IIT Jodhpur
Seminar on "Designing For The Sun: Case Studies In Sustainable Habitat Design" - 02 November 2017

Date and Venue Information:
02 November 2017, Room 106, 4:15 PM, Lecture Hall Complex

Title of Seminar:
" Designing For The Sun: Case Studies In Sustainable Habitat Design " by Jay Dhariwal

The hallmark of thriving, dynamic cities are the quality of outdoor public spaces in them. Comfortable urban microclimate can lead more people to sit, walk and bike outside. A study was carried out in a public courtyard at MIT for ten months, using the biometeorological index Universal Thermal Climate Index (UTCI), to predict the likelihood of urban dwellers to be outside during midday. Wi-Fi data from smart phones used as a proxy for occupant behavior resulted in 400 times more longitudinal subjects than any study in the past. UTCI predictions based on urban microclimate modelling strongly correlated with the number of regulars present during lunchtime with coefficients of determination (R2) of 92% during spring and 70% during summer/fall, respectively. Lunchtime attendance peaked for UTCI values in the thermal comfort and moderate heat stress ranges. These findings suggest that UTCI can be used as a reliable environmental performance metric to support the design and preservation of comfortable outdoor spaces. Moving from life between buildings to life inside buildings, there is a pressing need to design and build homes that are comfortable, energy-efficient and cost-effective. Brief summary is provided about the effort of the first student team from India to participate in Solar Decathlon, a competition to build prefabricated, solar powered, energy efficient houses in two weeks’ time. This project also led to the research question of finding faster optimization algorithms for building design for the twin objectives of energy and cost. The results are compared between the proposed approach using design of experiments and genetic algorithms based optimization.
Brief Profile:
Jay holds a B.Tech. in Mechanical Engineering from IIT Guwahati and Masters in Industrial Engineering from Purdue University, USA. He then worked for 4 years with Aviation US Coastguard as an Operations Research Analyst. He moved to India after that and pursued his PhD from IIT Bombay. The topic of his PhD thesis was “Building energy simulation based design optimization.” During his PhD years, he was the Project Engineer of the first student team from India to be selected for Solar Decathlon. Presently, he is finishing his postdoctoral work from Building Technology Program in the Department of Architecture at Massachusetts Institute of Technology, USA. Apart from research work, he loves adventure nature activities and dabbles in mechatronics whenever he gets a chance.