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07 eurammon natural refrigeration award 2017_lerch_f3_v2

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Natural Refrigeration Award 2017_Lerch

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07 eurammon natural refrigeration award 2017_lerch_f3_v2

  1. 1. eurammon Symposium 2017 Bavarian Breakfast Maker Green Line SPEAKER: DENNIS LERCH UNIVERSITY OF APPLIED SCIENCES KARLSRUHE Schaffhausen, 22nd / 23nd June, 2017
  2. 2. Schaffhausen, 22nd / 23rd June, 2017 Page 2 1. Motivation of the project work 2. How does a fridge work? 3. Technical layout design 4. Bavarian Breakfast Maker Green Line 5. Components of the heat pump 6. Piping and instrumentation diagram 7. Log(p), h diagram 8. Range of application 9. Current state of the project Content
  3. 3. Schaffhausen, 22nd / 23rd June, 2017 Page 3 • Practical application • Useful flagship project for refrigeration engineering • Touch, feel and taste • Natural refrigerant • Innovative utilization of waste heat sustainability • Effective operation • Attractive design • It´s not a nice to have, it´s a must have 1. Motivation of the project work
  4. 4. Schaffhausen, 22nd / 23rd June, 2017 Page 4 2. How does a fridge work?
  5. 5. Schaffhausen, 22nd / 23rd June, 2017 Page 5 • For one football team (11 Persons) 22 bottles of wheat beer 33 white sausages • 4 °C cold water temperature for the beer • 80 °C hot water temperature for the Bavarian veal sausage • Time: 1 hour • R 600a because of the pressure ratio • Hygienic requirements • Pretzel display in an snowflake design 3. Technical layout design
  6. 6. Schaffhausen, 22nd / 23rd June, 2017 Page 6 4. Bavarian Breakfast Maker Green Line
  7. 7. Schaffhausen, 22nd / 23rd June, 2017 Page 7 • Semi hermetic piston compressor • Plate heat exchanger • Additional finned heat exchanger • Thermostatic expansion valve • Medium high finned tubes • Natural refrigerant (isobutane) • Explosion-proof equipment (fan, pressure switches…) • Highly efficient pumps • Electronic frequency converter 5. Components of the heat pump
  8. 8. Schaffhausen, 22nd / 23rd June, 2017 Page 8 6. Piping and instrumentation diagram Warmwasserbecken Kaltwasserbecken PZ A H PI PZ ALPI
  9. 9. Schaffhausen, 22nd / 23rd June, 2017 Page 9 7. Log(p),h diagram
  10. 10. Schaffhausen, 22nd / 23rd June, 2017 Page 10 • 35 bottles of beer from 20 °C to 5 °C • 3,4 kg of Bavarian veal sausage from 6 °C to 80 °C • 45 min to get cold beer and hot sausages • At the beginning a COP of 9 • During operation a COP of 3.25 • Energy Efficiency Ratio 3.77 • Mobile, just 125 kg • Needs only 220 V/ 16 A supply voltage → The system was successfully tested 8. Range of application
  11. 11. Schaffhausen, 22nd / 23rd June, 2017 Page 11 8. Range of application temperature
  12. 12. Schaffhausen, 22nd / 23rd June, 2017 Page 12 • Bavarian veal sausage with wheat beer • Hot dogs with beer • Saumagen with sauerkraut and wine • Chili con carne with beer • Sous vide cooking • Just to keep food warm and drinks cold • Cheese fondue with white wine? • Many more possibilities… 8. Range of application
  13. 13. Schaffhausen, 22nd / 23rd June, 2017 Page 13 9. Current state of the project
  14. 14. Schaffhausen, 22nd / 23rd June, 2017 Page 14 9. Current state of the project
  15. 15. Schaffhausen, 22nd / 23rd June, 2017 Page 15 9. Current state of the project
  16. 16. Schaffhausen, 22nd / 23rd June, 2017 Page 16 9. Current state of the project
  17. 17. Schaffhausen, 22nd / 23rd June, 2017 Page 17 The project was proudly sponsored by: • Alfa Laval Mid Europe GmbH, D • Bellheimer Brauerei, D • BITZER Kühlmaschinenbau GmbH, D • Combitherm Apparate- und Anlagenbau GmbH, D • Helios Ventilatoren GmbH + Co. KG, D • Danfoss GmbH, D • Honeywell GmbH, D • KSB AG, D • RITTAL GmbH + Co. KG, D • SEW Eurodrive GmbH + Co. KG, D • SMARDT – OPK Chillers GmbH, D • Stierlen GmbH, D • Wieland Werke AG, D • WIKA SE + Co. KG, D
  18. 18. Contact: Dennis Lerch Uhlandstraße 11 Karlsruhe Germany Dennis.Lerch@web.de The project work was made by: Dennis Lerch and Stefan Brinkmöller Students of the University of Applied Sciences Karlsruhe Supervising professor: Prof. Dr.-Ing. habil. Michael Kauffeld Thank you for your attention!

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