process analysis Articles

  • Development and Application of Oxygen Demand Testing using Industrial Effluent - Case Study

    Abstract The purpose of this study is to develop capacity and protocols for oxygen demand testing that can be used for instruction and research within the BioScience Technology program. For application purposes we chose the PeCOD® Analyzer which offers a unique nanotechnology-based approach to Chemical Oxygen Demand (COD) analysis. Background ...


    By MANTECH

  • Exergy analysis of process heaters

    A thermodynamic analysis is proposed to investigate the entropy generation in process heaters. It is found that the major portion of the exergy losses occur in the stack. It is also found that the excess air decreases the first law efficiency while the second law efficiency remains nearly constant. Although the first law efficiency is found to be of the order of 70-90%, the second law efficiency ...


    By Inderscience Publishers

  • Energy analysis of manufacturing process of a motorcycle

    Energy analysis of a production unit helps to quantify the energy consumed at different stages, thus providing estimates of energy and material wastage, if any. From the general principles of energy analysis involving mass conversion efficiencies and the energy inputs at various stages of the production process of a motorcycle producing industry, namely Honda Motorcycle and Scooter India Pvt. ...


    By Inderscience Publishers

  • Biofuel Process Analysis case study

    We are a global leader AMETEK, Inc. is a leading diversified manufacturer of electronic instruments and electromechanical devices. We have over 11,000 colleagues at more than 80 plants across the United States and in 14 countries around the world. Supporting those operations are more than 80 domestic and international direct sales and service locations in over 30 countries worldwide. ...

  • Comparative analysis of the thin-film desalination plant process

    Thin-film installations with different heating surface orientations are widely used in seawater technology. Despite the presence of various thermal schemes and the construction of evaporating devices for installations of this type, comparisons of their power output are not available. We have carried out a comparison of the thermal schemes of MSF and thin-film installations in order to determine ...


    By Inderscience Publishers

  • An overview of exergy analysis for chemical process industries

    Among all the industrial sectors, the chemical industry is one of the energy intensive industry with 33% share in industrial energy use. Increasing cost of raw materials, infrastructure cost and energy cost increases burden on the profit margin of the chemical sector. Chemical industries are looking for improved process design and efficient equipments where energy consumption can be reduced. In ...


    By Inderscience Publishers

  • PHASUITE: AN AUTOMATED HAZOP ANALYSIS TOOL FOR CHEMICAL PROCESSES

    INTRODUCTION Safety is an important issue in process design and operation in chemical industry. It is even more critical for modern chemical manufacturing processes, which are either operated under extreme conditions to achieve maximum economic profit, or are highly flexible, such as the specialty chemical or pharmaceutical processes. The importance of safety analysis in process operation is ...

  • Comparison and analysis of the expansion process in a CO2 transcritical cycle

    The isentropic and isenthalpic expansion processes in a CO2 transcritical cycle were analysed thermodynamically. It was found that the effective refrigeration capacity of the cycle with the isentropic expansion process is higher than the cycle with the isenthalpic expansion process. The increment is slightly larger than the expansion work recovered because of the transcritical nature of the ...


    By Inderscience Publishers

  • Analysis of a complex produced in the Fenton oxidation process

    The absorbances of different concentrations of Fe2+, Fe3+ and H2O2 were investigated by UV-visible spectrophotometry without separating the substances. The law of complex formation was studied by considering changes in the UV-vis spectra of mixtures of these three substances. The results show that upon eliminating the influence of the substrate, an ...


    By IWA Publishing

  • Risk analysis of information systems by event process chains

    Information and Communication Technology (ICT) has an important impact on critical infrastructure operation. However, the current use of risk analysis techniques has reached its limits when analysing these systems at least in practical terms. The application of extended event process chains (EPC) bypasses some of the difficulties, as they model business processes within an information system ...


