Applications RA4

In Applications, we will:

  • Study applications of technology concepts that can lead to a 20-30 % reduction in specific energy use and/or minimum 10 % in CO2 emissions.
  • Study applications that will integrate basic research and concepts from the Research Areas (RAs) Methodologies, Components and Cycles into specific industry settings to generate more energy-efficient processes and improved heat capture and utilization concepts.
  • Investigate the exploitable potential in surplus heat found in partner industries. We will also look into the next generation surplus heat capture and utilization.
  • Using industrial examples, this RA will also develop further the potential of "green" industry clusters and local thermal grids on a Nordic scale. More specific the RA will identify potential and concepts for the possible use of process gas and develop a metal furnace concept with at least 20 % lower total energy use.

Potential innovations:

  • Improved understanding of the internal energy distribution inside a process and understanding how to reduce losses.
  • Business models for sharing energy and materials resources in closely located industries.
  • Methodology for optimizing cycle integration in plants and assessing the costs and benefits.
  • Self-cleaning dirty gas heat exchanger concepts in collaboration with SFI Metal Production and bring the technology further towards applications in heat-to-power conversion.

RA 4 Applications consists of the following Work Packages (WP)

RA4 Applications Aud Nina Wærnes SINTEF Industry
WP4.1 Process improvement Bernd Wittgens SINTEF Industry
WP4.2 Surplus heat recovery Vidar T. Skjervold SINTEF Energy Research
WP4.3 Industry clusters and technology integration Kristian Einarsrud  NTNU



2017 Results

Process improvements:

A comprehensive literature review has been made on finalized and on-going projects within The Norwegian Ferroalloy Producers Research Association (FFF) with respect to energy recovery. Processes with high potential for energy recovery (in terms of energy quality and quantity) are identified and selected for further analysis together with the industry. Recycling of flue gas into ferroalloy furnaces is the first activity.

A report/paper on the technical and economical feasibility of simultaneously energy recovery and emission reduction has been made by linking activities within EnergiX-project "SCORE" to HighEFF. Two papers are
prepared: 1) Experimental verification and operation presented at Infacon 2018, 2) a technical and economical evaluation submitted to SPIS/Flogen 2018.

Surplus heat recovery:

The framework for the database of thermodynamic potential in surplus heat sources has been developed, with extended scope compared to the initial idea. Work on data acquisition has begun for the metals and materials sector. So far, data from Alcoa, Hydro, Wacker Chemical, Eramet, and Elkem have been received.

The initial activity on "surplus heat database" has been tentatively extended to "Energy flow database", to also include energy and material input streams for each subprocess in the industry plants. This should enable the database to be useful for various activities in many RA's and WP's in HighEFF. Completed entries for individual plants in the "Energy flow database" has been presented as process flow diagrams showing energy and materials flows. Several site visits were arranged to observe authentic plant scenarios and conditions, and scrutinize the energy flow data on-site.

Industry Clusters and Technology Integration:

A Modelica-based modelling and optimization framework for coordinated exchange of surplus heat in industry clusters has been developed. Preliminary results have illustrated both advantages and challenges of using optimization-based control and intermediate storage as a means of leveraging varying surplus-heat streams and demands to improve utilization of surplus heat in industry clusters.

Aud Nina Wærnes

Senior Business Developer
Aud Nina Wærnes
Senior Business Developer
930 59 428
Metal Production and Processing