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Journal articles on the topic 'PFD–Process Flow Diagram'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Wulandari, Yeni Ria, Yeni Variyana, Dedi Teguh, et al. "PELATIHAN PEMBUATAN PROCESS FLOW DIAGRAM (PFD) MENGGUNAKAN APLIKASI VISIO DI SMKN 8 BANDAR LAMPUNG." SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan 7, no. 1 (2023): 380. http://dx.doi.org/10.31764/jpmb.v7i1.13512.

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ABSTRAKPengembangan pendidikan Sekolah Menengah Kejuruan (SMK) di Indonesia harus diarahkan untuk beradaptasi dengan dinamika global dan nasional khususnya terhadap Revolusi Industri 4.0. Berdasarkan penerapan Kurikulum Merdeka, program keahlian yang ada di SMK Negeri 8 Bandar Lampung salah satunya adalah Teknik Kimia Industri dengan peserta sebanyak 25 orang. Adapun tujuan dari kegiatan pengabdian kepada masyarakat (PKM) yaitu memberikan pelatihan desain process flow diagram (PFD) menggunakan microsoft visio kepada siswa jurusan teknik kimia di SMKN 8 Bandar Lampung. Pengetahuan, keterampilan

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Missyurin, Alexey, Diana-Luciana Cursaru, Mihaela Neagu, and Marilena Nicolae. "Hybrid Process Flow Diagram for Separation of Fusel Oil into Valuable Components." Processes 12, no. 12 (2024): 2888. https://doi.org/10.3390/pr12122888.

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Ethanol production by fermentation results in obtaining, in addition to the main product, ethyl alcohol, by-products and secondary products, which include carbon dioxide, fusel oil, and ester–aldehyde cut. Fusel oil, despite its low yield and the large volume of ethanol production, accumulates at distilleries, which ultimately raises the question of its disposal or the rational use of this by-product. Fusel oil, being a complex mixture, can serve as a source of technical alcohols used in various sectors of the economy, including the food industry, pharmaceuticals, organic synthesis, perfume, a

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3

Ratnasabapathy, S., S. Perera, and A. Alashwal. "A case study of construction and demolition waste management process flow in mega infrastructure projects in Australia." IOP Conference Series: Earth and Environmental Science 1101, no. 6 (2022): 062022. http://dx.doi.org/10.1088/1755-1315/1101/6/062022.

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Abstract The rapid growth of population and associated urbanization and economic development calls for increased demand for infrastructure development to meet ongoing and future demands. A better understanding of the waste management (WM) processes would help to manage large volumes of waste effectively at construction sites, maximise the value of resources and improve environmental and economic performances. This research aims to investigate the WM processes associated with different types of construction and demolition (C&D) waste generated by a mega infrastructure project through a case

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4

Pérez Saavedra, José Luis, Antonio Gutiérrez Osorio, and Gonzalo Reyes Manríquez. "Análisis de operación y riesgos en la disciplina de instrumentación y control." Teknos revista científica 15, no. 1 (2015): 52. http://dx.doi.org/10.25044/25392190.477.

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En el desarrollo de proyectos en la disciplina de la Ingeniería de Control e Instrumentación de Procesos Industriales (Instrumentation y Control, I y C), el ingeniero de especialidad trabaja sobre documentos provenientes que, en etapas iniciales de un proyecto, vienen de la fase de Ingeniería Conceptual. Uno de los documentos primordiales para esto es el diagrama de flujo del proceso (Process Flow Diagram, PFD), el cual a su vez, se empleará para el diseño del PyID (Piping and Instrument Diagram). De esta forma, una de las tareas primarias para el Ingeniero de IyC es recoger la información de

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5

Ortiz Porras, Jorge Enrique, Andrei Mijailo Bancovich Erquínigo, Harold Smith Quintana Saavedra, Paola Lisbeth Crispin Chamorro, and Lisseth Margarita Huayanay Palma. "Modelo de gestión basado en el mantenimiento productivo total (TPM) y Six Sigma para aumentar la efectividad global de los equipos (OEE) en una empresa de confecciones de Lima, Perú." Industrial Data 27, no. 2 (2025): 123–52. https://doi.org/10.15381/idata.v27i2.26975.

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This article addresses the challenge of low overall equipment effectiveness (OEE) within the textile industry. It identifies the need to enhance equipment availability, quality, and performance to tackle sectoral challenges. The main objective of this research study aimed to develop and implement a management model based on total productive maintenance (TPM) and Six Sigma, using a textile company as a case study. A sample of 28 machines from the Weaving Department was taken and various tools were applied, including internal analysis, process flow diagram (PFD), failure mode and effects analysi

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Ali, Muhammad Saquib, Muhammad Yasir Khan, Zeeshan Akhtar, et al. "Proposed Industrial Scale Setup for Production of ZnO Nanoparticles Using Wet Chemical Synthesis Method." Key Engineering Materials 875 (February 2021): 146–52. http://dx.doi.org/10.4028/www.scientific.net/kem.875.146.

