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Conceptual study of combined cycles with thermally coupled micro gas turbines and high temperature heat pumps for trigeneration

Gollasch, Jens and Agelidou, Eleni and Henke, Martin and Stathopoulos, Panagiotis (2022) Conceptual study of combined cycles with thermally coupled micro gas turbines and high temperature heat pumps for trigeneration. In: ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition, GT 2022, 4. American Society of Mechanical Engineers. ASME Turbo Expo 2022, 2022-06-13 - 2022-06-17, Rotterdam. doi: 10.1115/GT2022-81959. ISBN 978-079188612-0.

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Official URL: https://asmedigitalcollection.asme.org/GT/GT2022/volume/86014

Abstract

In the context of climate change low-emission technologies need to be developed to cover the high thermal energy demand of the industrial sector. Because of the ongoing transition to renewable energy sources and their limited availability, combustion-based technologies will be required to support this transition. This paper presents fundamental, application-independent conceptual studies of thermally coupled micro gas turbines (MGT) and high temperature heat pumps (HTHP). The MGT provides electrical power to drive the compressor of the heat pump, while the heat of the exhaust flow is used as a heat source. This self-sufficient system is expected to provide high thermal output at temperature levels beyond available heat pump technology. In addition, low temperatures can be achieved for cooling processes. Within the scope of this study, several process architectures with different integration of heat sources are analyzed by performing thermodynamic cycle simulations. The results demonstrate attainable temperature levels and it can be shown that heat can be provided at temperatures above 300 °C. Cooling processes can be effectively integrated in some of the investigated cycle configurations so that temperatures below -30 °C can be reached. Thermal coupling enables high utilization rates of primary energy and values over 100% are possible. The present work provides the basis for future studies, which will take the economic feasibility in comparison with competing technologies into consideration.

Item URL in elib:https://elib.dlr.de/189202/
Document Type:Conference or Workshop Item (Speech)
Title:Conceptual study of combined cycles with thermally coupled micro gas turbines and high temperature heat pumps for trigeneration
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Gollasch, JensUNSPECIFIEDhttps://orcid.org/0000-0002-9825-4599UNSPECIFIED
Agelidou, EleniUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Henke, MartinUNSPECIFIEDhttps://orcid.org/0000-0002-3191-0168UNSPECIFIED
Stathopoulos, PanagiotisUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:2022
Journal or Publication Title:ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition, GT 2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:4
DOI:10.1115/GT2022-81959
Publisher:American Society of Mechanical Engineers
Series Name:Proceedings of the ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. Volume 4: Cycle Innovations
ISBN:978-079188612-0
Status:Published
Keywords:High Temperature Heat Pump, Brayton Cycle, Micro gas Turbine
Event Title:ASME Turbo Expo 2022
Event Location:Rotterdam
Event Type:international Conference
Event Start Date:13 June 2022
Event End Date:17 June 2022
Organizer:ASME
HGF - Research field:Energy
HGF - Program:Materials and Technologies for the Energy Transition
HGF - Program Themes:High-Temperature Thermal Technologies
DLR - Research area:Energy
DLR - Program:E SP - Energy Storage
DLR - Research theme (Project):E - Low-Carbon Industrial Processes, E - Combustion and Power Plant Systems
Location: Cottbus
Institutes and Institutions:Institute of Low-Carbon Industrial Processes > Simulation and Virtual Design
Institute of Combustion Technology > Gas Turbines
Deposited By: Gollasch, Jens Oliver
Deposited On:28 Nov 2022 09:27
Last Modified:24 Apr 2024 20:50

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