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P M V Subbarao Professor Mechanical Engineering Department I I T Delhi

Published byFernando Romero Guzmán Modified over 5 years ago

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Presentation on theme: "P M V Subbarao Professor Mechanical Engineering Department I I T Delhi"— Presentation transcript:

1 P M V Subbarao Professor Mechanical Engineering Department I I T Delhi
Multi Pass DPHX P M V Subbarao Professor Mechanical Engineering Department I I T Delhi Understanding the Limits for Economics !!! Crazy Ideas May get Backfired!?!?!

2 Temperature Variations in Double Pass HX.

3 1-2 Shell with Better Flow Configuration

4 Modified Definitions for Library of Ideas
TEMA : An authorized body for innovation & Standardization. Shell side fluid : 1 Tube side fluid : 2

5 TEMA – E : One parallel & One counter Tube Flows : Devided Shell Flow

6 TEMA 1-2 G Shell & Tube

7 TEMA 1-2 H Shell & Tube

8 TEMA 1-2 J Shell & Tube

9

10 dz

11

12

13

14 Modified Definitions

15 TEMA – E : One parallel & Two counter Tube Flows

16

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18 TEMA – E : Two parallel & Two counter Tube Flows

19 TEMA 1-4 J Shell & Tube

20 Multiple Shell and Tube HXs

21 Multiple Shell and Tube HXs
General accepted rule of thumb for heat exchanger design is to design such that F > 0.8. F increases with increasing number of multiple shells in series for constant values of Pi and Ri. The F equation for multiple shells can be used by redefining R and P as: where

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1 Dept. of Energy Technology, Div. of Applied Thermodynamics and Refrigeration Tube diameter influence on heat exchanger performance and design. Single.

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