O slideshow foi denunciado.
Utilizamos seu perfil e dados de atividades no LinkedIn para personalizar e exibir anúncios mais relevantes. Altere suas preferências de anúncios quando desejar.

Benefits of measuring co2 reliably in cold storage applications

175 visualizações

Publicada em

Webinar slides about:
Overview of Cold Storage Applications
Benefits of Reliable CO2 Measurement
Some Words about Safety
CARBOCAP® Technology
Tips for Good CO2 Measurements
Summary, Further Reading

Publicada em: Tecnologia
  • Entre para ver os comentários

  • Seja a primeira pessoa a gostar disto

Benefits of measuring co2 reliably in cold storage applications

  1. 1. © Vaisala Benefits of Measuring CO2 Reliably in Cold Storage Applications Webinar September 24, 2019
  2. 2. © Vaisala Meet the Presenter Juhani Lehto. Product Manager at Vaisala, with over 10 years of experience in sensor technologies and industrial applications. M.Sc. (Tech.) in Electrical Engineering. Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 2
  3. 3. © Vaisala Vaisala in Brief  Established in 1936  Weather and Environment  Industrial Measurements – Industrial relative humidity (%RH) measurements with HUMICAP® since 1973 – CO2 measurements with CARBOCAP® since 1997  Serves customers in over 150 countries every year  Visit www.vaisala.com Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 3
  4. 4. © Vaisala Contents  Overview of Cold Storage Applications  Benefits of Reliable CO2 Measurement  Some Words about Safety  CARBOCAP® Technology  Tips for Good CO2 Measurements  Summary, Further Reading Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 4
  5. 5. © Vaisala Cold Storage Applications and CO2 Measurement  Food ripening/maturing (fruits, cheese, meat, etc.)  (Frozen) food manufacturing, storage and transportation  Other storage areas that are using CO2 as a refrigerant (R744)  Dry ice manufacturing, transportation and use Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 5
  6. 6. © Vaisala Benefits of Reliable CO2 Measurements  In vegetable/fruit storage/transportation  Right CO2 level is important to keep fruit fresh  Better control leads to more predictable and better quality  Safety aspects  Cooling consumes a significant amount of energy and money  According to the IEA cooling’s share of total energy consumption was almost 6% in 2015*  To ensure optimal refrigerator performance, refrigerant levels are important  Refrigerant filling and maintenance costs money  Locating leaks as soon as possible saves both energy and refrigerant Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 6 *) https://www.iea.org/topics/energyefficiency/buildings/cooling/
  7. 7. © Vaisala Some Words about Safety Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 7
  8. 8. © Vaisala EN 378 - Safety and Environmental Requirements  There are local laws, regulations, and standards depending on the country  EN 378 standard (2016) - ”Refrigerating systems and heat pumps. Safety and environmental requirements”  Specifies the monitoring requirements  Specifies type and performance of detectors  In practice, CO2 monitoring is mandatory in any machinery room or occupied space... -”Any suitable detector may be used... that activates the shut-off valves, the alarm system, the mechanical ventilation or other emergency controls” (EN 378-3:2016 / 9.3.1: Type and performance of detectors, General) Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 8
  9. 9. © Vaisala The Optical Infrared (IR) Measurement Technology  Infrared light is absorbed by different gases at a known light wavelength  A filter in front of the detector only passes light in the CO2 bandwith  The detector measures the intensity of the light and converts this into the CO2 concentration Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 9
  10. 10. © Vaisala 0 10 20 30 40 50 60 70 80 90 100 3.5 4 4.5 5 Transmission Wavelength (micrometers) CO2 absorption FPI chip Air gap Upper mirror Lower mirror Silicon substrate Absorption measurement Tunable Bandpass Filter Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 10
