see these

http://www.diva-portal.org/smash/get/diva2:588138/FULLTEXT01.pdf

http://www.nfpa.org/research/fire-protection-research-foundation/projects-reports-and-proceedings/for-emergency-responders/fireground-operations/evaluation-of-fire-flow-methodologies

http://www.fa.uni-lj.si/filelib/1_strani_predmetov/alojz_muhic/pozarna_varnost_v_objektih/2012-2013/prevod_2.pdf

Thank you very much for the link.

Are you still looking or you have enough information?

Sir,

We calculated the fire flow rate by using two methods that is ISO and NFA. The maximum flow rate for a building we got 933g/m which is converted to 423768 (approximately four lakhs) litre. We have to design the storage tank of this capacity. So in this what criteria and studies we have to do Sir. Also for location of the tank.

Hi,

My experience is with offshore structures. Water needed  for suppressing fire ( known as fire water) are kept in caisson. However, sea water can also be used.

For civil structures, I think you must have roof thanks to have the pressure. If the fire water tanks are on the ground, then you need pumps. I don't know how much you can rely on town water network (fire hydrants).  This amount of water is too much to be supplied by the fire department's fire engine. If the building is tall, then roof tank is the only viable solution.