This symposium proposal aims to bring together Indian and German experts on identification of issues pertaining to Sustainable Urban Built-Environment (i.e., "SustainUBE", hereafter). A three-day symposium will be organized at IIT Delhi (India) to provide a platform for discussion between Indian and German experts on sustainability. Within this proposed partnership, we aim to address following eight themes: (1) Water, (2) Air, (3) Solid-waste, (4) Climate change issues, (5) Building-climate interaction, (6) Energy, (7) Environmental systems analysis, and (8) Human health risk assessment. Expected outcomes of this symposium are: (1) Identification of issues pertinent to sustainability of Indian built environment through discussion and knowledge exchange as a documented symposium proceeding and (2) Development of research groups for collaborating on different identified issues, thereby, making the symposium effort sustainable beyond the Germany Year in India and benefiting both countries.
Origin of the proposal
The Symposium of Indo-German Experts (SustainUBE) is taking place in the framework of the year of Germany in India and aims to increase interaction between Indian and German experts to address sustainability issues of the Indian urban environment. “Germany and India 2011-2012: Infinite Opportunities” is a series of events celebrating 60 years of Indo-German diplomatic relations. With a thematic focus on “StadtRäume – CitySpaces”, this programme series across India broaches the implications of rapid urbanisation and challenges posed by the pace of change in German and Indian cities today. The project is being initiated by the German Federal Foreign Office, the Asia-Pacific Committee of German Business (APA), the German Federal Ministry of Education and Research and the Goethe-Institut/ Max Mueller Bhavan.
Definition of the problem
Due to increasing Indian urban population and increased stress on available resources for meeting human requirements, it becomes important to address the issue of sustainability of Indian urban built-environment (i.e., "UBE", hereafter). Current UBE demands supply of safe drinking water, clean air, safe sanitation, energy-efficient buildings, less impact on environment due to urban buildings and vice-versa and require a structured framework approach for assimilating different components in a systematic approach. For example, adaptation aspects of climate change for tall building deals with building-climate interaction (Kasperski, 2007 & 2009). This issue arises due to the fact that tall buildings typically have design life ranging from 75 to 100 years, the period lie in the climate change scenarios. Hence, the tall buildings designed currently with some desired factor of safety against wind loads would not satisfy the same criteria few decades later. In Indian context, currently, the Indian code IS 875 (1987) mandates carrying out static analysis for wind considering factors such as, risk/ probability, terrain, height, structure size, topography for structures with aspect ratio >5 and fundamental frequency <1 Hz. The design wind speed is calculated with these factors and square proportion of basic wind speed. It requires ensuring adequate safety and serviceability against the loads such calculated. If the basic wind speed is changed, it would have substantial impact on the structural design. With growing urbanization in India and widespread construction of tall buildings, especially in mega-cities situated in coastal areas such as Mumbai (44 m/s), Chennai (50 m/s), Calcutta (50 m/s) and important cities such as Delhi (47 m/s) etc. the urgent need is re-looking the specifications given for wind analysis in IS 875 (1987). The values in bracket are basic wind speeds in the cities for 50 years return period. These issues suggest the need for gathering experience from other countries, review the specifications given in international codes and make necessary recommendations.
Above mentioned examples indicate the need for developing a comprehensive framework for the Indian UBE for achieving sustainability in different components of an UBE in order to ensure Sustainable Urban Built-Environment (i.e., "SustainUBE", hereafter) without compromising human health.
In order to increase collaboration between Indian and German experts in the areas of sustainable urban built-environment and to promote visibility of German collaboration in addressing Indian issues, this study proposes to organize a three-day symposium in IIT Delhi (India) on following eight problem areas: (1) Water, (2) Air, (3) Solid-waste, (4) Climate change issues, (5) Building-climate interaction, (6) Energy, (7) Environmental systems analysis, and (8) Human health risk assessment (Table 1). Findings of this symposium are expected to provide insights about issues hindering sustainable development of Indian UBE, which is an important first step for taking appropriate measures.
