Thermal spelling, Chemical Engineering

Assignment Help:

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

 

 


Related Discussions:- Thermal spelling

Process description for production of chemicals from coal, Process Descript...

Process Description For Production of Chemicals from Coal Before it can be fed to the gasification reactor, coal must be ground to meet specifications on particle size. The gr

Pour point and its significance, Pour point: Just as flashpoint when tempe...

Pour point: Just as flashpoint when temperature is further lowered below cloud point of certain temperature, oil becomes semi-solid and losses its flow characteristics. This point

Sketch their bode plots and compare with the matlab figures, 1. Consider th...

1. Consider the previous heat exchanger.  Tune a proportional controller for a)  GM = 2; PM = 45 degrees and c)  MPH (maximum peak height) occurs at 2 dB (provides a z of ~ 0.4).

Question from midterm, A mixture of calcium sulfate (CaSO4) and calcium ura...

A mixture of calcium sulfate (CaSO4) and calcium uranate (CaUO4) contains 10% sulfur by mass. What is the mass percentage of uranium in the mixture?

Calculate the molar flow rate, Wet air containing 4.0 mole% water vapor at ...

Wet air containing 4.0 mole% water vapor at 76°F and 14.8 psia is passed through a column of calcium chloride pellets. The pellets absorb 97% of the water and none of the other con

Materials used for dc applications, Materials used for DC applications are:...

Materials used for DC applications are: Iron and low-carbon steels (maximum carbon 0.05 %)  • Iron-Nickel alloys (Permalloy)   • Iron-Cobalt alloy (Permendur)

Estimate the hourly emissions - source emission factors, A contaminated soi...

A contaminated soil contains 100 mg metals/kg soil (all metals are readily condensable), 50,000 mg S/kg soil, 1,000 mg F/kg soil, 980 mg/Kg of VOCs and 40,000 mg Cl/kg soil and is

Cheme hw, Consider a process for the partial oxidation of benzene to produc...

Consider a process for the partial oxidation of benzene to produce maleic anhydride (C4H4O4) using air. There are two reactions to be concerned with: The first partially oxidizes t

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd