Determine the mass-transfer coefficient for the process

Assignment Help Finance Basics

Reference no: EM131318218

A wetted-wall column, as illustrated in Figure 30.4, is used as a mass-transfer device for transferring ethyl acetate liquid to an air stream by a mass-transfer limited evaporation process. At the current conditions of operation, the inlet air stream bulk velocity is 0.2 m/s, the temperatures of the gas and the liquid are maintained at 27°C, the total system pressure is 1.0 atm, the column diameter is 0.05 m, the column length is 10 m, and the vapor pressure of ethyl acetate is 0.080 atm.

a. Determine the mass-transfer coefficient for the process at the current conditions of operation. You may assume that the gas phase represents a dilute system.

b. As the gas moves up the tube, it picks up ethyl acetate vapor. Develop a mathematical expression to predict the ethyl acetate vapor concentration in the gas stream exiting the top of the tube. Then, calculate the ethyl acetate concentration in the gas stream exiting the tube. At the specified conditions of operation, what is the overall evaporation rate of ethyl acetate vapor in g mol/h if the inlet air stream contains no ethyl acetate vapor?

Reference no: EM131318218

Questions Cloud

Prepare a schedule of change from an accrual basis : Prepare a schedule of change from an accrual basis to a cash basis income statement.- Using the schedule of change from accrual basis to cash basis income statement computed in present the cash provided by operations, using the direct approach and ..

Frank smith plumbing : Analyze the case study, "Frank Smith Plumbing." Analyze the "Frank Smith Plumbing's Financial Statement" spreadsheet. Compare the cost of the truck to the cash flow records

Actual cash value coverage for personal property : Ann Chovey has a homeowner’s policy with actual cash value coverage for personal property. Her four-year- old genuine imitation leather naugahyde sofa was ruined by an infestation of mice. It would cost $5,000 to replace the sofa. The sofa had an est..

Identify the autism technology daily use : Autism, a condition referred to as autistic disorder in the brain, is a lifelong developmental disability affecting social and communicative functioning which make communication with other people is limited and complicated. Treatment for autism co..

Determine the mass-transfer coefficient for the process : Determine the mass-transfer coefficient for the process at the current conditions of operation. You may assume that the gas phase represents a dilute system.

Problem regarding the baumol model : For Leo, Inc. and according to the Baumol model, what is Leo's Inc. average cash balance if the total cash needed for transactions annually is $7,569,000 and the company can hold marketable securities that yield 10 percent, and then convert these ..

Security enabled parallel connection for intercom : How to generate many of the signals and used it to the concern field of communication system and process. The project is designated as educational tools such as in the colleges or training institutions, to give a clear understanding of signals typ..

Discuss why other contract types were not selected : Explain what contract type (FAR Part 16) would you select for this procurement and why? Discuss why other contract types were not selected.

Prepare the statement of cash flows for the year ended : Prepare the statement of cash flows for the year ended December 31, 2011, using the indirect method for net cash flow from operating activities.

User Account

All Pages