2-4. Gasoline vapors are vented to the atmosphere when an underground gasolinestorage tank is filled. If the tanker truck discharges into the top of the tankwith no vapor control (known as the splash fill method), the emission of gaso-line vapors is estimated to be 2.75 kg/m' of gasoline delivered to the tank. Ifthe tank is equipped with a pressure relief valve and interlocking hose connec-tion and the tanker truck discharges into the bottom of the tank below thesurface of the gasoline in the storage tank, the emission of gasoline vapors isestimated to be 0.095 kg/m of gasoline delivered (Wark et al., 1998). Assumethat the service station must refill the tank with 4.00 m' of gasoline once aweek. Draw a mass balance diagram and estimate the annual loss of gasolinevapor (in kg/y) for the splash fill method. Estimate the value of the fuel that iscaptured if the vapor control system is used. Assume the density of the con-densed vapors is 0.800 g/mL and the cost of the gasoline is $1.06 per liter.

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Answered: spia ted to be 2.75 kg/m of gasoline…

spia ted to be 2.75 kg/m of gasoline deliver with a pressure relief valve and interloc ruck discharges into the bottom of the ta ne in the storage tank, the emission of g (Khowi

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter2: Electrical Components And Circuits

Section: Chapter Questions

Problem 2.8QAP

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Question

2-4. Gasoline vapors are vented to the atmosphere when an underground gasoline
storage tank is filled. If the tanker truck discharges into the top of the tank
with no vapor control (known as the splash fill method), the emission of gaso-
line vapors is estimated to be 2.75 kg/m' of gasoline delivered to the tank. If
the tank is equipped with a pressure relief valve and interlocking hose connec-
tion and the tanker truck discharges into the bottom of the tank below the
surface of the gasoline in the storage tank, the emission of gasoline vapors is
estimated to be 0.095 kg/m of gasoline delivered (Wark et al., 1998). Assume
that the service station must refill the tank with 4.00 m' of gasoline once a
week. Draw a mass balance diagram and estimate the annual loss of gasoline
vapor (in kg/y) for the splash fill method. Estimate the value of the fuel that is
captured if the vapor control system is used. Assume the density of the con-
densed vapors is 0.800 g/mL and the cost of the gasoline is $1.06 per liter.

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