Conference Agenda
Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).
Please note that all times are shown in the time zone of the conference. The current conference time is: 2nd June 2024, 09:14:56am BST
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Session Overview | |
| Location: BG03 |
| Date: Monday, 11/Sept/2023 | |
| 10:40am - 11:40am | 1C Reciprocating Compressors Location: BG03 Session Chair: Prof. Andreas Bruemmer Co-Chair: Aleksander Krupa |
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Feasibility Study on Two Novel Lubricants for Carbon Dioxide Reciprocating Compressor 1Herrick Laboratories, School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA; 2Evonik Oil Additives Inc., Darmstadt, Germany In recent years, increasing research efforts have been made on modeling and testing positive displacement compressors with low global warming potential (GWP) working fluids and their systems. The ongoing HFC phase-down is forcing the HVAC&R industry to investigate low-GWP refrigerant alternatives as well as natural refrigerants (e.g., water, hydrocarbons, CO2). The transition to low-GWP and natural refrigerants requires research efforts on cycle configurations and components including compressors. More specifically, most of the existing positive displacement compressors employed in HVAC&R systems rely on lubricant oils to ensure correct operation and performance. To better understand the potential research directions in lubricant oils, a reciprocating compressor with CO2 as refrigerant was selected as the case study to investigate alternative lubricant oil formulations. In this study, a baseline POE-68 and two alternative lubricant oils were evaluated on a transcritical CO2 reciprocating compressor with respect to performance enhancement and potential issues and challenges. A hot gas bypass test stand was used to carry out the experimental studies. A total of 66 steady-state data points were collected, and control tests were performed after each alternative oil formulation to ensure correct operation of the compressor. The alternative lubricant oils showcased comparable performance data to the baseline lubricant oil under a wide range of operating conditions without sign of decomposition. Numerical analysis of the dynamic two-phase flow behavior in the ionic compressor with a novel H-shaped piston Xi’an Jiaotong University, People's Republic of China With the development of the hydrogen energy industry, it is crucial for hydrogen refueling stations that compressors can work efficiently and flexibly with a longer life span. Adopting ionic liquid as a liquid piston to compress hydrogen is a feasible method. The high stroke frequency of ionic compressor prevents the liquid piston from maintaining a stable shape, leading to the generation of the additional clearance volume and hydrogen sealing failure. In this article, a novel H-shaped piston was proposed and a 3d numerical model of an ionic compressor cylinder with it was established. The dynamic simulation of the two-phase fluid behavior in the cylinder during three cycles was performed using the volume of fluid method and the dynamic mesh technique. The effect of this piston on the variation of the two-phase interface and the clearance volume of the compressor has been discussed for optimizing the design of the ionic compressor. Results show that: the clearance volume of the cylinder with a H-shaped piston was smaller than that of the cylinder with a normal piston in all three compression cycles, which indicated that the higher volumetric efficiency could be obtained with the H-shaped piston. In addition, the application of the H-shaped piston allowed sufficient ionic fluid to be retained in critical sealing locations of the cylinder to keep hydrogen sealing and piston lubrication well. Parametric analysis and investigations in crankshaft design for the reciprocating compressors 1Arcelik Central R&D, Turkey; 2Arcelik Compressor Plant, Turkey; 3Koc University One of the most crucial parts of a reciprocating compressor is the crankshaft, which conveys the motion of the rotor to the piston via the connecting rod. The effect of the gas, friction and inertial forces on the journal bearings not only creates the vibration but also initiates the mechanical losses. Since the design parameters of the crankshaft play a vital role in the losses, in this study, the bearing and lubrication model of a reciprocating compressor was developed in an analysis software to investigate the effect of design parameters. The forces and the torques emerging on the compressor were calculated and in-directly validated with mechanical loss experimental studies. Afterward, a sensitivity analysis is made by sweeping varying design parameters, and vital parameters are identified for the crankshaft to reduce the bearing loads and mechanical losses. Finally, a crankshaft design that demonstrates lower bearing forces than the investigated geometry is proposed with the genetic algorithm. Keywords: Crankshaft optimization, genetic algorithm, bearing forces |
| 1:30pm - 2:30pm | 2C Reciprocating Compressors Location: BG03 Session Chair: Dr. Andy Pearson Co-Chair: Aleksander Krupa Presentations of research papers |
