2 edition of Measuring fuel moisture content in Alaska found in the catalog.
Measuring fuel moisture content in Alaska
Rodney A Norum
by U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station in Portland, Or
Written in English
|Statement||Rodney A. Norum and Melanie Miller|
|Series||General technical report PNW -- 171|
|Contributions||Miller, Melanie, 1948-, Pacific Northwest Forest and Range Experiment Station (Portland, Or.)|
|The Physical Object|
|Pagination||34 p. :|
|Number of Pages||34|
Measuring duff moisture content in the field using a portable meter sensitive to dielectric permittivity Article (PDF Available) in International Journal of Wildland Fire 13(3) January Fuel moisture strongly influences fire ignition potential and flammability. Beginning in , fire ecologists from the National Park Service, Bureau of Land Management Alaska Fire Service and US Fish & Wildlife Service coordinated a large effort to monitor fuel moisture trends throughout AK.
moisture (about an ratio for nitrogen or standard air) each pore acts as a micro-capacitor. As the micro capacitors are in a parallel arrangement the total capacitance is additive. Fuel that is separated is less likely to carry fire than fuel that is continuous. In addition, more fuel means larger flames and greater fire intensity. Fire behaviour is affected by the moisture content of fuels, which in turn depends on a number of factors such as weather conditions, vegetation types and whether the fuel is dead or living.
Fuel moisture and fuel temperature sensors emulate and measure the moisture content and temperature of similarly sized twigs on the forest floor. The sensors are typically used as part of larger systems, such as fire weather stations with data loggers and telemetry capability, to remotely assess changing fuel conditions and potential fire hazards. The spread of wildfires varies based on the flammable material present, its vertical arrangement and moisture content, and weather conditions. Fuel arrangement and density is governed in part by topography, as land shape determines factors such as available sunlight and water for plant l, fire types can be generally characterized by their fuels as follows.
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Get this from a library. Measuring fuel moisture content in Alaska: standard methods and procedures. [Rodney A Norum; Melanie Miller; Pacific Northwest Forest and. Measuring Fuel Moisture Content in Alaska: Standard Methods and PN W Procedures Rodney A. Norum and Melanie Miller United States Department of Agriculture Forest Service Pacific Northwest Forest andRange Experiment Station General Technical Report PNW- This file was created by scanning the printed publication.
Text errors identified. moisture content. Direct sampling of fuels is the best alternative. Regardless of the purpose of fuel moisture sampling, a standard procedure for collecting, processing, calculating and reporting the moisture content is necessary.
Errors in estimating representative fuel moisture content on a site can potentially be introduced during. Description. The methods below are generally based on R.A. Norum and M. Miller, Measuring Fuel Moisture Content in Alaska: Standard Methods and Procedures.
LIVE FUEL MOISTURE SAMPLING PROCEDURES 1. in moisture content, both may need to be collected if well represented on site. The site should be located near a RAWS station or in an area with weather well fuel moisture content for your species of interest on the entire Size: KB.
Describes the evaluation of seven scales and meters used to determine the moisture content in hour fuel moisture sticks, (four connnected ponderosa pine dowels) that are used to estimate the moisture in hour dead fuels.
For optimal prescribed burning conditions, the moisture content of the hour fuel sticks should be from 8 to 17 percent. Methods and procedures are given for collecting and processing living and dead plant materials for the purpose of determining their water content.
Wildland fuels in Alaska are emphasized, but the methodology is applicable elsewhere. Guides are given for determining the number of samples needed to attain a chosen precision. Detailed procedures are presented for collecting fuel.
Dead fuel moisture responds solely to ambient environmental conditions and is critical in determining fire potential. Dead fuel moistures are classed by timelag. A fuel's timelag is proportional to its diameter and is loosely defined as the time it takes a fuel particle to reach 2/3's of its way to.
