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  1. Vishal Kumar

    Compressor shutdown

    How is a normal compressor shutdown can you explain in short steps , I know first anti surge valve is opened and then it is tripped via the motor or turbine but in case of emergency shutdown , power most likely goes first followed by ASV opening, I feel both have the same impact that is Settle...
  2. Vishal Kumar

    IPDS

    Can anyone suggest me any resources or guidelines to fill a particular instrument ipds like on off valve , flowmeter and control valve particularly because I have seen everyone using different max min values as a percentage of the normal value like flow pressure temperature. I want to know and...
  3. Vishal Kumar

    Utility delta T

    Yes I am talking about the cooling tower range i.e in and out temperature difference
  4. Vishal Kumar

    Utility delta T

    Hello all, I have a general question as to why the utility delta T across a cooling tower or chiller (water based liquid utilies) are we considering 5C. What is special about this number , also currently my CW delta T in plant is 2C , so is my statement wrong that : Some heat exchange Equipment...
  5. Vishal Kumar

    Storage tank temperature maintenance

    Yes heater for the re-heat only. We submitted various scenarios with costing but this was accepted.
  6. Vishal Kumar

    Storage tank temperature maintenance

    We are moving ahead with thermic fluid circulation in limpet & tank inserted electrical heater bundle. Thermic fluid already we are using as utility for a melt crystalliser, adding to the capacity.
  7. Vishal Kumar

    Utility line control valve

    Thanks it is a good point, although convered but initially was missed
  8. Vishal Kumar

    Utility line control valve

    For any utility piping with a control valve on return side , controlling temperature of a equipment or process line in circulation. Do you think it will be a good idea to put a bypass valve for the control valve or will it be hazard that on opening bypass process temperature can go out of...
  9. Vishal Kumar

    Steam limpet pressure drop

    Hello , our product is not phenol, it is a chlorinated methyl pyridine
  10. Vishal Kumar

    Steam limpet pressure drop

    My concerns are , although on a daily basis we are thinking but have to close soon for fabricator to start working :- 1. Pump is 20m3/hr for product unloading & so didn't use circulation HE as it will take a lot of time for heating through only circulation. (Can keep it for emergency though) No...
  11. Vishal Kumar

    Steam limpet pressure drop

    Yes I should that what is concerning. I have yet to take it and I am working on it now , I will get back with result.
  12. Vishal Kumar

    Steam limpet pressure drop

    Thanks for the valuable input , max liquid level ? I didn't mention anything about that. Material has a melting point of 63 so we are unloading it into a tanker so it has to be kept at 80-85 C all the time. I missed to show insulation which will be there over the tank. It's a final product...
  13. Vishal Kumar

    Steam limpet pressure drop

    Dear all, Please find the attachment where we are using steam Saturated (3.5kg/cm2g) for heating through limpet to keep internal material in liquid state (melting point 63C). I have two doubts , considering the size of this tank the height , is it a good idea to use one single limpet through the...
  14. Vishal Kumar

    Corioliis mass flow meter no reading

    I think it was commissioned earlier and any water trial/solvent trial taken then any feedback received? Or is this a sudden occurrence?
  15. Vishal Kumar

    Corioliis mass flow meter no reading

    Better to check if everything power supply, hot loop, range incorporation , fluid data is incorporated then to move on to next point. Orientation seems fine. Also it is at pump discharge, please check pump duty point /normal operating point , range should be covered within the pump operating...
  16. Vishal Kumar

    Storage tank temperature maintenance

    Thank you everyone else , i will share maximum possible available data with me for next question, but please understand it was a genuine attempt because many times experience teaches a lot so i thought in this forum someone can say me things which me/team in my company may not think of at the...
  17. Vishal Kumar

    Storage tank temperature maintenance

    Mr MJC think what you want it doesn't matter , i wanted to understand the method and not have a exact calculated answer with the data , I also didn't hide anything intentionally. You can chose not to respond instead of acting smart.
  18. Vishal Kumar

    Storage tank temperature maintenance

    It is a fixed roof tank, and i understand the concern but we have to find a way so that it never solidifies and also have a plan B which will work in case it solidifies. No agitation possible so I don't have much experience apart from limpeting or internal coil. I have considered heating 80 to...
  19. Vishal Kumar

    Storage tank temperature maintenance

    Jacketed road tanker it will be transported in solid and melted on reaching destination
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