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Development of reduced order model for performance prediction of reciprocating compressor 1Graduate School of Mechanical Engineering, Pusan National University, Busan 46241, Republic of Korea; 2Department of Mechanical Engineering, Pusan National University, Busan 46241, Republic of Korea; 3LG Electronics Kitchen Appliance Lab., 391-2, Gaeumjeong-dong, Changwon, Gyeongnam, Republic of Korea; 4H&A R&D Center, LG Electronics Inc., 327-23, Kasan-dong, Geumchon-gu, Seoul 153-082, Republic of Korea Numerical Investigation of the Effect of Cylinder Head Torque on Gas Leakage in Hermetic Compressors Arçelik AŞ, Turkey Numerical Analysis of a Vapor-Injected Reciprocating Compressor for a Multi-Evaporator Domestic Refrigerator/Freezer Application Ray W. Herrick Laboratories, Purdue University Mechanical Engineering West Lafayette, IN, USA |
| 4:15pm - 5:15pm | 3C Other Compressor Types Location: BG03 Session Chair: Prof. Christiane Thomas Co-Chair: Dr. Thibaud Plantegenet Presentations of research papers |
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CFD studies on ejectors configured with twisted circular profile lobed nozzle 1Department of Mechanical Engineering Indian Institute of Technology Madras, India; 2Department of Mechanical EngineeringIndian Institute of Technology Madras, India Development and Performance Evaluation of a Micro Air Blower 1The British University in Egypt, Egypt; 2Ain Shams University, Egypt; 3City University of London, UK Active Magnetic Bearings, Variable-Speed Centrifugal Air Compressors Suitable to Reduce Carbon Footprint, is it Really the Case? 1SKF,Magnetic Mechatronics Saint Marcel, France; 2TAMTURBO OYJ, TAMPERE, FI-33100, FINLAND |
| Date: Tuesday, 12/Sept/2023 | |
| 9:50am - 10:50am | 4C Reciprocating Compressors Location: BG03 Session Chair: Prof. Craig Bradshaw Co-Chair: Dr. Thibaud Plantegenet Presentations of research papers |
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INFLUENCE OF 3D PRINTED ELASTIC STRUCTURES ON THE PRESSURE PULSATIONS IN THE RECIPROCATING COMPRESSOR MANIFOLD Cracow University of Technology, Poland Experimental and Numerical Investigation of the Discharge Valve Limiter Geometric Features Change on Compressor Thermal Efficiency 1Arcelik A.S. Central R&D, Istanbul, Turkey; 2Yildiz Technical University, Istanbul, Turkey New Concept for Electrically Driven Air Compressors for Commercial Vehicles – General Layout and Indicator Measurements Bitzer Chair of Refrigeration, Cryogenics and Compressor Technology, Technische Universität Dresden, Germany |
| 1:30pm - 2:30pm | 5C Other Compressor Types Location: BG03 Session Chair: Dr. Thiago Dutra Co-Chair: Aleksander Krupa Presentations of research papers |
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Performance improvements of Scroll and Sliding Vane Expanders via a double intake port technology for ORC-based power units University of L'Aquila, Italy Numerical analysis of real fluid behavior effects on a sliding-vane compressor comprehensive model 1Ing. Enea Mattei SpA, Italy; 2Politecnico di Milano, Italy CFD Simulation of Advanced Vapor Compressor for Seawater Desalination plants Qatar Environment ad Energy Research Institute, HBKU, Qatar |
| 2:50pm - 4:10pm | 6C Hydrogen Compression Location: BG03 Session Chair: Prof. Ian M Arbon Co-Chair: Yang Lu |
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Effects of oil compressibility on the thermal performances of diaphragm compressors used in the hydrogen refuelling station with a mathematical method Xi'an Jiaotong University, China, People's Republic of Study of effects of hydraulic parameters on the motion of the free piston in ionic liquid compressors in hydrogen refuelling stations Xi'an Jiaotong University, China, People's Republic of Analysis and enhancement of heat transfer of the gas head cover of hydrogen diaphragm compressors 1Xi'an Jiaotong University, China, People's Republic of; 2State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University No. 28 Xianning West Road, Xi'an 710049, China, People's Republic of Hydrogen Compressors: a Few Technical Challenges CST - Compression Service Technology, Italy |
| Date: Wednesday, 13/Sept/2023 | |
| 9:50am - 11:30am | 7C Noise and Vibration Location: BG03 Session Chair: Prof. Stefan Elbel Co-Chair: Dr. Thibaud Plantegenet |
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IN-LINE SPHERE ARRAYS AS PRESSURE PULSATION AND PIPELINE VIBRATION DAMPERS IN RECIPROCATING COMPRESSOR MANIFOLD Cracow University of Technology, Poland Multi-physical modeling of noise and vibration due to refrigerant discharge in hermetic compressors Ray W. Herrick Laboratories, School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA Mitigation of Fluid-Induced Noise Generated by Discharge Flow in a Hermetic Rolling Piston Compressor Purdue University, United States of America Prediction of pressure pulsation damping efficiency with the use of shaped nozzles based on their geometrical parameters Cracow University of Technology, Poland Acoustic and Energy Efficiency Analysis of Alternative Geometries of Plastic Suction Muffler ARCELİK A.Ş., Turkey |
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