Thanks so much for everyone's input. It has been very helpful and given me much to think about!!!
The system does have multiple units as our client always wants redundancy and safety factors etc etc.
Thanks again.
Sorry, it was a very busy morning. We are assuming 1,200,000 BTUH heat being added to the space from equipment, lights, etc that we need to cool. The room has no exterior walls to worry about.
We are also trying to maintain 70 Degrees DB with 50 Degrees F Dewpoint (it's about 50% RH).
I will...
We have a project where the required temperature in the room is 70 deg F +/- 3. Someone told me that in this situation, you have to plan on 67 degree F supply air an d73 degree F return air. Someone else said to provide the required cooling we should discharge 57 degree F air. Will 57 degree...
We use Carrier's HAP program. It does a pretty good job. It's fairly easy to understand and input all the information. It does handle DX units, but Trane reps complain about the outputs. Trane uses 400 CFM per ton as a rule of thumb and HAP will size equipment differently.
HAP has it's...
Thanks for your inputs. After discussions with the client, they decided to stick with the normal innefficient methods. Oh well, we tried. I agree with wayne29446, people don't like to try new things or think outside the box.
Thanks again for the advise.
Has anyone had experience with Demand Controlled Ventilation (DCV) specifically using CO2 sensors? Does this type of system work well? How sensitive are the sensors (if one person walks into a room, will it notice and increase the airflow)? We are looking to use this to control the flow...
This might not help you much, but I work in Oregon. We use a program called CodeComp. It is set up specifically for Oregon Energy Code and we get it through the State Energy Department. I input all the information about the building (% glazing, wall construction, etc. etc.....). Then it will...
We are designing an exhaust system that requires fire sprinklers in the duct including the discharge stack. The fire marshall is concerned that the high velocity in the duct will blow the water up the stack and out. Does anyone know what velocity it would take to blow water up the stack? I...
