That is great that you are on the path to sitting for your PE. Becoming a licensed professional is the single most important milestone of your professional career.
I have been in the consulting business since I graduated over 10 years ago. I can tell you that design and consulting is like a...
Everyone uses slightly different symbols for different things. Every symbol on the drawing set should be on the legend. If it isn't, then the above suggestion of calling the engineer and asking him is what you have to do.
Does anyone know of a manufacturer who offers a NEMA 4 hot water unit heater? I have only been able to find electric unit heaters with a NEMA 4 rating. It seems very odd to me that I can find an electric unit heater that is NEMA 4 but not a hydronic one. Thanks for your help.
water penetration is totally dependent on the individual louver that you spec. I usually use Ruskin, they have all of that performance data on their website for download. Be careful with doing a transition at the louver, if it isn't deep enough you will get uneven velocity across the face of the...
greg,
many times yes, the stated requirements do not get met. the client is often not technically capable of even realizing this without it being pointed out to them. in the current economic climate, trying to sue the client for non-enforcement of RFP criteria is a risky move.
just barely good enough to meet code isn't really the definition of efficient design. often times, the standard of care is greater than code, and what about environmental stewardship and pushing the envelope to advance technology and the profession. My point is that client criteria often ask for...
don't know what your pressure is, but type L copper will do the trick for most CA applications. Black steel may be cheaper as raw material than copper, but will take more labor to put in. threading or welding always takes longer than brazing for the size pipe you are dealing with.
It sounds like your boss is copping out on his responsibilities. The only other possibility is that he's testing you to find out what you can do. IMO, a better tst would be to give you a project and a budget and see if you can design to the budget, basically test whether you can control your...
HVAC is a great field to take advantage of the rising "energy economy". Good luck with your new position. Take advantage of the opportunity. As an entry level engineer, you should try to identify a mentor as soon as you can. Try to learn as much as possible about specific tasks, but also pay...
So I just read the whole "co-worker not claiming all hours worked" thread that included an interesting discussion of engineering fees, or the lack thereof. I would like to get a thread going that is focused solely on this topic.
I have seen the commoditization of engineering services accelerate...
407c is not a drop-in replacement for 22. different refrigerants have different operating pressures and heat transfer characteristics. all equipment is designed to operate with a specific refrigerant. a modification of the the equipment is almost always required when changing refrigerants. at...
Does anyone know where to find an extra large paint booth. I am looking for something 100'Lx60'Wx40'H. Based on my research so far, this dramatically exceeds anything that is readily available as a packaged unit. Is a built-up unit the only option here?
control valves should be located at the lowest pressure point in the system. this gives the greatest possible range and finest resolution, in other words better control.
maybe this "commissioning set" is our autoflow device, which typically contains the manual air vent. air vent always goes on...
Does anyone know much about press fit copper pipe used in domestic water, hydronic, and gas applications? One example is ProPress. I have seen this stuff and, frankly, I am not impressed. I don't really trust it to hold up over an extended time (30+ yrs). To my knowledge, there is nowhere that...
heat transfer effectiveness of the coil will decrease as the delta between the air and water decreases. read the heat exchanger section of your heat transfer textbook. like MintJulep says, LMTD determines heat transfer for a heat exchanger, it is not a simple delta T equation due to the...
