Department of Mechanical engineering
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Item Supply Chain of Sanitary Ware: Sustainability Assessment(The InfoLibrary, 2018) Sangwan, Kuldip SinghSanitary wares are the integral part of construction materials but there is hardly any study in the literature which shows the environmental impacts from the sanitary ware. This paper aims at assessing sustainability of a ceramic sanitary ware supply chain by quantifying the environmental impacts from materials and resources used throughout the different phases of a sanitary ware life cycle. The impacts are quantified using ReCiPe endpoint and midpoint assessment methods with Umberto NXT Software and eco-invent 3.0 database. This study uses climate change, fossil depletion, human toxicity, metal depletion, ozone depletion, terrestrial acidification, water depletion, damage to ecosystem quality, human health, and resources assessment categories to quantify the environmental impacts. The life cycle assessment finds that consumption of heavy fuel oil, electricity, grass, and cement mortar is primarily responsible for the negative impacts on the environment. It is also found that manufacturing and transportation phases of the supply chain have maximum contribution to the environmental degradation. The methodology, assessment methods and impact categories used in the study can be used by the other ceramic enterprises for the identification and benchmarking of environmental hotspots in their supply chains. It is expected that this study will be useful for the policy makers as well as the manufacturer to find the key areas for decreasing the environmental impacts and enhancing sustainability of a sanitary ware supply chain.Item A sustainability assessment framework for cement industry – a case study(Emerald, 2019-02) Digalwar, Abhijeet K.; Sangwan, Kuldip SinghThe purpose of this paper is to develop a framework and key performance indicators (KPIs) to assess the sustainability of the manufacturing organizations along the integrated supply chain.Item An ensemble evolutionary approach in evaluation of surface finish reduction of vibratory finishing process(Emerald, 2015-07) Sangwan, Kuldip SinghThe functioning of multi-gene genetic programming (MGGP) algorithm suffers from the problem of difficulty in model selection. During the preliminary analysis, it is observed that there are many models in the population whose performance is better than that of the model selected with a little compromise on training error. Therefore, an ensemble evolutionary (Ensemble-MGGP) approach is proposed and applied to the data obtained from the vibratory finishing process. The paper aims to discuss these issues.Item Product and Process Characteristics for Green Manufacturing: Evidence From Indian SMEs(ASME, 2011-04) Sangwan, Kuldip SinghWith growing awareness of environmental issues — from global warming to local waste disposal — business and government have come under increasing pressure to reduce the environmental impacts involved in the production and consumption of goods and services. However, organizations consider environmental assessment fairly late in the product development process, which generates additional design constraints and increases the development costs. The integration of environmental requirements through life-cycle stages of a product is a likely approach, leading to a new paradigm of green manufacturing. Empirical studies by various authors have indicated that Small and Medium Enterprises (SMEs) find it difficult to implement environmental issues in product and process design because of lack of time, resources, expertise and/or framework in comparison to large enterprises. This paper presents the results of an empirical study carried out on Indian SMEs to develop product and process characteristics of green manufacturing. Fifteen product and four process characteristics have been developed to be considered during the product and process design to address the environmental issues for the life cycle of the product. These characteristics provide an easy to use self assessment framework to the SMEs to address the various environmental issues during the product and process design. The characteristics identified from the literature have been validated by using SPSS for Windows statistical tool. The reliability and validity of the data has been assessed by the Cronbach alpha and factor analysis respectively.Item Assessment of Alternative Propulsion Systems for Vehicles(Springer, 2011-01) Sangwan, Kuldip SinghConcern for the environment, the approaching end of fossil fuels and the dependence on oil exporting countries has revived the interest in alternative propulsion systems for vehicles. However, an assessment of alternative propulsion systems with respect to sustainability is very complex due to the variety of technologies as well as unsecure and conflicting economic, ecological and social consequences. This study provides a framework for assessing alternative propulsion systems for vehicles using the AHP methodology. A criteria catalogue is derived from existing approaches and the analysis of propulsion systems, their market situation and surrounding conditions. Its application is illustrated by the assessment of two exemplary propulsion systems.Item Integrated Lean Management System for Sustainable Development: A Conceptual Model(Excel Publishers, 2011) Sangwan, Kuldip SinghSustainability manufacturing practices like lean and green manufacturing seek to optimize production efficiency while minimizing environmental impact and maintaining social equity. It is also well knowing fact that company that adopt sustainable practices are able to achieve better quality, improved productivity and profitable growth. Among these lean is an important practice that leads us towards sustainability initiatives by eliminating waste at all levels in system and using the resources efficiently. In this paper an integrated lean sustainability development model has been proposed to integrate supplier, organization and customer.Item Evaluation and comparison of environmental performance for shackle insulators – a case study(Emerald, 2019-09) Sangwan, Kuldip SinghThe purpose of this paper is to compare environmental performance of two shackle insulator manufacturing enterprises in India by evaluating and quantifying the life cycle environmental impacts in these enterprises using ISO 14040 guidelines.Item Performance Measurement System for Green Manufacturing(BITS Pilani, 2006) Sangwan, Kuldip Singh; Digalwar, Abhijeet K.Performance measurement system (PMS) plays an important role in the successful implementation of advanced manufacturing systems like green manufacturing. However little attention has been paid to design and implement performance measurement systems (PMSs) for green manufacturing. The paper highlights the imperatives of performance measurement systems (PMSs) for green manufacturing and review some of the most widely used PMSs. A PMS based on the traditional hierarchical system is presented for green manufacturing.Item Employee involvement and training in environmentally conscious manufacturing implementation for Indian manufacturing industry(IEEE, 2014) Sangwan, Kuldip SinghEmployee involvement and employee training are most important and vital principles for the successful implementation of any newer manufacturing system or modern practice in any organization because the newer systems/practices require changed roles for people at all levels. The general human tendency to resist change understood properly may lead to dysfunctional implementation of newer systems/practices. Environmentally conscious manufacturing (ECM) being a new paradigm in manufacturing requires the changed roles for employees. The management must have measures to convince the shareholders that the plan to implement ECM has taken care of changed roles of people. This paper identifies the employee involvement and employee training measures for the successful implementation of ECM. The identified measures have been validated by a case study of Indian large scale enterprises. The measures identified from the literature have been validated by using SPSS for Windows statistical tool. The reliability and validity of the data has been assessed by the Cronbach alpha and factor analysis respectively. The results provide sure evidence that the identified measures are highly reliable and valid.Item Investigation of mechanical strength of 2D nanoscale structures using a molecular dynamics based computational intelligence approach(World Scientific, 2015) Sangwan, Kuldip SinghA molecular dynamics (MD) based computational intelligence (CI) approach is proposed to investigate the Young modulus of two graphene sheets: Armchair and Zigzag. In this approach, the effect of aspect ratio, the temperature, the number of atomic planes and the vacancy defects on the Young modulus of two graphene sheets are first analyzed using the MD simulation. The data obtained using the MD simulation is then fed into the paradigm of a CI cluster comprising of genetic programming, which was specifically designed to formulate the explicit relationship of Young modulus of two graphene structures. We find that the MD-based-CI model is able to model the Young modulus of two graphene structures very well, which compiles in good agreement with that of experimental results obtained from the literature. Additionally, we also conducted sensitivity and parametric analysis and found that the number of defects has the most dominating influence on the Young modulus of two graphene structures.