Electrification of industrial processes with low-to-medium temperature heat demand: Case study of pectin production

Nasrin Arjomand Kermani, Morten Sandstrøm Petersen, Niklas Bagge Mogensen, Fabian Bühler, Esben Jacobsen , Brian Elmegaard, Fridolin Müller Holm

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Abstract

The article presents an approach for complete electrification of processes in the low-to-medium temperature manufacturing industry, for which the Danish pectin production factory CP Kelco was used as a case study.The electrification analysis of CP Kelco was carried out by first proposing eight varieties of complete electrification strategies to undergo a screening process. Among the strategies, 3 performed better and were selected for detailed analysis in terms of final energy use and economical and environmental indicators. Compared to Business as Usual (BAU), two cases with - and without Mechanical Vapour Re-compression (MVR), reduced the yearly final energy use by 50 % and 33 % with a simple payback time of 6.2 years and 7.3 years respectively. The third case, concerning grassroot implementation of MVR for evaporation and distillation, and local, off-the-shelf heat pump systems, reduced the yearly final energy use by 69 %. The implementation of the technologies in the third case was gradual implemented through 25 years with a maximum payback time on sub-investments of 3.9 years.

Finally, the article presents the main bottlenecks for electrification learned from the CP Kelco case. The main approach proposed in the general electrification strategy was: (i) replace inefficient technologies with alternative technologies for energy savings, (ii) identify utilisation of heat pumps, and (iii) identify alternative technologies for remaining central utility demands.
Original languageEnglish
Title of host publicationProceedings of ECOS 2022 - The 35th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems 2022
Number of pages12
PublisherECOS
Publication date2022
Publication statusPublished - 2022
Event35th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
- DGI-Byen, Copenhagen, Denmark
Duration: 3 Jul 20227 Jul 2022
Conference number: 35
https://ecos2022.dtu.dk/

Conference

Conference35th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
Number35
LocationDGI-Byen
Country/TerritoryDenmark
CityCopenhagen
Period03/07/202207/07/2022
Internet address

Keywords

  • Energy efficiency
  • Decarbonisation
  • Electrification
  • Process integration
  • Heat pump

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