In the proposed symposium following issues will be addressed and discussed by the Indo-German experts under different themes:
- Study of Water-Energy-Climate change relationships,
- Development of databases and associated tool-boxes for Integrated Water Resources Management (IWRM),
- Assessment of existing technologies and development of new technologies, such as such as clean and cheap energy, non-conventional sources including solar power, crop water management, recycling, etc.,
- Assessment of ambient air quality in urban settings including micrometeorology,
- Assessment of indoor air quality (IAQ) in terms of PM10, PM2.5 and volatile organic compounds (VOCs),
- Establishment of Indoor/outdoor (I/O) relationships,
- Simulation of IAQ using ambient air quality model through established I/O relationships,
- Investigation of type and quantity of the various solid wastes generated in an UBE,
- Investigation of viable onsite treatment/disposal technique for each type of generated solids wastes,
- Identification of issues related to climatic effects on tall building (Building-Climate Interaction)
- Development of a tool/ performance indicator for conducting environmental assessment of high rise buildings.
- Identification of issues pertinent to assessment of human health risks due to exposures of chemical and microorganisms-based emerging contaminants (ECs, hereafter) from water, air, and solids media in an UBE,
- Development of a framework for conducting human health risk assessment in an UBE,
- Development of strategies for cost-effective intervention in water and environmental systems and their consequences for alternative scenarios,
- Energy implications in buildings due to change in environmental parameters- Evaluation through OTTV concepts & control through greener materials,
- Projection of future energy use and CO2 emission issues in an UBE and simulation of annual energy consumption in different buildings using available projected climatic data,
- Assessment of effects of climate change on structural design of high-rise buildings from extreme variations such as high wind speeds and other changes across the vertical profile (height) as well as their return periods,
- Evaluation of impacts related to high-rise buildings in the built environment due to the climatic variations and ascertaining if the designs of high-rise buildings are significantly affected by such variations,
- Scientific determination of the design wind speeds in cyclonic regions with reference to changing wind regime due to climate change, and
- Corroboration of wind load specifications in code specifications and possible recommendations as may deem necessary.
It is worth mentioning here that abovementioned issues/problems only represent some of the aspects of the sustainable urban built-environment-related problems and a holistic effort will be taken at the proposed symposium to address different issues in a comprehensive manner.
- Prof. Dr. Uwe Schlink, Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
- Dr. Gerhard Strauch, Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
- Dr.-Ing. Susanne Böhler-Baedecker, Forschungsgruppe Energie-, Verkehrs- und Klimapolitik
- PD Dr.-Ing. habil. Michael Kasperski, Privatdozent für Entwurfsgrundlagen im Konstruktiven Ingenieurbau
- Dr. Ulrich Franck, Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
- Andreas Niebel, MSc., Karlsruhe Institute of Technology, Institute of Catalysis Research and Technology (IKFT)
- Prof. A. K. Gosain, Civil Engineering/Indian Institute of Technology Delhi
- Prof. B. Bhattacharjee, Civil Engineering/Indian Institute of Technology Delhi
- Prof. M. Khare, Civil Engineering/Indian Institute of Technology Delhi
- Associate Prof. A. K. Nema, Civil Engineering/Indian Institute of Technology Delhi
- Prof. A. K. Mittal, Civil Engineering/Indian Institute of Technology Delhi
- Prof B. J. Alappat, Civil Engineering/Indian Institute of Technology Delhi
- Assistant Prof. A. Kumar, Civil Engineering/Indian Institute of Technology Delhi
- Associate Prof. R. Khosa, Civil Engineering/Indian Institute of Technology Delhi
- Assistant Prof. V. Matsagar, Civil Engineering/Indian Institute of Technology Delhi
- Assistant Prof. S. Bishnoi, Civil Engineering/Indian Institute of Technology Delhi
- Prof. P. Sharma, Department of Natural Resources, TERI University
- Scientist Fellow R. Goyal, NEERI Delhi Zonal Laboratory, Delhi
- Deputy Director & Head J. K. Bassin, NEERI Delhi Zonal Laboratory, Delhi
- Assistant Prof. A. Kalamdad, Civil and Environmental Engineering, IIT Guwahati
- Associate Prof. S. Jain, Department of Natural Resources, TERI University
- Senior Manager Environment Dr. Poonam K Ahluwalia, TCE
- Assistant Prof. Dr. Arnab Sarkar, Department of Mechanical Engg., Indian Institute of Technology, Banaras Hindu University
- Dr. Priyanka Kulshreshtha, Department of Resource Management and Design Application (RMDA), Lady Irwin College, Delhi
- Mr. Hari Hedge, Wipro Sustainability Bangalore
- Mr. Ramamoorthy Venkateswaran, Wipro Sustainability Bangalore