Presentationsmaterial EFFSYS 2 dagen 2009-12-14Investigations of Heat Recovery in Different Refrigeration System Solutions in Supermarket Samer Sawalha and Yang Chen Department of Energy Technology Kungliga Tekniska Högskola Stockholm-Sweden
Presentationsmaterial EFFSYS 2 dagen 2009-12-14
Investigations of Heat Recovery in Different Refrigeration System Solutions in Supermarket Samer Sawalha and Yang Chen Department of Energy Technology Kungliga Tekniska Högskola Stockholm-Sweden
Project summary
Presentationsmaterial EFFSYS 2 dagen 2009-12-14
Analysis methods
Presentationsmaterial EFFSYS 2 dagen 2009-12-14
Detailed outline
Presentationsmaterial EFFSYS 2 dagen 2009-12-14
Parallel CO2 transcritical (TR1) Presentationsmaterial EFFSYS 2 dagen 2009-12-14
Field measurement (TR2)
Presentationsmaterial EFFSYS 2 dagen 2009-12-14
R404A/CO2 Cascade (CC)
NH3/CO2 Cascade
R404A conventional with SC
Total COP comparison
Presentationsmaterial EFFSYS 2 dagen 2009-12-14
Total COP comparison in HR mode Presentationsmaterial EFFSYS 2 dagen 2009-12-14
Medium and low temp. COP Presentationsmaterial EFFSYS 2 dagen 2009-12-14
Field measurement (TR2)
Presentationsmaterial EFFSYS 2 dagen 2009-12-14
Total COP comparison-No condenser loop Presentationsmaterial EFFSYS 2 dagen 2009-12-14
Ongoing and future tasks
Estimate the heating capacities in an average size supermarket Calculate the annual energy consumption of all the solutions combinations in different climates Conclude the best refrigeration-heat recovery combinations for different climates Experimental validation of CO2 systems in heat recovery mode in laboratory environment Presentationsmaterial EFFSYS 2 dagen 2009-12-14
Schematic of the CO2 test rig Presentationsmaterial EFFSYS 2 dagen 2009-12-14
Experimental main task
Overall system evaluation Heat exchangers evaluation Compressor losses and oil cooler capacity System control Presentationsmaterial EFFSYS 2 dagen 2009-12-14
Conclusions
Field measurements performed Simulation models for several systems built Test rig built and running CO2 systems have potential with: -floating condensing and recovering heat from de-superheating -connected to heat pump at the condenser loop Presentationsmaterial EFFSYS 2 dagen 2009-12-14
Comments