Influence of building attributes on thermal comfort in naturally ventilated hospital wards in the hot-humid tropics of southeast Nigeria

IF 2.1 Q2 CONSTRUCTION & BUILDING TECHNOLOGY
Francis O. Uzuegbunam, Fynecountry N. Aja, Eziyi O. Ibem
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Abstract

Purpose This research aims to investigate the influence of building design on the thermal comfort of occupants of naturally ventilated hospital (NVH) wards to identify the aspects with the most significant influence on the thermal comfort of hospital buildings during the hot-dry season in the hot-humid tropics of Southeast Nigeria. Design/methodology/approach Field measurements, physical observations and a questionnaire survey of 60 occupants of the wards of the Joint Presbyterian Hospital, Uburu in Ebonyi State, Nigeria were undertaken. The data were analysed using Humphreys' neutral temperature formula, descriptive statistics and multiple regression analysis. Findings The results revealed that the neutral temperature for the wards ranges from 26.2 °C to 29.9 °C, the thermal condition in the wards was not comfortable because it failed to meet the ASHRAE Standard 55 as only 65% of the occupants said the thermal condition was acceptable. The number and sizes of windows, building orientation, the presence of high-level windows and higher headroom significantly influenced the occupants' thermal comfort vote. Practical implications This research is valuable in estimating comfort temperature and identifying aspects that require attention in enhancing the capacity of NVH wards to effectively meet the thermal comfort needs of occupants in the hot-humid tropics of Southeast Nigeria and other regions that share similar climatic conditions. Originality/value To the best of the authors’ knowledge, this is the first study of this nature that provides valuable feedback for building design professionals on the performance of existing hospital buildings in meeting users' thermal comfort needs in the hot-dry season of the hot-humid tropics in Southeast Nigeria.
尼日利亚东南部湿热热带地区自然通风医院病房建筑属性对热舒适的影响
本研究旨在探讨建筑设计对自然通风医院(NVH)病房居住者热舒适的影响,找出在尼日利亚东南部湿热热带地区的干热季节对医院建筑热舒适影响最显著的方面。设计/方法/方法对尼日利亚埃邦伊州乌布鲁联合长老会医院病房的60名住院者进行了实地测量、身体观察和问卷调查。采用汉弗莱斯中性温度公式、描述性统计和多元回归分析对数据进行分析。结果表明:病房中性温度范围为26.2 ~ 29.9°C,仅65%的住客认为病房热条件可接受,不符合ASHRAE标准55。窗户的数量和大小、建筑朝向、高层窗户的存在和较高的净空显著影响居住者的热舒适投票。本研究对于估计舒适温度和确定需要注意的方面有价值,以提高NVH病房的能力,有效满足尼日利亚东南部湿热热带地区和其他具有类似气候条件的地区居住者的热舒适需求。原创性/价值据作者所知,这是第一次对这种性质的研究,为建筑设计专业人员提供了有价值的反馈,以满足尼日利亚东南部湿热热带地区炎热干燥季节用户的热舒适需求。
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来源期刊
CiteScore
4.80
自引率
18.20%
发文量
76
期刊介绍: The International Journal of Building Pathology and Adaptation publishes findings on contemporary and original research towards sustaining, maintaining and managing existing buildings. The journal provides an interdisciplinary approach to the study of buildings, their performance and adaptation in order to develop appropriate technical and management solutions. This requires an holistic understanding of the complex interactions between the materials, components, occupants, design and environment, demanding the application and development of methodologies for diagnosis, prognosis and treatment in this multidisciplinary area. With rapid technological developments, a changing climate and more extreme weather, coupled with developing societal demands, the challenges to the professions responsible are complex and varied; solutions need to be rigorously researched and tested to navigate the dynamic context in which today''s buildings are to be sustained. Within this context, the scope and coverage of the journal incorporates the following indicative topics: • Behavioural and human responses • Building defects and prognosis • Building adaptation and retrofit • Building conservation and restoration • Building Information Modelling (BIM) • Building and planning regulations and legislation • Building technology • Conflict avoidance, management and disputes resolution • Digital information and communication technologies • Education and training • Environmental performance • Energy management • Health, safety and welfare issues • Healthy enclosures • Innovations and innovative technologies • Law and practice of dilapidation • Maintenance and refurbishment • Materials testing • Policy formulation and development • Project management • Resilience • Structural considerations • Surveying methodologies and techniques • Sustainability and climate change • Valuation and financial investment
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