TY - JOUR
TI - Impact of fuel quality and burner capacity on the performance of wood pellet stove
AU - Petrović Bećirović Sanja B
AU - Manić Nebojša G
AU - Stojiljković Dragoslava D
JN - Thermal Science
PY - 2015
VL - 19
IS - 5
SP - 1855
EP - 1866
PT - Article
AB - Pellet stoves may play an important role in Serbia in the future when fossil  fuel fired conventional heating appliances are replaced by more efficient and  environmentally friendly devices. Experimental investigation was conducted in  order to examine the influence of wood pellet quality, as well as burner  capacity (6, 8 and 10 kW), used in the same stove configuration, on the  performance of pellet stove with declared nameplate capacity of 8 kW. The  results obtained showed that in case of nominal load and combustion of  pellets recommended by the stove manufacturer, stove efficiency of 80.03% was  achieved. The use of lower quality pellet caused additional 1.13 kW reduction  in heat output in case of nominal load and 0.63 kW in case of reduced load.  This was attributed to less favourable properties and lower bulk and particle  density of lower quality pellet. The use of different burner capacity has  shown to have little effect on heat output and efficiency of the stove when  pre-set values in the control system of the stove were not altered. It is  concluded that replacement of the burner only is not sufficient to  increase/decrease the declared capacity of the same stove configuration,  meaning that additional measures are necessary. These measures include a new  set up of the stove control system, which needs to be properly adjusted for  each alteration in stove configuration. Without the adjustment mentioned,  declared capacity of the stove cannot be altered, while its CO emission shall  be considerably increased.