PDF Publication Title:
Text from PDF Page: 009
Figure 4.12 Refrigerant discharge temperatures for corresponding maximum supply air temperature with real compressor..............................................................................................................................................................................32 Figure 4.13 Supplemental heating options................................................................................................................................33 Figure 4.14 Comparison of fixed supply air temperature and variable supply air temperature supplementary heating configurations...........................................................................................................................................................34 Figure 4.15 Controlling air-side capacity in cooling mode by adjusting air flow rate over evaporator coil .................35 Figure 4.16 Temperature profile in gas cooler .........................................................................................................................35 Figure 4.17 Effect of finite area gas cooler on heating cycle efficiency (real compressor, evaporating temp: 2.3 C) ..............................................................................................................................................................................................37 Figure 4.18 Effect of finite area gas cooler on heating cycle efficiency (real compressor, evaporating temp: 2.3 C) ..............................................................................................................................................................................................37 Figure 4.19 Conceptual diagram of indoor coil for reversible air conditioning and heat pump operation (side view). Slats at either end could rotate to increase the area for airflow by a factor of the number of passes, maintaining the air side heat transfer coefficient for large differences in flow rate...................................................38 Figure 4.20 Effect of airflow rate on heating cycle and system efficiency for 8.3oC outdoor heating condition, 40o C supply air temperature .................................................................................................................................................39 Figure 4.21 Effect of heat exchanger area on system heating COP, 8.3oC outdoor heating condition, 40oC s upply air temperature ...........................................................................................................................................................40 Figure 4.22 Effect of airflow rate on cooling cycle and system efficiency for 45oC outdoor cooling condition, 12o C evaporating temperature .............................................................................................................................................40 Figure 4.23 Effect of heat exchanger area on system cooling COP, 45oC outdoor cooling condition, 12oC evaporating temperature .......................................................................................................................................................41 Figure5.1 Temperaturebindata.................................................................................................................................................43 Figure 5.2 Capacity normalization as function of heating capacity and outdoor temperature .........................................44 Figure 5.3 Capacity load curve for sample system, 40oC supply air in heating..................................................................45 Figure 5.4 Comparison of overall annual efficiency as function of heating load requirement for 40oC supply air ..............................................................................................................................................................................................46 Figure 5.5 Capacity load curve for sample system, 60oC supply air in heating..................................................................46 Figure 5.6 Comparison of overall annual efficiency as function of heating load requirement for 60oC supply air ..............................................................................................................................................................................................47 Figure A.1 R410A facility layout showing location of instrumentation..............................................................................50 Figure A.2 Diagram and specifications for the R410A A/C and H/P evaporator coil. This schematic shows the a side view of the evaporator as it is situated in the duct test section B.......................................................................51 Figure A.3 Diagram and specifications of R410A A/C & H/P outdoor coil and compressor..........................................51 Figure A.4 Schematic of RAC1 CO2 system ...........................................................................................................................53 Figure A.5 Cross section of specially designed high pressure R744 heat exchanger header. ..........................................54 Figure A.6 Cross section of the microchannel tube used in the RAC1 R744 heat exchangers........................................54 Figure A.7 R744 indoor single pass microchannel heat exchanger slab shown on the top with the arrow showing the direction of refrigerant flow. The bottom schematic shows three single slab evaporators as they are placed in the duct test section...............................................................................................................................55 ixPDF Image | Comparison of R744 and R410A
PDF Search Title:
Comparison of R744 and R410AOriginal File Name Searched:
CR039.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 (Standard Web Page)