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In this study, an industrial method is provided for the synthesis of zinc oxide (ZnO) nanoparticles by a simple and economical wet chemical precipitation reaction between Zinc Chloride (ZnCl2) and Sodium Hydroxide (NaOH) at low temperatures less than 80 °C. In first step, Small quantity of ZnO powder is produced in laboratory scale. As-synthesized lab-scale ZnO powders were characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Orthogonal experiments were performed to find out the optimal conditions for the maximum yield of ZnO powder. In second step, the process f

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7

Bryan, L. Guibijar. "Data Flow Diagram DFD in Developing Online Product Monitoring System OPMS of DTI." International Journal of Trend in Scientific Research and Development 2, no. 4 (2018): 1–7. https://doi.org/10.31142/ijtsrd18394.

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The paper examined the model of data flow diagram in developing OPMS of Department of Trade and Industry. It based from waterfall model in which descriptive research was applied to the existing product monitoring of DTI. Data from existing monitoring of DTI were interpreted and created system data flow diagram DFD . The data flow diagram as applied in the analysis of software development and examined top down method that takes process the input and output of data flows. Thus, the method of developed based on the data flow diagram created will enhance the security and order of the developed onl

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8

Gaudereto, Helenize, LUCAS CABRAL, and FABIO RODRIGUES. "SIMULATION AND ECONOMIC TECHNICAL ANALYSIS OF LEVULINIC ACID PRODUCTION FROM SUGARCANE BAGASSE." Engevista 19, no. 1 (2017): 236. http://dx.doi.org/10.22409/engevista.v19i1.811.

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The increasing energy demand in contrast to the difficulties encountered in obtaining fossil fuels, threatens the productivity of modern industry. In this context, the use of bagasse derived from sugarcane mills may represent not only an environmental alternative, as a source of capital, both in power generation, as in the production of chemical intermediates. The Brazil in particular is highlighted in the production of sugarcane, bagasse being an abundant and inexpensive waste. Thus, the present work deals with one of the alternative to its use: the generation of levulinic acid from the acid

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Tan, Kok Wei, Brian Sheng Quan Sia, Ker Yee Tey, et al. "Turning Waste into Wealth: A Conceptual Design of Limonene Production Plant from Waste Rubber Tyre." Jurnal Kejuruteraan 36, no. 3 (2024): 1035–53. http://dx.doi.org/10.17576/jkukm-2024-36(3)-17.

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Limonene production represents a compelling opportunity in the global market, given its competitive landscape dominated by a few key players who control nearly half of the industrial-grade limonene market. Due to the high polyisoprene content in vehicle tyres, along with the rising number of waste rubber tyres, the production of limonene by pyrolysis of tyres may represent a future trend to turn waste into wealth. Hence, a conceptual plant design was carried out to determine the feasibility of limonene production from waste rubber tyres in Malaysia. This feasibility study involved Aspen Plus s

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10

Polkovnichenko, A. V., and T. V. Chelyuskina. "Distillation Separation of the Isobutyl Acetate–Acetic Acid–Isoamyl Acetate Industrial Mixture." Теоретические основы химической технологии 57, no. 4 (2023): 433–44. http://dx.doi.org/10.31857/s0040357123040097.

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The process of distillation separation of the isobutyl acetate (IBA)–acetic acid (AA)–isoamyl acetate (IAA) industrial mixture, which is a product of the large-capacity waste processing of the alcohol industry, is considered. Various versions of the process flow diagramm (PFD) are proposed and the operating parameters of the distillation columns for providing isolation of IAA and IBA with purity higher than 99.5 mol % from the IBA–AA–IAA industrial mixture are determined. For the IBA–AA, IBA–IAA, IBA–SF, and AA–SF systems the binary interaction parameters of the NRTL-HOC model were estimated.

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Ghoreishi, Mohammad, Paolo Venturini, Carmine Mongiello, Vinod Kumar Sharma, and Joginder Singh. "Implementing a gaseous fuel mixing system to use in a 30 kW burner and survey on laminar flame speed." International Journal of Agricultural Invention 8, no. 1 (2023): 87–106. https://doi.org/10.46492/ijai/2023.8.1.12.

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This paper contains the optimal design of a natural gas and hydrogen supply and mixing station for the combustor test facility and the laminar flame speed and burning velocity investigation. Our first goal is a piping/process and instrumentation drawing (P&ID) and Process Flow Diagram (PFD) which include the type and connection of different gases, flow rates, tube sizing, and implemented equipment in this design and it is divided into two parts. One part is provided by the Catholic University of Leuven after considering Health and Safety and Environment (HSE) actions. The second and more c

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Гончаренко, Д. В., та В. Б. Мокін. "Метод автоматизованого генерування PFD-діаграм для проєктування IoT-систем на базі мережі Sigfox". Scientific Bulletin of UNFU 35, № 3 (2025): 88–95. https://doi.org/10.36930/40350309.

