Comparative study of thermal comfort and adaptive actions for modern and traditional multi-storey naturally ventilated hostel buildings during monsoon season in India

Kumar, Sanjay; Singh, Manoj Kumar; Kukreja, Rajeev; Chaurasiya, Shailendra Kumar; Gupta, Varun Kumar

doi:10.1016/j.jobe.2019.01.020

Cited by 44 publications

(18 citation statements)

References 32 publications

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“…1). It has very diverse climatic conditions with four different climatic seasons, where July-September months are considered as monsoon period and October-December is post-monsoon period [20]. In this period, over 80% of total annual rainfall is received by the country [20].…”

Section: Introductionmentioning

confidence: 99%

“…It has very diverse climatic conditions with four different climatic seasons, where July-September months are considered as monsoon period and October-December is post-monsoon period [20]. In this period, over 80% of total annual rainfall is received by the country [20]. In contrast, during the post-monsoon months (October to December), a different monsoon cycle, the northeast (or "retreating") monsoon, brings dry, cool, and dense air masses to large parts of India [20].…”

Section: Introductionmentioning

confidence: 99%

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El Niño Southern Oscillation as an early warning tool for dengue outbreak in India

et al. 2020

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Background Dengue is rapidly expanding climate-sensitive mosquito-borne disease worldwide. Outbreaks of dengue occur in various parts of India as well but there is no tool to provide early warning. The current study was, therefore, undertaken to find out the link between El Niño, precipitation, and dengue cases, which could help in early preparedness for control of dengue. Methods Data on Oceanic Niño Index (ONI) was extracted from CPC-IRI (USA) while the data on monthly rainfall was procured from India Meteorological Department. Data on annual dengue cases was taken from the website of National Vector Borne Disease Control Programme (NVBDCP). Correlation analysis was used to analyse the relationship between seasonal positive ONI, rainfall index and dengue case index based on past 20 years’ state-level data. The dengue case index representing ‘relative deviation from mean’ was correlated to the 3 months average ONI. The computed r values of dengue case index and positive ONI were further interpreted using generated spatial correlation map. The short-term prediction of dengue probability map has been prepared based on phase-wise (El Niño, La Niña, and Neutral) 20 years averaged ONI. Results A high correlation between positive ONI and dengue incidence was found, particularly in the states of Arunachal Pradesh, Chhattisgarh, Haryana, Uttarakhand, Andaman and Nicobar Islands, Delhi, Daman and Diu. The states like Assam, Himachal Pradesh, Meghalaya, Manipur, Mizoram, Jammu & Kashmir, Uttar Pradesh, Orissa, and Andhra Pradesh shown negative correlation between summer El Niño and dengue incidence. Two - three month lag was found between monthly ‘rainfall index’ and dengue cases at local-scale analysis. Conclusion The generated map signifies the spatial correlation between positive ONI and dengue case index, indicating positive correlation in the central part, while negative correlation in some coastal, northern, and north-eastern part of India. The findings offer a tool for early preparedness for undertaking intervention measures against dengue by the national programme at state level. For further improvement of results, study at micro-scale district level for finding month-wise association with Indian Ocean Dipole and local weather variables is desired for better explanation of dengue outbreaks in the states with ‘no association’.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

El Niño Southern Oscillation as an early warning tool for dengue outbreak in India

et al. 2020

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“…Buildings are expected to create permanent healthy and comfortable indoor conditions, regardless of outdoor climate conditions. Apart from the high energetic performance of building envelopes, this issue places certain demands on heating and cooling energy to make a building thermally comfortable, and a building's energy consumption comprises 20-40% of total energy demand [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Traditional and Contemporary Building Envelope Construction Techniques in terms of Thermal Comfort and Energy Efficiency in Hot and Humid Climates

Lotfabadi

Hançer

2019

Sustainability

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Expectations of traditional and contemporary buildings are different in terms of thermal comfort. Traditional buildings mostly achieve comfort through passive means, without HVAC support, but old levels of thermal satisfaction do not meet today’s expectations, although their passive thermal performances are notable for contemporary building designs. In this regard, the current study tries to investigate the possibility of comparing traditional and contemporary buildings’ construction techniques to achieve thermal comfort from an architectural point of view. In other words, is it possible to achieve passive building design by considering vernacular architecture principals as a reference? Likewise, how well can architects define insulation layers in contemporary construction surfaces in hot and humid climates? To this end, a dynamic, numerical, thermal calculation case study has been modeled in Famagusta, Northern Cyprus, to answer the above-mentioned questions. A mixed-use mode benefitting free-run periods is proposed and compared with a mode providing 24 hours of air-conditioning in different scenarios using the same initial settings. Thus, different floor-to-ceiling heights, insulation placements and indoor conditions have been tested separately in both winter and summer periods. The results show that thermal comfort can be achieved in free-run periods only during a limited percentage of the year. Furthermore, although increasing building heights may lead to a rise in the free-run periods, in contemporary buildings it increases the total energy usage of the buildings between 6% and 9% in the mixed mode. Therefore, vernacular architecture strategies are proper in their own context. However, this energy usage can still be controlled and optimized by such considerations as insulation material placement. In this regard, the best envelope properties for different building functions are proposed for application in hot and humid climates.

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“…Similar trends were identified for the three surveyed buildings where the gradients were all positive. In the other words, the higher the indoor operative temperature, the warmer thermal sensation the building occupants would have [31,35,45]. The average neutral temperatures for all the three surveyed buildings were 20.5°C and 19.5°C, for the summer period and the winter period respectively.…”

Section: Discussionmentioning

confidence: 93%

Evaluation of thermal comfort in building transitional spaces - Field studies in Cardiff, UK

Tse

Jones

2019

Building and Environment

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Comparative study of thermal comfort and adaptive actions for modern and traditional multi-storey naturally ventilated hostel buildings during monsoon season in India

Cited by 44 publications

References 32 publications

El Niño Southern Oscillation as an early warning tool for dengue outbreak in India

El Niño Southern Oscillation as an early warning tool for dengue outbreak in India

A Comparative Study of Traditional and Contemporary Building Envelope Construction Techniques in terms of Thermal Comfort and Energy Efficiency in Hot and Humid Climates

Evaluation of thermal comfort in building transitional spaces - Field studies in Cardiff, UK

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