  11. 11. © Vaisala 0 10 20 30 40 50 60 70 80 90 100 3.5 4 4.5 5 Reference measurement Air gap Upper mirror Lower mirror Silicon substrate Transmission Wavelength (micrometers) CO2 absorption Tunable Bandpass Filter Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 11
  12. 12. © Vaisala Benefits of CARBOCAP® Stability Long lifetime Continuous CO2 environment Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 12
  13. 13. © Vaisala Tips for Good CO2 Measurements: Tackling Challenges in Fruit Storage Facilities  High humidity and risk of mold (some fruits and vegetables release moisture)  Risk of damage by machinery (forklifts, pump trolleys, pressure washers)  Dust and dirt, pests, chemicals (pesticides, detergents, preservatives) Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 13
  14. 14. © Vaisala Tips for Good CO2 Measurements: Tackling Challenges in Refrigerator Machine Rooms  Sensor positioning:  Close to potential leak sources  CO2 is heavier than air, sinks to floor level  Ventilation can affect measurement, so avoid installing close to air inlet vents  Open doors and windows also change the CO2 concentration  Temperature variations (might affect the CO2 measurement)  Avoid installing the CO2 detector close to vibrating engines or actuators Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 14
  15. 15. © Vaisala Tips for Good CO2 Measurements: Tackling Challenges in Dry Ice Transportation  Sufficient ventilation is (literally) a deadly serious business when operating with dry ice in confined spaces  Challenge to monitor CO2 levels in dry ice transportation as well  Handheld monitoring instrument might be a good solution Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 15 Vaisala GM70 Handheld Indicator
  16. 16. © Vaisala Vaisala Indigo 200 and GMP250 Series CO2 Probes for Online CO2 Monitoring Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 16 GMP252: 0... 3 %CO2 (0... 30 000 ppmCO2) GMP251: 0... 20 %CO2 (0... 200 000 ppmCO2) Remote probe cables 1... 10+ m Indigo 201 Analog Transmitter (V/ mA) Indigo 202 Digital Transmitter (Modbus)
  17. 17. © Vaisala Application Example: Online CO2 Monitoring Solution in Dry Ice Factory Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 17 CO2 Tank Ice manuf.Ice storage Ventilation out Ventilation in (fresh air) Indigo 200 with GMP252 CO2 probe Alarm light outside Indicates too high CO2 concentration inside Alarm buzzer inside warning people to leave Alternative/extra installation location for Indigo 200 with GMP252
  18. 18. © Vaisala How Vaisala Can Help You  Over 20 years of experience in CO2 measurements  Wide range of dedicated industrial instruments  Unique, patented technologies  Local and global support  Other needed parameters (humidity, temperature...)  Instruments and systems Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 18 GMP343 GM70 Indigo 200 GMP252
  19. 19. © Vaisala Summary
  20. 20. © Vaisala Further Reading  Know the Risks – Work Safely with CO2  https://www.vaisala.com/sites/default/files/documents/VIM-G-CO2-Work-Safety-App-note-B211122EN.pdf  Measuring CO2 in Refrigeration Applications  https://www.vaisala.com/sites/default/files/documents/CEN-G-Measuring-CO2-in-Refrigeration-Application-note-B211530EN.pdf  CO2 Measurements in Breweries and Wineries  https://www.vaisala.com/system/files/documents/CEN-G-CO2-Measurement-in-Breweries-and-Wineries-Application-Note-B211529EN-A-LOW-v3.pdf  How to Measure Carbon Dioxide  https://www.vaisala.com/sites/default/files/documents/CEN-TIA-Parameter-How-to-measure-CO2-Application-note-B211228EN-A.pdf  Vaisala CARBOCAP® Technology video  https://www.youtube.com/watch?v=JS4i2PDXcvI  Understanding Measurement Performance and Specifications  https://www.vaisala.com/sites/default/files/documents/Understanding-Accuracy-Specifications-Technical-note-B211482EN.pdf Webinar: Benefits of Measuring CO2 Reliably in Cold Storage Applications 20

×