Dissertation > Excellent graduate degree dissertation topics show

Study on Fire Behavior of Fuelbed of Korean Pine Needles under No-wind and Zero-slope Conditions

Author: LiuZuoZuo
Tutor: JinSen
School: Northeast Forestry University
Course: Ecology
Keywords: Fire behavior Rate of spreed Flame height Residence time Fireline intensity Reaction efficiency Fuel moisrure Fuel bed depth Packing ratio Korean pine
CLC: S762
Type: Master's thesis
Year: 2011
Downloads: 30
Quote: 0
Read: Download Dissertation

Abstract


The forecast of fire behavior is the major theme of forest fire danger forecasting, and the key to prevent the forest fire. Especially the research of the rates of spreed is the important content of the fire science, need more fire experiments field and indoor, model imitate to announce the regularity of forest fire behavior. This paper used Korean pine needles collected from Korean pine plantations were constructed with varied fuel moisture, loading and depth. Totally 100 experimental fires with these fuelbeds were burned inside laboratory under no wind and zero-slope conditions.The results indicate that rates of spread of fuelbeds of Korean pine needles are slower than 0.4 m·min-1, flame height are slower than 69.3cm, residence time are slower than 0.82min, reaction efficiency are slower than 0.79, fireline intensity slower than 386.57Kw·m-1.Fuel moisture, fuelbed depth and packing ratio significantly influence fire spread. The effect of fuel moisture on fire spread is not affected by fuelbed depth and loading while those of fuelbed depth and packing ratio on rate of spread might be influenced by other fuelbed characteristics.Fuel loading is not significantly influence fire spread.Fuel moisture, fuelbed depth and packing ratio significantly influence flame height, The effect of fuel moisture on fire flame is not affected by fuelbed depth and loading while those of fuelbed depth and packing ratio on fire flame might be influenced by other fuelbed characteristics.The effect of fuel bed depth on fire flame is not affected by fuel moisture and loading, the flame height is influence by rates of spread.Fuel moistur significantly influence residence time, fule loading fuel bed depth and packing ratio on residence time might be influenced by other fuelbed characteristics, the residence time is influenced by rate of spread.Fuel moisture loading fuel bed depth and packing ratio significantly influence reaction efficiency. The effect of fuel moisture on reaction efficiency is not affected by fuel moisture and loading while those of fuel moisture and loading on reaction efficiency might be influenced by other fuelbed characteristics, the reaction efficiency is influenced by rate of spread、fire flame and residence time. Fuel loading and packing ratio is not influence fireline intensity.The effect of fuel moisture on fireline intensity is not affected by fuel bed depth and loading while those of fuel bed depth and packing ratio on fireline intensity might be influenced by other fuelbed characteristics, the fireline intensity is influenced by flame height.Used the fuel moisture、fuelbed depth and loading to build model, the effect of the rate of spread、fire flame、residence time and reaction efficiency addition model is better, the effect of fireline intensity multiplication model is better.

Related Dissertations

  1. Study on the Effect of Calcium Sulfate on Coal Ash Fusion Temperature,TQ533
  2. Cold and Hot State Experimental Studies of Rotary Kilns and Numerical Simulation of Petroleum Coke Calcinations,TQ127.11
  3. Coupling Effects Between Water and Fertilizers on Fine Root Morphology in Korean Pine、lanch Plantation,S791
  4. The Effects of Light Transmittance Felling on Structure and Productivity of Korean Pine Plantation Communities with Broad-leaved Mixed Species in Maoershan Regions,S718.5
  5. Studies on Tiopronin in Situ Gel for Ophthalmic Use,R94
  6. Nitrendipine gastric floating sustained release microspheres,R94
  7. The Hydrodynamic Characteristic Experiment and Flow Field Simulation Research of Anaerobic Baffled Reactor,X703
  8. Study on Anti-Fouling Performance in the Chaotic Fins Channel,TQ051.5
  9. The Research on Fire Behavior of Restrained Steel H-column,TU391
  10. Analysis of Molelecular Natural Pinus Koraiensis Based on nad5 Mitochondrial DNA Sequence,Q948
  11. Preparation and Properties of PMP Hollow Fiber Membranes,TQ320.721
  12. Analysis of Genetic Diversity of JI Ling Natural Pinus Koraiensis Population by ISSR Marker,S791.247
  13. Liaoning genetic diversity of natural pine,S791.247
  14. Taylor miniemulsion polymerization reactor research,TQ316.334
  15. Studies on Mixing Characteristics of Polymerization Reactors for Ethylene-tetrafluoroethyl Continuous Copolymerization and Vinyl Chloride Suspension Polymerization,TQ325.3
  16. Experimental Study of Liquid Flow and Axial Dispersion Performance in Multiphase Monolithic Reactors,TQ021.4
  17. Introducing and Provenance Trial of Pinus Sibirica,S791.247
  18. Study on Separation, Identification and Protective Effect of Oxidative Damage Induced by Radiation of Polyphenols in Pinus Koraiensis,R284
  19. Information Efficiency and the Adjustment of Asset Price in Cross-market,F224
  20. The Study on Fire Performance of EPDM Rubber Waterproof Sheet,X932
  21. Study of PAN-based Carbon Fiber Pre-oxidation Processing,TQ342.741

CLC: > Agricultural Sciences > Forestry > Forest Protection > Forest fire
© 2012 www.DissertationTopic.Net  Mobile