Virtual Lobby

Welcome to the virtual lobby for IIR Conference on Compressors and Refrigerants!

Here you can choose from one of the sessions below and join the presenters at the planned time slots. You will also be able to access recorded presentations after the conference.

All times are given in Central European Time.

9.9.2024

Plenary session

auditorium, S2, chaired by Peter Tomlein, Didier Coulomb, Armin Hafner, 15:00 – 18:00

Open session room

Submissions
Challenges of the COP 28 and the National Cooling Action Plans
Presented by Didier Coulomb, Director
Why clean cooling is the preferred solution in Norway
Presented by Armin Hafner, Prof. Dr.-Ing.
The Feasibility of a Global Net Zero for RACHP in 2050; the Impact of Main Parameters
Presented by Lambert Kuijpers, Dr.
What will the future be for the refrigeration and heat pump technology?
Presented by Alexander Cohr Pachai
Decarbonizing mid-size industrial application with large scroll compressors: vision and challenges
Presented by Ivan Rangelov
Compressors and refrigerants in electronic logbook "Leaklog"
Presented by Michal Tomlein, Ing.
Professor Aurel Stodola, Polymath and big personality. Commemorative Medals of Aurel Stodola will be awarded
Presented by Ľubomír Šoóš, Prof. Dr. h.c.

10.9.2024

Reciprocating compressors I

auditorium S2, 1.floor, chaired Steffen Feja, Marek Zgliczynski, 09:00 – 10:30

Open session room

Submissions
ARE THE PRODUCT SAFETY STANDARS READY TO ALLOW IMPLEMENTATION OF UPDATED F-GAS REGULATIONS FOR COMMERCIAL REFRIGERATION?
Presented by Marek Zgliczynski
Hermetic compressor valve robust design assessment
Presented by Mattias da Silva Castro
Quantifying Inefficiencies in Variable-Speed Reciprocating Compressors: An Exergy Approach
Presented by Willian T. F. D. Silva, M.Sc.
A Modelica-Based Framework for Thermal Simulation and Performance Analysis of Hermetic Reciprocating Compressors
Presented by Vitor M. Braga, Ph.D.
Characterizing Sources of Volumetric Inefficiency in Reciprocating Compressors
Presented by Willian T. F. D. Silva, M.Sc.

Heat pumps I

auditorium S3, 1. floor, chaired by Alex Cohr Pachai, Claudia Fabiane, 09:00 – 10:30

Open session room

Submissions
R290 - 1,8 MW CHILLER AND HEAT PUMP SYSTEM
Presented by Armin Hafner, Prof. Dr.-Ing.
THE POTENTIAL OF MULTI-PHASE ROTARY PRESSURE EXCHANGER INTEGRATION FOR LARGE-SCALE TRANSCRITICAL CO2 HEAT PUMPS
Presented by Caio Coutto, MSc
Design and control strategy of an innovative CO2 residential monoblock heat pump for domestic hot water
Presented by Claudia FIABANE
High Temperature Heat pump applications for industrial processes
Presented by Ivan Rangelov
State of the art of miniature compressors
Presented by Mihael Blatnik, MSc
Analysis of methods to improve the energy efficiency for sustainable marine solutions
Presented by Mykhailo Khmelniuk, Doctor of Technical Sciences

Reciprocating compressors II

auditorium S2, 1. floor, chaired by Marek Zgliczynski, Steffen Feja, 11:00 – 12:30

Open session room

Submissions
Cold thermal energy storage for supermarket applications: Numerical investigation
Presented by Armin Hafner
Heat powered adsorption compressors for refrigeration and air-conditioning applications.
Presented by Sujod Iraqi, MSc
Thermocouple influence on Heat Transfer Coefficient measurement
Presented by Patrik Rapta, Ing.
Isothermal gas compression and expansion processes by controlling actuators
Presented by Török Arpad, researcher
DOMESTIC REFRIGERATORS SINGLE-PHASE ASYNCHRONOUS MOTORS DYNAMIC CHARACTERISTICS SIMULATION
Presented by Yurii Baidak, DSc

Compressors and technologies

auditorium S3, 1. floor, chaired by Dariusz Butrymowicz, Alex Cohr Pachai, 11:00 – 12:30

Open session room

Submissions
Analysis of various refrigerants in lower condensing temperatures in a hybrid adsorption-compression refrigeration system
Presented by Marcin Borcuch, PhD
Conceptual design of a transcritical heat pump with CO2 refrigerant for wastewater heat recovery application research
Presented by Jozef Jandačka, prof. Ing. PhD.
Prototype of eutectic refrigeration system working with R1270 refrigerant
Presented by Lukas Prakopavičius, MEng
How changes in lubricant can address challenges associated with hydrocarbon refrigerant High Temperature Heat Pumps (HTHP)
Presented by Manuel Muñoz Alonso
Upcoming natural refrigerant-driven heating and cooling systems in India
Presented by Sarun Kumar Kochunni, PhD

