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Maximum allowable pressure drop on cold side 8. Optimization of Heat Exchanger Design Parameters for Hydrocarbon Refrigerant Systems S. Jain and C. W. Bullard ACRC TR-233 September 2004 For additional information: Air Conditioning and Refrigeration Center University of Illinois Mechanical & Industrial Engineering Dept. trailer Selection of stream temperature specifications. Microsoft Word - TR-233 all 08apr05.doc By continuing you agree to the use of cookies. When we first receive an inquiry for a heat exchanger, the first step is to analyze the application. The objective is to obtain the shell and tube side heat transfer coefficients.

Copyright © 2020 Elsevier B.V. or its licensors or contributors. Likewise, if the calculated pressure drop exceeds the maximum defined, then a new geometry must be designed to ensure a pressure drop reduction. At this stage also the choice of materials applied has to be made.

Experimental set-up and procedure 2.1. 2009-02-28T18:01:13-06:00 In this case, a new proposal for the geometry must be made and step 4 to 7 must be repeated.

of heat exchanger includes its dimensions such as length, diameters, height, width, thickness, material type, flow configuration, number of heat exchanging units, fin distribution,..etc. Setting shell side and tube side pressure drop design limits. Heat exchange equipment can be used either as major equipment, or auxiliary (stand-alone) equipment. Setting shell side and tube side pressure drop design limits. At this stage, the design engineer performs a thermal calculation.

The first step in the engineering design of a new heat exchanger is to finalize the process parameters such as - 1.

0000003160 00000 n The optimum thermal design of a shell and tube heat exchanger involves the consideration of many interacting design parameters which can be summarised as follows: Process 1.

Step 1: Analyzing the Application When we first receive an inquiry for a heat exchanger, the first step is to analyze the application.

0000036815 00000 n Then, all the goals were optimized together, considering the priority of the goals, and the optimum results were found to be fin width of 15 mm, angle of attack of 15°, fin height of 100 mm, span-wise distance between fins of 20 mm, stream-wise distance between fins of 10 mm, span-wise distance between slices of 20 mm, stream-wise distances between slices of 20 mm at a flow velocity of 4 m/s. The calculated area is compared with the area defined in step four and a check is made to see if the pressure drops are within the design limits. ÿØÿà JFIF ,, ÿÛ C

Heat exchange equipment is designed to transfer heat energy from one environment to another, i.e., for transferring heat from hot to cold heat transfer medium. Getting the Heat Transfer Coefficient (HTC or K) enables to find the heating area and hence sizing the heat exchanger.

Calculation of expansion joint dimensions (to compensate for shell and tube side differential expansion due to temperatures differences. 0 FçÏNT¨ãR(EÞ²Æ(u³CìèªÎÓ(ÞQ é&c

The effects of eight design parameters on the heat-transfer and pressure-drop characteristics of the heat exchanger were determined using the Taguchi method.

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. 2009-02-28T18:01:13-06:00 https://doi.org/10.1016/j.apenergy.2004.10.002. 0000001109 00000 n Instrumentation. 4. The better we understand the physical properties of the fluids involved, the more accurate will be the design of the heat exchanger. Q = Q г = Q х Design temperature and pressure 3. Adobe Acrobat 9.0 Paper Capture Plug-in 2.2 Interactions Among Design Considerations 93 Summary 94 References 94 Review Questions 95 … Is it a food industry application? 3. 0000000016 00000 n HEAT EXCHANGER SELECTION AND SIZING (ENGINEERING DESIGN GUIDELINE) Author: Rev 01 - A L Ling Rev 03 – Viska Mulyandasari Checked by: Karl Kolmetz TABLE OF CONTENT INTRODUCTION 6 Scope 6 Why Use Heat Exchangers 7 Heat Exchanger Type 8 (A) Shell & Tube Exchanger 8 (B) Plate Heat Exchangers 14 Design Consideration 17 2. r¡ilC!?

3. The next step is to analyze the fluids or gasses involved: the product side fluid and service side fluid. \$.' In this study, the effects of the longitudinal and lateral seperations of consecutively enlarged-contracted arranged fin pairs, widths of the fins, angle of attack, heights of fins and flow velocity on the heat and pressure drop characteristics were investigated using the Taguchi experimental-design method. Inlet / Outlet temperature for hot fluid 5.

endstream endobj 257 0 obj <> endobj 209 0 obj <> endobj 210 0 obj <> endobj 211 0 obj <> endobj 212 0 obj <> endobj 213 0 obj <> endobj 214 0 obj <> endobj 215 0 obj <> endobj 187 0 obj <> endobj 189 0 obj <>stream Selection of stream temperature specifications. xref The drawing package contains details of the various components of the heat exchanger, including shell; tubes, expansion joints, connections, etc. x�b```f``������-�  "�@���q�sd0`d�X����AJ��P�u���^��\�/�d�>�Efi��C���*X�2\$m`�a�Pk���T�+LL[��jM�B��Ǳ9R]���-Zғy�q�Je)���̞"Ǧ. <]>> Inlet / Outlet temperature for cold fluid 6. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Optimum design parameters of a heat exchanger. Heat Exchanger Design Example..(a) Objective: Design a double pipe heat exchanger with bare inner multi-tubes that can be used to cool engine oil with cold sea water. 0000000676 00000 n Steps four to six are then repeated until a satisfactory design with suitable geometry is obtained.