motor vs pump

1 Answers   Inogent Laboratories,

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What is minimum flow required of NG having BTU value of 920 btu/scf for flame stability of LBTU gas of BTU value 220 BTU/SCF against the flow 80KPPH.

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Why is steam added into the cracker in thermal cracking?

2 Answers  

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Hi, I am Gurunathan. I am in need of ONGC, IOCL, DRDO technical test ( chemical engineering)and general aptitude questions. If anyone has kindly post it to me soon.

0 Answers   Nelco,

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What are some common causes of gas pipeline vibration 20 carbon steel line?

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How is waste heat boilers categorized?

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Explain the significance of the angle of repose holds in the chemical industry?

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Question 64 – According to a heuristic of chemical engineering plant design, assume a pressure difference dP = 4 psi for each 10-ft rise in elevation. A pump is needed to pump liquid from a storage tank at a lower elevation to a heating tank at a higher elevation with the elevation difference of 60 ft. (a) Find the pressure loss due to such elevation. (b) If the required minimum inlet pressure to the heating tank is 9 psi, with 1 control valve is installed between pump and heating tank, what is the dP minimum required for the control valve and the entrance to the heating tank when the heuristic mentions that at least 10 psi is required for the control valve? (c) The pressure at the inlet of the pump is 8 psi and the flowrate of the liquid produces pressure head of 50 psi. What is the total pressure produced by the pump? (d) Assume a pipeline dP of 2 psi / 100 ft for liquid flow in a pipe according to heuristic, what is the approximate maximum length of the pipe in ft that can be installed between the pump and the heating tank?

1 Answers  

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What are some common problems associated with dense phase pneumatic conveying?

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Explain can large temperature differences in vaporizers cause operational problems?

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What is the maximum permissible Earth to Neutral voltage in an electrical system.

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