the Handbook of Biomass Combustion and Co-firing

by Marc-André Parisien (Editor), Enric Batllori (Editor), Sean A. Parks Carol Miller (Editor) Wildland fire is an important, pervasive, and a sometimes-destructive ecological process in many forest ecosystems across the globe. In some cases, wildland fire maintains and reinforces forest dynamics. This is common, for example, in forests with thick-barked species that are adapted to frequent, low-severity fires or in forests where species’ regenerative traits (e.g., serotiny, resprouting) allow them to endure regimes of recurrent high-severity fire. However, wildland fire can also act as a catalyst that changes the successional trajectory of forest ecosystems, particularly if the factors responsible for historical fire regimes (e.g., frequency, severity, or season) have been substantially altered and exceed species’ adaptive capacity. Examples of these situations include effects of extreme fire weather and drought, fuel buildup due to fire exclusion or insect-induced mortality, and interactions between these factors. Some of these situations may result in fire-induced conversions from forest to non-forest ecosystems.

by Eunmo Koo (Author) Wildfires are complex phenomenon. To understand their spread mechanisms, physics based wildfire models are developed here. Discontinuous fire spread, i.e., spotting, is studied through a review of historical wind-driven and post-earthquake fires. Transport of various shapes of combusting firebrands is modeled using momentum balance on the firebrand. Firebrand trajectories are simulated in velocity and thermal fields generated by the FIRETEC wildfire model. Contiguous fire spread is modeled based on energy conservation and detailed heat transfer mechanisms. Predictions of contiguous fire spread rates are compared to laboratory experiments and prescribed fires.

5th Edition

by Irvin Glassman (Author), Richard A. Yetter (Author), Nick G. Glumac (Author) Throughout its previous four editions, Combustion has made a very complex subject both enjoyable and understandable to its student readers and a pleasure for instructors to teach. With its clearly articulated physical and chemical processes of flame combustion and smooth, logical transitions to engineering applications, this new edition continues that tradition. Greatly expanded end-of-chapter problem sets and new areas of combustion engineering applications make it even easier for students to grasp the significance of combustion to a wide range of engineering practice, from transportation to energy generation to environmental impacts. Combustion engineering is the study of rapid energy and mass transfer usually through the common physical phenomena of flame oxidation. It covers the physics and chemistry of this process and the engineering applications―including power generation in internal combustion automobile engines and gas turbine engines. Renewed concerns about energy efficiency and fuel costs, along with continued concerns over toxic and particulate emissions, make this a crucial area of engineering