Download or read book Engineered Wood Fuels for Southeast Alaska written by David L. Nicholls and published by . This book was released on 2019 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineered Wood Fuels for Southwest Alaska written by David L. Nicholls and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wood Energy in Alaska written by David L. Nicholls and published by . This book was released on 2009 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomass resources in Alaska are extensive and diverse, comprising millions of acres of standing small-diameter trees, diseased or dead trees, and trees having lowgrade timber. Limited amounts of logging and mill residues, urban wood residues, and waste products are also available. Recent wildfires in interior Alaska have left substantial volumes of burned timber, potentially usable for biomass energy. Motivated, in part, by rising fuel prices, organizations across the state -- including businesses, schools, and government agencies -- have all expressed an interest in wood energy applications. Numerous sites have pursued feasibility studies or engineering design analysis, and others have moved forward with project construction. Recent advances in biomass utilization in Alaska have been enabled by numerous factors, and involve various fuel sources, scales of operation, and end products. Already, thermal wood energy systems are using sawmill residues to heat lumber dry kilns, and a public school heating system is in operation. Management policies on national forests and state forests in Alaska could determine the type and amounts of available biomass from managed forests, from wildland-urban interface regions, and from salvage timber operations. Biomass products in Alaska having potential for development are as diverse as wood pellets, cordwood (firewood), compost, wood-plastic composite products, and liquid fuels. In addition, new technologies are allowing for more efficient use of biomass resources for heating and electrical generation at scales appropriate for community power. This case study review considers successes and lessons learned from current wood energy systems in Alaska, and also considers opportunities for future bioenergy development.
Download or read book Planning Implementation and History of the First 5 Years of Operation of the Craig Alaska Pool and School Biomass Heating System written by Allen M. Brackley and published by . This book was released on 2016 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of Wood Energy for Lumber Drying and Community Heating in Southeast Alaska written by and published by . This book was released on 2004 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The inadequate transportation infrastructure and undeveloped markets for sawmill residues in southeast Alaska are among the factors that limit the use of this forest resource. This study considers the potential use of sawmill residues to supply two bioenergy systems that would produce thermal energy for (1) community heating and (2) a lumber dry kiln in Hoonah, Alaska. The proposed community heating system would be a direct combustion system, burning approximately 1,450 green tons (1.315 green metric kilotons) of wood fuel per year to provide heating for seven centrally located buildings in Hoonah. Additional sawmill residues would be used in another system to provide process heat for a proposed 25,000 board foot (41.3 m3) dry kiln. The Hoonah sawmill typically produces as much as 5 million board feet (8,255 m3) of lumber per year, primarily from western hemlock and Sitka spruce. The processing of this amount of lumber would result in an adequate volume of residue to provide a fuel source for the heating requirements of the proposed projects. Wood residue from the sawmill is assumed to be available at no cost other than for transportation. Use of wood fuel for community heating would save an estimated 65,000 gallons (2.47 kL) of heating oil per year. Avoided fuel costs would be approximately $91,500 per year based on No. 2 fuel oil at a market price of $1.40 per gallon ($0.37 per liter). Based on a project life of 25 years and a contingency rate of 25%, the expected after-tax internal rate of return (IRR) for the community heating portion of the project is 29.6%. Total installed costs for the 1,195,000 Btu/h (350 kWthermal) community heating system, including distribution piping and its installation and backup oil systems, are estimated to be $631,000. For the lumber dry kiln, in the second heat-generating system, economic results were less favorable, with expected energy savings of $82,900 per year and an after-tax IRR of 24.1% (also assuming 25% contingency). Estimated installed cost of the 1,536,000 Btu/h (450 kWthermal) dry kiln system with a backup oil system is $513,800.
Download or read book Wood Energy for Residential Heating in Alaska Current Conditions Attitudes Expected Use written by and published by DIANE Publishing. This book was released on with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wood Energy for Residential Heating in Alaska written by David L. Nicholls and published by . This book was released on 2010 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study considered three aspects of residential wood energy use in Alaska: current conditions and fuel consumption, knowledge and attitudes, and future use and conditions. We found that heating oil was the primary fuel for home heating in southeast and interior Alaska, whereas natural gas was used most often in south-central Alaska (Anchorage). Firewood heating played a much more important role as a secondary (vs. primary) heating source in all regions of Alaska. In interior Alaska, there was a somewhat greater interest in the use of wood energy compared to other regions. Likewise, consumption of fossil fuels was considerably greater in interior Alaska. Cost was a primary factor influencing motivation to convert to wood energy. Most respondents were at least somewhat familiar with residential wood-burning systems, however relatively few were familiar with Environmental Protection Agency certified woodstoves. Firewood/cordwood was by far the preferred wood fuel choice, whereas wood briquettes were least preferred. Similarly, firewood was the type of wood fuel that respondents were most familiar with. Variations were observed between Alaska's primary regions (southeast, south-central, and interior). This could be attributed to a number of factors including colder climates in interior Alaska, and overall low use of wood energy in south-central Alaska because of preferences for natural gas. Fuel oil prices of $4.00 to $5.00 per gallon would be needed for most homeowners to convert to wood heating. There was a broad range of willingness to pay for new wood energy systems (from about $1,000 to $3,000). However, this survey was not random and results may not be representative of the populations at each sampling location.
Download or read book Adoption of Engineered Wood Products in Alaska written by Joseph A. Ross and published by . This book was released on 2009 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Potential for Wood Energy and Biomass Fuels in Alaska written by Dmitry S. Halinen and published by Nova Science Publishers. This book was released on 2011-10 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Goal three of the current U.S. Department of Agriculture, Forest Service strategy for improving the use of woody biomass is to help develop and expand markets for woody biomass products. This book explores the existing volumes of renewable wood energy products (RWEP) that are currently used in Alaska and the potential demand of RWEP for residential and community heating projects in the state. Data published by the U.S. Department of Commerce, Bureau of Census and the U.S. Department of Energy have been used to build a profile of residential and commercial energy demand for Alaska census tracts. If fuel oil prices increase to the levels experienced in 2008, there would be a strong economic incentive to convert heating systems to use solid wood fuels.
Download or read book Biomass Conversion Opportunities written by and published by . This book was released on 1987 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Forest Ecosystem of Southeast Alaska written by and published by . This book was released on 1974 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Economic Sensitivity and Risk Analysis for Small scale Wood Pellet Systems written by David L. Nicholls and published by . This book was released on 2017 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research models a wood pellet heating system at the Tlingit-Haida Regional Housing Authority in Juneau, Alaska, used to provide thermal energy to a 929-M2 warehouse, as an alternative to a heating system that burns more costly fossil fuels. Research objectives were to evaluate project economics of the pellet system and to conduct cost:benefit analysis on key variables (initial capital cost, fuel oil cost, and wood pellet cost). Economic results of interest included net present value, payback, internal rate of return, and cost:benefit ratio. Monte Carlo simulations were conducted using RETScreen software with the parameters of heating oil cost, wood pellet cost, fuel price escalation, and heating load. Cost:benefit analysis was conducted for capital cost versus wood fuel cost and also versus alternative fuel cost. This research found that economic performance was favorable over a wide range of normal operation conditions, even when paying a relatively high price for wood fuel. A pellet production facility in southeast Alaska could lead to lower wood fuel costs and even more favorable regional economics.
Download or read book Wood Energy in Alaska written by David L. Nicholls and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 2005 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering and Mining Journal written by and published by . This book was released on 1903 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mining Engineer written by Institution of Mining Engineers (Great Britain) and published by . This book was released on 1903 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Indian Engineering written by Patrick Doyle and published by . This book was released on 1909 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
