Heat and Mass Transfer

, Volume 46, Issue 11–12, pp 1345–1354 | Cite as

An experimental and three dimensional numerical study on the wind-related heat transfer from a rectangular flat plate model collector flush mounted on the roof of a model house

  • Oğuz Turgut
  • Nevzat OnurEmail author


Experimental and three dimensional numerical work was performed to evaluate the average heat transfer coefficients for forced convection heat transfer from the surface of a rectangular flat plate model collector flush mounted on the roof of a model residential house. Examined parameters are the roof tilt angle, windward and leeward orientations. Experiments were carried out for mass transfer using the naphthalene sublimation technique. The final results were presented in terms of heat transfer parameters using the analogy between heat and mass transfer. Numerical study was performed using Ansys Fluent 6.3. Results of experimental study are in good agreement with that of numerical study. It is observed that heat transfer coefficient decreases very slowly with increasing angle of attack and it can be stated that angle of attack does not have a strong effect on heat transfer coefficients in the range investigated. It is also observed that heat transfer coefficients on the leeward orientation are lower than those of the windward orientation. Flow separation was observed on collector surface in leeward orientation.


Heat Transfer Reynolds Number Heat Transfer Coefficient Wind Tunnel Flat Plate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This research was performed under the support of DPT (State Planning Organization) Grant (DPT 97 K121160) and the authors wish to thank the DPT, Turkey, for financial support of this project.


  1. 1.
    McAdams WA (1954) Heat transmission, 3rd edn. McGraw-Hill, New York, p 249Google Scholar
  2. 2.
    Duffie JA, Beckman WA (1991) Solar engineering of thermal processes, 2nd edn. Wiley, New York, p 173Google Scholar
  3. 3.
    Oosthuizen PH, Naylor D (1999) Introduction to convective heat transfer analysis. McGraw-Hill, New York, pp 11–15Google Scholar
  4. 4.
    Ramsey JW, Charmchi M (1980) Variances in solar collector performance predictions due to different methods of evaluating wind heat transfer coefficients. ASME J Heat Transf 102:766–768CrossRefGoogle Scholar
  5. 5.
    Sartori E (2006) Convection coefficient equations for forced air flow over flat surfaces. Sol Energy 9:1063–1071CrossRefGoogle Scholar
  6. 6.
    Drake RM, Berkeley JR (1949) Investigation of the variation of point unit heat transfer coefficients for laminar flow over an inclined flat plate. ASME J Appl Mech 71:1–8Google Scholar
  7. 7.
    Sparrow EM, Tien KK (1977) Forced convection heat transfer at an inclined and yawed square flat plate-application to solar collectors. ASME J Heat Transf 99:507–512CrossRefGoogle Scholar
  8. 8.
    Tien KK, Sparrow EM (1979) Local heat transfer and fluid flow characteristics for airflow oblique or normal to a square plate. Int J Heat Transf 22:349–360CrossRefGoogle Scholar
  9. 9.
    Sparrow EM, Ramsey JW, Mass EA (1979) Effect of finite width on heat transfer and fluid flow about an inclined rectangular plate. ASME J Heat Transf 101:199–204CrossRefGoogle Scholar
  10. 10.
    Sparrow EM, Samie F, Lau SC (1981) Heat transfer from a plate elevated above a host surface and washed by a separated flow induced by the elevation step. ASME J Heat Transf 103:441–447CrossRefGoogle Scholar
  11. 11.
    Sparrow EM, Nelson JW, Lau SC (1981) Wind-related heat transfer coefficients for leeward-facing solar collectors. ASHRAE Trans 87:70–79Google Scholar
  12. 12.
    Kind RJ, Gladstone DH, Moizer AD (1983) Convective heat losses from flat-plate solar collectors in turbulent winds. ASME J Sol Energy Eng 105:80–85CrossRefGoogle Scholar
  13. 13.
    Shakerin S (1987) Wind-related heat transfer coefficient for flat-plate solar collectors. J Sol Energy Eng (Trans ASME) 109:108–110CrossRefGoogle Scholar
  14. 14.
    Onur N (1993) Forced convection heat transfer from a flat-plate model collector on roof of a model house. Warme-und Stoffübertragung 28:141–145CrossRefGoogle Scholar
  15. 15.
    Sharples S, Charlesworth PS (1998) Full-scale measurements of wind-induced convective heat transfer from a roof-mounted flat plate solar collector. Sol Energy 62:69–77CrossRefGoogle Scholar
  16. 16.
    Palyvos JA (2008) A survey of wind convection coefficient correlations for building envelop energy systems’ modelling. Appl Therm Eng 28:801–808CrossRefGoogle Scholar
  17. 17.
    Kendoush AA (2009) Theoretical analysis of heat and mass transfer to fluids flowing across a flat plate. Int J Therm Sci 48:188–194CrossRefGoogle Scholar
  18. 18.
    Kumar S, Mullick SC (2010) Wind heat transfer coefficient in solar collectors in outdoor conditions. Sol Energy 84:956–963CrossRefGoogle Scholar
  19. 19.
    Holman JP (2001) Experimental methods for engineers, 7th edn. McGraw-Hill, New York, pp 51–52Google Scholar
  20. 20.
    Mendes PRS (1991) The naphthalene sublimation technique. Exp Therm Fluid Sci 4:510–523CrossRefGoogle Scholar
  21. 21.
    Sogin HH (1958) Sublimation from disks to air streams flowing normal to their surfaces. Trans ASME 80:61–69Google Scholar
  22. 22.
    Skellands AHP (1985) Diffusional mass transfer. Wiley, New York, p 51Google Scholar
  23. 23.
    Incropera FP, DeWitt DP (2002) Fundamentals of heat and mass transfer, 5th edn. Wiley, New York, p 917Google Scholar

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  1. 1.Department of Mechanical Engineering, Faculty of EngineeringGazi UniversityMaltepe, AnkaraTurkey

Personalised recommendations