2,072 research outputs found
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Evaluating building material based thermal comfort of a typical low-cost modular house in India
‘Housing for All by 2022’ is an ambitious initiative by the Government of India, to provide affordable and quality housing to the people of economically weaker sections (EWS) and the low-income group (LIG). Modular housing has become the de-facto in this context of low-cost and affordable housing. In this study, we evaluate the thermal comfort of a commercially available modular house with respect to different low-cost building wall materials and window glass panes. Dynamic energy simulations were carried out for Mumbai to analyse the thermal-comfort performance of such houses throughout the year. Results have shown that none of the low-cost building materials was competent enough to meet the ASHRAE-55 standards. However, a combination of glass fibre reinforced gypsum board and a blue-tinted glass of a 6mm thickness, performed better in thermal comfort in comparison to other materials. This study showed the need for the development of efficient low-cost building materials in order to address the long-term sustainability of the low-cost housing project
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Daylight Performance of a Naturally Ventilated Building as Parameter for Energy Management
© 2016 The Authors. Daylight is an important element of energy efficient buildings. Energy savings from artificial lighting during the daytime can have significant impact on the energy sustainability residential buildings. For a city like Mumbai, where the buildings have limited access to daylight due to the sprawling of densely packed high rise buildings, energy saving from daylighting can be an effective driver of sustainability. Under this purview, it is prudent to evaluate the effects of various building design elements like orientation and window-to-wall ratio (WWR) on energy saving potential through daylighting. In this study, two parameters of daylight incidences: Useful Daylight Illuminance (UDI) and annual light exposure, were studied to understand the daylight performance of a high rise residential building. UDI values were then reiterated by varying the orientation and WWR. The results showed that the building performed best at the South-East orientation with a WWR of 50% which allowed 63% more ambient illuminance in the functional space. This study also unveils the paradigm that ambient illuminance inside the functional space of the building may be independent of total incident annual light exposure in the rooms. That means more annual exposure does not necessarily means better lighting conditions within the indoor functional space. Hence, this study creates a way forward in designing energy efficient buildings using UDI as a daylight performance metric.Ministry of Human Resource Development, Government of India under the Grant number- 14MHRD005
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Resource Symbiosis Model through bricolage: A livelihood generation assessment of an Indian village
In this study, a conceptual model of resource symbiosis (RSM) of an Indian village was developed, by leveraging the concept of bricolage, to aid in sustainable livelihood generation. This novel RSM expands as a co-management model for a rural community in resource-constrained environments to manage its resources efficiently in collaboration with local governments. Avenues for sustainable livelihood generation was assessed through household surveys and resource mapping of the village. A mixed-mode research method was adopted through participatory rural appraisal activities for involving local people and their practices in the design philosophy of RSM. Problem identification and ranking through personal and collective interviews of the villagers formed a core basis for the livelihood assessment. It enabled the internalisation of normative and idiosyncratic linkages for resource symbiosis. These linkages were interconnected through community participation, which set the boundary conditions for RSM. Results show that RSM for the study village could foster inclusive growth in two ways: first, by creating scope for efficient resource utilisation through the establishment of an oil mill, a biogas plant and a milk processing unit; and, second, by creating an entrepreneurial ecosystem based on village's self-sufficiency and market demand by empowering local entrepreneurs. Additionally, RSM could leverage local governing bodies to connect with private investors and policymakers to enable fast-track implementation of the livelihood generation schemes of the government
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Poster abstract: A data-driven design framework for urban slum housing - Case of Mumbai
The current building assessment tools are limited to building performance analysis with respect to box models derived from the urban morphology of developed countries. Complex socio-technical issues associated with rapidly urbanizing cities like Mumbai are often missed. Here, we forward a conceptual framework for designing slum habitation adheres to norms of energy, health and environmental sustainability. This can enable in designing slum rehabilitation projects such that they are not only energy efficient, but are also acceptable to the occupants. This conceptual framework attempts to bridge the missing link currently existing in the early design stages of slum rehabilitation projects. The proof of the concept is a work currently in progress, hence, here, we only elaborate on the conceptual framework exemplified through three cases of slum rehabilitation houses in Mumbai
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A data-driven and simulation approach for understanding thermal performance of slum redevelopment in mumbai, india
Distinguishing Motor Weakness From Impaired Spatial Awareness: A Helping Hand!
Our patient, aged 73 years, had background peripheral neuropathy of unknown cause, stable for several years, which caused some difficulty in walking on uneven ground. He attended for a teaching session but now staggered in, a new development. He had apparent weakness of his right arm, but there was difficulty in distinguishing motor weakness from impaired spatial awareness suggestive of parietal lobe dysfunction. With the patient seated, eyes closed, and left arm outstretched, S.A.R. lifted the patient’s right arm and asked him to indicate when both were level. This confirmed motor weakness. Urgent computed tomographic scan confirmed left subdural haematoma and its urgent evacuation rapidly resolved the patient’s symptoms. Intrigued by our patient’s case, we explored further and learnt that in rehabilitation medicine, the awareness of limb position is commonly viewed in terms of joint position sense. We present recent literature evidence indicating that the underlying mechanisms are more subtle
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Analysing outdoor airflow and pollution as a parameter to assess the compatibility of mass-scale low-cost residential development
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