Physical properties of solid fuel briquettes made from Caragana korshinskii Kom

2014 ◽  
Vol 256 ◽  
pp. 293-299 ◽  
Author(s):  
Jing Zhang ◽  
Yuming Guo
Keyword(s):  
Physical Properties ◽  
Solid Fuel ◽  
Caragana Korshinskii

Physical properties of solid fuel briquettes from bituminous coal waste and biomass

2011 ◽  
Vol 17 (4) ◽  
pp. 434-438 ◽  
Author(s):  
A. Zarringhalam-Moghaddam ◽  
N. Gholipour-Zanjani ◽  
S. Dorosti ◽  
M. Vaez
Keyword(s):  
Physical Properties ◽  
Solid Fuel ◽  
Bituminous Coal ◽  
Coal Waste

scholarly journals Modeling of heat and mass transfer during thermal decomposition of a single solid fuel particle

2013 ◽  
Vol 34 (2) ◽  
pp. 53-71 ◽  
Author(s):  
Izabela Wardach-Święcicka ◽  
Dariusz Kardaś
Keyword(s):  
Mass Transfer ◽  
Thermal Decomposition ◽  
Physical Properties ◽  
Heat And Mass Transfer ◽  
Solid Particle ◽  
Solid Fuel ◽  
Alternative Fuels ◽  
Solid Phase ◽  
Fuel Particle ◽  
Pyrolysis Process

Abstract The aim of this work was to investigate the heat and mass transfer during thermal decomposition of a single solid fuel particle. The problem regards the pyrolysis process which occurs in the absence of oxygen in the first stage of fuel oxidation. Moreover, the mass transfer during heating of the solid fuels is the basic phenomenon in the pyrolysis-derived alternative fuels (gas, liquid and solid phase) and in the gasification process which is focused on the generation of syngas (gas phase) and char (solid phase). Numerical simulations concern pyrolysis process of a single solid particle which occurs as a consequence of the particle temperature increase. The research was aimed at an analysis of the influence of particle physical properties on the devolatilization process. In the mathematical modeling the fuel grain is treated as an ideal sphere which consists of porous material (solid and gaseous phase), so as to simplify the final form of the partial differential equations. Assumption that the physical properties change only in the radial direction, reduces the partial derivatives of the angular coordinates. This leads to obtaining the equations which are only the functions of the radial coordinate. The model consists of the mass, momentum and energy equations for porous spherical solid particle heated by the stream of hot gas. The mass source term was determined in the wide range of the temperature according to the experimental data. The devolatilization rate was defined by the Arrhenius formula. The results of numerical simulation show that the heating and devolatilization time strongly depend on the physical properties of fuel. Moreover, proposed model allows to determine the pyrolysis process direction, which is limited by the equilibrium state.

scholarly journals Influence of blending proportions of Teak Sawdust and Cajuput leaves on characteristics of biomass pellets

2020 ◽  
Vol 187 ◽  
pp. 03001
Author(s):  
Wassachol Wattana ◽  
Nattaya Montri ◽  
Manussavee Wongjanakul ◽  
Yingyot Naratta ◽  
Sansanee Duangjinda
Keyword(s):  
Moisture Content ◽  
Physical Properties ◽  
Bulk Density ◽  
Solid Fuel ◽  
Alternative Fuel ◽  
Sustainable Production ◽  
Fuel Pellet ◽  
Fuel Pellets

Fuel pellets made from biomass is considered as a solid fuel that is also an alternative fuel which can substitute for the current fuels and can be considered as a fuel that has sustainable production. This research is the study of the production of fuel pellets from Teak sawdust blends with Cajuput leaves at five proportions by weight of Teak sawdust 100%, Cajuput leaves 100%, Teak sawdust 75% +Cajuput leaves 25%, Teak sawdust 50% +Cajuput leaves 50%, Teak sawdust 25% +Cajuput leaves 75% . The pellets were produced by a grinding and pelleting machine at three different speeds of 200, 250, and 300 rpm. After that, the quality of fuel pellets was evaluated by the physical properties as pellet dimensions, particles and bulk density, as well as moisture content and durability. The results show that blending proportion of Teak sawdust 75% and Cajuput leaves 25% provided the appropriate fuel pellet properties.

scholarly journals Characterization of Rice Husk and Coconut Shell Briquette as an Alternative Solid Fuel

2020 ◽  
pp. 1-12
Author(s):  
Jamilu Tanko ◽  
Umaru Ahmadu ◽  
Umar Sadiq ◽  
Alhassan Muazu
Keyword(s):  
Physical Properties ◽  
Rice Husk ◽  
Solid Fuel ◽  
Calorific Value ◽  
Ash Content ◽  
Total Carbon ◽  
Coconut Shell ◽  
American Standard ◽  
Thermo Physical Properties

The physical properties of briquettes made from rice husk and coconut shell in different ratios were evaluated based on their thermo-physical properties. The calculated calorific values of the rice husk and coconuts hell are 16.51 MJ/kg and 18.60 MJ/kg, with densities of 1.50 g/cm3 and 3.00 g/cm3, respectively. Coconut shell has lower moisture and ash content of 10% and 26%, respectively, before briquetting. Comparisons of the experimental and calculated calorific values of the briquettes (17 to 21 MJ/kg) showed that they are in agreement with those of the American Standard of Testing Materials (ASTM) and those reported in the literature. The results further showed that the calorific values of the five briquette ratios were not a function of their moisture and ash contents, rather their total carbon contents. The briquette at the ratio 90:10 of rice husk to coconut shell has the highest calorific value and implies that it has more heating advantages and will therefore be suitable as an alternative solid fuel.