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Запропоновано нові підходи до автоматизації процесу проєктування інформаційних систем на підставі технологій Інтернету речей (IoT) з урахуванням специфіки енергоефективних мереж типу Sigfox. Встановлено, що ефективне врахування обмежень таких мереж потребує розроблення спеціалізованих методів розроблення технологічних схем. З'ясовано, що застосування великих мовних моделей LLM (англ. Large Language Model) дає змогу забезпечити належний рівень автоматизації процесів побудови PFD-діаграм (англ. Process Flow Diagrams) на підставі текстових описів, які вводить користувач. Охарактеризовано метод ко

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13

Ratriwardhani, Ratna Ayu, Merry Sunaryo, Octavianus Hutapea, and Muslikha Nourma Rhomadhoni. "Application of failure mode effect analysis on hazard identification and risk control." Bali Medical Journal 11, no. 2 (2022): 892–96. http://dx.doi.org/10.15562/bmj.v11i2.3146.

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Introduction: PT. X is a chemical industry with high hazards, especially those related to hazardous and toxic materials; the company also uses equipment and machines with fire or explosion hazards. Component's failure to operate is a major problem in PT. X. The specific objective of this study was to evaluate hazards and control the risks to prevent accidents and protect company assets, especially for employee safety. Methods: The data collected is Process Flow Diagram (PFD), Material Safety Data Sheet (MSDS), and component failure data. The risk assessment for the components of Sodium Silicat

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14

Zhang, Hongyuan, Jiayu Qiao, and Xin Zhang. "Nonlinear Dynamics Analysis of Disc Brake Frictional Vibration." Applied Sciences 12, no. 23 (2022): 12104. http://dx.doi.org/10.3390/app122312104.

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The brake system is a key component to ensuring the safe driving and riding comfort of the vehicle, and the friction between the brake disc and the friction plate is the main source of vibration and noise. Therefore, in order to improve the stability of the braking system and reduce the generation of vibration, a six-degree-of-freedom nonlinear dynamics model was established, and using the Stribeck friction model and related parameters, the dynamic equation was solved by the Runge-Kutta method. The bifurcation diagram, Lyapunov diagram, time domain diagram, frequency spectrum diagram, and phas

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15

Deni, Nur Fauzi, and Ari Setyawan Dimas. "OPTIMISASI CHEMICAL OXYGEN DEMAND PRODUCED WATER PADA POLISHING UNIT." MADANI: Jurnal Ilmiah Multidisiplin 1, no. 2 (2023): 79–81. https://doi.org/10.5281/zenodo.7782294.

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Polishing unit pada Saka Indonesia Pangkah Limited menggunakan <em>biological treatment </em>yang memanfaatkan bakteri aerob untuk mengurangi kadar <em>Chemical Oxygen Demand</em> (COD) effluent pada produce water saat eksplorasi minyak agar sesuai dengan baku mutu. Untuk menjaga agar bakteri tetap hidup diperlukan tambahan substrat berupa nitrat dan fosfat yang dijaga pada kondisi tertentu. Uji data operasional menunjukan bahwa hubungan antara kadar COD effluent dengan variabel-variabel lain non linier dan kompleks. Sehingga dibutuhkan pemodelan <em>black box</em> seperti <em>Artificial Neura

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Garrido-Baserba, M., R. Reif, I. Rodriguez-Roda, and M. Poch. "A knowledge management methodology for the integrated assessment of WWTP configurations during conceptual design." Water Science and Technology 66, no. 1 (2012): 165–72. http://dx.doi.org/10.2166/wst.2012.087.

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The current complexity involved in wastewater management projects is arising as the XXI century sets new challenges leading towards a more integrated plant design. In this context, the growing number of innovative technologies, stricter legislation and the development of new methodological approaches make it difficult to design appropriate flow schemes for new wastewater projects. Thus, new tools are needed for the wastewater treatment plant (WWTP) conceptual design using integrated assessment methods in order to include different types of objectives at the same time i.e. environmental, econom

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17

Fuenmayor, Carlos A., Omar G. Baron-Cangrejo, and Paula A. Salgado-Rivera. "Encapsulation of Carotenoids as Food Colorants via Formation of Cyclodextrin Inclusion Complexes: A Review." Polysaccharides 2, no. 2 (2021): 454–76. http://dx.doi.org/10.3390/polysaccharides2020028.

