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Recent content by tomato5

  1. tomato5

    PUMP NPSHA

    littleinch and artisi sirs, we have a question here regarding npsha please do that, do not spend time in idle talk what, does that relieve some unwanted feelings in your sytem? no more correspondence with you two!
  2. tomato5

    PUMP NPSHA

    Gentlemen, thank you but the question was for Npsha, not Npshr, if you read above Required: To calculate Npsha for propane to same datum. Point is to calculate this from the 9.7 ft for ethylene, with somewhat minimal calculations, rather than from scratch (in other words, consider the fairly...
  3. tomato5

    PUMP NPSHA

    Yes, I understand! This is a cryogenic in-pot centrifugal pump designed for ethylene service, but tested on propane Ethylene VP 282 psia SG 0.44 Viscosity 0.074 cp Npsha 9.7 ft to inducer c'l Pumping temp -23 F Flow 2160 gpm Npshr 5.2 ft to same datum Propane VP higher...
  4. tomato5

    PUMP NPSHA

    A PUMP HAS ITS NPSHA DEFINED. IT IS DECIDED TO USE THE SAME PUMP WITH A DIFFERENT LIQUID. THE TWO FACTORS THAT WOULD AFFECT THE NPSHA WOULD BE THE NEW VAPOR PRESSURE AND THE NEW SP GR. IS THERE A RULE OF THUMB TO EVALUATE THE NPSHA WITHOUT HAVING TO DO MORE DETAILED CALCULATIONS? THANK YOU...
  5. tomato5

    sleeve bearings

    sir, for an electrical engineer your answer is very accurate and to the point very impressed thank you
  6. tomato5

    sleeve bearings

    In a sleeve bearing is the temperature of the lube oil film higher or that of the bearing wall? thank you
  7. tomato5

    GPSA 12TH ED FIG 13-27 ATTACHED

    hello i have a question regarding this figure take fluid with k = 1.30 and a compression ratio of 9 go x direction and meet curve which is about 72% isentropic efficiency following the curved path and 72% polytropic efficiency if we take the straight vertical lines we would read about 64%...
  8. tomato5

    three wire female connector

    your answer is clear and thanks but just clarify the connector reads 15 amperes 125 v and we are in the us is this single phase in the garage three connections for single phase? regards
  9. tomato5

    three wire female connector

    green to green is easy on the cable the remaining two are black and white on the female connector one of the screw is silverish, the other is a little yellowish where does the black go, and where the white? i have seen similar questions in other forums one answer said put this on the hot...
  10. tomato5

    API PLAN 76

    ASSUME API PLAN 76 pumps. FOR MOST CASES, WHAT SHOULD BE THE SETTING OF THE P I T IN THE FLUSH LINE? THANK YOU Aamir also could you plese tell me hot to contact the MVPs of our forums
  11. tomato5

    API 684

    i AM NOT CLEAR ABOUT THE SPECIAL PARAGRAPHS OF API 684 LIKE SP------ WHAT IS THEIR SIGNIFICANCE THEY ARE GIVEN RIGHT AT THE END AND ALSO IN BETWEEN ARE THEY INDICATING THE MORE CRITICAL ASPECTS OF API 684 REALLY WHAT ARE THEY? OR WHAT ARE THEY NOT? IF YOU ARE CLEAR ABOUT THE ANSWER...
  12. tomato5

    SHELL AND TUBE HEAT EXCHANGERS

    COULD YOU HELP WITH A CHEMICAL ENGINEERING PROBLEM 1. GASEOUS FLOW 2. AS OPERATING PRESSURE RISES, GAS DENSITY INCREASES CORRECT? 3. PRESSURE DROP IS DIRECTLY PROPORTIONAL TO SQUARE OF MASS VELOCITY ? 4. INVERSELY PROPORTIONAL TO DENSITY ? PLEASE BRIEFLY OUTLINE YOUR REASONING...
  13. tomato5

    STEAM TURBINE CAMPBELL, SODERMAM SAFE GOODMAN DIAGRAMS

    csk62 no, you have answered a lot, and thank you! Are you a turbomachinery specialist in an operating plant, consultant ? Does this system allow that if one is able to achieve an under standing with some one like yourself, then questions could be sent or exchanged with that person rather...
  14. tomato5

    STEAM TURBINE CAMPBELL, SODERMAM SAFE GOODMAN DIAGRAMS

    Hello! This subject is a little specialized so if in this forum there is not a specialist in this area, could you please guide me to the correct forum thank you Briefly, could you tell me the difference between the above four diagrams thank you very much
  15. tomato5

    gas turbine mathematical problems/exercises

    Yes, I was interested in HORSEPOWER, HEAT RATE, etc. thank you
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