Yes I did. For Zone airflow sizing, I have selected 'Sum of space airflow rates' and for space airflow sizing I have selected 'Individual peak space loads'. By doing so, I expect the coil L/s to be equal to sum of Individual peak space loads. But the results are different.
I need some clarification on following:
The 'Air system sizing summary report' generated from Hap software defines different airflow rates in 'central cooling coil data'. They are
a)Coil L/s at month/time
b)Max Block L/s at month/time
c)Sum of peak zone l/s.
The 'Supply Fan sizing data' also...
Occupancy classification of Cinema comes under Assembly group (A2) as per International building code. You must follow International building code chapter 3 for occupancy classification and chapter 9 for requirement of sprinkler and standpipe systems.
Thanks Cdxx and RossABQ. Can I put the same question in other way. If I make load calculations for any space and if I get 0.5cfm/sq.ft as the supply air, Do I need to maintain minimum 1 cfm/sq.ft or the calculated airflow is enough. I read somewhere that minimum 1cfm/sqft (5l/s/sqm) is to be...
Thanx for the response Mr.willard3. Being an engineer my interpretition on Ashrae 62.1 is that ventilation is not required in unoccupied mode and the ventilation system must turn off. I want to know if there is any other standard/code requirement for providing ventilation during unoccupied mode.
Cdxx /Energyprofessional, what if we schedule the occupancy (time when the zone is occupied) and switch off the ventilation for unoccupied time period. Is this correct according to Ashrae 62.1?
Ashrae 62.1 describes the minimum ventilation requirements for occupied zones/breathing zones considering the maximum expected occupancy in that zone and zone area. What would be the ventilation rate in unoccupied mode. Will it be calculated same way as for occupied mode considering occupancy to...
Hi everyone. I have a question regarding Air changes in occupied space. I am very much clear on Ashrae 62.1 Outdoor air requirements. My concern is about the total supply air changes that is to be maintained in any space. For example: A room has outdoor air requirement of 210 l/s following...
There is a college campus (single building with large area) fully protected with sprinkler system. The building has some open spaces (with some tress and plants) where new construction is required. The new construction will be for offices, activity hall, assembly hall etc. How the fire...
As per IBC, minimum condition to have standpipe in a building is occupancy level must be more than 9.1m (30feet).Standpipe requirement given in IBC is only for Class I and Class III type. It does not say when Class II type of standpipe is required. NFPA 14 also states only the locations of Class...
International Building Code defines high rise building as one where the occupied floor height is more than 22.8m. Please let me know what is the minimum height or number of floors required for the stairwell to be pressurized. I have an office building with Ground plus 3 storey. Each storey is 5...
I am working on a project which involves multiple facilities. We have a water tank and a pump room on site. Our client needs only one single water line in the site which will be common to both fire water and potable water. At every building inlet point, there are 2 lines entering the building...
I have two questions. 1) How does Control mode Density/Area(CMDA) Sprinklers differ from Control mode Specific Application(CMSA) Sprinklers. NFPA 13 (2010 Edition) section 14.2 & 14.3 describes these two. The design criteria for CMSA sprinklers is well described in Table 14.3.1 of NFPA13 but the...
