RFC 1700 Assigned Numbers October 1994 a multi-octet quantity is transmitted the most significant octet is transmitted first. Ben Ferrar Carpenter Additive, USA. In Equation (10), assume that the water capacity is at the best efficiency point. The concentration of carbon dioxide (CO 2) in the atmosphere has increased from approximately 277 parts per million (ppm) in 1750 (Joos and Spahni, 2008), the beginning of the Industrial Era, to 407.38±0.1 ppm in 2018 (Dlugokencky and Tans, 2019; Fig. For this example, consider a discharge line that is 50 ft schedule 40, 4-in. Build relationships with AM decision-makers from industry, academia, and regulatory bodies, Promote their products/services to our wide network of partners and organizations, Expand brand outreach through pre-conference advertising and promotional materials. Based on the overwhelming success of previous versions of these events, ICAM 2021 offers an unprecedented opportunity for sponsors to reach a broad range of AM professionals, leaders, and influencers from industry, academia, and regulatory bodies. diameter, with two gate valves, 12 elbows, 1 expander (2–4 in. Figure 3. A. Liu is an Alumni Distinguished Professor and the Frank C. Vilbrandt Endowed Professor of Chemical Engineering at Virginia Polytechnic Institute and State University (Virginia Tech; Blacksburg, VA 24061; Phone: 540-231-7800; Email: [email protected]). The ASTM International Conference on Additive Manufacturing (ASTM ICAM 2021), hosted by the ASTM International Additive Manufactured Center of Excellence, will be held November 1-5, 2021. The suction tank elevation (S) is 12 ft, and the discharge tank elevation (D) is 150 ft. Pressure on the suction side is atmospheric pressure (1 atm = 14.696 psi) and the pressure on the discharge side is 1.1 atm. Interested students must prepare and submit an abstract no later than March 15. Authors are invited to submit their abstract, no more than 300 words, related to the conference topics below outlining the scope of their presentation. He has worked as a co-op at the DuPont Spruance Plant in Nomex Process Control and in Polyaramid Research and Development. In recognition of continuous and outstanding contributions to research, education, and standards development in the area of Additive Manufacturing. Raza, Asif; Sizing, Specifying and Selecting Centrifugal Pumps, Chem. Sheet 3 is included for finding the friction losses in the pumping system. As additive manufacturing (AM) technologies are adopted by various industries, establishing feedstock-process-structure-property-performance relationships becomes essential for qualification and certification of parts in safety critical applications. The TDH represents the difference between Equations (5) and (6), in which users actually add together the velocity head and the frictional head loss for both the suction and discharge sides of the pump. The implementation of AM training and recruitment programs such as the Student Presentation Competition and Young Professional in Additive Manufacturing awards, will also be addressed. This is ASTM International’s sixth annual flagship event related to standardization, qualification and certification with an emphasis on industry specific requirements addressing the entire AM process chain. A number of recent articles provide useful guidelines for sizing and selecting pumps, but these articles focus on certain specific aspects of proper pump sizing, while leaving out others [1–4]. Head and capacity are not noticeably changed by viscosity below 4.3 cP at pumping temperature. Six steps to pump sizing. To determine the electricity cost for operating the pump, use Equations (13), (14) and (15). 下载该文档 文档格式：txt 更新时间：2011-10-08 下载次数：1 点击次数：22 文档格式：txt 更新时间：2011-10-08 下载次数：1 点击次数：22 Now that two pumps are feasible from the perspective of TDH requirements, you can compare the economics. For more information about Griswold Pumps, please visit www.griswoldpump.com. Brake horsepower (BHP) is the actual horsepower delivered to the pump shaft. NPSH varies with impeller speed and flowrate. Importance of topic to conference attendees, Inclusion of an end-user as either lead or co-presenter, Knowledge and experience of the speakers(s). Ben Dutton The MTC, UK. In most pump curves, engineers could not read the BHP accurately; so instead, we recommend calculating the BHP manually using the pump efficiency according to Equation (12) below. | Privacy Policy | Diversity Inclusion & Equity, The Digital Difference from the Leader in Thermal Mass Flow Measurement, In a report 1 issued by the American Council for…, By exploring strategies for process integration, such as waste-heat recovery…, New offerings, including software products, consulting services, research insights and…, Conventional adhesives, such as epoxy, are designed to cure using…, Researchers from the National University of Singapore (www.nus.edu.sg), led by…, Ammonia catalyst Clariant Catalyst (Munich, Germany; www.clariant.com) and Casale SA…, Today, synthetic routes to about 10% of the top 50…, Reverse-osmosis (RO) desalination membranes use a polyamide selective layer formed…, Pixelligent Technologies Inc. (Baltimore, Md. Viscosity correction is often overlooked in pump sizing by new engineers. The red dashed line corresponds to Example 2 on p. 40. As defined here, the specific speed represents the pump rotating speed (in rpm) at which a theoretical pump that is geometrically similar to the actual pump would run at its best efficiency to deliver a proportional flowrate. We would also like to thank Griswold Pumps for allowing us to use their pump curves and pump information to create useful real-world examples. 1st place: Pooriyah Dastranjy Nezhadfar, Auburn University “Improved High Cycle Fatigue Performance of Additively Manufactured Stainless Steel via In-process Refined Micro/defect Structure”, 2nd place: Tatiana Mishurova, Federal Institute for Materials Research and Testing, “Influence of Residual Stress and Microstructure on Mechanical Performance of LPBF TI-6AL-4V”, 3rd place: Lukas Haferkamp, Inspire AG/ETH Zurich, “The Influence of the Particle Size Distribution of AlSi12 on Part Density in Laser Powder Bed Fusion”, “Scan-by-Scan Part-Scale Thermal Modelling for Defect Prediction in Metal Additive Manufacturing”, 1st Place: Jonathan Pegues, Auburn University, “Additive Manufacturing of Fatigue Resistant Materials: Avoiding the Early Life Crack Initiation”, 1st Place: Yu-Chung Chang, Washington State University, “A 3D Printable Coffee/PLA Polymer Composite with Enhanced Impact Toughness”, “Scaffolds with Sheet-based Architectures Produced by SLM for Orthopedic Applications”, 3rd Place: Zoe’ Jardon, Vrije Universiteit Brussel, “Physical Understanding of Propagating Waves through eSHM-system for Crack Localization”, 3rd Place: Dalia Mahmoud, McCaster University, “Effect of Microstructure and Internal Defects on the Mechanical Properties of Gyroid Lattice Structures for Biomedical Implants”.

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