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The use of natural carotenoids as food colorants is an important trend of innovation in the industry due to their low toxicity, their potential as bio-functional ingredients, and the increasing demand for natural and organic foods. Despite these benefits, their inclusion in food matrices presents multiple challenges related to their low stability and low water solubility. The present review covers the main concepts and background of carotenoid inclusion complex formation in cyclodextrins as a strategy for their stabilization, and subsequent inclusion in food products as color additives. The re

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18

Sunanta, Piyachat, Vassilis Kontogiorgos, Noppol Leksawasdi, et al. "Loss Assessment during Postharvest and Handling of Thai Garlic Used for Processing." Horticulturae 9, no. 4 (2023): 482. http://dx.doi.org/10.3390/horticulturae9040482.

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Garlic is one of the most economically important crops cultivated and consumed worldwide. The rising demand for garlic in the functional food market is driven by the growing interest in using processed products and supplements for benefits in health and wellbeing. Prior to processing, freshly harvested Thai garlic undergoes six distinct curing procedures; however, the losses and initial quality evaluation of the cured garlics have never been assessed. The research aims to evaluate losses and types of biomass during post-harvest processing using lab scale waste composition and mass–flow analyse

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19

Ostroukhov, N. N., and E. V. Chumakova. "ENGINEERING AND MODELING OF OPTIMAL MANEUVERING OF VESSELS WITH VORTEX PROPULSION UNITS." World of Transport and Transportation 15, no. 5 (2017): 14–27. http://dx.doi.org/10.30932/1992-3252-2017-15-5-2.

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[For the English abstract and full text of the article please see the attached PDF-File (English version follows Russian version)].ABSTRACT The paper proposes a schematic diagram of an additional device for vortex propulsion units of vessels and algorithms for computer simulation of their use for various maneuvering options. The paper describes the advantages of vessels with propulsion units in the form of generators of vortex pairs, including toroidal vortices (thermals), the efficiency of propulsion units of which increases with the increase in their dimensions. A comprehensive analysis of t

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Cidália, Pissarra de Matos, Carlos Oliveira Matias João, and Garrido Azevedo Susana. "Manufacturing Proceses control in Auto motive Industry." International Journal of Case Studies 3, no. 10 (2014): 83–90. https://doi.org/10.5281/zenodo.3523904.

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The manufacturing processes control is a very important activity in all companies. As this should be developed by a multidisciplinary team, it will affect all the product manufacturing process. So, it is very important that its implementation will be planned in order to be effective. If the correct methodology is used on the right time, it will be possible to prevent the majority of the potential problems and improve the manufacturing processes. The purpose of this article is to suggest a framework to control properly the processes in the automotive industry, using the right approach – F

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PINEGINA, O. A., and I. G. MOKRUSHIN. "IMPROVEMENT OF TECHNOLOGY FOR PREPARATION OF ALKALI METAL TRIS(PENTAFLUOROETHYL)TRIFLUOROPHOSPHATES." Herald of Technological University 27, no. 10 (2024): 58–62. https://doi.org/10.55421/1998-7072_2024_27_10_58.

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Alkali metal salts with the bulky tris(pentafluoroethyl)trifluorophosphate anion (FAP-3 anion, [(C2F5)3PF3]-) are promising as conductive salts in electrolytes and as modifying additives for the components of ion batteries, as well as sources of the most branched perfluoroethyl-substituted fluorophosphoric anion. This work discusses the fundamentals of the technology for producing perfluorinated alkali metal salts through the one-pot reaction of the carbonate or bicarbonate of a monovalent metal (Li, Na, K, Rb, Cs) with tris(pentafluoroethyl)trifluorophosphoric acid (HFAP-3, H+[PF3(C2F5)3]-),

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Lupachev, Egor V., Andrey A. Voshkin, Alexey V. Kisel’, Nikolai N. Kulov, Yulia A. Zakhodyaeva, and Andrei V. Polkovnichenko. "Separation of an Industrial Mixture of Decalin or Naphthalene Fluorination Products: Cis-Perfluorodecalin, Trans-Perfluorodecalin and Perfluoro(butylcyclohexane): Physicochemical, Thermophysical, and Spectral Data." Processes 11, no. 11 (2023): 3208. http://dx.doi.org/10.3390/pr11113208.

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New physicochemical data for trans-perfluorodecalin (trans-PDF) and cis-perfluorodecalin (cis-PFD) are presented. Based on the differential scanning calorimetry, the temperature and heat of the solid−liquid phase transition are determined. The coefficients of Antoine’s equation are calculated based on the experimental temperature–pressure dependence data. This article also presents data on the rheological properties («zero» shear viscosity and apparent activation energy for the viscous flow) of the studied compounds. The dependencies of refractive index and excess volume (density) on temperatu

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23

Mark, Kenneth C. Engcot. "Cryptography Using Linear Diophantine Equation." International Journal of Recent Research in Mathematics Computer Science and Information Technology 9, no. 1 (2022): 28–33. https://doi.org/10.5281/zenodo.6974146.

