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Fortunately, the Texas board allows reference from a PE even if is not in a direct-supervision role. I ccould have plenty of references, some from people working as engineering consultants for 30 years, but they are not PEs. Only one of our customers was PE, but on a non directly related field...

Unfortunately, a dear professor and chairman of the mech engineering department was the only professor that held a PE license, and he was my first choice for recommendation; but sadly, he had passed away 2 years ago. I started sending volunteering applications with the SPE and ASME communities...

David, thank you for your insight; and by the way, I looked at your profile in your website and my hat's off to you. You have an impressive career and I wish you the best. Now back on topic, the lady from the Texas board was very insistent that my 3 references would have to be PE's, no...

Hey all, Since I'm soon reaching 5 years of experience as a mechanical engineer doing R%D work for a down-hole technology company, I called the Texas Board of Professional Engineers to know the requirements to obtain a PE licence and my current roadblock is the lack of PE references that I...

They are also used quite a bit in dynamic applications such as pistons. Because of their shape they won't fail by being twisted, and also provide two points of sealing vs one provided by standard o-rings.

thanks for your replies, The application will be static and the type of sealing is radial. The material for the housing is steel and its finish is smooth. The idea is to prevent leakage (it is a logging tool, so no mud/sand/dirt and water must come in). I,ve seen other logging tools and also...

Hi fellow engineers, I'm designing a tool that will be in an environment of 15000 - 20000 psi and a temp of 450F. So far I've looked at some examples and done some research about the size and shape of the gland, clearance and materials for the o-rings, but I still have a few questions: Right...

I need to do reaserch in pressure compensation for logging tools, but I've had no luck in finding a good example or diagram. Can someone point me in the right direction? because I've never seen a device like that in real life or even on pictures! I'm pretty lost. A simple diagram explaining...

Yes, that's true. The blower needs to be outside, and I like your idea of having the hot air coming through the sides and returning over the testing chamber. I also agree that sheet metal would be ideal to allow a good heat transfer, but I can't use any metal because the readings of the...

Thanks gwolf. Yes, I feel like I was thrown into a race right after I learned how to walk! But I love the challenge though. Yes, finding the htc has been the most difficult part. At this point, I will settle for an approximate value. I'd like to make an assumption on that, but since I have no...

Thanks, it was really helpful. Maybe I'm complicating things too much, but I wanted the design to be backed up by the math behind it, and to have proper documentation. You were right. I calculated the heat loss going through the insulation and it was significant. I assumed a heat transfer...

I need to design and come up with the analysis of an oven, but just a few guidelines were given to me. I'm a recent grad so I'd like some advice on this because I've never done something like this before. Here are a few guidelines: - The oven is cylindrical. About 5m long and 20 in. diameter -...