Measuring fuel moisture content in Alaska: standard methods and procedures / (Portland, Or.: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, ), by Rodney A. Norum, Melanie Miller, and Or.) Pacific Northwest Forest and Range Experiment Station (Portland (page images at HathiTrust).
Buy wood from a seller who tells you the moisture content of the wood you buy; Measure the wood yourself with a meter Wood Moisture Temperature Corrections (PDF) If you buy wet wood, wait for it to dry before burning; If you must burn wet wood, mix it with compressed wood logs; Seasoning Firewood: Curing Firewood in Interior Alaska (CCHRC) (PDF.
A PRACTICAL GUIDE FOR THE DETERMINATION OF MOISTURE CONTENT OF WOODY BIOMASS Overview Use of woody biomass such as mill residues and forest residues is not a new practice by any stretch of the imagination. There is a long and widespread tradition of the use of woody biomass in energy appli-cations such as a boiler fuel, and it represents a very.
WEATHER AND FUEL MOISTURE The moisture content of live and dead vegetation is not in itself a weather element. It is a product, however, of the cumulative effects of past and present weather events and must be considered in evaluating the effects of current or future weather on fire potential.
Fuel moisture content limits fire propagation. A simple method for assessing fuel moisture content and fire danger rating Sharples, J.J. 1, 41, R.H.D. McRae 2, 4, R.O. Weber and A.M. Gill 3, 4 1 School of Physical Environmental and Mathematical Sciences University of New South Wales at the Australian Defence Force Academy, Australian Capital Territory 2 ACT Emergency Services AgencyCited by: 2.
The DYK is a suite of notes that attempt to explain or clarify complex climate phenomena, Climate Monitoring products and methodologies, and climate system insights. heterogeneous, having a moisture content varying from 15% up to 65%.
The moisture content affects the combustion of the fuel and therefore its commercial value. The industry is now interested in obtaining a method for measuring the moisture content of biofuel, quickly. Percent Moisture Content = Weight of Water / Oven-dry Weight of Fuel x Moisture content can be greater than percent because the water in a fuel particle may weigh considerably more than the dry fuel itself.
For example, a green leaf may contain three times as much water as there is dry material, leading to a moisture content of percent. The CS is a fuel moisture sensor that measures the moisture content of the hour fuel moisture stick. The emulates the moisture content of similarly sized twigs on the forest floor.
The CS/ combination is used to assess forest fire fuel and is often incorporated in our prewired or custom fire-weather t Consumption: 65 mA (active), 45 μA (quiescent).
Fuel model guide to Alaska vegetation April Page 5 Alaska fuel model guidebook This section of the document is the guidebook to Alaska fuel models. It contains fuel and fire behavior information gleaned from workshop participants, and vegetation characteristics taken from Viereck and others ().
The moisture content is automatically calculated from the difference in weight. Measuring principle The halogen moisture analyzer works along the lines of the thermogravimetric principle, i.e. the sample's start weight is recorded, then a halogen radiator dries it while an.
Estimation of Fuel Moisture Content Using Neural Networks Conference Paper (PDF Available) in Lecture Notes in Computer Science June with Reads How we measure 'reads'.
The proper guidelines for measuring moisture content in biofuel materials are addressed in ISO – Solid biofuels – Determination of moisture content – Oven dry method. Biofuels are the energy sources made from living things or the waste that living things produce.These Oil Moisture Meter instruments are extensively used for measuring moisture content in Mineral Transformer Oil, Hydraulic Oil, Furnace Oil and Other Lubricating Oils.
These meters confirm to global standards in their performance and are extremely convenient to use. These meters are lightweight and have durable exterior for increased longevity.REASONS FOR MEASURING THE MOISTURE CONTENT IN NATURAL GAS. 1. Natural Gas must often be dried before it can be distributed to its end users.
The drying is necessary to prevent hydrate formation and liquid water deposition in the pipelines and/or condensation in the compressors; all of which would either cause damage or poor performance of the equipment.