An efficient model development and experimental study for the heat transfer in naturally ventilated inclined roofs

Building and Environment

Volumn 81, Issue , 2014, Pages 296-308

  Tong, Shanshan ^a   Li, Hua ^a  

^a NANYANG TECHNOLOGICAL UNIVERSITY   (Singapore)

Author keywords

Heat transfer modeling; Natural ventilation; Roof heat gain; Thermal resistance circuit

Indexed keywords

AIR; COMPUTATIONAL FLUID DYNAMICS; COMPUTER SIMULATION; HEAT FLUX; HEAT RESISTANCE; HEAT TRANSFER; VENTILATION;

CIRCUIT TRANSFORMATION; COMPUTATIONAL FLUID DYNAMICS ANALYSIS; HEAT TRANSFER MODEL; LABORATORY EXPERIMENTS; NATURAL VENTILATION; RADIATION AND CONVECTION; ROOF HEAT GAIN; THERMAL RESISTANCE CIRCUITS; MODEL DEVELOPMENT;

ROOFS;

ACCURACY ASSESSMENT; AIRFLOW; BUILDING; COMPUTATIONAL FLUID DYNAMICS; FLOW MODELING; HEAT FLUX; HEAT TRANSFER; ROOF; VENTILATION; EXPERIMENTAL STUDY; NUMERICAL MODEL;

EID: 84905245007     PISSN: 03601323     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.buildenv.2014.07.009     Document Type: Article

References (35)

1. Dimoudi A., Androutsopoulos A., Lykoudis S. Summer performance of a ventilated roof component. Energy Build 2006, 38:610-617.
2. Puangsombut W., Hirunlabh J., Khedari J., Zeghmati B., Win M.M. Enhancement of natural ventilation rate and attic heat gain reduction of roof solar collector using radiant barrier. Build Environ 2007, 42:2218-2226.
3. Lai C.-m., Huang J.Y., Chiou J.S. Optimal spacing for double-skin roofs. Build Environ 2008, 43:1749-1754.
4. Chang P.-C., Chiang C.-M., Lai C.-M. Development and preliminary evaluation of double roof prototypes incorporating RBS (radiant barrier system). Energy Build 2008, 40:140-147.
5. Susanti L., Homma H., Matsumoto H. Anaturally ventilated cavity roof as potential benefits for improving thermal environment and cooling load of a factory building. Energy Build 2011, 43:211-218.
6. Roels S., Deurinck M. The effect of a reflective underlay on the global thermal behaviour of pitched roofs. Build Environ 2011, 46:134-143.
7. Biwole P.H., Woloszyn M., Pompeo C. Heat transfers in a double-skin roof ventilated by natural convection in summer time. Energy Build 2008, 40:1487-1497.
8. Chami N., Zoughaib A. Modeling natural convection in a pitched thermosyphon system in building roofs and experimental validation using particle image velocimetry. Energy Build 2010, 42:1267-1274.
9. Gagliano A., Patania F., Nocera F., Ferlito A., Galesi A. Thermal performance of ventilated roofs during summer period. Energy Build 2012, 49:611-618.
10. Miller W., Keyhani M., Stovall T., Youngquist A. Natural convection heat transfer in roofs with above-sheathing ventilation. Thermal performance of the exterior envelopes of buildings 2007.
11. Azevedo L.F.A., Sparrow E.M. Natural convection in open-ended inclined channels. JHeat Transf 1985, 107:893-901.
12. Sanvicente E., Giroux-Julien S., Ménézo C., Bouia H. Transitional natural convection flow and heat transfer in an open channel. Int J Therm Sci 2013, 63:87-104.
13. Alzwayi A.S., Paul M.C. Transition of free convection flow inside an inclined parallel walled channel: effects of inclination angle and width of the channel. Int J Heat Mass Transf 2014, 68:194-202.
14. Said S.A.M., Habib M.A., Badr H.M., Anwar S. Turbulent natural convection between inclined isothermal plates. Comput Fluids 2005, 34:1025-1039.
15. Lau G.E., Sanvicente E., Yeoh G.H., Timchenko V., Fossa M., Ménézo C., et al. Modelling of natural convection in vertical and tilted photovoltaic applications. Energy Build 2012, 55:810-822.
16. Ciampi M., Leccese F., Tuoni G. Energy analysis of ventilated and microventilated roofs. Sol Energy 2005, 79:183-192.
17. Rohsenow W.M., Hartnett J.P., Ganić E.N. Handbook of heat transfer fundamentals 1985, McGraw-Hill Inc. 2nd ed.
18. Ciampi M., Leccese F., Tuoni G. Ventilated facades energy performance in summer cooling of buildings. Sol Energy 2003, 75:491-502.
19. Incropera F.P., DeWitt D.P. Fundamentals of heat and mass transfer 2002, Wiley, New York. 5th ed.
20. Kennelly A.E. Equivalence of triangles and stars in conducting networks. Electr World Eng 1989, 34:413-414.
21. Chapter 25, ASHRAE, heat, air, and moisture control in building assemblies-fundamentals 2009, American Society of Heating, Refreigeration and Air-Conditioning Engineers.
22. Code on envelope thermal performance for buildings 2008, Building Construction Authority, Singapore.
23. Alzwayi A.S., Paul M.C. Effect of width and temperature of a vertical parallel plate channel on the transition of the developing thermal boundary layer. Int J Heat Mass Transf 2013, 63:20-30.
24. Maliska C.R., Marcondes F. Elliptic calculations of natural convection flows in arbitrary channels. 8th int. conf. on laminar and turbulent flow, Swansea, UK 1993, 388-399.
25. Morrone B., Campo A., Manca O. Optimum plate separation in vertical parallelplate channels for natural convective flows: incorporation of large spaces at the channel extremes. Int J Heat Mass Transf 1997, 40:993-1000.
26. Campo A., Manca O., Morrone B. Numerical analysis of partially heated vertical parallel plates in natural convective cooling. Numer Heat Transf Part A 1999, 36:129-151.
27. Launder B.B.E., Spalding D.D.B. Lectures in mathematical models of turbulence 1972, Academic Press.
28. Ansys fluent theory guide 14.0, Fluent Inc.
29. Procedure for estimation and reporting of uncertainty due to discretization in CFD Applications. JFluids Eng 2008, 130:078001.
30. Tong S., Li H., Zingre K.T., Wan M.P., Chang V.W.C., Wong S.K., et al. Thermal performance of concrete-based roofs in tropical climate. Energy Build 2014, 76:392-401.
31. Miyamoto M., Katoh Y., Kurima J., Sasaki H. Turbulent free convection heat transfer from vertical parallel plates. Proceeding of the 8th international heat transfer conference 1986, 593-1598.
32. Onur N., Sivrioǧlu M., Aktaş M.K. An experimental study on the natural convection heat transfer between inclined plates (Lower plate isothermally heated and the upper plate thermally insulated as well as unheated). Heat Mass Transf 1997, 32:471-476.
33. Baskaya S., Aktas M.K., Onur N. Numerical simulation of the effects of plate separation and inclination on heat transfer in buoyancy driven open channels. Heat Mass Transf 1999, 35:273-280.
34. Hanselman D.C., Littlefield B. Mastering MATLAB 6: a comprehensive tutorial and reference 2001, Prentice Hall.
35. Villi G., Pasut W., Carli M. CFD modelling and thermal performance analysis of a wooden ventilated roof structure. Build Simul 2009, 2:215-228.