Actually, I am not concerned with selection of a winning bidder. My firm has a niche market that we cater to and we have been selected by the clients to do the jobs.
And, YES, we were selected because of engineering qualifications.
I just want to make sure we have the proper licensing to...
My firm may have the opportunity to do a few projects internationally. Projects may include China, Russia, Niger, Saudi Arabia and Kuwait.
Can anyone tell me if it is possible for a U.S. engineer to obtain any type of reciprocal agreement with any of these countries?
Thanks and I look forward...
I read the following somewhere recently:
"If you enjoy what you do (I would also assume that means where you are doing it) then you will never have to work a day in your life."
I have been very fortunate and only changed jobs one time while in the consulting business. When I decided to give...
Katmar,
Is m^3/sec the preferred HVAC airflow units in metric?
During my searches on the internet and in ASHRAE the units I saw were liters/sec.
Any assistance on preferred units for all metric HVAC and plumbing/piping flows, pressures and heat values would be apprciated.
Once again...
Can anybody out there help me with a metric equivalent to the old tried and true formula of:
Q = 1.08 x CFM x delta T
where:
Q - Heat quantity (BTU/Hr)
CFM - Cubic Feet per Minute
Delta T - Change in temperature - Deg F
Thanks in advance.
The reason for installing the valve "backwards" is not for loss reductions, but for safety. If the globe and stem become damaged and seperated, or "fail", the valve will fail in the closed position, not the open position.
This is the way I have been taught by my boss who designed steam systems...
I have a pressurized methane tank @ between 11 and 14 psig. The methane contains moisture which condenses during the compression process the same way moisture condenses during an air compressor cycle.
I need to select an automatic drain valve for this application, BUT there is one small...
As an engineer who has designed around the installation of hundreds of direct fired MUAUs over the past 15 years, I have experienced no problems with these units. The only installations for these designs, in my opinion, is industrial settings that will afford no possibilities of recirculation...
One other thing must be taken into account. If you are planning on using a packaged system (ie., rooftop unit), you must consult with the manufacturer. As a general rule, (at least according to my local reps) a packaged unit is only capable of accepting approximately 25-30% of the total...
Our firm has designed and installed several warehouse installations of BigAss Fans. The owner actually came back to us to add more to the same facility.
I have seen these fans in candle making facilities and the worked wonderfully.
Hope this helps.
As far as ventilation, I would provide 6-10...
If you are looking for single pipe pressure drops, try this link to McQuay's website.
http://www.mcquay.com/eprise/main/mcquaycom/designsolutions/designtools/MQC_designtools
Download the Pipesizer program and install it. This site also has Psychrometrics and Duct Sizing software available.
My company is easing toward 3-D design with Autodesk Building Services, which is based on Autocad Architectural Desktop. We are beginning to utilize 3-D in the architectural phases of design. I have been told that when you complete an architectural design in 3-D that you just a few steps away...
If you are getting condensation on the walls, your RH is too high in the space, or the air is not being mixed properly to be destratified.
Are most of the problems you see occuring in the winter or during the summer?
Is the pool heated? (I would assume that it is, being in Denver.)
The best...
mhayas,
The CFM will not change due to your ductwork. What will change, though, is the static pressure you need to specify your fan for. The static calculations will need to be as you have said. I would also add a safety factor of your choosing.
Just to be sure you have sized your CFM...
Bend over, take it on the rear and then make it right. You will suffer far less in the long run (by correcting it up front and not patching a new system), and make better friends with your clients (who then know that you will take care of them and their pocketbooks).
Another option is to...
Can anyone tell me how to contact Penn Ventilation Corporation? I have tried www.pennvent.com and no web-site is found. I have an existing fan I need to check on.
Thanks ahead for the help!
All of this was taken as you have written. Being in the consulting business, I am used to collecting information and analyzing and utilizing it as appropriate.
Thanks for all of the additional advice and concern.
