cetane no. and sulphur required in diesel fuel for euro-IV

2 Answers   IOCL,

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What is a good source of equations for calculating discharge flowrates from accidental releases?

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CHEMICAL MATERIAL BALANCE - EXAMPLE 2.1 : Two methanol-water mixtures are contained in separate tanks. The first mixture contains 40.0 wt % methanol and the second contains 70.0 wt % methanol. If 200 kg of the first mixture is combined with 150 kg of the second, what are the mass and composition of the product? The symbol of weight percent is wt %.

1 Answers  

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Explain how can you estimate the efficiency of a pump?

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What is the angle of repose and what are its applications in the chemical industry?

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PROCESS DESIGN - EXAMPLE 21.3 : 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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from which book shud i will prepare for the hpcl and various company exma i m fresher and my basic is not strong could u suggest from where to start

7 Answers   IOCL,

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why relative humidity is different in different places

3 Answers  

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How can I remove/decrease TDS from sewage waste water? At the moment it is 900gm/l. What is recommended TDS level to dispose sewage water in sea?

2 Answers   OGDCL,

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What is the chemical name of Silica gel?

2 Answers  

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Explain can large temperature differences in vaporizers cause operational problems?

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what is difference between precipitation and crystalisation

2 Answers  

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