PDF Publication Title:
Text from PDF Page: 051
R1234ze(E) R1234yf R1270 R290 R152a R32 -70.00% -60.00% -50.00% -40.00% -30.00% -20.00% -10.00% 0.00% Figure 4.12. Relative differences (%) of TEWI compared to R410A (floor heating) 4.5.2. Sensitivity analysis In order to evaluate the influence of the characteristics of the system on the TEWI, a sensitivity analysis was performed on three of the parameters: leakage rate, lifetime, and recovery factor. Moreover, at the end of the section, the results will be shown while considering a different region of operation, and thus another CO2 emission factor. The outcome is here presented in the case of radiator heating. In fact, the behaviour of the floor heating results when modifying the parameters of the TEWI calculation is the same, and therefore does not provide any additional information. Leakage rate 8000.00 7000.00 6000.00 5000.00 4000.00 3000.00 2000.00 1000.00 0.00 Direct effect Indirect effect Leakage rate 1% Leakage rate 3% Leakage rate 4% Leakage rate 5% R410A R32 R152a R290 R1270 R1234yf R1234ze(E) Figure 4.13. Leakage rate sensitivity analysis results on TEWI The leakage rate, originally assumed at 2%, was varied between 1% to 5%, thus from a better to worse situation, and the results are shown in Figure 4.13. This parameter only affects the direct effect (2.1), -42- TEWI [kg CO2]PDF Image | Next generation of refrigerants for residential heat pump systems
PDF Search Title:
Next generation of refrigerants for residential heat pump systemsOriginal File Name Searched:
MartinaLonghini_ThesisReport.pdfDIY PDF Search: Google It | Yahoo | Bing
CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
Heat Pumps CO2 ORC Heat Pump System Platform More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |