Ok kids, hold on to your hats...
I am working on a 4 story science and mathmatics building for a local college. The system will consist of rooftop units with chilled water coils and pre-heat coils, chillers, boiler, pumps etc, with vav boxes serving the classrooms and offices. In trying to size...
Hey guys and gals,
I am running some loads for a new restaurant. I was given the following parameters to run loads:
Weather Data Knoxville, Tn
Maintain between 70-73 degrees cooling in the space
total of 160 occupants
The space is open from 12-2 for lunch, and from 6-9 pm for dinner.
The...
I am working on a project for a local 4H camp. They have dormitories where the kids sleep, up 50 per dorm, with a shared shower/toilet room. 4 showers and 4-5 toilets. Currently there is no exhaust at all (not sure how they got away with that, as the windows are not operable). The shower/toilet...
So, i am wrapping up a project for an automotive injection moleding facility. There is a maintenance shaft that runs through the plant, with an open set of stairs on one end and a normally closed hatch at the other. It's about 120' long, 8' tall. The only piping in the tunnel is carrying plastic...
Ok, so i was handed a new project the other day here at the office : a brewery that will offer co-op. They will let others come in and use the equipment to brew beer. I have some equipment cut sheets from the owner. One question i have for the architect that no one has asked yet is if the hops...
Hey guys, sorry if this has been covered before. It comes up from time to time on jobs i work on. I have an elementary school addition. We are positive by 2,300 cfm after all the exhaust and o.a. as required by the student loads. I swear i remember doing a calculation years ago for building...
Ok guys, i need to design some new HEPA filters into an existing duct system. Having trouble finding information on what size filter box i would need. My existing supply ductwork is 30x22 and carries 5,000 cfm. Also, i need to determine what the static pressure drop will be, because i am pretty...
Ok, i couldn't sleep last night and got to thinking... At my very first engineering job in Tampa back in 1994, my company was designing a middle school using low-temp systems.. the SA was 44 degrees to the space. Not sure of the CHWS temp, but i believe it was high 30's.. i wasn't involved with...
Can anyone point me in the direction of a document that can summarize the effects a dirty fan have over the efficiency vs. a clean fan? A dirty fan will increase the static required to operate and if too much builds up, could create an unbalanced fan leading to premature bearing failure.
Or am...
