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Q. Material Selection for Insulation?
Material for 15ºC to 650ºC temp range is Calcium Silicate, Manville Thermo-12 or approved equivalent.
Material for -18ºC to 230ºC temp. range is Mineral Fibre (ASTM C547), Manville Micro-Lok or approved equivalent. The upper service temperature is limited by the decomposition temperature of organic binders that give the insulation its rigidity (approximately 175ºC). Operation substantially above the decomposition temperature causes the insulation to loose its compressive strength and resiliency, but not its thermal performance. Mineral fibre is not suitable for long term service at process temperatures above the indicated limit, particularly when it will be subject to external loads (i.e., wind) or vibration. With Owner's prior written consent, mineral fibre may be installed for service above the indicated temperature limit.
Material for -175ºC to 482ºC temp range is Cellular Glass (Pittsburgh Corning Foamglass or approved equivalent) for piping or equipment in areas that are likely to be submersed.
By introducing their model of neural excitability in 1952, Alan Lloyd Hodgkin and Andrew Huxley not only shed light on the mechanism underlying a very important phenomenon in Physi
Q. Describe facing material? Facing Materials: These materials when added to the moulding sand tend to obtain smoother and cleaner surfaces of castings, help easy peel
Backup Purge Backup purge gas can also be used to protect the under side of the weld and its adjacent base metal surfaces from oxidation on the time of welding . Uniformity
Larson-Miller parameter: For material of example of calculate life in hours at temperature of 900oC, and at σ = 20 MPa. Solution Larson-Miller parameter is given by
Choke: This is incorporated in the main air passage and used to control the air quantity to supply rich mixture. While starting an engine, the choke shuts off the air supply to th
If a Laboratory experiment, the following data were recorded with rope Break dynamometer : Diameter of fly-wheel = 1.2 m Diameter of the rope = 12.5 mm Speed = 200 r.p.m.
What are properties of couple
Discover the suitable diameter of the shaft: A shaft is required to fail while the torque on the shaft is 20 kN-m. Discover the suitable diameter of the shaft of the modulus o
a beam ABC is simply supported at A and C and caries a couple equal to 100kN applied clockwise at B
If Engine Does Not Start in Wet or Damp Weather Causes of Problem Remedy Insulators are not clean and dry Fuel t
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