Year: 2025
Type: article
Abstract: The demand for process heat significantly contributes to energy consumption, and due to the typically fossil‐based heat generation, it has a substantial contribution to Germany's greenhouse gas emissions. In order to decarbonize this sector, heat pumps generating process heat, particularly steam, are essential. This work presents a heat pump test bench using the natural refrigerant n ‐butane (R‐600). The heat pump can provide temperatures of up to 120 °C, with capacities reaching up to 125 kW th depending on the source temperature. The results are in line with those from other test benches regarding the coefficient of performance (COP). Further, the operation in three different modes is tested and evaluated: pressurized water heating (PWH), wet steam generation (WSG), and dry steam generation (DSG). The heat transfer shows a slight increase when producing steam.
Source: Chemie Ingenieur Technik
DOI: 10.1002/cite.70046
Authors: Sebastian Benkert, Lukas Joos, Ursula Wittstadt, Torsten Will, Andreas Burger, Lena Schnabel, Stefan Henninger, Thorsten Klahm
Institution: Fraunhofer Institute for Solar Energy Systems
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,030
OpenAlex ID: W4415960973