Dynamic Modeling and Sensitivity Analysis of a Stratified Heat Storage Coupled with a Heat Pump and an Organic Rankine Cycle

Scharrer D, Pruckner M, Bazan P, German R (2021)

Publication Language: English

Publication Type: Conference contribution, Conference Contribution

Publication year: 2021

Conference Proceedings Title: Proceedings of the 2021 Winter Simulation Conference

Event location: Phoenix, AZ / Virtual US

DOI: 10.1109/wsc52266.2021.9715345

Abstract

The storage of electrical energy is becoming increasingly important to satisfy the demand through renewable
energy sources. In this paper, a continuous and discrete simulation of a pumped thermal energy storage
system are compared with respect to their computational time and accuracy. The stratified heat storage
is modelled using spatial one-dimensional considerations and abstractions. Results show, that the discrete
simulation with fixed time step is about 60 times faster and has neglectable deviation in the resolution of
heat loss computations and accuracy, compared to the continuous System Dynamics model. The conducted
sensitivity analysis shows, that parameters of the storage fluid have little influence on the overall result.
The determining factor regarding losses in the storage and possible savings for users, is the insulation of
the thermal storage. Increasing the number of temperature layers considered in the simulation shows so
called deadlayers, which block the storage if not removed during operation.

Authors with CRIS profile

Daniel Scharrer Computer Science 7 (Computer Networks and Communication Systems) Marco Pruckner Juniorprofessur für Energieinformatik Peter Bazan Computer Science 7 (Computer Networks and Communication Systems) Reinhard German Computer Science 7 (Computer Networks and Communication Systems)

Related research project(s)

Dynamic Simulation of Energy Flows and Storage of Waste Heat from Data Centers and of the Integration of Large Storage Systems in Local Heating Networks Energie Campus Nürnberg 2 Jan. 1, 2017 - Dec. 31, 2019

How to cite

APA:

Scharrer, D., Pruckner, M., Bazan, P., & German, R. (2021). Dynamic Modeling and Sensitivity Analysis of a Stratified Heat Storage Coupled with a Heat Pump and an Organic Rankine Cycle. In Proceedings of the 2021 Winter Simulation Conference. Phoenix, AZ / Virtual, US.

MLA:

Scharrer, Daniel, et al. "Dynamic Modeling and Sensitivity Analysis of a Stratified Heat Storage Coupled with a Heat Pump and an Organic Rankine Cycle." Proceedings of the Winter Simulation Conference, Phoenix, AZ / Virtual 2021.

BibTeX: Download