    By Inderscience Publishers

  • Econometric modelling, estimation and policy analysis of oil spill processes

    This paper explores approaches to model specification suitable for empirical investigation of a stochastic oil spill model. We focus on the effects of economic incentive measures on the frequency of oil spills, spill size, and volume of oil spilled. We look into the relationships between parameters that describe the spill generation process and the enforcement effort, using data for the Black and ...


    By Inderscience Publishers

  • An analysis of diffusion process of mobile phone services in rural India

    Fast technological developments with advance mobile phone services have become a critical issue for the rural areas. Though the advance technological mobile phone applications have ubiquitously been offered to the rural markets in India, the widening gap between rural and urban teledensity despite all measures has raised a serious concern for the policy makers. This study tries to explore the ...


    By Inderscience Publishers

  • Exergy analysis and performance evaluation of CNG to LNG converting process

    A process for converting Compressed Natural Gas (CNG) to Liquefied Natural Gas (LNG) is modelled thermodynamically and effects of design and operating parameters on exergy destruction and performance of the process are studied. Results show that CNG pressure, pressure after Joule?Thomson valve, and temperature of CNG after heat exchanger of refrigerating system have significant effects on optimum ...


    By Inderscience Publishers

  • Stakeholder involvement in water management: the role of the stakeholder analysis within participatory processes

    Water is a central resource supporting human activities and ecosystems and it is required for different purposes and uses that are often conflicting. Existing water-related problems are expected to increase and conventional water resource management systems are not likely to be able to face future challenges. There is the need for an integrated water resources management, which should be ...


    By IWA Publishing

  • The Pitfalls of Process TOC analysis and how to avoid them case study

    Since the introduction of Total Organic Carbon (TOC) Analyzers by Dow, Union Carbide and Automated Environmental Systems in thel960,s,l-5\ they have proven to be an invaluable tool in the environmental and process monitoring fields. While technologies have advanced since then, certain performance characteristics required for true process control have been notably absent. The purpose of this paper ...


    By TOC Systems, Inc.

  • Comparative analysis of extended aeration and Fenton process in landfill leachate treatment

    This research is undertaken to investigate various operating conditions for minimising sludge disposal and maximising chemical oxygen demand from leachate. With conventional extended aeration process the optimum removal of COD and colour were 36% and 24% respectively. In Fenton process, for optimum pH of 5 and optimum H2O2/Fe ...


    By Inderscience Publishers

  • Analysis of the impact of intermittent distribution by modelling the network-filling process

    In many countries, users acquire private tanks to reduce their vulnerability to water scarcity. In such conditions, water managers often apply intermittent distribution in order to reduce the water volumes supplied to the users. This practice modifies the hydraulic behaviour of the network and determines competition among users that need to collect enough water resource for their uses. ...


    By IWA Publishing

  • Internationalisation process: analysis of a cooperation network in the Vinho Verde sector for the US market

    Internationalisation as a strategic element in the current context of globalisation is increasingly a determinant of business success. Based on the literature in the area of internationalisation and networks, through a case study - a cooperation network involving small and medium–sized enterprises (SMEs) - this article intends to highlight the relationship between the various partnerships ...


    By Inderscience Publishers

  • Sensitivity analysis on parameters and processes affecting vapor intrusion risk

    A one‐dimensional numerical model was developed and used to identify the key processes controlling vapor intrusion risks by means of a sensitivity analysis. The model simulates the fate of a dissolved volatile organic compound present below the ventilated crawl space of a house. In contrast to the vast majority of previous studies, this model accounts for vertical variation of soil water ...


    By John Wiley & Sons, Ltd.

  • Wavelet-based trend analysis of hydrological processes at different timescales

    This study analyzes involved trends in stream flow and precipitation data at monthly, seasonal and annual timescales observed at six precipitation and four stream flow stations of Tampa Bay using non-parametric Mann–Kendall (MK) and discrete wavelet transform (DWT) methods. The MK test and sequential MK analysis were applied to different combinations of DWT after removing the effect of ...


    By IWA Publishing

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