Vertical Storage Tank Height Diameter Ratio

Temperature stratified storage tank outline and features.

Vertical storage tank height diameter ratio.

Dear sir what is the preferred l d ratio for atmospheric tanks. So no limitation on h d ratio as per api650 620. Say for atmospheric water storage tanks length greater than diameter or diameter greater than length is preferred. The temperature stratified storage tank is unique in that its water depth is rather shallow 5 m while the tank diameter is quite wide 290 m 2.

Does l d ratio also varies with increase in tank capacities. What is the significance of choosing optimum l d ratio in atmospheric storage tanks. Tanks l d ratio posted in industrial professionals. About the highest aspect ratio tanks that i have seen were shop built tanks 10 foot diameter and 38 feet high about 3 8 to 1 give some thought to allowing 3 to four feet minimum all around the tank.

Awwa d100 or api 650 gives option for both ratios. Basically it depends on local juricdiction which defines mx height of storage tank. Furthermore a distributor capable of temperature stratification is installed in the center. Tank sizes volume description rough diameter when h d 1 100 m3 small 5 m 100 1 000 m3 medium 5 10 m 1 000 10 000 m3 large 10 20 m 10 000 m3 very large 20 m larger than 200 000 m3 is that economical 60 m height and diameter limitations.

In india there is max height limitation for hc storage tanks is 20 mtrs. However it is noticed that for some tanks it doesn t follow this limit. For example fresh amine storage tank.