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Pratical Heat Transfer / CHAPTER 8 - AIR COOLED HEAT EXCHANGERS
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| CHAPTER 8 - AIR COOLED HEAT EXCHANGERS |
$54.00 |
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| 8.2 DESCRIPTION AND TERMINOLOGY |
| 8.3 SUITABILITY FOR AIR COOLING |
| 8.3.1 Options Available for Cooling |
| 8.3.1.2 Direct contact cooling |
| 8.3.1.3 Use of raw water on a ‘once through’ basis |
| 8.3.1.4 Indirect cooling with a secondary coolant |
| 8.3.1.5 Cooling water from an evaporative cooling tower |
| 8.3.1.6 Cooling water from a dry cooling tower |
| 8.3.1.7 Cooling water from an air cooled heat exchanger |
| 8.3.1.8 Direct cooling in an air cooled heat exchanger |
| 8.3.2 Choice of Cooling System |
| 8.3.2.2 Process considerations |
| 8.3.2.6 Ambient conditions |
| 8.4 SPECIFICATION OF AN AIR COOLED HEAT EXCHANGER |
| 8.4.2 Thermal Duty and Design Margins |
| 8.4.3 Process Pressure Drop |
| 8.4.4 Design Ambient Conditions |
| 8.4.4.1 Dry bulb air temperature |
| 8.4.5 Process Physical Properties |
| 8.4.6 Mechanical Design Constraints |
| 8.4.6.1 Standard specifications |
| 8.4.6.2 Materials of construction |
| 8.4.6.4 Tubing dimensions |
| 8.4.6.5 Temperature limitations |
| 8.4.6.6 Airside design clearances |
| 8.4.6.8 Fan characteristics |
| 8.4.9 Economic Factors in Design |
| 8.5.1 Control of the Process Fluid |
| 8.5.2 Control of the Air Flowrate |
| 8.5.2.1 Changing motor speeds |
| 8.5.2.2 Changing fan blade pitch angle |
| 8.5.3 Control of Air Temperature |
| 8.5.4 Effect of Weather on ACHE Control |
| 8.5.6 Natural Convection Performance |
| 8.6.1 Assessment of Whether Relief is Necessary |
| 8.6.2 Estimation of Heat Input |
| 8.6.3 Estimation of the Potential Required Relief Rate |
| 8.6.4 If necessary consider means of reducing the heat input |
| 8.7.2 Manual Checking of Designs |
| 8.7.2.1 Mean temperature difference |
| 8.7.2.2 Heat transfer rate |
| 8.7.2.3 Process pressure drop |
| 8.7.3 Computer Assessment |
| 8.7.3.2 Process flow distribution |
| 8.7.3.3 Air flow distribution |
| 8.8 FOULING AND CORROSION |
| 8.8.2.2 Protective coatings |
| 8.8.2.3 Sacrificial tubes |
| 8.9.2 Preparation for Performance Measurements |
| 8.9.4 Process Flow Distribution |
| 8.9.5 Air Side Measurements |
| 8.9.5.3 Pressure measurements |
| 8.10.2 Methods of Cleaning |
| 8.10.4 Preferred Contractors |
| 8.11 MECHANICAL MAINTENANCE |
| APPENDIX A8 - Preliminary Estimation of ACHE Size and Cost |
| A8.1.1 Linear Heat Release Curves |
| A8.1.2 Non-linear Heat Release Curves |
| A8.1.3 Correction Factors |
| A8.2 Limitations and Accuracy |
| SYMBOLS USED IN CHAPTER 8 |
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