Next Article in Journal
Experimental Study on Hydrate Formation and Flow Characteristics with High Water Cuts
Previous Article in Journal
Optimal Allocation of Intermittent Distributed Generation under Active Management
Open AccessArticle

Simulation and Exergy Analysis of Energy Conversion Processes Using a Free and Open-Source Framework—Python-Based Object-Oriented Programming for Gas- and Steam Turbine Cycles

Technische Universität Berlin, Institute for Energy Engineering, Marchstraße 18, 10587 Berlin, Germany
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Energies 2018, 11(10), 2609; https://doi.org/10.3390/en11102609
Received: 23 August 2018 / Revised: 17 September 2018 / Accepted: 18 September 2018 / Published: 30 September 2018
State-of-the-art thermodynamic simulation of energy conversion processes requires proprietary software. This article is an attempt to refute this statement. Based on object-oriented programming a simulation and exergy analysis of a combined cycle gas turbine is carried out in a free and open-source framework. Relevant basics of a thermodynamic analysis with exergy-based methods and necessary fluid property models are explained. Thermodynamic models describe the component groups of a combined heat and power system. The procedure to transform a physical model into a Python-based simulation program is shown. The article contains a solving algorithm for a precise gas turbine model with sophisticated equations of state. As an example, a system analysis of a combined cycle gas turbine with district heating is presented. Herein, the gas turbine model is validated based on literature data. The exergy analysis identifies the thermodynamic inefficiencies. The results are graphically presented in a Grassmann chart. With a sensitivity analysis a thermodynamic optimization of the district heating system is discussed. Using the exergy destruction rate in heating condensers or the overall efficiency as the objective function yields to different results. View Full-Text
Keywords: simulation; object-oriented programming; energy conversion process; combined cycle gas turbine; combined heat and power; exergy analysis; simultaneous modular approach simulation; object-oriented programming; energy conversion process; combined cycle gas turbine; combined heat and power; exergy analysis; simultaneous modular approach
Show Figures

Figure 1

MDPI and ACS Style

Zoder, M.; Balke, J.; Hofmann, M.; Tsatsaronis, G. Simulation and Exergy Analysis of Energy Conversion Processes Using a Free and Open-Source Framework—Python-Based Object-Oriented Programming for Gas- and Steam Turbine Cycles. Energies 2018, 11, 2609.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop