PDF Publication Title:
Text from PDF Page: 013
ZO & ZOD CopelandTM Scroll compressor range for CO2- subcritical refrigeration ZO Copeland Scroll Compressors have been designed for use in R744 (CO2) low temperature refrigeration systems. These compressors are suitable for usage in CO2-subcritical cascade and booster systems. Increasing environmental concerns about potential direct emissions from HFC-based refrigeration systems into the atmosphere have led to the revival of R744 in parts of the European refrigeration market. Regionally, this trend is reinforced by legislation and taxation schemes which favor the usage of refrigerant R744. In comparison with HFC refrigerants, the specific properties of R744 require changes in the design of the refrigeration system. The ZO range of Copeland Scroll compressors has been particularly designed to exploit the characteristics of the R744 refrigeration system. Efficiency, reliability and liquid handling advantages of the Copeland scroll technology equally apply. The optimized design of ZO compressors effectively address the challenges of R744 systems i.e., high pressure levels, higher mass flow for a given displacement while securing proper lubrication. The range consists of 6 models including 2 digital models for 10 to 100% continuous cooling capacity modulation. ZO/ZOD compressor range ZO compressor for low temperature refrigeration Digital ZOD ZO Cooling capacity (kW) 0 2 4 6 8 10 12 14 16 18 20 22 24 Conditions EN12900 R744: Evaporating -35°C, Condensing -5°C , Suction Superheat 10K, Subcooling 0K Features and benefits • Optimized for high efficiency in CO2 subcritical cascade and booster systems • 52 bar standstill pressure on discharge side for ZO Scroll • High condensing temperature limit allowing for optimized overall system design • Compact design minimizing required machine room space • Half the weight of equivalent semi-hermetic compressors • Optional Sound Shell allowing 10 dBA sound attenuation • High bearing reliability and lubrication of all critical parts under all conditions including liquid slugging • Availability of a digital model offering simple, stepless 10 to 100% capacity modulation Operating envelope R744 10 5 0 -5 -10 -15 -20 -25 -55 -50 0°C Suction gas return -30 -25 -20 20K superheat -45 -40 -35 Evaporating temperature °C 13 Condensing temperature °CPDF Image | CO2 Product Guide 2021
PDF Search Title:
CO2 Product Guide 2021Original File Name Searched:
2021-co2-refrigeration-4217772.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 |