Assessment of Passive Architectural Strategies for Natural Ventilation in Libraries within Hot- Humid Climate

Authors(5) :-Moses Iorakaa Ayoosu, Yaik Wah Lim, Pau Chung Leng, Thomas Terna Aule, Kole Emmanuel Gabriel

In buildings, natural ventilation is for human comfort; for odour removal, body and the structure cooling. A previous study revealed that libraries in Nigeria could not function efficiently without artificial ventilation and lighting. Artificial ventilation, aside from economic disadvantages, it is not reliable and anti-sustainability while natural ventilation is reliable, consume less energy, and in other words, it is more efficient when compared with other types of ventilation. The research evaluates the application of passive architectural strategies for natural ventilation in libraries within the hot-humid climate of Nigeria, intending to recommend natural ventilation strategies in libraries. Ten (10) libraries were selected randomly in the study area from both institutional and public libraries. The research conducted using observation schedule, the variables in the research are; Window types, Clerestory windows availability, Door openings, Screen walls, Courtyard, Other openings, use of external shading devices and orientation of the library. The data analysed using descriptive statistic; the results presented using tables, bar charts and pie charts. The research revealed that 29% of the cases studied use external vertical structural shading devices, 36% use horizontal shading devices, 21% use both vertical and horizontal shading devices to deflect solar radiation and 14% do not use any external shading devices. 80% of the libraries studied was oriented toward north-south (NS) direction, while 20% oriented toward east-west (EW) direction. Therefore, the majority of the libraries studied have desired orientation; however, each lacks one of the passive cooling strategies. Adequate natural ventilation in the libraries is achievable by the proper synthesis of the building orientation, proper design of building internal spaces, the proper position of window openings and use of projected window as well as clearstory. More so, further study to enhance natural ventilation configuration for the study area is desirable.

Authors and Affiliations

Moses Iorakaa Ayoosu
Department of Architecture, Faculty of Built Environment and Surveying, Universiti Teknologi Malaysia, Skudai, Johor-Bahru, Malaysia.
Yaik Wah Lim
Department of Architecture, Faculty of Built Environment and Surveying, Universiti Teknologi Malaysia, Skudai, Johor-Bahru, Malaysia.
Pau Chung Leng
Department of Architecture, Faculty of Built Environment and Surveying, Universiti Teknologi Malaysia, Skudai, Johor-Bahru, Malaysia.
Thomas Terna Aule
Department of Architecture, Faculty of Built Environment and Surveying, Universiti Teknologi Malaysia, Skudai, Johor-Bahru, Malaysia.
Kole Emmanuel Gabriel
Department of Architecture, School of Environmental Science, Modibbo Adama University of Technology Yola, Yola, Adamawa. Nigeria

Natural ventilation, Libraries, Window, Orientation and Nigeria.

