Classification Of Cost | PPT
AVOIDABLE AND UNAVOIDABLE Avoidable costs. IMPUTED OR HYPOTHETICAL. DIFFERENTIAL COSTS The difference. OUT-OF-POCKET COST This means. OPPORTUNITY COST This cost. TRACEABLE OR UNTRACEABLE. JOINT COSTS These are. COMMON COSTS Common costs. Classification Of Cost - …
Coal | Properties, Formation, Occurrence and Uses
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(PDF) Coal Formation and GeochemistryWEBBased on maceral content and its appearance in a hand specimen, coal is classified into four principal types: clarain, durain, fusain, and vitrain. Coal may also be classified in …
Classifications of salads | PPT
Salad is derived from the Latin word, Sal which means salt. 2. Salad has four (4) classifications of salads according to use. 3. Atchara is an accompaniment or side dish salad. 4. Salad is sometimes served as palate cleanser. 5. Main dish salads must contain protein.
Coal explained
Coal is classified into four main types, or ranks: anthracite, bituminous, subbituminous, and lignite. The ranking depends on the types and amounts of carbon the coal contains and …
PPT
Presentation Transcript. Chemical Hazards Dr. Ardini Raksanagara, MD., MPH Public Health Department Faculty of Medicine, UNPAD. Subtopics • Toxicology • Pneumoconiosis • Inorganic Chemicals • Organic Chemicals. SPECIFIC LEARNING OBJECTIVES The student will be able : • to recognize chemical hazards in the …
Coal
Classification of coal based on volatile matter and cooking power of clean material. Coal is a readily combustible rock containing more than 50 percent by weight of carbonaceous material formed from compaction …
Classification of Coal Quality Management | PDF
Classification of Coal Quality Management - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. Scribd is the world's largest social reading and publishing site.
Coal
The classification of coal by rank is based on these changes—i.e., as coalification proceeds, the amount of volatile matter gradually decreases and the amount of fixed …
What are the types of coal? | U.S. Geological Survey
Energy. What are the types of coal? There are four major types (or "ranks") of coal. Rank refers to steps in a slow, natural process called "coalification," during which buried plant matter changes into an ever denser, drier, …
Coal MaceralsTutorial | Petrographic Atlas | SIU
Tutorial. Coal is an extremely complex heterogeneous material that is difficult to characterize. Coal is a rock formed by geological processes and is composed of a number of distinct organic entities called macerals and lesser amounts of inorganic substances - minerals. The essence of the petrographic approach to the study of coal composition ...
Coal mining methods | PPT
11. Deep Underground Mining is needed when coal seams are found too deep underground. 60% of the world coal production is mined by underground mining method. Bord and Pillar method, Longwall method and short wall method are the most commonly used mining method. 1). Bord and Pillar method:1).
Coal classification | Types & Facts | Britannica
Based on maceral content and its appearance in a hand specimen, coal is classified into four principal types: clarain, durain, fusain, and vitrain. Coal may also be classified in grades using subjective terms (e.g., "low-sulfur coal," "high-ash coal") with reference to their impurities for commercial purposes. Otto C. Kopp.
Sources of energy | PPT
7. Conventional Energy Sources Disadvantages of Conventional Energy Sources Petroleum, gas and coal are non renewable energy sources which means that they will eventually run out. These …
Coal Petrology
Coal Carbonization. John C. Crelling, in Applied Coal Petrology, 2008 7.2 The Coal-to-Coke Transformation. The most successful industrial applications of coal petrology have been in the carbonization industry. Coal petrology is used to evaluate the suitably of a given coal for coking, predict the strength of cokes made from both single coals and coal …
Accidents in coal mines | PPT
Aug 16, 2010 •. 27 likes • 11,221 views. MOHAMMED IMRAN. Education. 1 of 11. Download Now. Download to read offline. ACCIDENTS IN COAL. Accidents in coal mines - Download as a PDF or view online for free.
