Thermal Comfort and Occupant Behaviour in a Naturally Ventilated Hostel in Warm-Humid Climate of Ile-Ife, Nigeria: Field Study Report during Hot Season

Olanipekun Emmanuel Abiodun; Olanipekun Emmanuel Abiodun

Authors

Olanipekun Emmanuel Abiodun
Olanipekun Emmanuel Abiodun

Keywords:

thermal comfort, occupant behaviour, naturally ventilated hostel, dry season, ile-ife, nigeria

Abstract

Naturally ventilated buildings have been observed to be ineffective in warm-humid tropical especially during hot season. To ascertaining this observation, this study presents the results of a shortterm thermal comfort survey performed in a naturally ventilated hostel building in Obafemi Awolowo University, Ile-Ife, Nigeria during hot season. Using the data obtained from questionnaire survey and physical measurement of (air temperature, relative humidity and air velocity) using Kestrel model 4500, thermal environmental conditions, occupant comfort and adaptation methods were investigated considering class II protocol. Ninety six respondents participated in the study. Statistical analysis of students` responses and measured thermal environmental variables was performed to determine existing indoor environmental conditions and priority of using adaptive controls. All the measured environmental variables fell below the comfort range recommended by ASHRAE standard 55 and ISO 7730 standard. On the contrary, respondents were comfortable, preferring cooler, no change environments and more air movement. First preference of the respondents adaptive control was window opening (77.4%), closely followed by wearing light clothes (77.3%) and lastly, the use of electric fans. This study concludes that in warm-humid climate of Ile-Ife, during the hot season the desire for sustainable thermal comfort may not be achieved without mechanical ventilation system.

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Thermal Comfort and Occupant Behaviour in a Naturally Ventilated Hostel in Warm-Humid Climate of Ile-Ife, Nigeria: Field Study Report during Hot Season. (2014). Global Journal of Human-Social Science, 14(B4), 1-18. https://socialscienceresearch.org/index.php/GJHSS/article/view/1030

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References

S Sekhar, S Goh (2011) Thermal comfort and IAQ characteristics of naturally/mechanically ventilated and air-conditioned bedrooms in a hot and humid climate. 46, 1905-1916.

L Zhang, Q Yuan, Q Wu, S Kwauk, X Liao, C Wang (2009) Sleep quality and sleep disturbing factors of inpatients in a Chinese General Hospital. 18, 2521-2529.

Z Lin, S Deng (2006) A questionnaire Survey on Sleeping Thermal Environment and Bedroom Air Conditioning in High-rise Residences in Hong Kong. 38, 1302-1307.

Despoina Teli, Mark Jentsch, Patrick James (2012) Naturally ventilated classrooms: An assessment of existing comfort models for predicting the thermal sensation and preference of primary school children. 53, 166-182.

A Ismail, N Jusoh, N Makhtar, M Daraham, M Parimun, M Husin (2010) Assessment of Environmental Factors and Thermal Comfort at Automotive Paint Shop. 10(13), 1300-1306.

H Chen, B Moshfegh, M Cehlin (2013) Investigation on the Flow and Thermal Behavior of Impinging Jet Ventilation Systems in an Office with Different Heat Loads. 59, 127-144.

A Pourshaghaghy, Omidvari (2012) Examination of thermal comfort in a hospital using PMV-PPD model. 43-1089.

L Schellen, W Van Marken Lichtenbelt, M Loomans, J Toftum, M De Wit (2010) Differences between young adults and elderly in thermal comfort, productivity, and thermal physiology in response to a moderate temperature drift and a steady-state condition. 20(4), 273-283.

Shivraj Dhaka, Jyotirmay Mathur, Andreas Wagner, Ghanshyam Agarwal, Vishal Garg (2013) Evaluation of thermal environmental conditions and thermal perception at naturally ventilated hostels of undergraduate students in composite climate. 66, 42-53.

N Dahlan, P Jone, D Alexander (2011) Operative temperature and thermal sensation assessments in non-air-conditioned multi-storey hostels in Malaysia. 46, 457-467.

Z Bako-Biro, D Clements-Croome, N Kochhar, H Awbi, M Williams (2012) Ventilation rates in schools and pupils` performance. 48, 215-223.

P Fanger (1972) Thermal comfort, analysis and applications in environmental engineering.

A Ayanwale, A Orkaa, A Adelekun, D Natcher, I Ogunwande, D Oyedele, C Adebooye (2012) Factors influencing adoption of postharvest practices among underutilised indigenous vegetables producers in Southwest Nigeria. 88(2), 1-8.

O Adunola, K Ajibola (2012) Thermal considerations and space use within residential buildings in Ibadan.

O Adunola (2011) Evaluation of urban residential thermal comfort in relation to indoor and outdoor air temperatures in Ibadan, Nigeria. 75, 190-205.

M Adebamowo, O Akande (2010) Indoor Thermal Comfort for Residential Buildings in Hot-Dry Climate of Nigeria.

