Tank volume sizing is an entirely different problem from pipe sizing and doesn't fit into the GA. There are multiple tank purposes and you would need to simulate a variety of EPS runs for fires and other emergencies. Basically, there are three purposes for tank volume 1. Equalization 2. Fire flow 3. Other emergencies Then you need to decide how you combine these volumes. Do you simply add them (which is probably oversizing) or is it equalization plus the larger of fire and emergency? Then the performance depends on min and max tank levels and you also need to consider water quality and how you would operate the pumps to fill them. A good reference for this is the tank sizing chapter in Mays' "Water Distribution System Handbook".
↧