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Pressure Analysis on a Carrier Waterbox using Computational Fluid Dynamics

Student: Shrinidhi Ravi (MS)

Advisor: Dr. Mookesh Dhanasar

Corporate Sponsor: Carrier Corporation

Abstract

This project focuses on a Computational Fluid Dynamics (CFD) study conducted on Carrier Corporation waterbox for water cooled chillers. Carrier Corporation is consistently working on ways to improve the efficiency of their products. This takes the form of research and development in the use of alternative coolants, heat exchanger arrangements and geometric designs. To date Carrier Corporation only has data on the total pressure drop across the water-cooled condenser. In this project the pressure at key locations along the water-box are evaluated. Analytical results calculated are compared against the CFD results obtained using ANSYS. Based on these initial results, design recommendations are made to Carrier Corporation.

Introduction

Approach

Research objective

Results & Discussions

11th Annual COE Graduate Poster Presentation Competition

 

 

Analytical method:

Computational Fluid Dynamics using ANSYS

Analytical results: Focus on P2

 Simulations

1

2

3

Average total pressure @inlet(Pa)

176.5089

1034214

1000593

Average total pressure @interface(Pa)

131.4757

1034147

1000529

Pressure difference (Pa)

45.0332

67

64

Pressure difference (Psi)

0.006531

0.0097

0.009282

TWO PASS

FRONT VIEW

SIDE VIEW

Post -processing

Pre-processing

Solver

Post-processing

Conservation of mass & Bernoulli’s Principle

Mechanical Engineering Department

Pre-processing

Inlet

Outlet

Solver

  • Solver => Fluent: Model => k-epsilon: Material => Fluid => water-liquid
  • Cell zones to be assigned to the fluid (i.e., water-liquid)
  • Boundary Conditions
    1. Mass flow inlet : Outflow outlet
    2. Pressure inlet : Mass flow outlet
    3. Mass flow inlet : Pressure outlet (5% drop)

Acknowledgements

Nozzle

Flange

Division plate

Dished cover

Carrier chiller team (upper management & CLT team), NCAT faculty & NCA&T 2022 senior design MEEN undergraduates.