P. S. Chani

Bio: P. S. Chani is an academic researcher from Indian Institute of Technology Roorkee. The author has contributed to research in topics: Embodied energy & Energy conservation. The author has an hindex of 2, co-authored 10 publications receiving 34 citations. Previous affiliations of P. S. Chani include Indian Institutes of Technology.

Energy-efficient retrofit of an unconditioned institute building

Abstract: The purpose of this study is to demonstrate the energy-efficient retrofitting of an existing unconditioned academic department building in the campus of the Indian Institute of Technology, Roorkee, India. It is achieved with the use of energy simulation modelling to examine the energy-saving benefits of power-consuming equipments, power generation through renewable sources improving thermal comfort through Energy Conservation and Building Code India's compliance and motivating the buildings’ occupants for energy-responsive behaviours. These strategies, when applied together, lead to an overall reduction of 40.4% in the total energy consumption. It was observed that the energy units saved for an unconditioned building are significantly lower than that of a conditioned building, but the percentage changes are comparable for both the types. The heat gain results from simulation software also show that in such buildings external windows account for most of the heat gain within the building, whereas uninsulate...

Approaches to Parameterization in Architectural Design

Abstract: With computational capabilities parametric architecture has opened new domains of possibilities. The outcome of parametric approach can fit in any of the traditional classification in the architectural domain. But the approaches to parameterization in architecture vary widely, which can be broadly classified into form imitation, form optimization and form finding. These application areas are ‘tool and technique oriented’, ‘problem solving oriented’ and ‘explorative approach’ respectively. Any particular design case can have a combination of these approaches. In this paper these approaches are described, illustrated and parallels are drawn across these categories for comparison of these approaches. Further, based on this study, the design process is mapped in relation to parametric data flow in each of the approaches.

Design for Disassembly: A Step Towards Zero-Waste Buildings

Abstract: This paper discusses the concept of ‘Design for Disassembly’ which deals with structures that can be erected, modified and eventually even dismantled without leaving any debris on site Design for Disassembly (DfD) is one topic that is gaining attention around the world today due to its sustainable features

Energy performance analysis of a Hydro-turbine test lab: An architectural approach

Abstract: Building energy simulation tests for a proposed office cum Hydro-turbine test lab at IIT Roorkee, India were performed for different window-wall ratios (WWR) in order to find the most energy efficient solution. Results from energy simulation shows that such building with a WWR of 90% will end-up using 2,16,347 kWh per annum. If clear glass is replaced with low transmitting reflective glass and daylight sensors are added to this configuration, annual lighting and air-conditioning energy consumption will reduce by 34.22% and 14.57% respectively. The building was simulated for total nine combinations of WWR and maximum energy savings were established in a combination having 40% WWR in south, east, west facade and 100% WWR in north facade. However, from the point of view of exteriors of the building, a 60% WWR will provide better outside views to its occupants as compared to the building with 40% WWR. It was also observed that providing daylight sensors and reflecting glass do not cost more when integrated with optimum WWR as the additional cost is compensated by savings achieved from energy costs.