Effect of heat loads and ambient conditions on thermal comfort for single-sided ventilation

详细信息    查看全文

• 作者：David Park (1)
  Francine Battaglia (1)
  
  1. Department of Mechanical Engineering ; Virginia Tech ; Blacksburg ; VA ; 24061 ; USA
  
• 关键词：single ; sided ventilation ; natural ventilation ; thermal comfort ; building energy
• 刊名：Building Simulation
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：8
• 期：2
• 页码：167-178
• 全文大小：3,214 KB
• 参考文献：1. Allocca, C, Chen, Q, Glicksman, LR (2003) Design analysis of single-sided natural ventilation. Energy and Buildings 35: pp. 785-795 CrossRef
  ANSYS FLUENT 12.0 User鈥檚 Guide. Ansys Inc, Canonsburg, PA, USA
  ASHRAE Standard 55-2010 Thermal Environment Standards for Human Occupancy. American Society of Heating, Refrigerating and Air Conditioning Engineers, Atlanta, GA, USA
  2. Awbi, HB (2003) Ventilation of Buildings. Spon Press, London
  3. Brodrick, JR, Westphalen, D (2001) Uncovering auxiliary energy use. ASHRAE Journal 43: pp. 58
  4. Cheuong, JOP, Liu, CH (2011) CFD simulations of natural ventilation behaviour in high-rise buildings in regular and staggered arrangements at various spacings. Energy and Buildings 43: pp. 1149-1158 CrossRef
  5. Cho, YJ, Awbi, HB (2007) A study of the effect of heat source location in a ventilated room using multiple regression analysis. Building and Environment 42: pp. 2072-2082 CrossRef
  6. Chow, WK, Li, J (2007) Numerical simulations on thermal plumes with k-蓻 types of tubulence models. Building and Environment 42: pp. 2819-2828 CrossRef
  7. El-Agouz, SA (2008) The effect of internal heat source and opening locations on environmental natural ventilation. Energy and Buildings 40: pp. 409-418 CrossRef
  8. Emmerich, SJ, Dols, WS, Axley, JW (2001) Natural Ventilation Review and Plan for Design and Analysis Tools. National Institue of Standards Technology, NISTIR 6781.
  9. Feng, J, Xu, Z, Jie, Y (2008) Natural ventilation potential analysis of office building in China. Journal of Tongji University 36: pp. 92-96
  10. Gan, G (2000) Effective depth of fresh air distribution in rooms with single-sided natural ventilation. Energy and Buildings 31: pp. 65-73 CrossRef
  11. Incropera, FP, Witt, DP, Bergman, TL, Lavine, AS (2007) Fundamentals of Heat and Mass Transfer. John Wiley and Sons, New York
  Quickspecs. HP L1908w 19-inch Widescreen LCD Monitor.
  12. Kaye, NB, Hunt, GR (2010) The effect of floor heat source area on the induced airflow in a room. Building and Environment 45: pp. 839-847 CrossRef
  Compact Refrigerator: 46-94683/9.
  13. Larsen, TS, Heiselberg, P (2008) Single-sided natural ventilation driven by wind pressure and temperature difference. Energy and Buildings 40: pp. 1031-1040 CrossRef
  14. Mahajan, BM (1987) Measurement of interzonal heat and mass transfer by natural convection. Solar Energy 38: pp. 437-466 CrossRef
  15. Patankar, SV (1980) Numerical Heat Transfer and Fluid Flow. Hemisphere Publishing, New York
  16. Ravikumar, P, Prakash, D (2009) Analysis of thermal comfort in an office room by varying the dimensions of the windows on adjacent walls using CFD: A case study based on numerical simulation. Building Simulation 2: pp. 187-196 CrossRef
  17. RIBA Royal Institue of British Architects (2014). Available at http://www.architecture.com/SustainabilityHub/Designstrategies/Air/1-2-1-2-Naturalventilation-stackventilation.aspx.
  18. Roache, PJ (1994) Perspective: A method for uniform reporting of grid refinement studies. ASME Journal of Fluids Engineering 116: pp. 405-413 CrossRef
  19. Schaelin, A, Moser, A, Mass, J (1992) Simulation of airflow through large openings in buildings. ASHRAE Transactions 98: pp. 319-328
  20. Starakakis, GM, Vrachopoulos, M, Markatos, NC, Koukou, MK (2008) Natural cross-ventilation in buildings: Building-scale experiments, numerical simulation and thermal comfort evaluation. Energy and Buildings 40: pp. 1666-1681 CrossRef
  21. Stoakes, P, Battaglia, F, Passe, U (2011) Predicting natural ventilation flows in whole buildings. Part 1: The Viipuri Library. Building Simulation 4: pp. 263-276 CrossRef
  22. Stoakes, P, Battaglia, F, Passe, U (2011) Predicting natural ventilation flows in whole buildings. Part 2: The Esherick House. Building Simulation 4: pp. 365-377 CrossRef
  Annual Energy Review 2007.
  International Energy Outlook 2013.
  23. Mass, J (1992) Air flow through large openings in buildings. Energy Conservation in Buildings and Community Systems Programme Annex 20 Technical Report (Subtask 2: Air Flows between Zones).
  24. Villi, G, Pasut, W, Carli, M (2009) CFD modeling and thermal performance analysis of a wooden ventilated roof structure. Building Simulation 2: pp. 215-228 CrossRef
  
• 刊物类别：Engineering
• 刊物主题：Building Construction, HVAC and Refrigeration
  Engineering Thermodynamics and Transport Phenomena
  Atmospheric Protection, Air Quality Control and Air Pollution
  Environmental Computing and Modeling
  Chinese Library of Science
  
• 出版者：Tsinghua University Press, co-published with Springer-Verlag GmbH
• ISSN：1996-8744

文摘

Natural ventilation is an effective method to save energy required to condition buildings and to improve indoor air quality. Designing a naturally ventilated building is a greater challenge than designing a mechanically ventilated building because natural ventilation highly depends on weather, which changes continuously. Another factor that may alter air movement and thermal conditions in the building is the presence of heat loads and furniture. The objective of the current study is to examine the effects of various environmental conditions and room configurations on both airflow distribution and thermal conditions in a room. In this study computational fluid dynamics (CFD) was used to model single-sided buoyancy-driven ventilation in a room with a door. Experimental and numerical data from the literature were used to initially validate the CFD, and the results agreed fairly well. Various heat loads and furniture were added to the room to examine their effects on airflow stratification and thermal conditions. Overall, the conditions in a room were not significantly affected by additional heat sources. Lastly, cooler ambient conditions at the doorway were modeled, and the room was unable to achieve comfortable thermal conditions.