A-L 18NiCoMo (250)

Alloy Digest ◽  
1962 ◽  
Vol 11 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Solid Fuel ◽  
Precipitation Hardening ◽  
Martensitic Steel ◽  
Heat Treating ◽  
Aircraft Landing ◽  
Aircraft Landing Gear ◽  
High Nickel

Abstract A-L 18NiCoMo(250) is a high nickel martensitic steel which is strengthened by precipitation hardening. It has excellent combination of strength and toughness particularly in the presence of notches and cracks. It is recommended for applications such as solid fuel rocket cases and aircraft landing gear. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-137. Producer or source: Allegheny Ludlum Corporation.

scholarly journals A Study on the Physical Properties as Affected by Formation Conditions of High Density Bio-solid Fuel Made from Green Tea

2013 ◽  
Vol 2 (2) ◽  
pp. 83-87 ◽  
Author(s):  
Tamio IDA ◽  
Ryogo TAKAGI ◽  
Satoru MIZUNO ◽  
Edmundo SANCHEZ Jr. ◽  
Kunihiko NAMBA
Keyword(s):  
Physical Properties ◽  
Green Tea ◽  
Solid Fuel ◽  
High Density ◽  
Formation Conditions

The Photometric Properties of the Ap Stars

1976 ◽  
Vol 32 ◽  
pp. 365-377 ◽  
Author(s):  
B. Hauck
Keyword(s):  
Physical Properties ◽  
Ap Stars

The Ap stars are numerous - the photometric systems tool It would be very tedious to review in detail all that which is in the literature concerning the photometry of the Ap stars. In my opinion it is necessary to examine the problem of the photometric properties of the Ap stars by considering first of all the possibility of deriving some physical properties for the Ap stars, or of detecting new ones. My talk today is prepared in this spirit. The classification by means of photoelectric photometric systems is at the present time very well established for many systems, such as UBV, uvbyβ, Vilnius, Geneva and DDO systems. Details and methods of classification can be found in Golay (1974) or in the proceedings of the Albany Colloquium edited by Philip and Hayes (1975).

The Infection of Cells by Bullet-Shaped Viruses

1969 ◽  
Vol 27 ◽  
pp. 372-373
Author(s):  
Frederick A. Murphy ◽  
Alyne K. Harrison ◽  
Sylvia G. Whitfield
Keyword(s):  
Electron Microscopy ◽  
Physical Properties ◽  
Host Cell ◽  
Thin Section ◽  
Cultured Cells ◽  
Cell Infection ◽  
Thin Section Electron Microscopy ◽  
Section Electron ◽  
Section Electron Microscopy

The bullet-shaped viruses are currently classified together on the basis of similarities in virion morphology and physical properties. Biologically and ecologically the member viruses are extremely diverse. In searching for further bases for making comparisons of these agents, the nature of host cell infection, both in vivo and in cultured cells, has been explored by thin-section electron microscopy.

Transmission electron microscopy of composite materials

1988 ◽  
Vol 46 ◽  
pp. 1012-1015
Author(s):  
K.P.D. Lagerlof
Keyword(s):  
Composite Materials ◽  
Physical Properties ◽  
Structural Defects ◽  
Structural Composites ◽  
Multiphase Materials ◽  
Structural Reinforcement ◽  
Transmission Electron ◽  
Reinforced Fiber ◽  
Particulate Reinforced Composites ◽  
Definition Of

Although most materials contain more than one phase, and thus are multiphase materials, the definition of composite materials is commonly used to describe those materials containing more than one phase deliberately added to obtain certain desired physical properties. Composite materials are often classified according to their application, i.e. structural composites and electronic composites, but may also be classified according to the type of compounds making up the composite, i.e. metal/ceramic, ceramic/ceramie and metal/semiconductor composites. For structural composites it is also common to refer to the type of structural reinforcement; whisker-reinforced, fiber-reinforced, or particulate reinforced composites [1-4].For all types of composite materials, it is of fundamental importance to understand the relationship between the microstructure and the observed physical properties, and it is therefore vital to properly characterize the microstructure. The interfaces separating the different phases comprising the composite are of particular interest to understand. In structural composites the interface is often the weakest part, where fracture will nucleate, and in electronic composites structural defects at or near the interface will affect the critical electronic properties.

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