Electricity Generation from Low and Medium Temperature Industrial Excess Heat in the Kraft Pulp and Paper Industry

Igor Cruz, Magnus Wallén, Elin Svensson and Simon Harvey
Additional contact information
Igor Cruz: Energy Systems, Department of Management and Engineering, Linköping University, SE-581 83 Linköping, Sweden
Magnus Wallén: Energy Systems, Department of Management and Engineering, Linköping University, SE-581 83 Linköping, Sweden
Elin Svensson: CIT Industriell Energi AB, Sven Hultins Plats 1, SE-412 58 Gothenburg, Sweden
Simon Harvey: Energy Technology, Department of Space, Earth and Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden

Energies, 2021, vol. 14, issue 24, 1-27

Abstract: The recovery and utilisation of industrial excess heat has been identified as an important contribution for energy efficiency by reducing primary energy demand. Previous works, based on top-down studies for a few sectors, or regional case studies estimated the overall availability of industrial excess heat. A more detailed analysis is required to allow the estimation of potentials for specific heat recovery technologies, particularly regarding excess heat temperature profiles. This work combines process integration methods and regression analysis to obtain cogeneration targets, detailed excess heat temperature profiles and estimations of electricity generation potentials from low and medium temperature excess heat. The work is based on the use of excess heat temperature (XHT) signatures for individual sites and regression analysis using publicly available data, obtaining estimations of the technical potential for electricity generation from low and medium temperature excess heat (60–140 °C) for the whole Swedish kraft pulp and paper industry. The results show a technical potential to increase the electricity production at kraft mills in Sweden by 10 to 13%, depending on the level of process integration considered, and a lower availability of excess heat than previously estimated in studies for the sector. The approach used could be adapted and applied in other sectors and regions, increasing the level of detail at which industrial excess heat estimations are obtained when compared to previous studies.

Keywords: excess heat; waste heat; kraft mill; pulp and paper; electricity generation; heat integration; organic Rankine cycle (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/24/8499/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/24/8499/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:24:p:8499-:d:704312

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().