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Q. Explain External Pressure Design?
Determine requirements for external pressure based on the expected operation of the vessel, and add a suitable operating margin to establish the external design pressure and coincident temperature.
Consideration must be given to the effects of introducing air into the vessel, if vacuum relief devices are used. Vessels in steam service shall be designed for full vacuum, and consideration shall also be given for vessels in services that may be subject to steam out.
Closed System: The system that can exchange energy with the surrounding but not the mass. The quantity of matter hence remains fixed. And the system can be described as cont
Changes in Mechanical Properties along with Tempering: Tempering enhances the toughness and ductility of quenched steel though decreases hardness. Following figure demonstrate
ESSENTIAL S OF A GOOD BOILER: - Should be capable of producing the required Steam at the required pressure for minimum fuel required. - Should be capable of stan
common formula for first law of thermodynamics #Minimum 100 words accepted#
steel ball v/s cotton ball of same weigt which is easy to lift
Determine the net work: Q: 5 m 3 o f air at 2 bar, 27°C is compressed to 6 bar pressure following PV 1.3 =C . It is expanded subsequently adiabatically to 2 bar. C
DERIVATION & ITS SIGNIFICANCE
Q. Explain the use of bare electrode? This type of electrode is also known as plain electrode. No flux covers on this electrode. These types of electrodes are used for D.C. sup
Diode: It allows the current to flow in one direction only and offers infinite resistance in other direction. It rectifies the alternating current that is why we call it rectifie
Concep t of Temperature: The temperature is thermal state of body which describes the degree of hotness or coldness of body. If the two bodies are brought in contact, heat wi
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