400 cfm/sqft ???
Air quantity would vary between 300 to 350 cfm/TR for residential applications, since there may not be very high sensible loads unless very high glazings are there.
Better to do a load calculation.
TDK2 is absolutely right. Not only in Saudi, almost in all of the Middle East countries, where the Sun shows its power for most of the time, the traditional dress is white. Can't figure out why women wear black though. Possibly because, in the olden days, they were more at home than outdoors...
What you call as P&IDs are generated as schematic piping drawings and form part of the drawings issued for piping. Maybe, the terminology of P&ID is not normally used in the HVAC industry. Nevertheless, there are schematics, flow diagrams, made and issued in most cases. Many times, typical...
Talking of controls, the controls or BMS guy does what's known as an Input/Output Summary which helps him to select controllers, sensors, etc. Typical single line flow diagrams are also made in many projects, but not like what's made in the process industry. I have never felt the need to do a...
If I am right, GRP is Glass Reinforced Plastic. Supposed to be a chemically inert material. Have seen this material being used for water tanks, holding tanks, etc.
6 AC/hour is definitely a high figure, if you are talking about taking outside air for air-conditioning a space.
6 AC/hour is normally applied for ventilation only. For normal residential Air-conditoning applications - 1 to 1.5 AC/hour or 10% of supply air should be a good figure...
Absolutely right Rob1972. Carrier has a very nice program, which can help you out on selecting the right type of system depending on the type of your application. It's called "Chiller System Optimizer". It's an inhouse software program and they don't give it outside. The more the...
The extent of savings would depend on the load pattern - i.e. how much of part load requirement exists and the range of condenser entering temperatures which is primarily dependent on the ambient wet bulb temperature - i.e. the savings become more when the equipments operate more and more at...
Two other factors play a big role in the condensing temperature/pressures.
1. Whether it's an air-cooled or water-cooled condenser.
2. Ambient dry bulb temperature for an air-cooled system and ambient wet bulb temperature coupled with cooling tower characteristics for a water-cooled...
Looking from a slightly different perspective - The acoustic consultants talk about a minimum distance between the main duct and the outlet and this varies depending on the NC level required inside. This may mean taking longer routes of ducting, eventhough you could accomplish the same with...
