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Article << Previous     |     Next >>   Contents Vol 23(5)

Equilibrium moisture content and timelag of dead Pinus pinaster needles

Sérgio Lopes A E , Domingos Xavier Viegas B C , Luís Teixeira de Lemos A D and Maria Teresa Viegas B

A Environment Department, Technology and Management School of Viseu, Polytechnic Institute of Viseu, Campus Politécnico de Repeses, PT-3504-510 Viseu, Portugal.
B ADAI/LAETA, Associação para o Desenvolvimento da Aerodinâmica Industrial, Rua Pedro Hispano, 12, PT-3030-289 Coimbra, Portugal.
C Department of Mechanical Engineering, University of Coimbra, Rua Luis Reis dos Santos, PT-3030-788 Coimbra, Portugal.
D CI&DETS, Centro de Estudos em Educação, Tecnologia e Saúde, Avenida Coronel José Maria Vale de Andrade, Repeses, PT-3504-510 Viseu, Portugal.
E Corresponding author. Email: slopes@estgv.ipv.pt

International Journal of Wildland Fire 23(5) 721-732 http://dx.doi.org/10.1071/WF13084
Submitted: 23 May 2013  Accepted: 3 March 2014   Published: 19 June 2014


 
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Abstract

Modelling adsorption and desorption processes and equilibrium moisture content of dead fine fuels below fibre saturation is required to provide an accurate prediction of their drying and wetting processes within the range where flammability increases rapidly with decreasing moisture content. Data from laboratory tests on sorption processes and equilibrium moisture content isotherms of dead Pinus pinaster (Ait.) needles were used to evaluate several models applicable to fine forest fuels and agricultural and food products. Laboratory and field data were used to assess model accuracy in predicting drying and wetting curves and equilibrium moisture content isotherms showing a medium to high predictive ability for almost all cases. The best fitting combinations were obtained with the application of agricultural and food products models for drying and wetting phases and fine forest fuel models for equilibrium moisture content determination.

Additional keywords: dead fuels, fuel moisture content, sorption, timelag.


References

Anderson HE (1985) Moisture and fine forest fuel response. In ‘Proceedings of the 8th Conference on Fire and Forest Meteorology’, 29 April–2 May 1985, Detroit, MI. (Eds LR Donoghue, RE Martin), pp. 192–199. (Society of American Foresters: Bethesda, MD)

Anderson HE (1990) Predicting equilibrium moisture content of some foliar forest litter in the northern Rocky Mountains. USDA Forest Service, Intermountain Forest and Range Experiment Station, Research Paper INT-429. (Ogden, UT)

Anderson HE, Schuette RD, Mutch RW (1978) Timelag and equilibrium moisture content of Ponderosa pine needles. USDA Forest Service, Intermountain Forest and Range Experiment Station, Research Paper INT-202. (Ogden, UT)

ASABE (1999) Moisture relationships of plant-based agricultural products. In ‘ASAE Standards 1999’, ASAE D245.5 OCT95, pp. 512–528. (American Society of Agricultural and Biological Engineers: St Joseph, MI)

Avramidis S (1989) Evaluation of ‘three-variable’ models for the prediction of equilibrium moisture content in wood. Wood Science and Technology 23, 251–257.
CrossRef |

Blackmarr WH (1971) Equilibrium moisture content of common fine fuels found in south eastern forests. USDA Forest Service, Southeastern Forest Experiment Station, Research Paper SE-74. (Asheville, NC)

Blackmarr WH (1972) Moisture content influences, ignitability of slash pine litter. USDA Forest Service, Southeastern Forest Experiment Station, Research Note SE-173. (Asheville, NC)

Britton CM, Countryman CM, Wright HA, Walvekar AG (1973) The effect of humidity, air temperature, and wind speed on fine fuel moisture content. Fire Technology 9, 46–55.
CrossRef |

Byram GM (1963) An analysis of the drying process in forest fuel material. USDA Forest Service, Fire Sciences Laboratory, Rocky Mountain Research Station, Report. (Missoula, MT)

Carslaw HS, Jaeger JC (1959) ‘Conduction of Heat in Solids’, 2nd edn. (Oxford University Press: New York)

Catchpole EA, Catchpole WR, Viney NR, McCaw WL, Marsden-Smedley JB (2001) Estimating fuel response time and predicting fuel moisture content from field data. International Journal of Wildland Fire 10, 215–222.
CrossRef |

Chen CC (1990) Modification of Oswin EMC/ERH equation. Chinese Agricultural Research 39, 367–376.