Meeting of commissions B1, B2, E1, E2, flammability of refrigerants - show

an elevated auditorium in the main lobby, chaired by Peter Tomlein, Didier Coulomb, Richard Kuracina, 12:45 – 13:15

Open session room

Submissions
IIR activities, commissions B1 and 2, E1 and E2
Presented by Didier Coulomb, Director

Special compressors and components I

auditorium S3, 1. floor, chaired by Dariusz Butrymowicz, Oliver Javerschek, 13:30 – 14:45

Open session room

Submissions
R744 HEAT PUMPS WITH EJECTORS: PROJECTS, OBJECTIVES AND RESULTS
Presented by Oliver Javerschek
Theoretical Analysis on the Thermal Performance of R600a, R290 and Their Mixtures in a Retrofit R134a Vapor Compression Refrigeration System
Presented by ZHONGJIE HUAN, PhD: Thermal Engineering
Intermarché with an R744 Ejector booster system operating 24/7/365
Presented by Carlos Filipe Ferreira
Continuous Inline Measurement for Oil Concentration Ratio in Refrigerant
Presented by Duc Tien Le, Master
INVESTIGATION OF R744 AC & HEAT PUMP SYSTEMS FOR ELECTRIC VEHICLES WITH EJECTORS
Presented by Reza Niroomand, Ph.D.

Rotary, scroll, screw, ... compressors I

auditorium S2, 1. floor, chaired by Claudia Fabiane, Armin Hafner, 13:30 – 15:00

Open session room

Submissions
Compressor durability evaluation with the R-1132(E) based refrigerant R-474A for high-efficient and high-performant BEV heat pump systems
Presented by Christian Macrì
Design of a CO2 plate freezer test facility with -50°C evaporation temperature
Presented by Shuai REN, Doctor
Experimental assessment of oil free liquid injection twin screw compressor for high temperature industrial applications
Presented by Shuai Ren
IMPACT OF REFRIGERANT TYPE ON LEAKAGE RATE AND RESULTING FLAMMABILITY RISK
Presented by Jafar Esmaeelian
A NOVEL MODELLING APPROACH FOR THERMODYNAMIC DATA OF REFRIGERANT-OIL MIXTURES
Presented by Steffen Feja, Dr. rer. nat.

Special compressors and components II

auditorium S3, 1. floor, chaired by Dariusz Butrymowicz, Michal Masaryk, 15:15 – 16:15

Open session room

Submissions
Active shading system as a reduction of building cooling requirements
Presented by Michal Masaryk, prof., Ing., PhD.
EXPERIMENTAL INVESTIGATION OF A TWO-PHASE EJECTOR IN APPLICATION TO PROPANE SYSTEMS
Presented by Dariusz Butrymowicz
EXPERIMENTAL INVESTIGATIONS OF HYBRID VAPOUR COMPRESSION-EJECTION REFRIGERATION SYSTEM
Presented by Dariusz Butrymowicz, Prof.
Small water ejector chiller with on-off operated pump
Presented by Peter Mlynár, doc., Ing., PhD.
APPLICATION OF LOW-GWP REFRIGERANTS R1233zdE AND R1234zeE FOR LARGE SCALE EJECTOR REFRIGERATION SYSTEMS OPERATING UNDER REAL INDUSTRIAL CONDITIONS
Presented by Dariusz Butrymowicz

Rotary, scroll, screw, ... compressors II

auditorium S2, 1. floor, chaired by Ivan Rangelov, Claudia Fabiane, 15:15 – 16:15

Open session room

11.9.2024

Compressors and refrigerants

auditorium S2, 1. floor, chaired by Armin Hafner, Lambert Kuijpers, 09:00 – 10:30

Open session room

Submissions
The future of technology research and development
Presented by Alexander Cohr Pachai
The 2024 F-gas Regulation and the challenges for the RACHP sector: presentation of the key provisions and the future steps.
Presented by Vincent de Badereau, Engineering Master in Energy & Environment
Eectronic databases in accordance with the regulations regarding F-gases in Poland
Presented by Agnieszka Tomaszewska, dr inż.
Business Development Manager East Europe
Presented by Jaroslaw Stalewski, Mr
Low GWP refrigerant for stationary applications
Presented by Álvaro de León
R-449A, R-744 and R-454C in Commercial Refrigeration: Impact on Efficiency and System Complexity
Presented by Dominic Düing

End of the conference and nomination of selected contributions, chaired by Armin Hafner, Didier Coulomb, Peter Tomlein

auditorium S2, 1. floor, 10:30 – 11:00

Open session room