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Learning-Based Precool Algorithms for Exploiting Foodstuff as Thermal Energy Reserve

Kasper Vinther, Henrik Rasmussen, Roozbeh Izadi-Zamanabadi, Jakob Stoustrup, Andrew G. Alleyne
2015 IEEE Transactions on Control Systems Technology  
Keeping the foodstuff within temperature thresholds in supermarkets is also important due to legislative requirements.  ...  A simulation model of a supermarket refrigeration system is provided and evaluation of the precool strategies shows that negative thermal energy can be stored in foodstuff to cope with saturation.  ...  ACKNOWLEDGMENT The authors would like to thank Danfoss Refrigeration & Air Conditioning for providing valuable data from a Danish supermarket through the ESO2 research project.  ... 
doi:10.1109/tcst.2014.2328954 fatcat:fltffia5bnfgzd2ncsw2up456m

Performance evaluation of integrated trigeneration and CO2 refrigeration systems

IN. Suamir, S.A. Tassou
2013 Applied Thermal Engineering  
Sustainable Development, Prague, Czech Republic, ISBN 978-2-913149-89-2, paper no. 742, 8 pgs. refrigeration and trigeneration systems for supermarket application.  ...  Integration of CO 2 refrigeration and trigeneration systems for energy and GHG emission savings in supermarkets. Int. J. Refrigeration 35, 407-417. Suamir, IN., Tassou, S.A., 2012.  ...  For the MT system, the off-cycle defrost control was set at 4 defrost cycles per 24 hour period.  ... 
doi:10.1016/j.applthermaleng.2011.11.055 fatcat:nh2qgbfcmbbexfwwwxt222etpm

Household consumption and environmental change: Rethinking the policy problem through narratives of food practice

Jessica Paddock
2016 Journal of Consumer Culture  
Exploring narratives derived from 30 interviews with householders living in and around a UK city, this article considers the dynamics surrounding consumption, unpacking the notion that consumers act as  ...  Drawing on accounts of daily routines, the article pays close attention to the complexity of social, cultural and material factors that shape narratives of daily life, where food emerges as a core organising  ...  Funding This paper is based on research conducted as part of an ESRC funded doctorate (PTA031200600081) which was completed at Cardiff University's School of Social Sciences.  ... 
doi:10.1177/1469540515586869 fatcat:mjynloc6ovhqpgba2jq3zjqonu

Refrigeration, Air Conditioning and Heat Pumps [article]

G F Hundy A R Trott T C Welch
2016 Zenodo  
Several defrost methods are possible. Off-cycle defrost does not use any form of artificial defrosting.  ...  Particular points are flexible non-metallic rubber and plastic components such as seals. Copper cannot be used with ammonia. 5.  ...  Lower temperatures are practical as a source for heat-powered cycles. Copyright © 2016 Elsevier Ltd. http://dx.doi.org/10.1016/B978-0-08-100647-4.00038-3 All rights reserved.  ... 
doi:10.5281/zenodo.6477393 fatcat:hl2admxirffgdp25wncm4vknp4

Integrated CO2 system with HVAC and hot water for hotels: Field measurements and performance evaluation

S. Smitt, I. Tolstorebrov, A. Hafner
2020 International journal of refrigeration  
We would also like to thank Kelvin AS for in-depth system details and Scandic Hotel Hell for access to their system data.  ...  During winter operations, HX1 in the MT circuit is applied for defrosting of the evaporators through a brine circuit.  ...  A possible solution for the insufficient energy reserve in the storage is to store the water at higher temperatures.  ... 
doi:10.1016/j.ijrefrig.2020.03.021 fatcat:i5rdonxrxrhvffu6in4icyhdxa

Aquaculture in Sicily: the state of the art

Andrea Santulli, Alfonso Modica
2009 Italian Journal of Animal Science  
For these reasons salt works of Trapani and Marsala are protected by two Regional �atural Reserves. salt works of Trapani and Marsala are protected by two Regional �atural Reserves.  ...  Supermarket chains are either already or are fast becoming, the dominant force for aquaculture production also in Sicily (Modica et al., 2008) .  ... 
doi:10.4081/ijas.2009.s2.829 fatcat:axhpy4o5jbgzjcfln42d7cu4z4

Human in the loop heterogeneous modelling of thermostatically controlled loads for demand side management studies

Alexandros Kleidaras, Aristides E. Kiprakis, John S. Thompson
2018 Energy  
Some of the challenges in modelling TCLs is the various factors that affect their duty cycle, mainly human behaviour and external conditions, as well as heterogeneity of TCLs (load parameters).  ...  Based on those we found that the duty cycle of some TCLs in the population can change significantly and thus the state of the TCLs' population as a whole.  ...  A note here is that defrost heater power and cycles are ignored for simplicity.  ... 
doi:10.1016/j.energy.2017.12.120 fatcat:bg7zh5bkjzcznfzln4slw7damu

Trucking Country: Food Politics and the Transformation of Rural Life in Postwar America

