High efficiency CO2 transcritical DC condensing unit

50 %
50 %
Information about High efficiency CO2 transcritical DC condensing unit

Published on November 8, 2016

Author: CAREL_group

Source: slideshare.net

1. High efficiency CO2 transcritical DC condensing unit Giovanni Tonin BU Retail Solutions, Sales&Marketing Process

2. Condensing unit regulation EUROPE Ecodesign “Directive 2009/125/EC (Energy Related Product, ERP) ” Minimum COP (coefficient of performance) for units with rated capacity lower than 5 kW, minimum SEPR (seasonal energy performance ratio) for units with rated capacity between 5 and 50 kW. USA DOE “CFR 2015 Title 10 part 431” Limitation are applied to the entire system: condensing unit and refrigeration units. Requirements are different according to the type of refrigerated units. EUROPE “ F-GAS regulation No. 517/2014” Stationary refrigeration and air-conditioning equipment, HFCs with GWP≥2500 unacceptable from 2020 USA “EPA SNAP Rules” Remote condensing units New: HFC-227ea, R-404A, R-407B, R-421B, R-422A, R-422C, R-422D, R-428A, R-434A, R-507ª unacceptable from 2018 Japan “Act on Rational Use & Proper Management of Fluorocarbons” Condensing unit and refrigerating unit Target GWP < 1500 from 2025 China under definition Any reproduction, modification or distribution of this document, whether in part or entirely and by any means, is expressly prohibited except upon CAREL's express prior written permission. 2016 CAREL all rights reserved

3. CO2 condensing unit scenario Any reproduction, modification or distribution of this document, whether in part or entirely and by any means, is expressly prohibited except upon CAREL's express prior written permission. 2016 CAREL all rights reserved

4. Any reproduction, modification or distribution of this document, whether in part or entirely and by any means, is expressly prohibited except upon CAREL's express prior written permission. 2016 CAREL all rights reserved CO2 condensing unit application Hypermarket – Supermarket Big - Medium formats • Compressor racks, mainly CO2 transcritical booster • Natural refrigerant CO2 as standard • Continuous improvement for energy efficiency mostly in warm climates • Carbon footprint reduction Convenience store – Petrol Station Small – Extra small formats • Condensing Units • Natural refrigerant CO2 available • Partial load energy efficiency • Carbon footprint reductionNOW

5. CAREL Hecu sistema New efficiency frontier Food quality Innovation suitable for all Always connected Any reproduction, modification or distribution of this document, whether in part or entirely and by any means, is expressly prohibited except upon CAREL's express prior written permission. 2016 CAREL all rights reserved

6. New efficiency frontier DC inverter technology The compressor with DC motor allows considerable energy saving as operation is optimum at part loads. Any reproduction, modification or distribution of this document, whether in part or entirely and by any means, is expressly prohibited except upon CAREL's express prior written permission. 2016 CAREL all rights reserved On-Off cycling is not efficient as the refrigeration circuit needs time to reach the nominal efficiency. Part load conditions (i.e. 25%) won’t allow to reach nominal efficiency. Average efficiency is low. This area represents the increase of efficiency at part load. It’s bigger with a wider BLDC capacity range Refrigeration plant is working for the largest part of the time at low partial load

7. New efficiency frontier Any reproduction, modification or distribution of this document, whether in part or entirely and by any means, is expressly prohibited except upon CAREL's express prior written permission. 2016 CAREL all rights reserved ADAPTIVE WORKING CONDITION Smooth Lines •  Continuous superheat set point modulation according to real unit demand •  Dynamic modulation of cooling capacity results in no more off cycles •  Stable product temperature and less defrost needs •  High efficiency and stability with CAREL EEV SH set Regulation temp. Integrated Solution for System Optimization §  Continuos superheat modulation: Smooth Line §  Floating Suction for self adapting working conditions Dynamic SH setpoint

