Thermoeconomic Lifecycle Cost Optimization of an Annular Fin Heat Exchanger


  • L. A. Khan
  • F. M. Mahfouz


In this paper the design of annular fin heat exchanger based on economic optimization has been carried out. The optimization process targeted minimizing the lifecycle cost of annular fin heat exchanger that has the same frontal area, effectiveness and heat load of available practical standard geometry exchangers. The lifecycle cost includes both capital and operating costs. Beside the pumping cost, both the cost of exergy destruction due to irreversibilities and 10% inflation rate are included in the operating cost. The optimization process is implemented using Evolutionary Algorithm (EA). Evolutionary Algorithm is a numerical technique which is initiated by randomly generating a set of possible solutions. The optimized design has shown a significant decrease in the lifecycle cost as compared with that of standard geometry that has minimum lifecycle cost. Based on the optimized design relations for Colburn and friction factors are developed.


Smith, B.S. and Coull, A. (1991). Tall Building Structures: Analysis and Design. John Wiley and Sons, Inc., New York.

Gerasimidis, S. Efthymiou, E. & Baniotopoulos, C. C. (2009). “Optimum Outrigger Locations of High-rise Steel Buildings for Wind Loading.” EACWE 5 Florence, Italy.

Kicinger, R. (2006). “Evolutionary Developmental System for Structural Design.” Developmental Systems Papers from the AAAI Fall Symposium. Technical Report FS-06-03, The American Association for Artificial Intelligence, Menlo Park, CA, 1-8

Kareem, A. Kijewski, T. Tamura, Y. (1999). Mitigation of Motions of Tall Buildings with Specific Example of Recent Applications. Wind and Structures, Vol. 2, No. 3 pp 201-251

Mir, M.A. and Moon. K.S. (2007). Structural Development in Tall Buildings: Current Trends and Future Prospects. Architectural Science Review Vol. 50.3, pp 205-223

Jayachandran, P. (2009). “Design of Tall Buildings. Preliminary Design and Optimization.” Proceedings, National Workshop on High-rise and Tall Buildings, University of Hyderabad. Hyderabad, India.

Azeem, I. (2011) Drift Comparison of Different Structural Systems for Tall Buildings. M.Sc. thesis Department of Civil Engineering, UET, Lahore.

ASCE 7-05 (2006). “Minimum Design Loads for Buildings and Other Structures.” American Society of Civil Engineers, Virginia 20191.

Choi, H.S. (2009). “Super Tall Building Design Approach.” Proceedings of The American Institute of Architects Continuing Education Systems Program.

Kowalczyk, R.M. Sinn, R. Kilmister, M.B. (1995). Structural Systems for Tall Buildings. McGraw-Hill, Inc., New York.






Mechanical Engineering, Automotive, Mechatronics, Textile, Industrial and Manufacturing Engineering