Energy consumption optimization of a continuous ice cream process

Abstract This work investigates potential energy saves in an ice cream freezer by using a variable speed compressor and optimization’s methodology for operating conditions during the process. Two configurations to control the refrigeration capacity were analyzed, the first one, modifies the pressure through the pilot control valve (conventional refrigeration system) and the second one with a variable speed compressor, both with a float expansion valve. Variable speed compressor configuration has showed the highest coefficient of performance and around of 30% less of energy consumption than the conventional one. The optimization of operating conditions in order to minimize the energy consumption is also presented. It was calculated only in France, for all ice cream and sorbet production, it is possible to save energy between 11 and 14 MWh per year by optimizing the operation of the refrigeration system through a variable speed compressor configuration.

[1]  Youn Cheol Park.  Transient analysis of a variable speed rotary compressor , 2010 .

[2]  S. Yusup,et al.  Application of response surface methodology for optimizing transesterification of Moringa oleifera oil: Biodiesel production , 2011 .

[3]  P. Bongers.  A heat transfer model of a scraped surface heat exchanger for ice cream , 2006 .

[4]  S. Anand,et al.  Simulation studies of refrigeration cycles: A review , 2013 .

[5]  Saad Mekhilef,et al.  A review on energy saving strategies in industrial sector , 2011 .

[6]  Orhan Ekren,et al.  Comparison of different controllers for variable speed compressor and electronic expansion valve , 2010 .

[7]  Namjin Jang,et al.  Multiresponse optimization based on the desirability function for a pervaporation process for producing anhydrous ethanol , 2009 .

[8]  F. Qin,et al.  Freezing on subcooled surfaces, phenomena, modeling and applications , 2009 .

[9]  Savvas A. Tassou,et al.  VARIABLE-SPEED CAPACITY CONTROL IN REFRIGERATION SYSTEMS , 1996 .

[10]  Christian J.L. Hermes,et al.  A model-driven multivariable controller for vapor compression refrigeration systems , 2009 .

[11]  Saad Mekhilef,et al.  Applications of variable speed drive (VSD) in electrical motors energy savings , 2012 .

[12]  Frank G.F. Qin,et al.  Heat transfer and power consumption in a scraped-surface heat exchanger while freezing aqueous solutions , 2006 .

[13]  Ricardo Nicolau Nassar Koury,et al.  Numerical simulation of a variable speed refrigeration system , 2001 .

[14]  Shuangquan Shao,et al.  Dynamic simulation of variable capacity refrigeration systems under abnormal conditions , 2010 .

[15]  Kristina Norne Widell,et al.  Reducing power consumption in multi-compressor refrigeration systems , 2010 .

[16]  C George,et al.  A Balancing Act: Optimizing a Product's Properties , 1994 .

[17]  D. Leducq,et al.  Non-linear predictive control of a vapour compression cycle , 2006 .

[18]  Zhao-gang Qi,et al.  Analysis and simulation of mobile air conditioning system coupled with engine cooling system , 2007 .

[19]  M. Mohanraj,et al.  Applications of artificial neural networks for refrigeration, air-conditioning and heat pump systems—A review , 2012, Renewable and Sustainable Energy Reviews.

[20]  Sergey Edward Lyshevski.  Control of high performance induction motors: theory and practice , 2001 .

[21]  Muhsin Kilic,et al.  Theoretical study on the effect of operating conditions on performance of absorption refrigeration system , 2007 .

[22]  M. Hosoz,et al.  Comparative performance of an automotive air conditioning system using fixed and variable capacity compressors , 2010 .

[23]  Denis Flick,et al.  Online ice crystal size measurements during sorbet freezing by means of the focused beam reflectance measurement (FBRM) technology. Influence of operating conditions , 2012 .

[24]  Kim Tiow Ooi.  Design optimization of a rolling piston compressor for refrigerators , 2005 .

[25]  Honghyun Cho,et al.  Thermodynamic analysis on the performance of a variable speed scroll compressor with refrigerant injection , 2002 .

[26]  Teuku Meurah Indra Mahlia,et al.  Chillers energy consumption, energy savings and emission analysis in an institutional buildings , 2011 .

[27]  T. Turunen-Saaresti,et al.  Optimising the refrigeration cycle with a two-stage centrifugal compressor and a flash intercooler. , 2009 .

[28]  R. Hartel.  Ice crystallization during the manufacture of ice cream , 1996 .

[29]  Julio Ariel Romero,et al.  A simplified black-box model oriented to chilled water temperature control in a variable speed vapour compression system , 2011 .