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<strong>Abstract:</strong> This study is focused on the encrypting and decrypting of messages using the Linear Diophantine Equation:  where , that is the integers  and  are relatively prime. Like any encrypting and decrypting process, a number code, the integers   and , and the flow of the process must be known to both the messenger and the receiver of the message. In this particular study, the message is encrypted by using the number code that results when the values of  and   are solved from the equations:   and    , where   an

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Van Gauwbergen, D., and J. Baeyens. "Macroscopic fluid flow conditions in spiral wound membrane elements: packed bed approach." Water Science and Technology 41, no. 10-11 (2000): 85–91. http://dx.doi.org/10.2166/wst.2000.0615.

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The modelling of the reverse osmosis process is needed to fully evaluate its potential and facilitate scale up. The definition of the flow regime in the concentrate channel is of paramount importance. The present paper describes our experimental investigations on RTD and relates the RTD response curves to the regime of flow in the concentrate channel. Results demonstrate (i) that dead zones are present; (ii) that both a Plug Flow with Dispersion (PFD) and Probabilistic Time Delay (PTD) model can be used to characterise the flow; and (iii) that PFD- and PTD-model parameters assume nearly consta

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Andreev, A. A., N. A. Belov, V. V. Makarova, et al. "Dispersion of Polyethylene Glycol in Perfluorodecalin for Liquid Phase Fluorination." Eurasian Chemico-Technological Journal 24, no. 3 (2022): 259–65. http://dx.doi.org/10.18321/ectj1439.

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This work aims to obtain the dispersions based on polyethylene glycols (PEGs) of various molecular masses (MM) and perfluorodecalin (PFD) for subsequent direct fluorination. The solubility of the components was estimated using laser interferometry and differential scanning calorimetry, and it was shown that PEGs with different MM are not highly compatible with PFD. The dispersions were prepared during sonication. Gel permeation chromatography (GPC) analysis indicated that MMs almost did not change in this process. While the sonication of PEG-PFD, there is a formation of dispersion with the par

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Oktavianto, Putra, Anis Noor Kundari, Ade Saputra, Imam Abdurrosyid, Munisatun Sholikhah, and Andri Saputra. "SAFETY INTEGRITY LEVEL ASSESSMENT AT URANIUM EVAPORATOR AND DEPOSITION VESSEL IN NON NUCLEAR REACTOR INSTALLATIONS." Urania : Jurnal Ilmiah Daur Bahan Bakar Nuklir 29, no. 1 (2023): 11. http://dx.doi.org/10.17146/urania.2023.29.1.6986.

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The operation of non-reactor nuclear installations that use nuclear material in the process must be ensured safely during the process. One of the assessments of the safety level of the protection system that has been owned by the installation is using the Safety Integrity Level (SIL) which assesses the safety level of the protection system based on the value of the risk reduction factor that the protection system can achieve. The uranium evaporator and deposition vessel at the Experimental Fuel Element Installation (EFEI) is one of the installations that uses nuclear material in the process so

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Karpov, N. V., N. N. Vakhromov, E. V. Dutlov, et al. "Process flow diagram of Slavneft-YANOS PJSC." World of Oil products the Oil Companies Bulletin 1, no. 1 (2021): 13–19. http://dx.doi.org/10.32758/2071-5951-2021-0-4-13-19.

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Novo-Yaroslavl oil refinery – now Slavneft -YANOS PJSC was commissioned in 1961, and since then has been one of the largest in russia, processing more than 15 million tons of crude oil per year. The company employs about 3000 people, including a large number of highly qualified specialists. The process of improving the process flow diagram for petroleum products production is ongoing, unique technological solutions and new processes are being introduced.

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Heranita, Ira, and Emenda Sembiring. "Plastic Flow Diagram as a Tool for Plastic Waste Management System Assessment (Case Study: Banyuwangi Regency and Jembrana Regency)." IOP Conference Series: Earth and Environmental Science 1257, no. 1 (2023): 012005. http://dx.doi.org/10.1088/1755-1315/1257/1/012005.

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Abstract Plastic waste is one of the biggest problems faced by Indonesia as the second largest contributor of plastic waste to the oceans in the world. The leakage of plastic waste from land to sea is generally caused by the lack of waste management in Indonesia. There are still many unsafe waste management practices carried out by Indonesian people. Therefore, an assessment and evaluation of waste management is needed to determine the appropriate intervention in waste management so as to reduce the leakage of plastic waste into the environment. Plastic Flow Diagram (PFD) applies the principle

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Lila Setiyani and Evelyn Tjandra. "System Design: Data Flow Diagrams of Sales Process, a Case Study of CV. Jatayu Catra Internusa." Jurnal E-Komtek (Elektro-Komputer-Teknik) 6, no. 1 (2022): 82–88. http://dx.doi.org/10.37339/e-komtek.v6i1.860.

