Imperial College London
Alternate

ProfessorChristosMarkides

Faculty of Engineering, Department of Chemical Engineering

Professor of Clean Energy Technologies
 
 
 
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Contact

 

+44 (0)20 7594 1601c.markides Website

 
 
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Location

 

404ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Olympios:2022:10.1016/j.enconman.2022.116426,
author = {Olympios, AV and Sapin, P and Freeman, J and Olkis, C and Markides, CN},
doi = {10.1016/j.enconman.2022.116426},
journal = {Energy Conversion and Management},
pages = {1--23},
title = {Operational optimisation of an air-source heat pump system with thermal energy storage for domestic applications},
url = {http://dx.doi.org/10.1016/j.enconman.2022.116426},
volume = {273},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Electricity-driven air-source heat pumps are a promising element of the transition to lower-carbon energy systems. In this work, operational optimisation is performed of an air-source heat pump system aimed at providing space heating and domestic hot water to a single-family dwelling. The novelty of this work lies in the development of comprehensive thermal network models of two different system configurations: (i) a standard configuration of a heat pump system coupled to a hot-water cylinder; and (ii) an advanced configuration of a heat pump system coupled to two phase-change material thermal stores. Three different objective functions (operational cost, coefficient of performance, and self-sufficiency from a locally installed solar-PV system) are investigated and the proposed mixed-integer, non-linear optimisation problems are solved by employing a genetic algorithm. Simulations are conducted at two carefully selected European locations with different climate characteristics (Oban in Scotland, UK, and Munich in Southern Germany) over four seasons represented by typical weather weeks. Comparison of key results against a conventional operating strategy reveals that the use of smart operational strategies for the operation of the heat pump and thermal stores can lead to considerable economic savings for consumers and significant performance improvements over the system lifetime. Optimising the operation of the standard configuration leads to average annual cost savings of up to 22% and 20% at the UK and German locations, respectively. The optimisation of the advanced configuration with the two PCM stores shows even higher potential for economic savings – up to 39% and 29% per year at the respective locations – as this configuration allows for greater operational flexibility, and high-electricity-price periods can be almost completely avoided. Depending on the objective function, configuration and location, the system seasonal coefficient of performance va
AU  - Olympios,AV
AU  - Sapin,P
AU  - Freeman,J
AU  - Olkis,C
AU  - Markides,CN
DO  - 10.1016/j.enconman.2022.116426
EP  - 23
PY  - 2022///
SN  - 0196-8904
SP  - 1
TI  - Operational optimisation of an air-source heat pump system with thermal energy storage for domestic applications
T2  - Energy Conversion and Management
UR  - http://dx.doi.org/10.1016/j.enconman.2022.116426
UR  - https://www.sciencedirect.com/science/article/pii/S0196890422012043?via%3Dihub
UR  - http://hdl.handle.net/10044/1/100867
VL  - 273
ER  -
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