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Recent content by badal

  1. badal

    New to the PRV world

    Thank you.
  2. badal

    New to the PRV world

    Assuming that I am going down the right road, how do I get the heat flow rate (heat transfer rate) in btu/hr? I have found charts with the densities, thermal conductivity and various other characteristics of glycol, but I'm striking out getting the phi for equ 2 in 521.
  3. badal

    New to the PRV world

    No offense at all. I actually tried to go back and edit my post because I sound like a jerk.
  4. badal

    New to the PRV world

    I deal in HVAC design every day and never have to worry about PRV's. An expansion tank is usually all we call for. I would expect an expansion tank in addition to this surge/buffer tank. The tank is there to increase the volume of chilled water in what is a very small system. It keeps the...
  5. badal

    New to the PRV world

    The owner has called it a surge tank, but I would have called it a buffer tank. There is no gas volume that I know of. Only chilled water in and chilled water out. I have had the same thoughts about the operating and maximum tank p and t. All that is connected to this system is a chiller...
  6. badal

    New to the PRV world

    The comment above was not directed at anyone that has responded so far. You have been more than helpful. I was just trying to cut any trolls off at the pass.
  7. badal

    New to the PRV world

    All right. I've come full circle on this. I have read API 520 and 521-2008 in their entirety and it appears only two equations matter for this scenario. Before you read on, please note that I am not interested in your comment if it is "your in over your head" or "give up. you don't know what...
  8. badal

    New to the PRV world

    THANKYOUTHANKYOUTHANKYOU!!!! I've been looking for something like that for 3 days.
  9. badal

    New to the PRV world

    Also, I've seen a discussion on this talking about getting those values from hysys. Anyone know what that is and if it has the info for glycol solutions?
  10. badal

    New to the PRV world

    Im sizing for a 30% propylene glycol mixture. Any idea where i can find the MW, specific heats, viscosity of the mixture?
  11. badal

    New to the PRV world

    So your saying it is not up to me to determine the worst case? What tells me where to use a rupture disk? And you are right there will not be much if any profit in this one. The profit is in the next 2,000 if i can pull this off. I have a file from the previous engineer that Im trying to...
  12. badal

    New to the PRV world

    I have been thrown into the world of ASME pressure vessels and PRV sizing. I am a PE, but my experience is in HVAC and plumbing consulting. Not process piping or pressure vessels. I've been asked by a local large manufacturing plant to size a PRV for a small chilled water system surge tank. I...
  13. badal

    Responsible Managing Employee for Fire Protection

    Thank you for your response. I'm getting more comfortable with this as time goes on. This new company would/will be incorporated, so that would protect me personally, I believe. Just don't want to do anything improper to lose my only source of income.
  14. badal

    Responsible Managing Employee for Fire Protection

    I met with the contractor yesterday and we discussed this in some detail. I feel much better about doing this and we are going to make the next steps to gets this division off the ground. I have several questions that only people in the industry can answer, so here goes: 1) At this time we do...
  15. badal

    Responsible Managing Employee for Fire Protection

    I am a licensed engineer in TN and several other states. My firm in a consulting only firm and we provide fire protection design intent drawings on a daily basis. I have been contacted by a contractor, that I do not know, to fill a position in a new division they are trying to start. They...
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