Classification of Coal
In about 1820, the terms "lean coal," "fat coal," "hard and soft coal" and "bituminous coal" were adopted. In 1826, Karsten introduced a classification of coal on the basis of the …
Coal
The classification of coal by. Coal - Carbon, Organic Matter, Sedimentary Rock: The plant material from which coal is derived is composed of a complex mixture of organic compounds, including cellulose, lignin, fats, waxes, and tannins. As peat formation and coalification proceed, these compounds, which have more or less open structures, are ...
Conventional sources of energy | PPT
PPT ON NON-CONVENTIONAL ENERGY SOURCES (Renewable energy resources) ... CLASSIFICATION OF ANTI - CANCER DRUGS.pptx Anupam32727 ... Coal is composed primarily of carbon along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. • Coal forms when dead plant matter is …
Engineering Chemistry: Lesson 3. Fuels and its classification
Lesson 3. Fuels and its classification. 3.1 INTRODUCTION. This section briefly describes the main features of fuels. Energy from the Sun is converted into chemical energy by photosynthesis. But, as we know, when we burn dried plants or wood, producing energy in the form of heat and light, we are releasing the Sun's energy originally stored in ...
Classification of Coal
In about 1820, the terms "lean coal," "fat coal," "hard and soft coal" and "bituminous coal" were adopted. In 1826, Karsten introduced a classification of coal on the basis of the composition of the residue left when coal is heated; he made a distinction between "Sand Kohle" (Sand coal), "Sinterkohle" and "Backende ...
Classification of Matter
A pure substance has a fixed composition and distinct properties A mixture consists of two or more pure substances which retain their chemical identities. Classification of Matter Pure substance: characteristics The percent of each component always the same from sample to sample Example: water is always 11.2% hydrogen and 88.8% oxygen – no ...
GEOLOGICAL EXPLORATION AS PER UNFC STAGES AND …
GSI for coal and lignite Dept. of Petroleum & Natural Gas for oil and gas Both government and private exploration agencies followed the classification of mineral reserves/resources evolved by GSI in 1981 Prior to 1981 – No Nationally accepted system National classification system is 2 dimensional system – with no
Fuels
INTRODUCTION A fuel is a combustible substance containing carbon as the main constituent which on proper burning gives a large amount of heat that can be used economically. For example: wood, coal, kerosene, petrol, diesel and water gas. Combustion reaction of a fuel can be represented as follows: -5 C02 (g) + 1-120 (g) + heat CH + 02 n …
coal preparation, | PPT
Dec 12, 2016 •. 28 likes • 12,017 views. Shri Mata Vaishno Devi University. coal prepration. Environment. 1 of 51. Download Now. Download to read offline. coal preparation, - Download as a PDF or view online for free.
COAL CHARACTERISTICS
Classification of coal based on volatile matter and cooking power of clean material. Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!
What are the types of coal? | U.S. Geological …
There are four major types (or "ranks") of coal. Rank refers to steps in a slow, natural process called "coalification," during which buried plant matter changes into an ever denser, drier, more carbon-rich, and harder …
Chemicals from Coal Gasification
The produced "syngas" consists mainly of carbon monoxide (CO), hydrogen (H 2 ), water vapor (H 2 O), and some other minor gases. These gases can then be separated through chemical processes and used as chemical feedstocks or products. Coal gasification can also be used to provide electricity in Integrated Gasification Combined …
Minerals Resources India | PPT
MINERALS & ENERGY RESOURCES-PPT.pdf kavithashiju8gmailco ..., MINERAL CLASSIFICATION,MINERALS OF INDIA AND IMPORTANCE OF MINERALS. PRESENTED BY GOWRI V …
GCV and HCV: Calorific Values Explained | PPT
4. 4 Higher Calorific Value • It is defined as • "the total amount of heat liberated,when a unit mass of fuel is burnt completely • The product of the combustion are cooled to room temperature". • When a Fuel containing hydrogen is burnt, the hydrogen is converted into steam. • If the combustion products are cooled to room temperature,the …
PPT
Staged Combustion. 1) Coal combustion in Israel has tripled since 1990. Almost all of coal use is for electricity production. 2) Coal combustion emissions in Israel: • 71% of total SO2 emissions. • …