8. New efficiency frontier Floating Suction & Compressor speed modulation •  Continuous suction pressure set point modulation •  Optimum and stable control suction pressure control •  Compressor ON-OFF cycles reduced to the minimum •  High efficiency and stability with CAREL power+ Any reproduction, modification or distribution of this document, whether in part or entirely and by any means, is expressly prohibited except upon CAREL's express prior written permission. 2016 CAREL all rights reserved REAL TIME SYNCHRONIZATION Dynamic Suction setpoint

9. Innovation suitable for all Unique controller board For BLDC compressor management and CO2 valves management, both high pressure and flash gas valves Advanced DC compressor driver For an efficient and variable speed compressor driving and optimal performance at partial load Electronic expansion valves For a calibrated injection and precise regulation of gas cooler and receiver pressure Any reproduction, modification or distribution of this document, whether in part or entirely and by any means, is expressly prohibited except upon CAREL's express prior written permission. 2016 CAREL all rights reserved Fully  integrated  and  compact  solu3on   ALL  in  ONE  

10. Innovation suitable for all Maximum  ease  of  use   Easy set-up and optimisation •  Wizard start-up procedure for a simplified unit configuration •  Pre-setting of the main parameters and probes to reduce commissioning timing Extremely fast commissioning •  Automatic preconfiguration of the system network (refrigerated cases and condensing unit) •  Optimised default parameters with extensive laboratory tests Intuitive programming •  Different access profile for different user •  Simplified menu for a clear navigation •  PGD and pLD PRO terminal with full informations Any reproduction, modification or distribution of this document, whether in part or entirely and by any means, is expressly prohibited except upon CAREL's express prior written permission. 2016 CAREL all rights reserved

11. Food quality Full envelope management and optimum compressor control CAREL testing process approves the use of its inverter with different models of compressors to ensure completely safe operation in the best possible conditions. Any reproduction, modification or distribution of this document, whether in part or entirely and by any means, is expressly prohibited except upon CAREL's express prior written permission. 2016 CAREL all rights reserved Advanced oil return features •  By washing the showcases using CAREL E2V expansion valves •  With Speed Boost function Extreme  reliability  à  no  down  3me  

12. Food quality Highest quality of food preservation combined with high energy efficiency The condensing unit constantly responds to the cooling demand of each connected unit, dynamically adapting to current conditions while the E2V valves on each unit control the flow of refrigerant, and the MPXPRO controllers minimize temperature fluctuations Any reproduction, modification or distribution of this document, whether in part or entirely and by any means, is expressly prohibited except upon CAREL's express prior written permission. 2016 CAREL all rights reserved

13. Always connected Direct data access and notification With optimized interface for different device and configurable report Any reproduction, modification or distribution of this document, whether in part or entirely and by any means, is expressly prohibited except upon CAREL's express prior written permission. 2016 CAREL all rights reserved GPRS-ETHERNET Simple and deep MAINTENANCE Fullly independent access to the refrigeration unit to maximize the maintenance experience Intuitive site navigation With custom maps and graphics Easy optimization and higher service level With site graphs and trend

14. Always connected ENERGY CONSUMPTION Systems comparison and Business Intelligence within all units connected •  Energy dashboard with comparative analysis •  Analytics for optimal food preservation •  Centralised alarm monitoring •  Remote customized interface •  Geo localization Any reproduction, modification or distribution of this document, whether in part or entirely and by any means, is expressly prohibited except upon CAREL's express prior written permission. 2016 CAREL all rights reserved

15. Conclusions •  CO2 DC inverter technology is available in the market now Any reproduction, modification or distribution of this document, whether in part or entirely and by any means, is expressly prohibited except upon CAREL's express prior written permission. 2016 CAREL all rights reserved •  Considerable energy saving results can be obtained by DC technology and advanced control algorithms •  Both efficiency and refrigerants regulations can be achieved using DC inverter technology and natural refrigerant CO2 •  Reduced down time of the system with advanced envelope control and preventive actions •  Optimum food preservation with more stable product temperature •  Wide range of remote monitoring systems in order to optimize system performance, carry out preventive maintenance and analyze energy consumption

Add a comment