Shane Hamilton
2006 Enterprise & Society  
As all reefer drivers knew, even the best-designed mechanical refrigerators needed defrosting on long trips and were prone to breakdowns.  ...  , to prove Haggard's reservations unwarranted with his first hit record as a singer, the mid-tempo " Roll, Truck, Roll," released in 1966 .  ...  As this history of the relationship between trucking, agriculture, and food politics has shown, such a result is anything but surprising.  ... 
doi:10.1017/s1467222700004705 fatcat:dbfqe5pm25a3bkssbdakzskaqa

Trucking Country: Food Politics and the Transformation of Rural Life in Postwar America

S. Hamilton
2006 Enterprise & Society  
As all reefer drivers knew, even the best-designed mechanical refrigerators needed defrosting on long trips and were prone to breakdowns.  ...  , to prove Haggard's reservations unwarranted with his first hit record as a singer, the mid-tempo " Roll, Truck, Roll," released in 1966 .  ...  As this history of the relationship between trucking, agriculture, and food politics has shown, such a result is anything but surprising.  ... 
doi:10.1093/es/khl041 fatcat:4wzayh36fzczrajxpm4qlbexsy

Montreal Protocol on Substances that Deplete the Ozone Layer

Benedick
1996 International Negotiation  
As stated, this cycle has so far provided a simple, economic, efficient and reliable way for refrigeration (this includes cycles using ammonia, carbon dioxide, fluorochemicals and hydrocarbons as refrigerants  ...  When HFCs are used as the working fluid these systems are called Organic Rankine Cycles (ORC) /Zyh03/. The Rankine cycle uses heat to evaporate the working fluid at relatively high pressure.  ...  Conservation is achieved by incorporating efforts of governments, equipment and chemical manufacturers, as well as equipment owners/operators to develop life cycle approaches aimed at reducing refrigerant  ... 
doi:10.1163/15718069620847781 fatcat:m6oleyyxubdkvoltco7irbudmy

Harvesting green miles from my roof

Jacky Bourgeois, Stefan Foell, Gerd Kortuem, Blaine A. Price, Janet van der Linden, Eiman Y. Elbanhawy, Christopher Rimmer
2015 Proceedings of the 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing - UbiComp '15  
In the summer there are more opportunities for alternative modes of nonmotorized mobility such as walking or cycling.  ...  Occasionally his wife drives the EV, particularly if she is late for work as there is reserved parking for EVs near her workplace.  ... 
doi:10.1145/2750858.2807546 dblp:conf/huc/BourgeoisFKPLER15 fatcat:oph4bkm3f5g5rg7xofcgtftoby

Designing to support Mobile Work with Mobile Devices

Christina Nielsen
2002 DAIMI Report Series  
to support it as well as a large PC monitor.  ...  More specifically, I have worked with the following three connected components: design (as process as well as tool), mobile work (specifically on process plants), and technology (mobile and stationary  ...  In gratitude to my former co-authors, I have chosen to retain the plural voice throughout the paper, as they have been key figures in the numerous discussions originating from the analysis and evaluation  ... 
doi:10.7146/dpb.v31i565.7122 fatcat:wq3z2ep7frc4zktw2btrw3pmma

Enclosed conference papers • Seyed Ehsan Shafiei, Jakob Stoustrup and Henrik Rasmussen

Seyed, Ehsan Shafiei, Andrew Alleyne
2015 Applied Thermal Engineer-ing   unpublished
The data are selected from an interval during the day time when no defrost cycle takes place.  ...  Introduction d) Spinning reserve: This term is used in [Palensky and Dietrich, 2011] for the loads that can act as virtual spinning reserve in an autonomous way (similar to primary control) 1 or in  ...  This assumption remains to be validated but it does proved some flexibility to develop the following MPC approach. Paper G robustness factor to compensate for uncertainty in the load prediction.  ... 
fatcat:klrh7nuphvhapcrlrmynwkvbem

No crumb shall be left behind. Perceptions of food waste across generations

Ioana Ioniță
2017 Journal of Comparative Research in Anthropology and Sociology  
While circumstances such as the difference in the pace of personal/professional lives, available budgets as well as other wider-scale economic factors (such as a general food shortage) are proven to dictate  ...  This paper aims to explore whether there are age-specific differences in perceptions about food waste in two groups of women living in Bucharest (born in/after 1989 vs mature in 1989), as well as the extent  ...  It's not really waste, as they are feeding animals, and animals, in their turn, feed them…so the cycle comes full circle" (respondent X).  ... 
doaj:23b6d0db0c60430c83b8dd466430b42c fatcat:3stkqya7rfhbbpnfod7mthgfm4

European and Member State Policy Responses and Economic Impacts on AgriFood Markets due to the COVID-19 Pandemic

Christine Wieck, Liesbeth Dries, Victor Martinez-Gomez, Olayinka Idowu Kareem, Bettina Rudloff, Fabio Gaetano Santeramo, Magdalena Sliwinska, Rafal Sliwinski
2021 unpublished
supermarkets, as shopping becomes more concentrated in a smaller number of physical retailers, quite often only one "big" weekly purchase in a single supermarket.  ...  Despite the defrosting of the economy and the partial removal of restrictions, the HORECA sector in Poland continues to grow at a slower pace than before the outbreak of the pandemic (data as of August  ... 
doi:10.22004/ag.econ.310188 fatcat:k6lyst7lhzfmjpp5nubszvarx4
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