Progress in the development of high-performance thermal systems has stimulated interest in methods to improve heat transfer, popularly called “heat transfer augmentation”. It has become second generation heat transfer technology. New techniques are primarily employed in a variety of thermal apparatuses encountered in the process and chemical industries, including oil refineries and gas production plants as well as in power generation plants (thermal, nuclear, solar, geothermal, ocean thermal, etc.).
This course describes the most important and practical issues related to the optimum selection of various types of augmentation techniques employed for heat exchangers working with single-phase fluids (heaters or coolers) or with phase change fluids (evaporators, reboilers, condensers, etc.) The course will briefly survey the basics of fluid flow and heat transfer in thermal apparatuses and continue with a detailed explanation of the most efficient passive (extended surfaces, fins, swirl flow devices, etc.) and active techniques (surface and fluid vibration, etc.) for single-phase flow as well as for fluids with phase-change (two-phase flows). Performance evaluation criteria (PEC) related to these techniques, as well as technical and economical issues, such as manufacturing costs, problems in operation, maintenance issues, and others, will be covered
Understand the heat transfer processes and fluid flow in thermal equipment to apply suitable heat augmentation techniques
Learn how to be familiar with principles of thermal design of heat exchangers
Select the optimal heat transfer augmentation techniques for a given industrial application
Gain skill in estimating the degree of deterioration and inefficiency of heat exchangers and the ways to improve it by heat augmentation method
Understand how to analyze problems in everyday operation and how to combine heat exchanger alteration technique with heat transfer augmentation
Supervisors and Operators
Process Plant Shift Leaders
Environmental and Safety Technicians
Mechanical Technicians
Maintenance Engineers
Thermal Efficiency of Heat Transfer equipment
Performance Indicators
Analysis of Costs: Operating and Maintenance costs
Need for Heat Transfer Augmentation
Classification of Augmentation Techniques
Performance Evaluation Criteria (PEC)
Conduction Heat Transfer - Concept of Thermal Resistance
Basics of Fluid Flow in various Geometries
Pressure drop calculation and selection of Pumps and Compressors
Convection Heat Transfer
Heat transfer with phase change: Boiling and Condensation
Solutions to various Heat Transfer problems
Most Efficient Passive Techniques
Extended Surfaces and Fins
Swirl Flow Devices and Fluid Additives
Most Efficient Active Techniques
Stirring devices and Rotating surfaces
Surface and Fluid Vibration
Applications of Finned Surfaces in Forced Convection
Most Efficient Passive Techniques
Treated and Rough Surfaces
Extended Surfaces and Displaced Enhanced Devices
Swirl Flow Devices and Fluid Additives
Most Efficient Active Techniques
Surface and Fluid Vibration
Electromagnetic Field
Solutions to problems of Boiling and Condensation
Application of Compound Augmentation
Cost-benefit Analysis: Manufacturing Costs vs. Benefits of Augmentation Techniques
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