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This study aims to analyze the flow of sales transaction data. The data flow is modeled using a data flow diagram. The procedure carried out for data flow analysis began by interviews with staff who handle sales, then proceeded to identify entities and documents that go in and out of these entities, then modelled the data flow into data flow diagrams, and taking into account the rules on data flow diagram modeling. The results of this study are data flow diagram modeling of sales transaction that can be used to perform advanced system models such as case modeling, entity relationship diagrams,

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Zhandauletova Rustembekovna, Farida, Toty Sabirovna Sanatova, Asel Amangeldievna Abikenova, Kairat Gabbasovich Mustafin, Turkestan Saidahmetovich Baipakbayev, and Svetlana Evgenievna Mananbaeva. "Designing a process flow diagram of wastewater treatment." DESALINATION AND WATER TREATMENT 114 (2018): 73–80. http://dx.doi.org/10.5004/dwt.2018.22401.

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Adler, M. "An algebra for data flow diagram process decomposition." IEEE Transactions on Software Engineering 14, no. 2 (1988): 169–83. http://dx.doi.org/10.1109/32.4636.

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32

Wang, Lian, and Tzui Raz. "Analytic hierarchy process based on data flow diagram." Computers & Industrial Engineering 20, no. 3 (1991): 355–65. http://dx.doi.org/10.1016/0360-8352(91)90007-s.

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Liu, Jing Yu, and Jiu Ju Cai. "Energy Flow’s Consumption Analysis in Iron & Steel Factory." Advanced Materials Research 524-527 (May 2012): 1967–71. http://dx.doi.org/10.4028/www.scientific.net/amr.524-527.1967.

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The energy flow process in iron & steel factory is composed of the production, conversion, using of all sorts of energy and waste gas removing. In accordance with the energy flow process, make use of the law of energy conservation and conversion, the energy flow diagram from the energy-consumption analysis, and it is constructed. The energy flow analysis model of iron & steel is designed based on the energy flow diagram. To adopt comparison method, the influence of each process energy-consumption on the energy consumption of iron and steel enterprise also discussed.

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Zheng, Danxing, and Wen Cao. "Retrofitting for DME process by energy-flow framework diagram." Chemical Engineering and Processing: Process Intensification 46, no. 1 (2007): 2–9. http://dx.doi.org/10.1016/j.cep.2006.03.018.

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Wang, Zhigang, Liye Zhang, Qi Wang, et al. "Flow field analysis of newtonian fluid flow induced by planetary and radial motion of drill string." Journal of Physics: Conference Series 2865, no. 1 (2024): 012005. http://dx.doi.org/10.1088/1742-6596/2865/1/012005.

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Abstract At present, in the process of oil drilling, the drill string is an essential downhole drilling tool. It is immersed in the hole filled with drilling fluid for a long time, and it is driven by the rotation of the rotary table to drill down. In this process, the drill string will not only rotate around its axis but also may rotate around the axis of the hole and produce radial motion. It is important to study the flow law of Newtonian fluid flow induced by drill string movement, which can effectively reduce drilling accidents caused by drill string vortex and buckling, thus reducing eco

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He, Zhilong, Dantong Li, Lantian Ji, Xiaolin Wang, and Tao Wang. "Investigation on the Mass Flow Rate of a Refrigerator Compressor Based on the p–V Diagram." Applied Sciences 10, no. 19 (2020): 6650. http://dx.doi.org/10.3390/app10196650.

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The refrigerant mass flow rate of a refrigerator compressor can only be measured by a mass flow meter and heat balance method. This paper focuses on the expansion and compression phase in which the compressor cylinder is closed, and proposes a measurement method of instantaneous mass flow of the refrigerator compressor. The comparison of the experimental pressure variation in the p–V diagram and the theoretical adiabatic process implied that the expansion and compression process of the refrigerator compressor approximated the adiabatic process. Based on the approximations and the experimental

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Protsenko, Serhii, Mykola Kizyeyev, and Olha Novytska. "Choice of the efficient flow diagram of biological wastewater treatment at municipal wastewater treatment plants." Environmental Problems 6, no. 4 (2021): 244–50. http://dx.doi.org/10.23939/ep2021.04.244.

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The possibility of increasing the efficiency of municipal wastewater treatment plant (WWTP) operation by changing the flow diagram of biological wastewater treatment in aeration tanks at minimum expenses for their reconstruction is shown in the paper on the example of one of the regional centres of Ukraine. The technology of nitri-denitrification of wastewater according to the flow diagram of the two-stage modified Ludzak-Ettinger process is offered for the considered conditions. The distribution of wastewater flows and internal nitrate recycling between the individual stages of this flow diag

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Adi, Suroto, and Desi Maya Kristin. "Strukturisasi Entity Relationship Diagram dan Data Flow Diagram Berbasis Business Event-Driven." ComTech: Computer, Mathematics and Engineering Applications 5, no. 1 (2014): 26. http://dx.doi.org/10.21512/comtech.v5i1.2577.