M Adebamowo, O Olusanya (2012) Energy savings in housing through enlightened occupants behaviour and by breaking barriers to comfort: a case study of a hostel design in Nigeria.

Manoj Singh, Sadhan Mahapatra, S Atreya (2010) Thermal performance study and evaluation of comfort temperatures in vernacular buildings of North-East India. 45(2), 320-329.

H Djamila, C Chu, S Kumaresan (2013) Field study of thermal comfort in residential buildings in the equatorial hot-humid climate of Malaysia. 62, 133-142.

Henry Feriadi, Nyuk Wong (2004) Thermal comfort for naturally ventilated houses in Indonesia. 36(7), 614-626.

J Appah-Dankyi, C Koranteng (2012) An assessment of thermal comfort in a warm and humid school building at Accra, Ghana. 3(1), 535-547.

P Taylor, R Fuller, M Luther (2008) Energy use and thermal comfort in a rammed earth office building. 40, 793-800.

Madhavi Indraganti, Ryozo Ooka, Hom Rijal (2013) Field investigation of comfort temperature in Indian office buildings: A case of Chennai and Hyderabad. 65, 195-214.

Ashrae (2004) AMERICAN SOCIETY OF HEATING, REFRIGERATION AND AIR-CONDITIONING ENGINEERS, ASHRAE, INC.

(2005) Moderate thermal environments. Determination of the PMV and PPD indices and specification of the conditions for thermal comfort.

A Wagner, E Gossauer, C Moosmann, T Gropp, R Leonhart (2007) Thermal comfort and workplace occupant satisfaction-Results of field studies in German low energy office buildings. 39(7), 758-769.

T Karyono (2000) Report on thermal comfort and building energy studies in Jakarta, Indonesia. 35, 77-90.

Madhavi Indraganti, Ryozo Ooka, Hom Rijal (2013) Thermal comfort in offices in summer: Findings from a field study under the 'setsuden' conditions in Tokyo, Japan. 61, 114-132.

S Wafi, M Ismail, E Ahmed (2011) A Case Study of the Climate Factor on Thermal Comfort for Hostel Occupants in Universiti Sains Malaysia (USM), Penang. 4(5), 50-61.

Hanani Abd Wahab, Muhamad Abdul Manap, Al Ismail, Ong Pauline, Maznan Ismon, Muhd Zainulabidin, Fazimah Mat Noor, Zaleha Mohamad (2011) Investigation of Temperature and Humidity Control System for Mushroom House. 11(6).

Yufeng Zhang, Jinyong Wang, Huimei Chen, Jun Zhang, Qinglin Meng (2010) Thermal comfort in naturally ventilated buildings in hot-humid area of China. 45(11), 2562-2570.

M Haase, A Amato (2009) An investigation of the potential for natural ventilation and building orientation to achieve thermal comfort in warm and humid climates. 83, 389-399.

L Wang, N Wong (2007) The impacts of ventilation strategies and facade on indoor thermal environment for naturally ventilated residential buildings in Singapore. 42, 4006-4018.

Y Zhang, R Zhao (2009) Relationship between thermal sensation and comfort in non-uniform and dynamic environments. 44(7), 1386-1391.

Yufeng Zhang, Rongyi Zhao (2008) Overall thermal sensation, acceptability and comfort. 43(1), 44-50.

J Nicol, M Humphreys (2004) Adaptive thermal comfort standards in the hot-humid tropics. 36(7), 628-637.

Bassam Moujalled, Richard Cantin, Gérard Guarracino (2008) Comparison of thermal comfort algorithms in naturally ventilated office buildings. 40(12), 2215-2223.

A Kwok, C Chun (2003) Thermal Comfort in Japanese Schools. 74(3), 245-252.

D Mcintyre, Indoor Climate (1980) Unknown Title.

G Brager, G Paliaga, R De Dear (2004) Operable windows, personal control. 110(2), 17-35.

C Cândido, R De Dear, R Lamberts, L Bittencourt (2010) Air movement acceptability limits and thermal comfort in Brazil's hot humid climate zone. 45(1), 222-229.

Valeria De Giuli, Roberto Zecchin, Luigi Salmaso, Livio Corain, Michele De Carli (2013) Measured and perceived indoor environmental quality: Padua Hospital case study. 59, 211-226.

Ke Zhong, H Fu, Y Kang, X Peng (2012) Indoor thermal conditions and the potential of energy conservation of naturally ventilated rooms in summer, China. 45.

R Hwang, Ming-Jen Cheng, M Lin, T Ho, M (2009) Thermal perceptions, general adaptation methods and occupant's idea about the trade-off between thermal comfort and energy saving in hothumid regions. 44, 1128-1134.

Madhavi Indraganti (2010) Thermal comfort in naturally ventilated apartments in summer: Findings from a field study in Hyderabad, India. 87(3), 866-883.

Nyuk Wong, Shan Khoo (2003) Thermal comfort in classrooms in the tropics. 35(4), 337-351.

J Nicol, M Humphreys (2004) A stochastic approach to thermal comfort-occupant-behaviour and energy use in buildings. 110(2), 5554-5572.