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tall building 1
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ChrisConley
Mechanical
How about the ASHRAE Design Guide for HVAC in Tall Buildings?
$59 for non-members, $49 for members
$59 for non-members, $49 for members
Folks,
The idea here is to help each other, Chris, as you know, our clients want the answer yesterday, by the time his ashrae book gets to his office, his submission is already due.
I do not have the info for say, but if anyone out there has some specifics, please post for the sake of expediting an answer.
My take is that FCU with dedicated OA system (using heat recovery collecting all the toilet exhaust along the way) would be a good bet, need to think about smoke control though, that would be the more defining strategy to determine your shaft needs. Louvers for fresh air and strategic location of Mechanical equipment needs some serious talk with the architect.
An "engineered smoke control systems" such as "pressure sandwitch" may be needed by your local AHJ, which has a big impact on number smoke dampers in your system.
I'd check with the local Fire Marshall on the accepted practice for tall building smoke control, that should lead you in your system choice.
Incidently, don't expect to find any answers about life safety in any ASHRAE handbook (too much liability for it).
The idea here is to help each other, Chris, as you know, our clients want the answer yesterday, by the time his ashrae book gets to his office, his submission is already due.
I do not have the info for say, but if anyone out there has some specifics, please post for the sake of expediting an answer.
My take is that FCU with dedicated OA system (using heat recovery collecting all the toilet exhaust along the way) would be a good bet, need to think about smoke control though, that would be the more defining strategy to determine your shaft needs. Louvers for fresh air and strategic location of Mechanical equipment needs some serious talk with the architect.
An "engineered smoke control systems" such as "pressure sandwitch" may be needed by your local AHJ, which has a big impact on number smoke dampers in your system.
I'd check with the local Fire Marshall on the accepted practice for tall building smoke control, that should lead you in your system choice.
Incidently, don't expect to find any answers about life safety in any ASHRAE handbook (too much liability for it).
I am currently on a high rise project, and we selected a similar system to cry22 suggestion.
-We used 4-pipe FCU for maximum comfort.
-DOAS does not allow air side economizer, so we did water side economizer to keep the chiller off for most of the winter.
-High rise will need an emergency generator, so you will require a fuel oil system
-I tried to put retrofit boxes on the inlet of the FCU, and control primary air on CO2 (we had classrooms), but it got VE'd out, so now it is a constant volume system.
-perimeter radiation is recommended for occupant comfort, unless if for developer, then ask for double pane glass and wash the glass from overhead with air.
Good Luck
knowledge is power
-We used 4-pipe FCU for maximum comfort.
-DOAS does not allow air side economizer, so we did water side economizer to keep the chiller off for most of the winter.
-High rise will need an emergency generator, so you will require a fuel oil system
-I tried to put retrofit boxes on the inlet of the FCU, and control primary air on CO2 (we had classrooms), but it got VE'd out, so now it is a constant volume system.
-perimeter radiation is recommended for occupant comfort, unless if for developer, then ask for double pane glass and wash the glass from overhead with air.
Good Luck
knowledge is power
ChrisConley
Mechanical
I agree, which is why when I read his post asking for books or reference materials on high-rise design I pointed him to a book on high rise design.
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