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Thermal spelling: The breaking or cracking or peeling off the refractory is known as spelling. A good refractory must show a good resistance to thermal spelling. Thermal spelling can be decreased by minimizing the development of internal stress by:
(1) Using refractory with high porosity, good thermal conductivity and low coefficient of expansion.
(2) Avoiding sudden temperature changes.
(3) Proper furnace design
A single-effect evaporator is used to concentrate 60000 kg h -1 of a 40 wt % NaOH solution which is fed to the evaporator at 40°C. The concentrated liquid is a 55 wt % NaOH soluti
One cubic metre of wet soil weighs 19.80 kN. If the exact gravity of soil particles is 2.70 and water content is 11%, Determine the void ratio, dry density and degree of saturat
Is a density bottle the sane as a pycnometer?
application of molecular diffusion in industries
Q. How can you measure the refractories and refractoriness under load of a refractory material?
why are some flashlights brighter than others?
INTRODUCTION : You have studied about chemical hazards in Unit 13 of Block-3 and would have learnt that many chemicals are hazardous. A good practice is to exercise caution in han
A Ge atom contains Ge atom contains Four valence electrons
report
Production of Chemicals from Coal Coal has been considered a major component of U.S. energy reserves for a long time, and more recently it has become an important raw material
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