Efficiency improved HC compressors, lower charges and safety at GL 2012

For three days the research and industry community interested in advances in hydrocarbons (HCs) and other natural refrigerants are meeting in the Netherlands at the 10^th Gustav Lorentzen (GL) Conference. Hot topics are performance improvement of HC systems, safety and charge reduction potentials.

hydrocarbons21.com will keep you updated on the papers presented at the Gustav Lorentzen Conference 2012, taking place from 25-27 June 2012 in Delft, the Netherlands. The biennial conference is organised by the International Institute of Refrigeration (IIR), the Royal Dutch Association of Refrigeration and the Delft University of Technology. Some of the papers below will be summarised and a link to all papers on the IIR website will be provided over the coming days.

Session on HC compressors:

Scroll compressor assessment with R-290 and R-1270, Heiko Arnemann, Bachir Bella et al.
Development of a scroll compressor model for propane, Paul Byrne, Redouane Ghoubali and Jacques Miriel
Extension of the working map of scroll compressors for R407c heat pumps when they are working with propane, J Alonso, E Navarro, IO Martínez, J Gonzálvez
Energy efficiency of small refrigeration system powered with variable cooling capacity compressor - Case study, Libor Novak
Comparative experimental study of an open piston compressor for buses working with R1234yf, R134a and R290, J. Nohales, E. Navarro et al.
Noise and efficiency improvement of light commercial compressor using propane refrigerant, Jozef Sedliak

Read the first hydrocarbons21.com article summarising some of the presentations from this session: Experimental studies on HC performance in plug-in refrigeration & heat pumps (28 June 2012)

Session on HC drop in/systems:

Cuban experiences with hydrocarbon refrigerants Rafael Quintero, Reinaldo Guillén
Performance of integral hydrocarbon cabinets for supermarket applications, I Nyoman Suamir, Savvas A Tassou et al.
Analysis of refrigerating cycles working with isobutane under transient conditions, N. Ablanque, J. Rigola et al.
Performance improvement of sequential dual evaporator refrigeration cycle in domestic refrigerator-freezer charged with \ R-600a: prototype testing, Matej Visek, Cesare Maria Joppolo, Luca Molinaroli and Andrea Olivani
Theoretical comparative study case, hydrocarbons and HFC mixture alternatives retrofit, Gratiela - Maria Târlea et al.
Experimental analysis of a commercial refrigeration system operating with R22 and the hydrocarbon R1270, Enio P. Bandarra Filho et al.

Read the second hydrocarbons21.com article: Analysis of hydrocarbons in domestic and commercial refrigeration shows clear energy savings

HC safety / Low charge / Drop-in

Safety standards for hydrocarbon refrigerants Asbjørn Leth Vonsild
R290 leakage mass flow rate from a refrigerating system Daniel Colbourne and Zhi Xin Liu
Safety concept for hydrocarbon refrigerants in split air conditioner, Daniel Colbourne, Rolf Hühren and Asbjørn Vonsild
Experimentally validated microchanel heat exchanger Performance and charge predictions used to compare charge reduction potentials of some refrigerants, Yadira Padilla Fuentes and Pega Hrnjak
Developing low charge R290 room air conditioner by using smaller diameter copper tubes, Guoliang Ding, Tao Ren, et al.
Experimental investigation on R1270 as alternative refrigerant of R22 in residential air conditioners Tingxiang Jin, Changqing Tian, Zuyi Zheng

Read the third hydrocarbon21.com article: Design reducing refrigerant charge by 27% and safety standards at GL 2012