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Entity relationship diagram (ERD) and data flow diagram (DFD) modeling are necessary parts in analysis and design of structured information systems in business. Definition of entities in the ERD, the process, and datastore in the DFD have well described in a lot of literatures. However, practically it is not easy to explain how to design ERD and DFD models so that the students well understand the modeling steps, especially in business applications. This study discussed step-by-step systematic approach to ERD and DFD modeling using "business event-driven" approach that is represented by the REA

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ШІЛІНГ, АННА, та АНАСТАСІЯ ПАСЬКО. "МОДЕЛЮВАННЯ КОМУНІКАЦІЙНИХ ПРОЦЕСІВ ВЕБ-САЙТУ ДЛЯ HR-КОНСАЛТИНГУ". Herald of Khmelnytskyi National University. Technical sciences 339, № 4 (2024): 23–27. https://doi.org/10.31891/2307-5732-2024-339-4-4.

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В роботі запропоновано моделювання комунікаційних процесів веб-сайту для HR-консалтингу. Запропоновано інформаційну модель комунікаційного циклу між користувачами сайту, яка представлена за допомогою ER-діаграми, та функціональну модель замовлення послуги на сайті для HR-консалтингу за допомогою DFD діаграми. Результати дослідження використовуються і можуть бути використані для розробки та ефективної роботи відповідного веб-сайту. For both business and personal development, it is important to define the specifics of recruitment. This process involves users who need information about various pr

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Górski, Tomasz, and Grzegorz Ziemski. "UML activity diagram transformation into BPEL integration flow." Bulletin of the Military University of Technology 67, no. 3 (2018): 15–45. http://dx.doi.org/10.5604/01.3001.0012.6587.

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The growing interest of companies in integration and interoperability between information systems has caused increase in significance of Service-Oriented Architecture which provides tools for Enterprise Application Integration. In that architecture, Enterprise Service Bus provides technical possibilities of communication between IT systems. A key element in the communication are integration flows. Objective: The aim of this article is to present a new transformation Integration2BPEL, which automates the development of executable integration flow expressed in the Web Services Business Process E

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Yanuaristi, Herdifitrianne Saintissa, Syauqi Maulana Idhar, and Muhammad Nurhadi Rahman. "Effect of Vitamin D Supplementation in Women with Pelvic Floor Dysfunction: A Systematic Review." Indonesian Journal of Obstetrics & Gynecology Science 7, no. 2 (2024): 137. http://dx.doi.org/10.24198/obgynia.v7i2.641.

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Objective: This review systematically analyzes and summarizes existing studies on the association between vitamin D supplementation and symptoms of Pelvic Floor Dysfunction (PFD) in women. Methods: We conducted a comprehensive literature search based on the Preferred Reporting Items for Systematic Review (PRISMA) Statements’ flow diagram for systematic review. Two independent reviewers searched five online databases using keywords to identify relevant studies from 2018-2023. Excluded were articles with populations other than women, case reports or case series, review papers, and studies that d

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Lukanin, P. V., V. G. Kazakov, and L. O. Zverev. "Concept of PPI energy technology complex upgrading." Power engineering: research, equipment, technology 24, no. 4 (2022): 178–91. http://dx.doi.org/10.30724/1998-9903-2022-24-4-178-191.

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THE PURPOSE. Development and implementation of a set of theoretical and practical recommendations for creating scientifically founded heat flow diagrams for pulp and paper processes, intensifying heat exchanging processes under the economical use of energy resources. METHODS. The method of thermodynamic analysis on the basis of exergy increments in the process of interaction of heat flows is proposed, it allows evaluating the energy efficiency of both individual PPI units and the entire process flow; mathematical relationship between exergy efficiency of process elements and that of a complex

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Vakhromov, N. N., E. V. Dutlov, M. A. Bubnov, et al. "Synthesis of Cross-Linked Polyacrylamide by Radiation-Induced Inverse-Emulsion Polymerization." Oil and Gas Technologies 144, no. 1 (2023): 3–8. http://dx.doi.org/10.32935/1815-2600-2023-144-1-3-8.

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Relevance to increase jet fuel production in the Russian Federation has been shown. Methods of jet fuel treatment from mercaptans have been analyzed, disadvantages of these methods have been reviewed. Implementation and numerous modernizations of hydrodemercaptanization process diagram at Slavneft-YANOS PJSC are described. During the 20 years of operation, the process itself and the process flow diagram have been brought to perfection, all the “pitfalls” of the process have been revealed, ways to eliminate them have been found. By virtue of the use of the optimal diagram of the hydrodemercapta

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Zhang, Nan, Xiaoguang Yang, and Wangjing Ma. "Empirical Approximation for the Stochastic Fundamental Diagram of Traffic Flow on Signalized Intersection." Journal of Advanced Transportation 2018 (October 23, 2018): 1–17. http://dx.doi.org/10.1155/2018/4603614.

