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  • Users: SELM005
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  1. SELM005

    Heat of Dilution

    Can anyone tell me whether diluting nitric acid in water from 13m to 3m is an exothermic process and most importantly if so by how much? I understand this is a slightly chemistryish question but I've tried Perry's and searched the internet but I can't find an answer anywhere.
  2. SELM005

    Pressure rating at higher T

    Hi, I have a pressure vessel that has been tested to a pressure of 130psi (9barg) at ambient conditions ie. 25C. Does anyone know what the pressure rating of this vessel will be at the fault condition of 190C or how to work it out?
  3. SELM005

    Proving a relief valve is not neccessary

    Hi I have got a 4 stage evaporator, the first stage of which is heated by LP steam. The steam pressume in the evaporator is 1.6 bar and the pressure upstream of the inlet control valve is 2.5 bar. The evaporator is pressure tested to 9 bar so I want to prove the relief valve is uneccessary so...

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