Apparatus and method for direct measurement of coal ash sintering and fusion properties at elevated temperatures and pressures
Abstract
A high-pressure microdilatometer is provided for measuring the sintering and fusion properties of various coal ashes under the influence of elevated pressures and temperatures in various atmospheres. Electrical resistivity measurements across a sample of coal ash provide a measurement of the onset of the sintering and fusion of the ash particulates while the contraction of the sample during sintering is measured with a linear variable displacement transducer for detecting the initiation of sintering. These measurements of sintering in coal ash at different pressures provide a mechanism by which deleterious problems due to the sintering and fusion of ash in various combustion systems can be minimized or obviated.
- Inventors:
-
- Morgantown, WV
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- OSTI Identifier:
- 867634
- Patent Number(s):
- 4976549
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- apparatus; method; direct; measurement; coal; ash; sintering; fusion; properties; elevated; temperatures; pressures; high-pressure; microdilatometer; provided; measuring; various; ashes; influence; atmospheres; electrical; resistivity; measurements; sample; provide; onset; particulates; contraction; measured; linear; variable; displacement; transducer; detecting; initiation; mechanism; deleterious; due; combustion; systems; minimized; obviated; direct measurement; combustion systems; coal ash; elevated temperatures; elevated temperature; electrical resistivity; elevated pressure; linear variable; resistivity measurements; variable displacement; direct measure; displacement transducer; various coal; fusion properties; /374/324/
Citation Formats
Khan, M Rashid. Apparatus and method for direct measurement of coal ash sintering and fusion properties at elevated temperatures and pressures. United States: N. p., 1990.
Web.
Khan, M Rashid. Apparatus and method for direct measurement of coal ash sintering and fusion properties at elevated temperatures and pressures. United States.
Khan, M Rashid. Mon .
"Apparatus and method for direct measurement of coal ash sintering and fusion properties at elevated temperatures and pressures". United States. https://www.osti.gov/servlets/purl/867634.
@article{osti_867634,
title = {Apparatus and method for direct measurement of coal ash sintering and fusion properties at elevated temperatures and pressures},
author = {Khan, M Rashid},
abstractNote = {A high-pressure microdilatometer is provided for measuring the sintering and fusion properties of various coal ashes under the influence of elevated pressures and temperatures in various atmospheres. Electrical resistivity measurements across a sample of coal ash provide a measurement of the onset of the sintering and fusion of the ash particulates while the contraction of the sample during sintering is measured with a linear variable displacement transducer for detecting the initiation of sintering. These measurements of sintering in coal ash at different pressures provide a mechanism by which deleterious problems due to the sintering and fusion of ash in various combustion systems can be minimized or obviated.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}
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