I'd have to disagree with Mechanical declining, at least in the EPC field. I'm working in Houston and recruiters are struggling to feel positions down here. On average, I'm getting about a call every couple of weeks looking for rotating equipment or heat transfer engineers.
Gas Packagers, Inc. out of Denver, CO could possibly help. I've worked with them before. The contact there is Dave Moss, 303-297-8100 x3012. http://thecompressorcompany.com
Does anyone know some manufacturer's of SS vacuum breakers that would be able to be installed in -60 deg F service? I am all "Googled" out. The fluid is aqua ammonia.
Thanks,
Colin
This website might give you some idea of the non-reverse ratchet. http://www.usmotors.com/Products/ProFacts/1-307.htm
Basically, in vertical pumps when pump stops the water will flow backwards. This will result in the pump/motor rotating backwards. If the pump were to trip and go into this...
David,
Thanks for the help. Could you please let me know what the origin of the "Petroleum" method is? I've looked in several references and haven't been able to locate it elsewhere. I know that if I present it to the Project Engineer, he will want to know where it came from.
Thanks,
Colin
Mike,
The Reynolds number is app. 4400, so it is considered turbulent flow. The annuli are part of a ciculation loop. The fluid is pumped through the center (HDPE) pipe and then it comes back up on the outside, so the inner pipe will actually have a greater pressure on the ID than the OD. We...
We are in the process of performing the hydraulic calculations for a series of annuli that consist of an inner pipe of HDPE and outer pipe of carbon steel. Does anybody have any experience in taking into consideration the two different friction factors present on the outside flow?
Thanks,
Colin
