IWA Publishing

Table 4

Summary of the results of system protection with applied optimization

Type, diameter and thickness of pipe	St52 steel pipe of diameter 1,900 mm and thickness 14.2 mm
Air-chamber	Total volume = 10 m²
	Orifice diameter (mm)	Outlet pipe	Inlet pipe
Air-inlet valves	300	32	31
	300	35	34
	300	38	37
	300	41	40
	300	44	43
	300	47	46
Total cost of pipes and water-hammer controllers: US$4,382,170

Type, diameter and thickness of pipe	St52 steel pipe of diameter 1,900 mm and thickness 14.2 mm
Air-chamber	Total volume = 10 m²
	Orifice diameter (mm)	Outlet pipe	Inlet pipe
Air-inlet valves	300	32	31
	300	35	34
	300	38	37
	300	41	40
	300	44	43
	300	47	46
Total cost of pipes and water-hammer controllers: US$4,382,170