Chuvieco E, Aguado I, Dimitrakopoulos AP (2004) Conversion of fuel moisture values to ignition potential for integrated fire danger assessment. Canadian Journal of Forest Research 34, 2284–2293.
CrossRef |

Dąbrowski A (2001) Adsorption – from theory to practice. Advances in Colloid and Interface Science 93, 135–224.
CrossRef | PubMed |

Dimitrakopoulos AP, Papaioannou KK (2001) Flammability assessment of Mediterranean forest fuels. Fire Technology 37, 143–152.
CrossRef |

Erbay Z, Icier F (2010) A review of thin layer drying of foods: theory, modelling, and experimental results. Critical Reviews in Food Science and Nutrition 50, 441–464.
CrossRef | PubMed |

Henderson SM (1974) Progress in developing the thin layer drying equation. Transactions of the ASAE. American Society of Agricultural Engineers 17, 1167–1168.
CrossRef |

Henderson SM, Pabis S (1961) Grain drying theory I: temperature effect on drying coefficient. Journal of Agricultural Engineering Research 6, 169–174.

Iglesias HA, Chirife J (1976) Prediction of the effect of temperature on water sorption isotherms of food materials. Journal of Food Technology 11, 109–116.
CrossRef |

Incropera FP, Lavine AS, DeWitt DP (2011) ‘Fundamentals of Heat and Mass Transfer.’ (Wiley: Hoboken, NJ)

Jayas DS, Cenkowski S, Pabis S, Muir WE (1991) Review of thin-layer drying and wetting equations. Drying Technology 9, 551–588.
CrossRef |

Karathanos VT (1999) Determination of water content of dried fruits by drying kinetics. Journal of Food Engineering 39, 337–344.
CrossRef |

Kreye JK, Morgan VJ, Knapp EE (2012) Moisture desorption in mechanically masticated fuels: effects of particle fracturing and fuelbed compaction. International Journal of Wildland Fire 21, 894–904.
CrossRef |

Lewis WK (1921) The rate of drying of solid materials. Journal of Industrial and Engineering Chemistry 13, 427–432.
CrossRef | CAS |

Matthews S (2006) A process-based model of fine fuel moisture. International Journal of Wildland Fire 15, 155–168.
CrossRef |

Matthews S (2014) Dead fuel moisture research: 1991–2012. International Journal of Wildland Fire 23, 78–92.
CrossRef |

Matthews S, Gould J, McCaw L (2010) Simple models for predicting dead fuel moisture in eucalyptus forests. International Journal of Wildland Fire 19, 459–467.
CrossRef |

Millett RS (1951) ‘The Seasoning of Lumber’. (Canada Department of Resources and Development, Forestry Branch, Forest Products Laboratories Division: Ottawa, ON)

Nelson RM (1969) Some factors affecting the moisture timelags of woody materials. USDA Forest Service, Southeastern Forest Experiment Station, Research Paper SE-44. (Asheville, NC)

Nelson RM (1984) A method for describing equilibrium moisture content of forest fuels. Canadian Journal of Forest Research 14, 597–600.
CrossRef |

Nelson RM (2000) Prediction of diurnal change in 10-h fuel stick moisture content. Canadian Journal of Forest Research 30, 1071–1087.
CrossRef |

Nelson RM, Hiers JK (2008) The influence of fuelbed properties on moisture drying rates and timelags of longleaf pine litter. Canadian Journal of Forest Research 38, 2394–2404.
CrossRef |

Page GE (1949) Factors influencing the maximum rate of air drying shelled corn in thin-layers. MSc thesis, Purdue University, West Lafayette, IN.

Pfost HB, Maurer SG, Chung DS, Milliken GA (1976) Summarizing and reporting equilibrium moisture data for grains, ASAE paper number 76–3520. (St Joseph, MI)

Phanphanich M, Mani S (2010) Drying characteristics of pine forest residues. BioResources 5, 108–120.

