Download or read book Ignition of Cellulosic Solids written by A. Murty Kanury and published by . This book was released on 1971 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mechanisms of Ignition of Cellulosic Materials by Intense Thermal Radiation written by S. Martin and published by . This book was released on 1956 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relation of Heat Flux Parameters to Ignition Time of Cellulosic Solids written by C. Stuart Kelley and published by . This book was released on 1972 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Piloted Ignition Times for Cellulosic Solids Exposed to Time Dependent Heat Fluxes written by C. Stuart Kelley and published by . This book was released on 1971 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The time to piloted ignition of a cellulosic solid, when exposed to a constant incident heat flux, has been extensively studied by other researchers. Results have been interpreted by relating the ignition time to the heat flux by a transcendental equation involving the error function. For practical situations, the equation simplifies to an inverse power dependence of the ignition time on the heat flux. The present paper extends the scope of this inverse power relation by adapting it to include the effects of a varying heat flux. It then is used to predict ignition times of a wood target exposed to flames from pools of gelled hydrocarbons. Results indicate that the ignition time is inversely proportional to the hydrocarbon mass and is relatively independent of height (above the flame agent) below a height equal to the pool radius and then increases rapidly with height. Thermocouple measurements of flames from burning gelled hydrocarbons are reported. (Author).
Download or read book Effect of Water on Ignition of Cellulosic Materials written by Mahmood Abu-Zaid and published by . This book was released on 1988 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Potassium Bicarbonate on the Ignition of Cellulose by Thermal Radiation written by A. Broido and published by . This book was released on 1961 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: IN ACCORD WITH THE ESTABLISHED EFFECTIVENESS OF KHCO3 as a fire extinguishing agent, it has been shown that KHCO3 treatment of alpha cellulose papers prior to their exposure to thermal radiation reduces their sensitivity to transient flaming and that sustained flaming may be completely prevented without adding more than 1.5% by weight. On the other hand, KHCO3 treatment greatly increases the sensitivity of cellulose to glowing ignition, APPARENTLY BY INCREASING THE RATE AND DEGREE OF PYROLYSIS. Treatment particularly enhances the production during pyrolysis of such combustible gases as H2, CH4, C2H4, and C2H6 at the expense of high molecular weight, tarry materials. (Author).
Download or read book Ignition and Combustion of Cellulosic Dust Particles written by Philip Joseph Austin and published by . This book was released on 1994 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ignition of Cellulosic Kindling Fuels by Very Brief Radiant Pulses written by S. Martin and published by . This book was released on 1963 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ignition and Burning of Solids written by R. Fridman and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal Radiation Damage to Cellulosic Materials written by C. P. Butler and published by . This book was released on 1956 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Water on Piloted Ignition of Cellulosic Materials written by M. Abu-Zaid and published by . This book was released on 1988 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents a simple theoretical model of the piloted ignition process. The two-dimensional coupled solid and gas phase problem is simplified by assuming that the mass evolution rate from the combustible solid is a known function of time and by employing a plane rather than a point ignition source. These assumptions reduce the model problem to a transient one-dimensional analysis of the gas-phase phenomena. The model equations are solved numerically using a fast scheme especially suited to combustion problems. The pilot flame is modeled as a thin slab of gas that is periodically heated to the adiabatic flame temperature of the stoichiometric mixture. The effects of: (i) the location of the ignition source, (ii) the fuel mass evolution rate from the surface, and (iii) the surface temperature of the solid are investigated. This model adequately explains the pre-ignition flashes that are often observed experimentally. It also provides a rational criterion for positioning of the pilot flame. It is found that the minimum fuel flow rate, by itself is insufficient for predicting the onset of piloted ignition and that heat losses to the surface play an important role. Also, the conditions at extinction of a steady diffusion flame are found to be identical to those at piloted ignition.
Download or read book Effect of Water on Piloted Ignition of Cellulosic Materials written by and published by . This book was released on 1988 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents a simple theoretical model of the piloted ignition process. The two-dimensional coupled solid and gas phase problem is simplified by assuming that the mass evolution rate from the combustible solid is a known function of time and by employing a plane rather than a point ignition source. These assumptions reduce the model problem to a transient one-dimensional analysis of the gas-phase phenomena. The model equations are solved numerically using a fast scheme especially suited to combustion problems. The pilot flame is modeled as a thin slab of gas that is periodically heated to the adiabatic flame temperature of the stoichiometric mixture. The effects of: (i) the location of the ignition source, (ii) the fuel mass evolution rate from the surface, and (iii) the surface temperature of the solid are investigated. This model adequately explains the pre-ignition flashes that are often observed experimentally. It also provides a rational criterion for positioning of the pilot flame. It is found that the minimum fuel flow rate, by itself is insufficient for predicting the onset of piloted ignition and that heat losses to the surface play an important role. Also, the conditions at extinction of a steady diffusion flame are found to be identical to those at piloted ignition.
Download or read book Ignition of Solids written by Vladimir Nikiforovich Vili︠u︡nov and published by Elsevier Publishing Company. This book was released on 1989 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ignition of condensed substances is a recent scientific trend in combustion and explosion physics. Its principal results have been obtained largely by using computers and modern experimental techniques. In this book the authors present a comprehensive theoretical examination of various ignition models and the elaboration of experimental approaches for their description. The first three chapters were originally published in 1984 in Russian (V.N. Vilyunov, Ignition Theory of Condensed Substance, Nauka, Novosibirsk). For this English edition they have been revised and supplemented by new material. Two completely new chapters have also been added: one devoted to experimental studies and the other to local ignition problems. The book is the result of several years of active experience in the field of ignition. It will be of particular interest to research workers in chemical physics and to engineers dealing with the problems of fire-explosion accident prevention.
Download or read book Proceedings written by and published by . This book was released on 1970 with total page 1532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Combustion of Solid Fuels and Wastes written by David Tillman and published by Academic Press. This book was released on 2012-12-02 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Careful organization and empirical correlations help clarify the prodigious technical information presented in this useful reference. Written for practicing engineers, this comprehensive book supplies an overall framework of the combustion process; It connects information on specific reactions and reaction sequences with current applications and hardware; Each major group of combustion solids is evaluated; Among the many topics covered are: Various biomass forms The coalification process Grate, kiln, and suspension firing Fluidized bed combustion Gasification of solids The manufacturing process
Download or read book Fire Standards and Safety written by Alexander Francis Robertson and published by ASTM International. This book was released on 1977-06 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Controlling Mechanisms and Limiting Conditions for the Gas phase Ignition of Solid Combustible Materials written by José Luis Córdova and published by . This book was released on 1997 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
