Approach to thermal energy systems
Modeling specific technologies:
- Overview of technologies:
 Power-to-heat for renewable energy integration: A review of technologies,
modeling approaches, and flexibility potentials, Andreas Bloess, Wolf-Peter Schill, Alexander Zerrahn
Oemof uses the approach of Mollenhauer2016
Backpressure, Extraction Turbine, minimum load, non-constant efficiency, flue gas losses, cooling water
 E. Mollenhauer, A. Christidis, and G. Tsatsaronis, “Evaluation of an energy- and exergy-based generic modeling approach of combined heat and power plants,” Int. J. Energy Environ. Eng., vol. 7, no. 2, pp. 167–176, 2016.
Bryn Pickering pointed at this paper:
 D. Faille, C. Mondon, and B. Al-Nasrawi, “mCHP optimization by dynamic programming and mixed integer linear programming,” Proc. 14th …, pp. 572–577, 2007.
 Dispa-SET uses this approach:
Kavvadias, K., Hidalgo Gonzalez, I., Zucker, A. and Quoilin, S., Integrated modelling of future EU power and heat systems: The Dispa-SET v2.2 open-source model, JRC Technical Report, EU Commission, 2018
relation between temperature and slope
JP J. Navarro, KC. Kavvadias, S Quoilin, A Zucker, The joint effect of centralised cogeneration plants and thermal storage on the efficiency and cost of the power system, Energy, Volume 149, 2018, Pages 535-549, https://doi.org/10.1016/j.energy.2018.02.025.
Features: Temperature dependent COP
Questions: How do people handle the distinction between air, ground and water HP?
Also on larger level temperature might be important to consider and make a difference.
 I. Staffell, D. Brett, N. Brandon, and A. Hawkes, “A review of domestic heat pumps,” Energy Environ. Sci., vol. 5, no. 11, p. 9291, 2012.
 Integration of large-scale heat pumps in the district heating systems of Greater Copenhagen. Bjarne Bach, Jesper Werling, Torben Ommen, Marie Münster, Juan M. Morales, Brian Elmegaard, Energy, Volume 107, 2016, Pages 321-334, ISSN 0360-5442, https://doi.org/10.1016/j.energy.2016.04.029.
-> “No significant impact was found when comparing fixed and varying operation characteristics of the HP.”
Commonly used are simple capacity models.
Are there any more detailed stratified models known?
 T. Schütz, R. Streblow, and D. Müller, “A comparison of thermal energy storage models for building energy system optimization,” Energy Build., vol. 93, pp. 23–31, 2015.
M.-S. Shin, H.-S. Kim, D.-S. Jang, S.-N. Lee, Y.-S. Lee, and H.-G. Yoon, “Numerical and experimental study on the design of a stratified thermal storage system,” Applied Thermal Engineering , vol. 24, no. 1, pp. 17–27, 2004.
E. M. Kleinbach, W. A. Beckman, and S. A. Klein, “Performance study of one-dimensional models for stratified thermal storage tanks,” Solar energy , vol. 50, no. 2, pp. 155–166, 1993.
A. M. Hafez, M. A. Kassem, and O. A. Huzayyin, “Smart adaptive model for dynamic simulation of horizontal thermally stratified storage tanks,” Energy , vol. 142, pp. 782–792, 2018.
Different modelling approaches (Non-linear):
Hot water tanks: How to select the optimal modelling approach?
O Dumont, C Carmo, R Dickes, E Georges, S Quoilin, V Lemort
- District heating networks
Accounting for thermal losses and pumping power
How does the behaviour depend on the temperature levels?
Models that determine steady state or dynamic behaviour (alternatives to TRNSYS etc.)
Wiki for approaches with several detail levels --> could be hosted on oemof_heat project github site
detailled process simulation
shortcut model (non linear, but not as detailled as the detailled simulation)
Approaches for nonlinear optimsation