RenTeknik Group        Cooling and Refrigeration System Analyzer    KNOW THE PERFORMANCE | MAXIMIZE THE EFFICIENCY1       ...
Did You Know?    •   15-20% of the world’s total electricity consumption is for refrigeration        and air-conditioning ...
Background•   Chilled Water and Cooling Systems can be costly to operate and    maintain•   There is the misconception tha...
•   Portable Analyzer originally developed in Sweden 1986    •   Fixed Analyzer developed 2004    •   Web based monitoring...
The Principle Behind ClimaCheck    •   Base on the First Law of Thermodynamics – energy can neither be        created nor ...
Accuracy•   Accuracy of Calculated Data    – Coefficient of Performance (COP) - ±5%    – Cooling and heating capacity (±7%...
How Does ClimaCheck Work?•   Non-Invasive Sensors are attached to Equipment points•   Basic setup of 7 temperature sensors...
Thermodynamic Model                                                                         • 2 pressures sensors         ...
Quick Non-Invasive Sensor Attachment9              Property of Renteknik Group Inc.  All rights reserved
Sample Applications10       Property of Renteknik Group Inc.  All rights reserved
ClimaCheck Performance Analyzer     •   Optimization increases energy efficiency     •   Estimated 10-40% Energy Savings  ...
ClimaCheck PA Pro Portable     •   In field measurements for         commissioning, service or inspections     •   Documen...
ClimaCheck PA Pro Fixed     •   Continuous monitoring of energy         consumption and performance     •   Access to real...
The Benefits of a Fixed Installation     •   Knowing how a system is performing allows continuous monitoring         of en...
Sample Installations     Pressure and temperature sensors                                     Temperature sensor15        ...
Sample Installations          Current Transformers                                                                        ...
Web Portal Sample–System Flow Chart17               Property of Renteknik Group Inc.  All rights reserved
Web Portal Sample–System Table18             Property of Renteknik Group Inc.  All rights reserved
Web Portal Sample–System Graphic19              Property of Renteknik Group Inc.  All rights reserved
Web Portal Sample–User Settings20             Property of Renteknik Group Inc.  All rights reserved
Web Portal Sample–Flag Settings21             Property of Renteknik Group Inc.  All rights reserved
Web Portal Sample–Logic Settings22             Property of Renteknik Group Inc.  All rights reserved
Web Portal Sample–Alarm Settings23             Property of Renteknik Group Inc.  All rights reserved
Web Portal Sample–Power Profile24             Property of Renteknik Group Inc.  All rights reserved
Web Portal Sample–Energy Statistics25               Property of Renteknik Group Inc.  All rights reserved
Applications     •   Product and Systems Development                               •       Troubleshooting         Leading...
Multiple Uses     •Commissioning new systems     •Continuous monitoring     •Preventive maintenance     •Trouble shooting ...
Objective of Performance Analysis•   The objective of performing an analysis of a Chilled Water System is    initially to ...
What is the Process?                                                                                     E N   E R     •  ...
What Does ClimaCheck Provide?•   Enables Engineers and Refrigeration Technicians to:    – Perform cost effective real-time...
Practical Benefits of ClimaCheck     •   All data is available as soon as sensors are connected - most of the         time...
Typical Findings                        Common Identified Problems     Refrigerant shortage or over-charge     Compressor ...
Significant Savings are Achievable       Historical savings using ClimaCheck PA       Supermarkets                        ...
Misconception About              ClimaCheck vs. BAS/EMS•   ClimaCheck is Complimentary to any BAS/EMS•   The BAS/EMS contr...
Analogy to Your Car•   Computers in cars control the functionality of the engine,     improving efficiency over older cars...
Examples and Case Studies     Property of Renteknik Group Inc.  All rights reserved
Dual Compressor Chiller Example        Property of Renteknik Group Inc.  All rights reserved
Sample Data – Military Base•   The system is working under slowly fluctuating conditions on condenser water side •   Is in...
Sample Data – Military Base•   Measured compressor isentropic efficiency is noted to be low compared to the     efficiency...
Sample Data – Military Base•   The subcool is lower than what is normally desired to ensure that refrigerant does not pass...
Supermarket Case Study Results-Italy•   Resetting of system controls                            •      Optimization and co...
Case Study– Portland, Oregon, USA•   All 14 roof top units (27 compressors) analyzed were operating    outside of manufact...
Case Study–Ice Rink, Sweden•     Installed ClimaCheck in 2008 to visualize and track optimization      efforts (first tria...
Working Together•   Renteknik has three levels of ClimaCheck Services that are offered     – Turnkey Solution to Clients: ...
Other Services            Renteknik Group                         “Bridge the Road to Change”             Energy Engineeri...
For More Information Contact Us     RenTeknik Group Inc.     3228 South Service Road, Suite 301,     Burlington, Ontario, ...
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Renteknik Refrigeration and Cooling Systems - Know the Perfromance | Maximize the Efficiency - linkedin

  1. 1. RenTeknik Group Cooling and Refrigeration System Analyzer KNOW THE PERFORMANCE | MAXIMIZE THE EFFICIENCY1 Property of Renteknik Group Inc.  All rights reserved
  2. 2. Did You Know? • 15-20% of the world’s total electricity consumption is for refrigeration and air-conditioning • Electricity cost for cooling often represents 40-60% of the total energy consumed in a building in the cooling seasons • The majority of cooling systems don’t work as efficiently as they could2 Property of Renteknik Group Inc.  All rights reserved
  3. 3. Background• Chilled Water and Cooling Systems can be costly to operate and maintain• There is the misconception that operating = efficient• Without an effective method and efficient tool, these system normally operate inefficiently• ClimaCheck allows you to see into the ‘black box’ on system performance and realize significant energy savings through optimization• Renteknik is the North American Technology Integration Partner for ClimaCheck AB from Sweden Property of Renteknik Group Inc.  All rights reserved
  4. 4. • Portable Analyzer originally developed in Sweden 1986 • Fixed Analyzer developed 2004 • Web based monitoring launch 2008 • Used by notable European companies in commercial, industrial, institutional and retail facilities • Standard for commissioning and re-commissioning of systems throughout the world World Wildlife Fund estimate global CO2 reduction in 2020 to 72 million tons from 50% of4 market implementing improved service Property of Renteknik Group Inc.  All rights reserved
  5. 5. The Principle Behind ClimaCheck • Base on the First Law of Thermodynamics – energy can neither be created nor destroyed, it can only be changed from one form to another Mass flow = (electrical input-heat losses) (1) Enthalpy difference Cooling Capacity = Mass flow * (h2 – h3) (2) Heating Capacity = Mass flow * (h1 – h3) (3) Isentropic Efficiency = (hs – h2) * (1 – rel. heat loss) (4) (h1 – h2)5 Property of Renteknik Group Inc.  All rights reserved
  6. 6. Accuracy• Accuracy of Calculated Data – Coefficient of Performance (COP) - ±5% – Cooling and heating capacity (±7%) – Power input (±2%) – Compressor isentropic efficiency (±3%)• Sensors – Pressure sensor (±1% FS - Full Scale) – Temperature sensor PT1000 Class A – Electrical Energy power meter ClimaCheck EP Pro, Class B – Current Transformers - 20-120% of rating (±2%) Property of Renteknik Group Inc.  All rights reserved
  7. 7. How Does ClimaCheck Work?• Non-Invasive Sensors are attached to Equipment points• Basic setup of 7 temperature sensors, 2 pressure sensors and 1 active power sensor• Set-up by a qualified Technician• 30 minutes/piece of Equipment 2 Pressure Sensors connected 7 Surface Temperature at service ports Sensors 1 Electrical Input Sensor Property of Renteknik Group Inc.  All rights reserved
  8. 8. Thermodynamic Model • 2 pressures sensors • 7 temperatures sensors • 1 power input sensor • A thermodynamic evaluation produces an unbiased analysis with no information about the system or compressor required8 Property of Renteknik Group Inc.  All rights reserved
  9. 9. Quick Non-Invasive Sensor Attachment9 Property of Renteknik Group Inc.  All rights reserved
  10. 10. Sample Applications10 Property of Renteknik Group Inc.  All rights reserved
  11. 11. ClimaCheck Performance Analyzer • Optimization increases energy efficiency • Estimated 10-40% Energy Savings • Increases reliability, reduced equipment wear • Alerts and alarms to changes effecting operating efficiency • Lowers operating and maintenance expenses • Reduces CO² emissions • Benefits the owner and the environment!11 Property of Renteknik Group Inc.  All rights reserved
  12. 12. ClimaCheck PA Pro Portable • In field measurements for commissioning, service or inspections • Documentation and analysis of the equipment’s actual performance • Immediate and precise answers on heat pump, cooling and air conditioning unit operations12 Property of Renteknik Group Inc.  All rights reserved
  13. 13. ClimaCheck PA Pro Fixed • Continuous monitoring of energy consumption and performance • Access to real time data via the internet • Predefined Energy Reports provide continuous information about the equipment’s energy consumption13 Property of Renteknik Group Inc.  All rights reserved
  14. 14. The Benefits of a Fixed Installation • Knowing how a system is performing allows continuous monitoring of energy efficiency • If a compressor or heat exchanger performance fails, refrigerant leaks, or if the equipment’s “energy profile” changes adversely, the system automatically sends an alarm (email or SMS) regarding the changes • Detailed information about the problem is available via email or text messages anywhere, anytime14 Property of Renteknik Group Inc.  All rights reserved
  15. 15. Sample Installations Pressure and temperature sensors Temperature sensor15 Property of Renteknik Group Inc.  All rights reserved
  16. 16. Sample Installations Current Transformers Custom ClimaCheck System Installed Pressure sensor on service port16 Property of Renteknik Group Inc.  All rights reserved
  17. 17. Web Portal Sample–System Flow Chart17 Property of Renteknik Group Inc.  All rights reserved
  18. 18. Web Portal Sample–System Table18 Property of Renteknik Group Inc.  All rights reserved
  19. 19. Web Portal Sample–System Graphic19 Property of Renteknik Group Inc.  All rights reserved
  20. 20. Web Portal Sample–User Settings20 Property of Renteknik Group Inc.  All rights reserved
  21. 21. Web Portal Sample–Flag Settings21 Property of Renteknik Group Inc.  All rights reserved
  22. 22. Web Portal Sample–Logic Settings22 Property of Renteknik Group Inc.  All rights reserved
  23. 23. Web Portal Sample–Alarm Settings23 Property of Renteknik Group Inc.  All rights reserved
  24. 24. Web Portal Sample–Power Profile24 Property of Renteknik Group Inc.  All rights reserved
  25. 25. Web Portal Sample–Energy Statistics25 Property of Renteknik Group Inc.  All rights reserved
  26. 26. Applications • Product and Systems Development • Troubleshooting Leading manufacturers of systems for ClimaCheck provides fast cooling and heating use ClimaCheck’s troubleshooting to minimize energy solutions for quality assurance of consumption costs, repair time and products and solutions down time • Commissioning and Inspections • Preventive Maintenance and When new equipment is being used for Service the first time or when the warranty Predefined performance reports can period is coming to an end, alert to possible imminent fails and ClimaCheck’s solutions provides breakdowns making service and assurance that equipment is operating maintenance easier and more efficiently effective. Analysis of Performance based maintenance vs. passage of time26 Property of Renteknik Group Inc.  All rights reserved
  27. 27. Multiple Uses •Commissioning new systems •Continuous monitoring •Preventive maintenance •Trouble shooting •Decision support •Real Time Performance inspection27 Property of Renteknik Group Inc.  All rights reserved
  28. 28. Objective of Performance Analysis• The objective of performing an analysis of a Chilled Water System is initially to improve the System’s performance through optimization• Adjusting settings or controls• Identify defective or inefficient system components that may require immediate or future capital replacement• After optimization establish a new base line for performance• Continue to monitor the system and alert to deviations from optimum energy efficiency Property of Renteknik Group Inc.  All rights reserved
  29. 29. What is the Process? E N E R • Step 1: Get a clear picture of how it is currently working by installing a ClimaCheck Performance Analyzer • Step 2: Monitor and analyze the equipment operation and performance (energy efficiency) • Step 3: Identify areas that require adjustment, upgrading or replacement • Step 4: Optimize the system and monitor ongoing efficiency to ensure maximum is maintained29 Property of Renteknik Group Inc.  All rights reserved
  30. 30. What Does ClimaCheck Provide?• Enables Engineers and Refrigeration Technicians to: – Perform cost effective real-time analysis – Evaluate system performance – See real-time COP, capacity, compressor efficiency and other vital performance parameters without tedious calculations – Data is presented dynamically in charts and tables providing an immediate picture of actual performance Property of Renteknik Group Inc.  All rights reserved
  31. 31. Practical Benefits of ClimaCheck • All data is available as soon as sensors are connected - most of the time without need to stop the system • ClimaCheck identifies irregularities in compressor and component performance enabling pre-emptive maintenance and energy optimization • Without an effective method and an efficient tool, these problems normally go unrealized, with the plant continuing to perform inefficiently, or eventually breaking down • Prevents potentially catastrophic consequences from refrigerant loss and stock damage31 Property of Renteknik Group Inc.  All rights reserved
  32. 32. Typical Findings Common Identified Problems Refrigerant shortage or over-charge Compressor damage or wear Fan/pump under performance Fouling of heat exchangers Flow problems on secondary media (air/water/brine) Control problems Incorrect superheat setting32 Property of Renteknik Group Inc.  All rights reserved
  33. 33. Significant Savings are Achievable Historical savings using ClimaCheck PA Supermarkets 20-30% Heat pumps 10-30% Ice rinks 20-40% Industry 10-30% Air Conditioning 10-30%33 Property of Renteknik Group Inc.  All rights reserved
  34. 34. Misconception About ClimaCheck vs. BAS/EMS• ClimaCheck is Complimentary to any BAS/EMS• The BAS/EMS controls the functionality of the system/equipment and may monitor some aspects of energy use• The ClimaCheck system monitors the performance and ensures that they are operating at maximum energy efficiency Property of Renteknik Group Inc.  All rights reserved
  35. 35. Analogy to Your Car• Computers in cars control the functionality of the engine,  improving efficiency over older cars.  In the same way many buildings have BAS/EMS Systems• These computers don’t demonstrate how efficiently the car is being  operated.  Same is true in buildings and building systems• Modern cars have advance computer technology to provide additional  real‐time information on efficiency (L/100kms, tire pressure, oil life etc.)• ClimaCheck provides this function for cooling and refrigeration systems  Property of Renteknik Group Inc.  All rights reserved
  36. 36. Examples and Case Studies Property of Renteknik Group Inc.  All rights reserved
  37. 37. Dual Compressor Chiller Example Property of Renteknik Group Inc.  All rights reserved
  38. 38. Sample Data – Military Base• The system is working under slowly fluctuating conditions on condenser water side • Is in a fairly stable operating condition• Supply chilled water is consistently slightly below 8°C.  The returning cooling water  is varying in temperature when entering the condenser at between 27°C and 34°C • Fluctuation indicates that the system is not in a fully stable operating condition – Check pumps, fans and valves – possible upgrade to VFD Property of Renteknik Group Inc.  All rights reserved
