SCIENTIFIC PUBLICATIONS

1. OPEN ACCESS: Ahrens Ulrich Marcel. (2018, July 10). Experimental and numerical analysis of a two-stage turbo compressor system for industrial superheated steam drying 

The aim of this master's thesis was the experimental analysis of the turbo compressortechnology performance as well as the development of a numerical turbo compressormodel and the evaluation of the two-stage turbo compressor performance.To analyse the performance of the turbo compressors technology, experiments were performed at the test facility developed by SINTEF Energy Research. A suitable numerical turbo compressor model was identified and validated for the development of a system model. The achieved results and experiences were used for the evaluation of the two-stage turbo compressor performance. 

The experiments demonstrated a stable operation of the two-stage turbo compressor system. The compressor maps have been created which allow an analysis of the performance and operating range of the turbo compressor. The numerical models were able to reproduce the results in a good approximation and allowed the estimation of further operating points. During this elaboration, the system was able to compress superheated steam from atmospheric pressure to above 3.0 bar, where it can be condensed at a saturation temperature of 133.5 °C. The COP of the performed investigation was 5.9, when the achievable condensation energy is compared to the total amount of energy supplied to the system.

 Find the publication on Zenodo - click here. 

 

NON-SCIENTIFIC PUBLICATIONS

Non-scientific publications featuring DryFiciency project are presented below. They inform interested stakeholders about large scale applications of heat pumps, technologies for the proccessing industry more to come in the future. 

 

1. LARGE SCALE HEAT PUMPS IN EUROPE

This brochure gives insight about 16 large heat pump applications including one demo site from DryFiciency project, Agrana drying unit. 

Click here to view and download 

This brochure is an initiative of the EHPA's Industrial and Commercial Heat Pump Working Group (ICHP)

 

 

 

 

 

2. SPIRE PROJECTS - POWER TO YOUR KNOW-HOW, 2016 

Click here to view and download 

Copyright: A.SPIRE

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