Floating Roof Storage Tank Design

The roof rises and falls with the liquid level in the tank.

Floating roof storage tank design. An external floating roof tank is a storage tank commonly used to store large quantities of petroleum products such as crude oil or condensate. Floating roof storage tanks are inherently safer than fixed roof tanks as they essentially eliminate the creation of a vapor space in the tank above the combustible liquid. The floating roof tank animation describes the working principle in the training module. As opposed to a fixed roof tank there is no vapor space in the floating roof tank.

Floating roof storage tanks have their roofs actually resting on the stored liquid and rise and fall as the inventory level changes. Types of floating roofs in storage tanks the principal types of floating roof designs which are installed in tanks which store crude and middle distillate products are summarized below. The model consist of an external single deck floating roof operating in a vertical cylindrical oil storage tank which is filled with oil of density ρ 700 kg m3. These are categorized as external floating roofs which are designed to meet requirements of api standards 650 appendix c.

The dimensions of the tank are 40 m diameter and 23 m height. External floating roof tanks are generally made of steel and only has a floating roof as the top covering. Internal floating roof tank is known as internal floating roof storage tank floating roof oil tank internal floating plate storage tank and internal floating plate oil tank etc. The oil occupies 100 of the total tank volume.

External floating roof tanks have a floating roof which covers the liquid inside. It consists of an open topped cylindrical steel shell equipped with a roof that floats on the surface of the stored liquid. The storage tank design consists of two major designs that is 1 the shell design analysis and 2 the floating roof design. In principle this eliminates tank breathing loss and greatly reduces the evaporative lo.

A floating roof crude oil storage tank of 100 000 bpd capacity was designed taking into consideration the available geotechnical and meteorological information of the location site. Storagetech storage tank internal floating roofs storagetech has been proudly innovating designing manufactiring and installing external and internal pon. Specifically it is an environment friendly and economical storage tank or oil tank installed a floating roof under the vault of the tank usually made of aluminum stainless steel or other material to prevent the liquid from volatilize. In the shell design analysis shell stress design will be performed taking into consideration of all the considerably loading including hydrostatic pressure wind loading and seismic loading.