  1. Al-Tamimi, N. A. M., Fadzil, S. F. S., & Harun, W. M. W. (2011). The effects of orientation, ventilation, and varied WWR on the thermal performance of residential rooms in the tropics. Journal of Sustainable development, 4(2), 142.
  2. Allard, F., & Allard, F. (1998). Natural ventilation in buildings: a design handbook: James & James London.
  3. Anunobi, A., Adedayo, O., Oyetola, S., Siman, E., & Audu, H. (2015). Assessment of Window Types in Natural Ventilation of Hotels in Taraba State. Journal of Environment and Earth Science, 5(2), 117-125.
  4. Ayoosu, M. I. (2016). Post Occupancy Evaluation of Daylighting in Libraries: An Experimental Approach. The International Journal of Science & Technoledge, 4, 150-160.
  5. Ayoosu, M. I. (2018). Daylighting enhancement strategies towards a proposed library for Benue state university Makurdi. (Master Thesis), Modibbo Adama University of Technology Yola Nigeria.
  6. Bakay, A., Bergmann, G., Bodas, J., Papp, I., & Szabo, Z. (1988). Cooling apparatus: Google Patents.
  7. Crosbie, M. J., & Callender, J. H. (1997). Time-saver Standards for Architectural Design Data: The Reference of Architectural Fundamentals: McGraw-Hill Companies.
  8. Drake, S., de Dear, R., Alessi, A., & Deuble, M. (2010). Occupant comfort in naturally ventilated and mixed-mode spaces within air-conditioned offices. Architectural Science Review, 53(3), 297-306.
  9. Dunham, D. (1961). The courtyard house as a temperature regulator. Ekistics, 11(64), 181-186.
  10. Edwards, B. (2009). Libraries and learning resource centres: Routledge.
  11. Freewan, A. A. Y. (2014). ScienceDirect Impact of external shading devices on thermal and daylighting performance of offices in hot climate regions. 102, 14-30.
  12. Hamdy, I., & Fikry, M. (1998). Passive solar ventilation. Renewable Energy, 14(1-4), 381-386.
  13. Hien, W. N., & Istiadji, A. D. (2003). Effects of external shading devices on daylighting and natural ventilation. Paper presented at the Proceedings of the 8th International IBPSA Conference, Eindhoven, The Netherlands.
  14. Hrehovcsik, M., & van Roessel, L. (2013). Using Vitruvius as a framework for applied game design Games for Health (pp. 131-152): Springer.
  15. Ikechukwu, O., Lin, L. Z., Idowu, O. M., & Okonkwo, M. (2019). Towards Enhancing the Effectiveness of Classroom Designs for Natural Ventilation Comfort in Yola, Nigeria. Open Journal of Energy Efficiency, 8(03), 129.
  16. Koenigsberger, I., & Ingersoll, T. (1974). Mayhew. Szokolay Manual of Tropical Housing and Building Longman, London.
  17. Larsen, T. S., & Heiselberg, P. (2008). Single-sided natural ventilation driven by wind pressure and temperature difference.Energy and Buildings, 40(6), 1031-1040.
  18. Leng, P. C., Ahmad, M. H., Ossen, D. R., & Hamid, M. (2015). Effective solar chimney cross section ventilation performance in Malaysia terraced house. Procedia-Social and Behavioral Sciences, 179, 276-289.
  19. Negreiros, B., Pedrini, A., & Edwards, R. (2016). Prediction methods of thermal comfort for naturally ventilated houses in hot humid climate. Proceedings of 9th Windsor Conference: Making Comfort Relevant, 11.
  20. Ogunsote, O. (1993). An Introduction to Building Climatology-A Basic Course for Architecture Students. Ahmadu Bello University, Zaria.
  21. Ogunsote, O., & Prucnal-Ogunsote, B. (2002). Defining climatic zones for architectural design in Nigeria: a systematic delineation. Journal of Environmental Technology, 1(2), 1-14.
  22. Ohba, M., & Lun, I. (2010). Overview of natural cross-ventilation studies and the latest simulation design tools used in building ventilation-related research. Advances in Building Energy Research, 4(1), 127-166.
  23. Oyedum, G. U., & Nwalo, K. I. N. (2011). Perceptions by undergraduate students of the environmental conditions and resources availability in selected university libraries in Nigeria. African Journal of Library, Archives and Information Science, 21(1), 73-84.
  24. Rajapaksha, I., Nagai, H., & Okumiya, M. (2003). A ventilated courtyard as a passive cooling strategy in the warm humid tropics. Renewable Energy, 28(11), 1755-1778.
  25. Sealey, A. (1979). Introduction to building climatology: Commonwealth Association of Architects.
  26. Seppänen, O., & Fisk, WJ. (2002). Abstract. Indoor Air, 12(2), 98-112.

Publication Details

Published in : Volume 7 | Issue 1 | January-February 2020
Date of Publication : 2020-01-30
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 60-72
Manuscript Number : IJSRSET207111
Publisher : Technoscience Academy

Print ISSN : 2395-1990, Online ISSN : 2394-4099

Cite This Article :

Moses Iorakaa Ayoosu, Yaik Wah Lim, Pau Chung Leng, Thomas Terna Aule, Kole Emmanuel Gabriel, " Assessment of Passive Architectural Strategies for Natural Ventilation in Libraries within Hot- Humid Climate , International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 7, Issue 1, pp.60-72, January-February-2020. Available at doi : https://doi.org/10.32628/IJSRSET207111      Citation Detection and Elimination     |     
Journal URL : https://ijsrset.com/IJSRSET207111

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