A Perspective of the Diurnal Aspect of Thermal Comfort in Nigeria

Eludoyin, Oyenike Mary

doi:10.4236/acs.2014.44063

Cited by 10 publications

(6 citation statements)

References 36 publications

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“…These are indications that the thermal performance in these two types of buildings differs, and the reason may be because of the differences in their architectural compositions. This agrees with Nicol and Roaf 43 who posit that in free running buildings, the relationship between indoor and outdoor temperature is largely decided by the form and materials of the building.…”

Section: Discussionsupporting

confidence: 90%

Evaluating the perception of thermal environment in naturally ventilated schools in a warm and humid climate in Nigeria

Munonye

2020

Building Services Engineering Research and Technology

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Field study was conducted in naturally ventilated primary school buildings in a warm and humid environment in Imo State, Nigeria to determine the thermal comfort perception of young children (aged 7–12 years) and to understand the thermal conditions in the classrooms. The comfort temperature was investigated in two types of classroom buildings during the rainy and dry seasons from October 2017 to May 2018. Approximately 7050 completed valid questionnaires were collected from 330 young children repeatedly surveyed twice a day. The children answered comfort questions at the same time the indoor and outdoor thermal variables were being measured. Results indicated that the combined ‘open-space’ classrooms produced a neutral temperature of 28.8°C with comfort range, 25.2–32.3°C. The neutral temperature of the combined ‘enclosed-plan’ classrooms is 28.1°C with 25.8–30.5°C as the comfort range. The differences in the comfort perceptions may be attributed to the differences in the architectural characteristics of both categories of classroom buildings. High temperature tolerance was shown by the participating children in the study area. This article, therefore, suggests that installing air conditioning in primary schools in the warm humid environment in Nigeria may not be necessary as it could lead to unnecessary energy consumption and carbon emission. Practical application: This work is part of the main research work that pioneers research on thermal comfort in public primary school classrooms in Nigeria. The findings from this study on the acceptable indoor temperatures in naturally ventilated classrooms in the warm and humid climate in Nigeria are important information for building services engineers and architects. The young children in these classrooms can accept high indoor temperatures. The intention of this information is to discourage high energy usage in heating, ventilation and air-conditioning (HVAC) system in primary school buildings in the study area, while maintaining the acceptable thermal comfort levels.

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Section: Discussionsupporting

confidence: 90%

Evaluating the perception of thermal environment in naturally ventilated schools in a warm and humid climate in Nigeria

Munonye

2020

Building Services Engineering Research and Technology

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“…It is also evident from the frequency plot that at 1500 LST, the thermal comfort condition deteriorated compared to the condition at 0600. Studies have shown that the thermal conditions at 1500 LST are particularly influenced by the meteorological variables such as air temperature and the thermal comfort deteriorates significantly at this time [29,31,45]. Figure 8 shows the mean seasonal thermal perception categories for the stations across the savanna regions.…”

Section: Frequency Of Thermal Stress Classificationmentioning

confidence: 99%

“…Temperature-humidity index (THI) and wind chill index (WCI) were employed for the investigation over the five urban towns in north central region. Eludoyin [31] assessed the changes in the daytime physiological comfort of Nigeria using the effective temperature index (ETI), temperature-humidity index (THI) and relative strain index (RSI). Of the previous human bioclimatic studies over Nigeria, THI is the most commonly used index.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the bioclimatic conditions over some selected stations in Nigeria

2019

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This study seeks to assess the bioclimatic conditions of some selected stations in Nigeria from 1981 to 2010 using meteorological data input from the Nigerian Meteorological Agency (NIMET). The specific objectives were to analyze the spatiotemporal variability of the key weather parameters critical to bioclimatic conditions, evaluate the monthly and seasonal variation of the bioclimatic conditions and analyze the spatiotemporal variation of the human bioclimatic conditions over the area. The study applied the use of two bioclimatic indices, namely physiological equivalent temperature (PET) and Universal Thermal Climate Index (UTCI). PET was computed using the RayMan model, while UTCI was computed using the Bioklima model. The bioclimatic conditions were observed to vary seasonally as thermal stress levels particularly increased in the months of March to May and these months correspond to the pre-wet period of the year. The conditions, however, improved during the wet and dry periods. The early hours of the day (0600 Local Standard Time) were characterized mostly by no thermal stress conditions; however, the northern regions were cooler than the other parts of the country. The frequency of thermal stress categories for each station also revealed the threshold of the thermal stress condition over each station. The result from this study provides useful bioclimatic information applicable in the development of adaptive strategies and efficient planning with respect to the thermal environment.

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“…This storm is usually as a result of harmattan dust, which is a transitory dust originating from the Chad Basin driven by the northeasterly trade wind from the neighboring Sahara Desert moving across Nigeria between November and March annually. Eludoyin (2014) described harmattan season as dusty, windy and linked with dry eyes, dry skin and dry throat. Some of the common risks associated with the harmattan season include frequent fire outbreaks because of heavy wind, poor visibility caused by dust particles concentration in air, discomfort owing to frequent home cleaning requirement and numerous health hazards.…”

Section: Introductionmentioning

confidence: 99%

Psychosocial perception of the effects of harmattan dust on the environment and health of building occupants in Maiduguri, Nigeria

Mohammed

Bulama

Usman

et al. 2020

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Purpose The purpose of this paper is to investigate the psychosocial perception of harmattan dust on building openings, health and housekeeping to determine the influence of the dust on building occupants. Design/methodology/approach Population-representative survey data were collected from Maiduguri, Northeastern Nigeria, through physical administration of questionnaires by assessing several variables. Statistical package SPSS 16.0 was used for the data analysis, which is mainly descriptive analysis in frequencies, percentages and means together with a repeated Pearson’s chi-square analysis to identify the relationship between the factors and the significance testing. Findings The results show that majority (94.3%) experienced dust problem in harmattan season, and a larger part (76.6%) confirmed that the dust penetrates through doors and windows. Higher percentage (91.2%) noticed that the dust particles on their floor/furniture surfaces, and on an average, people clean their houses three times daily in harmattan season. Majority (80.5%) of the respondents smell dust in the harmattan season, and greater part (77.9%) experienced health challenges in this season, of which 12.8% confirmed harmattan dust aggravates their asthma, 13.6% confirmed it causes headache, 3.1% confirmed it exacerbated pneumonia, 58.5% confirmed it causes coughing, 3.5% confirmed catarrh, 2.3% confirmed nasal/respiratory congestion, sneezing and bronchitis and 6.2% experienced eye problems. Moreover, the results indicate that number/types of openings in a building are significantly associated with factors including smelling dust in the harmattan season and health problem experienced because of dust indoors. The number of times people clean their homes/workplaces is significantly related to important variables such as experiencing dust problem in harmattan season and number/type of openings in a building. The results further established that the health problem experienced by people is significantly related to important variables including dust problem experienced in the harmattan season and type of openings in a room. Originality/value Harmattan dust is a serious challenge to health and well-being of building occupants in the study area. The built environment professionals need to optimize building openings for effective dust control indoors.

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A Perspective of the Diurnal Aspect of Thermal Comfort in Nigeria

Cited by 10 publications

References 36 publications

Evaluating the perception of thermal environment in naturally ventilated schools in a warm and humid climate in Nigeria

Evaluating the perception of thermal environment in naturally ventilated schools in a warm and humid climate in Nigeria

Assessment of the bioclimatic conditions over some selected stations in Nigeria

Psychosocial perception of the effects of harmattan dust on the environment and health of building occupants in Maiduguri, Nigeria

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