Performance Monitoring of an 800m2 Solar Thermal Plant with Evacuated Flat Plate Collectors coupled to a DHN

Duret, Alexis; Jobard, Xavier; Pauletta, Stefano; Demonchy, Gauthier

doi:10.18086/eurosun.2022.04.02

Proceedings of EuroSun 2022 - ISES and IEA SHC International Conference on Solar Energy for Buildings and Industry 2022

DOI: 10.18086/eurosun.2022.04.02

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Performance Monitoring of an 800m2 Solar Thermal Plant with Evacuated Flat Plate Collectors coupled to a DHN

Alexis Duret,

Xavier Jobard,

Stefano Pauletta

et al.

Abstract: The performances of a 800 m 2 solar thermal plant coupled to a large District Heating in Geneva has been monitored for more than one year. The solar field is composed of 400 high performance evacuated flat plate collectors manufactured by TVP Solar. It has an average operating temperature above 80°C. This plant has been equipped with sensors to monitor and follow its performances over time. In 2021, the solar plant has injected 536 MWh in the DHN which corresponds to a specific yearly productivity of 684 kWh/m… Show more

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2024

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Cited by 2 publications

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Dynamic simulation and life cycle analysis of a 784m2 solar thermal plant with evacuated flat plate collectors coupled to a district heating network

Duret,

Jobard,

Pauletta

et al. 2024

Therm sci

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One of the first solar plants in Switzerland to be integrated to a large urban district heating network has been monitored since its commissioning in 2021. Located in Geneva, this 784 m? solar field, equipped with innovative evacuated flat plate collectors, has confirmed the potential of vacuum solar collectors for industrial and district heating network applications. In 2022, the plant achieved a specific annual production of 684 kWh per m?, corresponding to a 45% yearly average efficiency. A dynamic numerical model, developed under TRNSYS and validated against measurement data, allowed investigating the impact of several optimization strategies together with their economic viability. Additionally, a life cycle assessment and a life cycle cost analysis were conducted, confirming that incorporating solar heat into district heating network significantly reduces GHG emissions and non-renewable energy consumption at an energy production cost which is competitive with that of current district heating networks. These findings underscore the potential of solar thermal technology in decarbonating the thermal energy sector, notwithstanding its limited role in the current energy production arena.

show abstract

Dynamic simulation and life cycle analysis of a 784m2 solar thermal plant with evacuated flat plate collectors coupled to a district heating network

Duret,

Jobard,

Pauletta

et al. 2024

Therm sci

View full text Add to dashboard Cite

show abstract

SunPeek Open-Source Software for ISO 24194 Performance Assessment and Monitoring of Large-Scale Solar Thermal Plants

Tschopp,

Ohnewein,

Hamilton-Jones

et al. 2024

Int Sustain Ener Conf Proc

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ISO 24194:2022, the first standard specifically designed to assess the operational performance of solar thermal collector arrays, is likely to have substantial impact on the entire solar thermal industry. This standard introduces the Power Check, a method that can be used for monitoring ongoing plant operation and for checking performance guarantees. However, its practical use is presently limited, as initial applications indicate a need for clarification, and it exists as a mere paper description, rendering it less accessible for plant designers and operators. Furthermore, any implementation necessitates practical decisions regarding data handling and algorithm implementation. Closed-source implementations, lacking a traceable and transparent framework, could lead to inconsistent results. To address these issues, this paper introduces SunPeek, an open-source software that provides a reference implementation of the ISO 24194 Power Check. SunPeek is freely accessible for both scientific and commercial purposes. This paper also discusses existing limitations of ISO 24194 and showcases five examples of SunPeek applied to real-life solar thermal plants. This underscores potential practical challenges, such as handling stagnation events, and highlights methodological progress, such as improved data filtering for performance analyses. The findings and applications indicate SunPeek’s usability and the high potential for ISO 24194-based performance monitoring of solar thermal plants.

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Performance Monitoring of an 800m2 Solar Thermal Plant with Evacuated Flat Plate Collectors coupled to a DHN

Cited by 2 publications

References 7 publications

Dynamic simulation and life cycle analysis of a 784m2 solar thermal plant with evacuated flat plate collectors coupled to a district heating network

Dynamic simulation and life cycle analysis of a 784m2 solar thermal plant with evacuated flat plate collectors coupled to a district heating network

SunPeek Open-Source Software for ISO 24194 Performance Assessment and Monitoring of Large-Scale Solar Thermal Plants

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