SOKI Project

The SOKI Project – Super Optimized Carton Freezer

The Soki-project is a project by Danish Technological institute investigating the optimization of blast freezing tunnels and ways to improve the freezing process. The project findings show huge energy savings to be found with a minimal effort.

The project abstract sums up the report:


A large amount of meat is frozen in batches in blast freezing tunnels. These tunnels are designed according to
old rules of thumb and they are in most cases running a constant air flow.

By optimizing the running conditions of the tunnel, extensive energy savings can be obtained. A Danish ELFORSK research project regarding the energy saving potential of industrial blast freezing tunnels verify these savings.

The project covers the testing of an industrial tunnel combined with laboratory tests, models, and CFD calculations.

This paper presents the results of the project. The focus is on the possibilities to either optimize the efficiency
of the tunnel or to reduce the freezing times. Optimization is achieved through modeling and testing. The
optimization of the fans, the air flow through the tunnel, and the control strategy are investigated.

Project findings and results – an overview of optimized blast freezing

The findings from the report have been made into a poster outlining the most important results. We will be happy to share this poster and the results with you and help you save energy on your freezing process.

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