process analysis Articles

  • What is TPO and Why is it Performed?

    Temperature programmed oxidation (TPO) is an analytical technique capable of establishing the oxidation of an element or compound through thermal excitation, with various applications in the field of catalysis. The performance of TPO requires a furnace or microreactor capable of increasing temperatures of a catalyst in precise increments up to extreme conditions, for example in brackets of ...


    By Hiden Analytical Ltd.

  • Validation of Salt Water Disposal Well Treatment Plants with Handheld Oil in Water Sample Analyzer

    Salt Water Disposal (SWD) well operators often dispose a substantial volume of oil inadvertently when injecting salt water, thereby losing the opportunity to sell the oil on the market and potentially reducing the ability to inject water in the well. Injection facilities are typically operated with minimal instrumentation or system optimization, which means the operators don't know how much, or ...

  • The Boulder Atmospheric Observatory

    Abstract The Boulder Atmospheric Observatory (BAO) is a unique research facility for studying the planetary boundary layer and for testing and calibrating atmospheric sensors. The facility includes a 300 m tower instrumented with fast- and slow-response sensors, a variety of remote sensing systems, and a real-time processing and display capability that greatly reduces analysis time for ...

  • The Applications of an Industrial Drying Oven

    Industrial drying ovens are designed to simultaneously heat a material while withdrawing moisture from its surface, a process with many commercial, pharmaceutical, and industrial applications. These are primarily used for batch processes – though varying product or research requirements need vastly different mechanisms and components. However, there is a basic three-stage operating process ...


    By Nexgen Exhibitions Pvt. Ltd.

  • 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

  • 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. ...

  • 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

  • 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

  • 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 ...

  • 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

  • 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

  • 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.

  • Sludge reduction and performance analysis of a modified sludge reduction process

    A modified sludge process reduction activated sludge (SPRAS) technology was developed by inserting a sludge process reduction (SPR) module, composed of an aeration tank and a settler, before the activated sludge system was proposed in this study. Compared with the anaerobic/anoxic/aerobic (AAO) process, the SPRAS resulted in a remarkable decrease in sludge production by 76.6%; sludge ...


    By IWA Publishing

  • 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

  • Sustainability analysis of rapid prototyping: material/resource and process perspectives

    Sustainability of rapid prototyping (RP) depends on both model–building materials (wooden–materials, photo–resins, etc.) and model–building processes (additive processes - SLA, SLS, etc.; and subtractive processes - e.g., wood–sawing). In this study, a sustainability index is developed for RP processes, and this index incorporates such sustainability factors as volumetric quantity of ...


    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

  • Analysis of suspended solids transport processes in primary settling tanks

    The paper shows the results of a long-term research comprising FLUENT-based numerical modeling, in situ measurements and laboratory tests to analyze suspended solids (SS) transport processes in primary settling tanks (PSTs). The investigated PST was one of the rectangular horizontal flow PSTs at a large municipal wastewater treatment plant (WWTP) of a capacity of 500,000 population ...


    By IWA Publishing

  • 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

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