  39. 39. Sample Data – Military Base• Measured compressor isentropic efficiency is noted to be low compared to the  efficiency that would be expected from a state‐of‐the‐art compressor of this type• Not unexpected for a centrifugal compressor that is operating at low part load Property of Renteknik Group Inc.  All rights reserved
  40. 40. Sample Data – Military Base• The subcool is lower than what is normally desired to ensure that refrigerant does not pass  through the condenser in an uncondensed state• Contributing factor is part load operation when more refrigerant will migrate to evaporator  resulting in a low T on the water side• Full load analysis would need to be carried out to validate if refrigerant charge is correct  • Confirm data against the recommended values for subcool at full and part load from the  manufacturer’s data, if available Property of Renteknik Group Inc.  All rights reserved
  41. 41. Supermarket Case Study Results-Italy• Resetting of system controls • Optimization and correction of resulted in a drastic identified problems resulted in improvement to the COP energy savings of 15-30% on resulting in a 27% the refrigeration systems improvement resulting in savings of over• Refrigeration systems typically $415,000 annual electricity use 50% of the total electricity costs consumption of the store • The cost of analyzing the• Total electrical consumption refrigeration systems was of the Supermarkets was recovered during the first year reported to have decreased by the energy savings and the by 7 to 13% early detection of pending compressor problems which resulted in pre-emptive maintenance instead of costly failures Property of Renteknik Group Inc.  All rights reserved
  42. 42. Case Study– Portland, Oregon, USA• All 14 roof top units (27 compressors) analyzed were operating outside of manufacturers specifications Red = outside spec Property of Renteknik Group Inc.  All rights reserved
  43. 43. Case Study–Ice Rink, Sweden• Installed ClimaCheck in 2008 to visualize and track optimization efforts (first trial location – now in all rinks in the Municipality• System optimization and installation of energy efficiency measures with a max. 2 year payback• Some of the measures included: Control and setting adjustments, lighting upgrade, heat recovery to heat cafeteria, installation of glass walls, relocation of fresh air ducts, change in arena air temperature, reflective cloth on ceiling 2008 2011 Change Air temperature +8°C +5°C hockey / +6°C Figure Skating Days with ice 258 days 315 days 22% increase Booking hours 2,701 3,766 44% increase kWh per day Approx. 4,100 Approx. 2,500 39% decrease Total kWh used 1,385,816 1,263,352 8.8% decrease Property of Renteknik Group Inc.  All rights reserved
  44. 44. Working Together• Renteknik has three levels of ClimaCheck Services that are offered – Turnkey Solution to Clients: Scoping, Investigation (incl. ClimaCheck system), Reporting, Project Management and Hand-off Report – Sub-consultant: Working for/with a Consultant to provide all or part of the services above – Product sales and technical support: Working with Contractors and Consultants to spec appropriate ClimaCheck Systems and providing technical support as the North American Technology Integration Partner for ClimaCheck Property of Renteknik Group Inc.  All rights reserved
  45. 45. Other Services Renteknik Group “Bridge the Road to Change” Energy Engineering and Energy Management Programs• Onsite Energy Efficiency Assessments and Energy Audits• Energy Efficiency and Optimization Strategy/Recommendations• Guidance on available funding opportunities• Procurement and Installation of Metering Equipment• Energy Management and Building Automation Systems• Monitoring and Analysis of implemented measures• Energy Engineering and Energy Optimization Property of Renteknik Group Inc.  All rights reserved
  46. 46. For More Information Contact Us RenTeknik Group Inc. 3228 South Service Road, Suite 301, Burlington, Ontario, L7N 3H8, Canada info@renteknikgroup.com www.renteknikgroup.com T: 905-634-3888 TF: 1-855-634-388846 Property of Renteknik Group Inc.  All rights reserved
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