Pellets Evaluation Made from Tropical-Climate Agricultural and Forestry Crops of Costa Rica with a Domestic Stove

AbstractPropose The present study shows the results of the evaluation of the pellets made from two forestry crops and eight agricultural crops in Costa Rica by employing a 50 kW domestic stove.MethodsThe following variables were evaluated: flame outlet and flue gas temperatures and emissions (CO2, CO, NO, NO2, NOx and SO2).ResultsIt was found that the pellet consumption varies from 2.5 to 3.4 kg/h, where the former corresponds to Tectona grandis and the latter to the mesocarp oil palm fruit. Flame outlet temperature varied from 400 to 623 °C and flue gas temperature varied from 205 to 322 °C, where the lowest temperature corresponds to Phyllostachys aurea and the highest to the oil palm residue. T. grandis showed the highest variation in temperature, while Cupressus lusitanica showed the lowest variation. A result that stands out in the measurement of emissions is that the two forestry crops show the lowest values.ConclusionsDifferent type of pellet produces different behaviour in domestic stove. Gynerium sagittatum and C. lusitanica were with greater heat generation and Pennisetum purpureum and T. grandis with the lowest heat generation.

[1]  Robert Bailis,et al.  Potential greenhouse gas benefits of transatlantic wood pellet trade , 2014 .

[2]  Thomas Knoke,et al.  Economic evaluation of short rotation coppice systems for energy from biomass—A review , 2014 .

[3]  R. .. Morey,et al.  Factors affecting strength and durability of densified biomass products. , 2009 .

[4]  Guk-Rwang Won.  American Society for Testing and Materials , 1987 .

[5]  Magnus Ståhl,et al.  Swedish perspective on wood fuel pellets for household heating: A modified standard for pellets could reduce end-user problems , 2009 .

[6]  R. Moya,et al.  Fuelwood characteristics and its relation with extractives and chemical properties of ten fast-growth species in Costa Rica. , 2013 .

[7]  R. Moya,et al.  Application of the X-ray densitometry in the evaluation of the quality and mechanical properties of biomass pellets , 2015 .

[8]  Jeonghwan Lee,et al.  Experimental Study on the Dissociation Behavior and Productivity of Gas Hydrate by Brine Injection Scheme in Porous Rock , 2010 .

[9]  S. Bringezu.  Carbon Recycling for Renewable Materials and Energy Supply , 2014 .

[10]  Walter Haslinger,et al.  Performance of a pellet boiler fired with agricultural fuels , 2013 .

[11]  V. K. Verma,et al.  Agro-pellets for domestic heating boilers: Standard laboratory and real life performance , 2012 .

[12]  Mejdi Jeguirim,et al.  Gaseous products and particulate matter emissions of biomass residential boiler fired with spent coffee grounds pellets , 2013 .

[13]  John R. Grace,et al.  Biomass granular screw feeding: An experimental investigation , 2011 .

[14]  Stellan Marklund,et al.  Emission of PCDD/F, PCB, and HCB from combustion of firewood and pellets in residential stoves and boilers. , 2006, Environmental Science and Technology.

[15]  S. Searle,et al.  Will energy crop yields meet expectations , 2014 .

[16]  R. Moya,et al.  Quality of Pellets Made from Agricultural and Forestry Crops in Costa Rican Tropical Climates , 2014 .

[17]  Eliseu Monteiro,et al.  Portuguese pellets market: Analysis of the production and utilization constrains , 2012 .

[18]  Young-Kwon Park,et al.  Assessment of wood pellet combustion in a domestic stove , 2011 .

[19]  Montserrat Zamorano,et al.  Relationship between fuel quality and gaseous and particulate matter emissions in a domestic pellet-fired boiler , 2014 .

[20]  I. Obernberger,et al.  Physical characterisation and chemical composition of densified biomass fuels with regard to their combustion behaviour , 2004 .

[21]  Ronald W. Thring,et al.  Ash Management Review—Applications of Biomass Bottom Ash , 2012 .

[22]  M. Rabaçal,et al.  Combustion and emission characteristics of a domestic boiler fired with pellets of pine, industrial wood wastes and peach stones , 2013 .

[23]  Dan Boström,et al.  Slagging Characteristics during Combustion of Woody Biomass Pellets Made from a Range of Different Forestry Assortments , 2010 .

[24]  A. Purohit,et al.  FUELWOOD VALUE INDEX OF INDIAN MOUNTAIN TREE SPECIES , 1987 .

[25]  P. Lehtikangas.  Quality properties of pelletised sawdust, logging residues and bark , 2001 .

[26]  Viktor Popov,et al.  A review of European standards for pellet quality , 2011 .

[27]  A. Faaij,et al.  Competing uses of biomass for energy and chemicals: implications for long‐term global CO2 mitigation potential , 2015 .

[28]  M. Öhman,et al.  Slagging tendencies of wood pellet ash during combustion in residential pellet burners , 2004 .

[29]  R. Moya,et al.  Physical, mechanical and hydration kinetics of particleboards manufactured with woody biomass (Cupressus lusitanica, Gmelina arborea, Tectona grandis), agricultural resources, and Tetra Pak packages , 2014, Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA.

[30]  R. Kataki,et al.  Fuelwood characteristics of indigenous tree species of north-east India. , 2002 .

[31]  Esa Vakkilainen,et al.  World's largest biofuel and pellet plants – geographic distribution, capacity share, and feedstock supply , 2014 .

[32]  E. Virmond,et al.  Valorization of agroindustrial solid residues and residues from biofuel production chains by thermochemical conversion: a review, citing Brazil as a case study , 2013 .

[33]  Khalid M. Saqr,et al.  Characteristics of biomass in flameless combustion: A review , 2014 .

[34]  B. Leckner,et al.  Emission characteristics of modern and old-type residential boilers fired with wood logs and wood pellets , 2004 .

[35]  Svend Bram,et al.  Residential pellet boilers in Belgium: Standard laboratory and real life performance with respect to European standard and quality labels , 2011 .

[36]  Peter McKendry,et al.  Energy production from biomass (Part 1): Overview of biomass. , 2002, Bioresource technology.