Study on air-side heat transfer and pressure drop for fin-tube heat exchangers

다국어 초록 (Multilingual Abstract)

Experimental measurements and numerical analysis have been carried out in order to investigate performances of air-side heat transfer and pressure drop for six types of heat exchangers with various fin shapes. An air-enthalpy calorimeter is used in this work. Numerical analysis shows a good agreement with experimental measurements. Measurements for six types of heat exchangers at various air-velocity are compared with each other. Heat transfer per unit area appears to be nearly the same in the range of 0.7∼0.9 m/s while it varies within 3% at 1.5 m/s. The numerical results show that most of heat transfer takes place through fins for all types and majority of heat transfer happens from the 1St row.

목차 (Table of Contents)

• 1. INTRODUCTION
• 2. EXPERIMENTAL APPARATUS AND PROCEDURE
• 2.1. Experimental apparatus
• 2.2. Experimental method
• 3. DATA REDUCTION
• 3.1. Heat transfer coefficient
• 3.2. Pressure Drop
• 4. NUMERICAL ANALYSIS
• 5. RESULTS AND DISCUSSION
• 5.1. Heat Transfer Rate and Pressure Drop
• 5.2. Temperature Distribution in Fin
• 5.3. Heat Transfer Coefficient versus Fan Power
• 5.4. Heat Transfer and Pressure Drop versus Slit Height
• 6. CONCLUDING REMARKS
• ACKNOWLEDGMENTS
• REFERENCES