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The wide scattering nature of the fundamental diagram (FD) with observed flow-density data may be associated with the dynamical traffic flow process, especially on signalized intersection. To describe the uncertainty of FD, in this work we established stochastic fundamental diagram (SFD) which is defined by the distributions of shockwave speed. Our approach is based on a two-level stochastic process of the traffic flow system in terms of the dynamics of traffic density and state mode associated with signal phases which is named switching linear dynamical systems (SLDS). Then, variational Bayes

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Kusumah, Fitrah Satrya Fajar, M. Islam Al-Fatih Sitanggang, and M. Givi Elgivia. "Model Website Galeri Maket Lanmark Dunia 3 Dimensi Menggunakan Collada View." KREA-TIF 5, no. 2 (2017): 97. http://dx.doi.org/10.32832/kreatif.v5i2.2204.

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<h1 align="center"><strong>Abstrak</strong></h1><p>Website galeri landmark dunia dapat disajikan secara menyeluruh dengan menerapkan penyajian objek 3 dimensi. Pemikiran ini didasari ulasan penelitian teknologi tampilan 3 dimensi pada website dengan menerapkan teknologi Collada sebagai teknologi penampil objek 3 dimensi yang diharapkan dapat memenuhi kepuasan dan ketertarikan pengunjung dalam pemantauan objek website galeri landmark dunia. Metode yang telah digunakan meliputi analisis kebutuhan fungsional, proses bisnis sistem yang diajukan, perancangan-perancanga

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Tundo, Tundo, and Andi Saidah. "PELATIHAN PENGGUNAAN E-DRAW MAX UNTUK MEMBUAT DESAIN SISTEM." KAMI MENGABDI 3, no. 1 (2023): 17–23. http://dx.doi.org/10.52447/km.v3i1.6801.

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Edraw Max is a 2D business technical diagram software that helps create flowcharts, organization charts, mind maps, network diagrams, floor plans, workflow diagrams, business charts and Engineering diagrams, flowcharts, graphs and mappings, besides E- Draw Max is also a vector-based diagramming software, which is usually used to make it easier to make a design. One of them is the design of a production process system in a factory that can use this application. In this training, the E-Draw Max tools will focus on making Data Flow Diagrams (DFD), which are useful for describing the flow of the c

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Jiang, Zhi-Qiang, Wei-Xing Zhou, Bing Xu, and Wei-Kang Yuan. "Process flow diagram of an ammonia plant as a complex network." AIChE Journal 53, no. 2 (2007): 423–28. http://dx.doi.org/10.1002/aic.11071.

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Kassem, Nazih, James Hockey, Camilo Lopez, Laurent Lardon, Largus T. Angenent, and Jefferson W. Tester. "Integrating anaerobic digestion, hydrothermal liquefaction, and biomethanation within a power-to-gas framework for dairy waste management and grid decarbonization: a techno-economic assessment." Sustainable Energy & Fuels 4, no. 9 (2020): 4644–61. http://dx.doi.org/10.1039/d0se00608d.

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Zhang, Jian Qiang, Dan Ya Chen, He Huang, and Yun Lu. "Temperature and Humidity Detection System Based on Power Line Communication." Applied Mechanics and Materials 236-237 (November 2012): 242–46. http://dx.doi.org/10.4028/www.scientific.net/amm.236-237.242.

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Introduction of a intelligence control system of remote temperature & moisture adjustment based on single-chip computer. It explains hardware flow diagram, module structure and system software process flow diagram based on principle of power line carrier transmission and humiture control. With STC12C5404ADsingle chip computer and DHT21 as main control chip and humiture collection chip, the system hard ware is characterized by efficient and strong capacity of resisting disturbance compare to traditional humiture checking system.

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Jurnal, Redaksi Tim. "OPTIMASI DIAGRAM LAYANAN PEMBELIAN DALAM MENDUKUNG MANAJEMEN HUBUNGAN PELANGGAN." Kilat 6, no. 2 (2018): 88–94. http://dx.doi.org/10.33322/kilat.v6i2.128.

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The research purpose is implementing the information communication technology (ICT) as a tool to describe purchase service process to make easy the information communication technology usage and also supporting customer relationship management (CRM). The research is also describing how to improve the advantage of efficiency, effectives, performance as well as company productivity improvement to obtained supporting customer relationship management (CRM). This research uses descriptive analytical by presenting a summary of interviews, using observation, and discuss with expert respondent using f

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