Rothermel RC (1972) A mathematical model for predicting fire spread in wildland fuels. USDA Forest Service, Intermountain Forest and Range Experiment Station, Research Paper INT-115. (Ogden, UT)

Ruiz González AD, Vega Hidalgo JA, Álvarez González JG (2009) Construction of empirical models for predicting Pinus sp. dead fine fuel moisture in NW Spain. I. Response to changes in temperature and relative humidity. International Journal of Wildland Fire 18, 71–83.
CrossRef |

Schunk C, Leutner C, Leuchner M, Wastl C, Menzel A (2013) Equilibrium moisture content of dead fine fuels of selected central European tree species. International Journal of Wildland Fire 22, 797–809.
CrossRef |

Sharples JJ, McRae RHD (2011) Evaluation of a very simple model for predicting the moisture content of eucalypt litter. International Journal of Wildland Fire 20, 1000–1005.
CrossRef |

Simard AJ (1968) The moisture content of forest fuels – I: a review of the basic concepts. Canadian Department of Forest and Rural Development, Forest Fire Research Institute, Information Report. FF-X-14, Ottawa, ON

Thompson TL, Peart RM, Foster GH (1968) Mathematical simulation of corn drying – a new model. Transactions of the ASAE. American Society of Agricultural Engineers 11, 0582–0586.
CrossRef |

USDA Forest Service (1955) Wood handbook, USDA Forest Service, Forest Products Laboratory, Handbook 72. (Madison, WI)

Van Wagner CE (1969) Drying rates of some fine forest fuels. Fire Control Notes 12, 5, 7, 12.

Van Wagner CE (1972) Equilibrium moisture contents of some fine forest fuels in eastern Canada. Canadian Forestry Service, Petawawa Forest Experimental Station, Information Report PS.X-36 (Chalk River, ON)

Van Wagner CE (1974) Structure of the Canadian Forest Fire Weather Index. Canadian Forestry Service, Petawawa Forest Experimental Station, Publication 1333 (Chalk River, ON)

Van Wagner CE (1977) A method of computing fine fuel moisture content throughout the diurnal cycle. Canadian Forestry Service, Petawawa Forest Experimental Station, Information Report PS-X-69 (Chalk River, ON)

Van Wagner CE (1979) A laboratory study of weather effects on the drying rate of jack pine litter. Canadian Journal of Forest Research 9, 267–275.
CrossRef |

Van Wagner CE (1982) Initial moisture content and the exponential drying process. Canadian Journal of Forest Research 12, 90–92.
CrossRef |

Van Wagner CE (1987) Development and Structure of the Canadian Forest Fire Weather Index System. Canadian Forestry Service, Petawawa National Forestry Institute, Forestry Technical Report 35 (Chalk River, ON)

Van Wagner CE, Pickett TL (1975) Equations and fortran IV program for the 1976 metric version of the Forest Fire Weather Index. Canadian Forestry Service, Petawawa Forest Experimental Station, Information Report PS-X-58 (Chalk River, ON)

Van Wagner CE, Pickett TL (1985) Equations and FORTRAN program for the Canadian Forest Fire Weather Index System. Canadian Forestry Service, Petawawa Forest Experimental Station, Forestry Technical Report 33 (Chalk River, ON)

Viegas DX, Viegas MT, Ferreira AD (1992) Moisture content of fine forest fuels and fire occurrence in central Portugal. International Journal of Wildland Fire 2, 69–86.
CrossRef |

Weise DR (2007) Determination of equilibrium moisture content for several fine fuels in Hawaii. In ‘Seventh Symposium on Fire and Forest Meteorology’, 23–25 October 2007, Bar Harbor, ME. (American Meteorological Society) Available at https://ams.confex.com/ams/pdfpapers/126507.pdf [Verified 24 March 2014]

Zuritz C, Singh RP, Moini SM, Henderson SM (1979) Desorption isotherms of rough rice from 10°C to 40°C. Transactions of the ASAE. American Society of Agricultural Engineers 22, 0433–0436.
CrossRef |


   
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