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Gewählte Master / Diploma Thesis:

Thomas Detzlhofer (2018): ECONOMIC ANALYSES OF A HIGH TEMPERATURE HEAT PUMP IN AN AUSTRIAN PULP AND PAPER COMPANY.
Master / Diploma Thesis - Institut für Verfahrens- und Energietechnik (IVET), BOKU-Universität für Bodenkultur, pp 76. UB BOKU obvsg FullText

Data Source: ZID Abstracts
Abstract:
Based on a specific drying process in an Austrian paper company, the present work examines how a HTHP (high temperature heat pump) with a coefficient of performance (COP) of 4 performs economically besides an on-site operating gas turbine and steam combined cycle (GT-CC). The economic comparison is executed on the basis of spot market prices and industrial gas prices over a period from 2004-2017. The results show that HTHP can have cost advantage over GT-CC, depending on the energy price constellation. In recent years the HTHP was the preferable heat supply system, since CoH (costs of heat) stayed significantly below CoH for GT-CC. Due to volatile character of spot market prices though, CoH can vary so that the preferable heat supply system can change hourly. In a coupled driving mode these price fluctuations can be used by the operator to switch between the heat supply modes in order to obtain savings. Under consideration of investment costs between 250 EUR/MWh and 1 000 EUR/MWh and a share of production up to 90% in a coupled driving mode, payback times below 6 years are possible. The comparison of the CO2-footprint for both heat supply systems shows that carbon dioxide savings are possible, if the CO2 emission footprint of the used electricity for operating the HTHP is less than 480kg/MWh. With the present electricity mix in Austria, savings up to 59 000 tons of CO2 would be possible in the considered paper company. This is a strong motivation to intensify R&D in the technology of HTHP in order to achieve carbon dioxide reduction in industry and reach EU climate action targets.

Beurteilende(r): Pröll Tobias
1.Mitwirkender: Wolf Magdalena

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