Energy, 2015, Vol.88, p.650(8)
To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.energy.2015.05.105 Byline: Elisa Venturini, Ivano Vassura, Cristian Zanetti, Andrea Pizzi, Giuseppe Toscano, Fabrizio Passarini Abstract: In order to evaluate non-steady phase contribution to the total emissions of a pellet stove in real domestic operations, particulate matter and gaseous emissions were determined separately for different operating conditions, i.e. ignition, partial load, increase in power and nominal load. TSP (Total suspended particulate) was sampled with a dilution system and characterized for TC (total carbon), PAHs (polycyclic aromatic hydrocarbons), the main soluble ions, Ni, As, Cd and Pb. Gas monitoring shows that CO and NO emission factors in ignition phase markedly differ from other operating conditions: NO emission factor is lower, while CO one is much higher, since it is a product of incomplete combustion. Start-up phase emission factors are also higher for TSP, Cd and other products of incomplete combustion, i.e. TC and PAHs. Despite being a non-steady phase, the increase in power phase emission factors appreciably differ from steady state ones only for PAHs. Moreover, the PAHs emitted in non-steady state phases have a higher toxicological burden. In conclusion, in order to evaluate the real impact of pellet stove on the environment, transient conditions should be taken into account. The ignition phase, even though it lasts only 20 min, can significantly contribute to pollutant emission. Author Affiliation: (a) University of Bologna, Interdepartmental Center for Industrial Research "Energy and Environment", Via Anghera 22, I-47900 Rimini, Italy (b) University of Bologna, Department of Industrial Chemistry "Toso Montanari", Viale Risorgimento 4, I-40146 Bologna, Italy (c) Polytechnic University of Marche, Department of Agricultural, Food and Enviromental Science (D3A), Via Brecce Bianche 10, I-60131 Ancona, Italy Article History: Received 31 March 2015; Revised 15 May 2015; Accepted 25 May 2015
Emissions (Pollution) – Analysis ; Polycyclic Aromatic Hydrocarbons – Analysis ; Air Pollution – Analysis
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