In this way, the furnace has been made able to respond to the changes in heating needs, fuel quality and other parameters, which is advantageous in comparison with similar solid-fuel fired furnaces.

Keywords

Dates

  • Submission Date2006-11-03
  • Revision Date2006-11-15
  • Acceptance Date2006-12-01

References

  1. Jaber, J. O., Prospects of Energy Savings in Residential Space Heating, Energy and Buildings, 34 (2002), pp. 311-319
  2. Training Programme on Financial Engineering, Norwegian-Serbian Energy Efficiency Co-operation, Chapter 4 - Environmental Benefits, Manual prepared by the Norwegian Energy Efficiency Group (NEEG), Serbia 2002-2003
  3. Edwards, R. D., Smith, K. R., Zhang, J., Ma, Y., Implications of Changes in Household Stoves and Fuel Use in China, Energy Policy, 32 (2004), 3, pp. 395-411
  4. Zhang, J., Smith, K. R., Ma, Y., Ye, S., Jiang, F., Qi, W., Liu, P., Khalil, M. A. K., Rasmussen, R. A., Thorneloe, S. A., Greenhouse Gases and other Airborne Pollutants from Household Stoves in China: a Database for Emission Factors, Atmospheric Environment, 34 (2000), 26, pp. 4537-4549
  5. Edwards, R. D., Smith, K. R., Zhang, J., Ma, Y., Models to Predict Emissions of Health-Damaging Pollutants and Global Warming Contributions of Residential Fuel/Stove Combinations in China, Chemosphere, 50 (2003), 2, pp. 201-215
  6. Still, D., Kness, J., Billetsen, B., Cox, G., Espenan, M., Nael, J. B., Nicholas, D., Subramanian, M., Zettler, D. F., Fuel Efficient Wood Stoves and Hayboxes: Efficiency of Combustion, Operator Expertize and Heat Transfer Efficiency, Fuel Efficient Wood Stove Research, http://www.efn.org/~apro/AT/stove96.html, July 3, 1996, 7/17/03, pp. 1-5
  7. Dakic, D., Ilic, S., Movable Thermo-accumulating Solid Fuel Stove, Patent no. P-146/00, 9th March 2000, protected in the Federal Institution for Intellectual Property, Serbia
  8. Belosevic, S., Paprika, M., Komatina, M., Stevanovic, Z., Mladenovic, R., Oka, N., Dakic, D., Experimental and Numerical Investigation of Heat Exchanger Built in Solid Fuel Household Furnace of an Original Concept, Energy and Buildings, 37 (2005), 19-20, pp. 325-331
  9. Eric, A., Paprika, M., Mladenovic, R., Oka, N., Belosevic, S., Dakic, D., A New Approach to the Development of High-Efficiency Solid Fuel-Fired Thermo-Accumulation Furnace for Households (in Serbian), KGH (Scientific-technical journal for air-conditioning, heating and cooling), 34 (2005), 1, pp. 43-47,
  10. Dakic, D., Mladenovic, R., Paprika, M., Oka, N., Belosevic, S., Repic, B., Grubor, B., Influence of Design Solutions on Increasing Efficiency and Lowering Environmental Pollution of Solid Fuel-Fired Household Furnaces (in Serbian), Book of abstracts, 11th Symposium of Thermal Engineers of Serbia and Montenegro, Zlatibor, Serbia, October 1-4, 2003, pp. 6-7
  11. Whole House Comfort System, Meyer Manufacturing Corporation, http://www.meyermfg.com/woodchuck.html, 7/22/03, pp. 1-4
  12. Recknagel, E., Sprenger, Hönmann, Taschenbuch für Heizung und Klimatechnik (in German), 63. Ausgabe, R. Oldenbourg Verlag, München, 1985
  13. Recknagel, E., Sprenger, Hönmann, Heating and Climatization (in Serbian), Interklima, Vrnjacka Banja, 2002
  14. Todorovic, B., The Design of Central Heating Systems (in Serbian), Faculty of Mechanical Engineering, University of Belgrade, 2000
  15. Mladenovic, R., Dakic, D., Paprika, M., Eric, A., Djurovic, D., Belosevic, D., Testing of the Thermo-accumulation Solid Fuel (Wood Biomass) Fired Furnace – the Influence of Catalyst on Efficiency and CO Emission (in Serbian), Report NIV-ITE-288, Institute of Nuclear Sciences "Vinca" – Belgrade, March 2005
  16. Dakic, D., Belosevic, S., Cvetinovic, D., Paprika, M, Mladenovic, R., Oka, R., Testing of the Thermo-accumulating Solid Fuel Furnace (Version with the Heat Exchanger) (in Serbian), Report NIV-ITE-265, Institute of Nuclear Sciences "Vinca" - Belgrade, February 2004
  17. European Standard EN 12815: Residential Cookers Fired by Solid Fuel – Requirements and Test Methods, European Committee for Standardization, June 2001
  18. Radic, N., Grbic, B., Terlecki-Baricevic, A., Kinetics of Deep Oxidation of n-Hexane and Toluene over Pt/Al2O3 Catalysts: Platinum Crystallite Size Effect, Applied Catalysis B: Environmental, 50 (2004), 3, pp. 153-159
  19. Stefanov, P., Avramova, I., Stoichev, D., Radic, N., Grbic, G., Marinova, Ts., Characterization and Catalytic Activity of Cu–Co Spinel Thin Films Catalysts, Applied Surface Science, 245 (2005), 1-4, pp. 65-72
  20. Mladenovic, R., Belosevic, S., Dakic, D., Paprika, M., Eric, A., Djurovic, D., Influence of an Installed Catalyst on Carbon Monoxide Emission Reduction in a Solid Fuel-Fired Thermo-Accumulating Furnace, Proceedings, 5th Jubilee Symposium of South East European Countries (SEEC): Transport Phenomena in Science and Technology – 2005, Vol. 2, J. Hristov (Ed.), Sunny Beach, Bulgaria, 10-15 September 2005, pp. 199-212
  21. Mladenovic, R., Belosevic, S., Dakic, D., Paprika, M., Eric, A., Djurovic, D., Possibilities for Control of a Thermo-accumulating Solid Fuel-Fired Furnace, Proceedings, 5th Jubilee Symposium of South East European Countries (SEEC): Transport Phenomena in Science and Technology – 2005, Vol. 2, J. Hristov (Ed.), Sunny Beach, Bulgaria, 10-15 September 2005, pp. 213-222
Volume 10, Issue 4, Pages107 -119