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Zanotti - Lorenzo Bulgarelli - Expo 13 ottobre 2015

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Le ultime tecnologie per la conservazione del cibo, esempio di collaborazione internazionale

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Zanotti - Lorenzo Bulgarelli - Expo 13 ottobre 2015

  1. 1. EXPO Milano 13/10/2015 • Emerging food-processing technologies: example of international cooperation. • Cooperation between UNIDO and Zanotti for the development of a pilot project for the reduction of greenhouse gas emissions in plants designed for industrial refrigeration. • Eng. Lorenzo Bulgarelli, Technical Director Zanotti S.p.A.
  2. 2. EXPO Milano 13/10/2015 With this brief report I will provide a clear picture of what has been achieved thanks to the cooperation between Zanotti and UNIDO, in agreement with Natural Resources and Environment Ministry of Vietnam. This project was inspired by UNIDO, and on this occasion I thank Dr Savigliano, who promoted this initiative, thanks to which our cooperation has borne. Thanks to new technologies introduced in refrigeration field , it has been possible to promote this project aiming to the reduction of greenhouse gas emissions. Through this project UNIDO would like to support developing countries in the employment of new systems which have to lead to an increase and at the same time at the reduction of the greenhouse gas in the atmosphere.
  3. 3. The program involves mainly those countries where HCFC refrigerants like R22 are still employed and where the problem of obsolete machinery with remarkable leaks is particularly acute. In order to understand to which reality we refer to, please just look at the following picture where you can see a R22 bottle connected permanently with a running compressor, in a plant where there are regular leaks nor detected neither repaired. EXPO Milano 13/10/2015
  4. 4. EXPO Milano 13/10/2015
  5. 5. In these contexts it is really clear what it means having efficient installations which can store food in the best way possible. That does not only signify the availability of the necessities for life, but also a means to support and develop their economy thanks to the export of their own products. For this project we have planned to use R290 propane so that to offer an alternative with almost zero environmental impact. EXPO Milano 13/10/2015
  6. 6. Moreover we had the necessity to supply units, ready within a limited time period, which could be easily installed on already existing warehouses without no requirement for excessively demanding works. For the above mentioned reasons we have selected monobloc type units easy to standardize and to place also in medium/large volume cold rooms. We have installed a number of units sufficient to ensure the maintenance of an appropriate temperature in the cold room also in the event of breakdown. EXPO Milano 13/10/2015
  7. 7. EXPO Milano 13/10/2015 Dimensions of the unit installed
  8. 8. The type of system designed to store frozen products provides that specific components suitable for R290 are used, such as semi-hermetic compressors, solenoid valves, thermal expansion valves, Low/High pressure switches in addition to some safety devices concerning electrical parts, like remote control board. EXPO Milano 13/10/2015
  9. 9. Detailed view of some components EXPO Milano 13/10/2015
  10. 10. The units in question have undergone changes with the aim to minimizing the refrigerant charge, such as the employment of new condensers characterised by very small diameter. However we have maintained some historical prerogatives of our products, such as the defrost by hot gas, which is remarkably effective and quick for evaporator cleaning. Anyway, I do not wish to explain any longer the technical details of the plant as this is not the purpose of my speech. EXPO Milano 13/10/2015
  11. 11. Now I would like to move on to the «Travel notes». My experience is still fresh as it occurred last September. As in several cases the images say more than a thousand words, I would like you to have a look at the following pictures through which you can see what has been achieved. All that has been being monitored in order to provide useful experience and technical refinements. EXPO Milano 13/10/2015
  12. 12. EXPO Milano 13/10/2015 1st Site: First units installed in Hanoi, Group photo during unit inspection
  13. 13. EXPO Milano 13/10/2015 Photo of the unit installed: 20 hours have passed from the final inspection and the setting in motion.
  14. 14. EXPO Milano 13/10/2015 2° Site : Others units installed in Ho Chi Minh City, Group photo: the 3 units are already working
  15. 15. EXPO Milano 13/10/2015 Mounting phases of the units. Before installing them, it was necessary to carry out works to the masonry structure. Also in these case, the constructions times did not last more than 30 hours.
  16. 16. EXPO Milano 13/10/2015 3rd Site : Other groups installed in the area of Hanoi. Mounting phases of the first machine Also in this case it was necessary to carry out masonry works to allow the mounting of the units. Finishing works will be executed later on.
  17. 17. Conclusion The project has given visibility to the clear overcoming of the difficulties:  necessity to train the staff responsible for unit inspections as the units were shipped without refrigerant but only under nitrogen pressure, due to obvious safety reasons;  Information transfer necessary for the mounting and the setting in motion, as well as for the on-site service. It is with a certain pride that I can say today that all persons in the different locations have shown a remarkable ability during the various works phases. EXPO Milano 13/10/2015
  18. 18. And finally, of course, I would like to express my sincere thanks to all the organizers of these conferences as well as this one, last but not least. Thanks to these meeting we have the possibility to share information and experience , which have not to remain only end-examples in themselves but they have to be considered as valuable ideas for new realities. Thank you for your attention EXPO Milano 13/10/2015
  19. 19. Zanotti S.p.A. Via M.L.King, 30 46020 Pegognaga (MN) Italy Tel: +39-0376-5551 Fax: +39-0376-536454 info@zanotti.com www.zanotti.com EXPO Milano 13/10/2015

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