Jennifer Tansey 10/20/11. Introduction / Background A common type of condenser used in steam plants is a horizontal, two- pass condenser Steam enters.

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Presentation transcript:

Jennifer Tansey 10/20/11

Introduction / Background A common type of condenser used in steam plants is a horizontal, two- pass condenser Steam enters the condenser through an inlet at the top of the condenser and passes downward over a horizontal tube bundle The tube bundle is made up of individual tubes through which a cooling medium circulates to condense the steam Typically the tubes in the top half of the tube bundle are the “cold,” first pass and the tubes in the bottom half are the “warmer,” second pass

Problem Description The objective of this project is to analyze the tube configuration in a bundle to determine the best arrangement of tubes for the maximum amount of heat transferred to the circulating water The six configurations shown will be analyzed The dark blue denotes the first pass tubes and the light blue denotes the second pass tubes

Current Status Researched previous work performed on two-pass condensers and flow over tubes Determined the mathematical approach to solve the problem under evaluation Established the initial conditions and assumptions for the problem (i.e., condenser dimensions, number of tubes, operating conditions including shell-side and circulating water parameters) Completing the heat and mass transfer algorithm to determine the outlet temperature of the circulating water for the six cases

Current Status Chose an appropriate RANS software (FLOW3D) to model the condenser Beginning the numerical analysis by creating the baseline conditions and geometry in FLOW3D

Next Steps Finish the heat and mass transfer algorithm Model the six cases in FLOW3D Analyze and compare the analytical and numerical results

Milestones / Deadline List MilestoneCompletion DateStatus Submit Proposal9/27/11Completed Create Equation for Heat Transfer in Tubes 10/1/11Completed Perform Analysis for Cases10/15/11In Progress First Progress Report10/21/11Completed Model the Cases11/5/11In Progress Second Progress Report11/11/11- Analyze Results from Numerical Modeling 11/19/11- Compare Analytical and Numerical Results 11/26/11- Final Draft12/2/11- Final Report12/16/11-