Evaporative loss from external floating-roof tanks
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Evaporative loss from external floating-roof tanks

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Published by American Petroleum Institute in Washington, D.C. (1220 L St., N.W., Washington 20005) .
Written in English

Subjects:

  • Oil storage tanks -- Evaporation control.,
  • Evaporation control.

Book details:

Edition Notes

StatementMeasurement Coordination Department.
SeriesAPI publication ;, 2517
ContributionsAmerican Petroleum Institute. Measurement Coordination Dept.
Classifications
LC ClassificationsTP692.5 .E97 1989
The Physical Object
Paginationix, 63 p. :
Number of Pages63
ID Numbers
Open LibraryOL1578965M
LC Control Number91100861

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  Documentation for Evaporative loss from external floating-roof tanks, 3rd ed., Feb. (API publication ). The floating roof reduces evaporative losses by reducing the vapor head space in the tank practically eliminating working losses. The total evaporation loss for floating roof tanks is equal to the standing loss plus the withdrawal loss. materials. Evaporative losses from the external floating roof tanks are limited to losses from the sealing system, roof fittings, and any remaining liquids on the tank walls, when the floating roof falls down. There are very limited studies related to storage tank evaporative . When using floating roof tanks, the roof floats on the surface of the liquid inside the tank and reduces evaporative losses during normal operation. However, when the tank is emptied to the point that the roof lands on deck legs, there is a period where the roof is not floating and other mechanisms must be used to estimate Size: KB.

The aim of the present work is to determine the evaporative losses from external floating storage tanks and to study the absorptivity effects of their exterior surface paint on the losses due to. (1) In accordance with methods described in American Petroleum Institute Publication , Evaporative Loss From External Floating-Roof Tanks (incorporated by reference as specified in § of subpart A of this part); or (2) As obtained from standard reference texts; or.   How To Calculate Losses From External Floating Roof Tank - posted in Tank Blanketing and Venting: I wanted to calculate evaporative losses of naphtha from external floating roof tank. Pl. help. Evaporative losses from floating roofs may come from deck fittings, nonwelded deck seams, and the annular space between the deck and tank wall. In addition, these tanks are freely vented by circulation vents at the top of the fixed roof.

Standing loss pertains to evaporative loss of stock liquid from beneath the floating roof while it is floating. The standing loss L S can be estimated as follows: L S = (F r + F f + F d) P* M V K C File Size: 3MB. Evaporative Loss from Floating Roof Tanks, Third Edition This standard contains methodologies for estimating the total evaporative losses of hydrocarbons from external floating-roof tanks (EFRTs), freely vented internal floating-roof tanks (IFRTs), and domed external floating-roof tanks (domed EFRTs). API MPMS Chapter April Manual of Petroleum Measurement Standards Chapter Evaporative Loss From Floating-Roof Tanks. This standard contains methodologies for estimating the total evaporative losses of hydrocarbons from external floating-roof tanks (EFRTs), freely vented internal floating-roof tanks (IFRTs), and.   The present study is an application of a Gaussian dispersion model to evaluate volatilization losses from tank farms. It reports methodology to estimate evaporation losses of volatile organic compounds (VOCs) from organic liquid in storage tanks. This study used fixed roof and floating roof equations for breathing and working losses. Total loss, the breathing loss Cited by: 3.