Lessons learnt during the design, construction and start-up phase of a molten salt testing facility

Rodríguez-García, Margarita M.; Herrador-Moreno, Miguel; Zarza, Eduardo

doi:10.1016/j.applthermaleng.2013.09.040

Cited by 30 publications

(10 citation statements)

References 5 publications

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“…The most common causes for deterioration in performance of F-shell heat exchangers are thermal leakage or physical leakage due to the longitudinal baffle (Mukherjee, 2004) together with fouling, corrosion, design errors and fabrication issues. Additionally, two potential issues were identified with this heat exchanger, as presented in Rodríguez-García et al (2014). One of them is the bypass of molten salt through the drainage channels (see figure 3) and the other one is the nitrogen accumulation inside the shell due to the heat exchanger tilt angle.…”

Section: Performance Evaluation Simulationsmentioning

confidence: 99%

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Object-Oriented Modeling of a Multi-Pass Shell-and-Tube Heat Exchanger and its Application to Performance Evaluation∗∗This research has been funded by the EU 7thFramework Programme (Theme Energy 2012.2.5.2) under grant agreement 308912 -HYSOL project -Innovative Configuration of a Fully Renewable Hybrid CSP Plant and the Spanish Ministry of Economy and Competitiveness through ERDF and PLAN E funds (C.N. SolarNOVA ICT-CEPU 2009-02).

et al. 2015

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Molten salt thermal storage systems are the keystone of the dispatchability of demand in solar thermal power plants and many commercial plants use this technology. Nevertheless, there are still open questions related to long-term durability and reliability of components. During experimental campaigns in the CIEMAT-PSA molten salt testing facility, a performance detriment in a multi-pass shell-and-tube heat exchanger was noticed. For this reason and as a tool for analysis and diagnosis, an object-oriented dynamic model is being developed. This paper describes the testing facility and the thermal oil -molten salt heat exchanger particularly, the design of the Modelica model and compares simulation results against manufacturer calculations and experimental data in steady-state operation conditions and at transients in order to evaluate the heat exchanger performance.

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Section: Performance Evaluation Simulationsmentioning

confidence: 99%

“…See figure 1 to match numbers with components. For further details consult Rodríguez-García and Zarza(2011)andRodríguez-García et al (2014).…”

mentioning

confidence: 99%

Object-Oriented Modeling of a Multi-Pass Shell-and-Tube Heat Exchanger and its Application to Performance Evaluation∗∗This research has been funded by the EU 7thFramework Programme (Theme Energy 2012.2.5.2) under grant agreement 308912 -HYSOL project -Innovative Configuration of a Fully Renewable Hybrid CSP Plant and the Spanish Ministry of Economy and Competitiveness through ERDF and PLAN E funds (C.N. SolarNOVA ICT-CEPU 2009-02).

et al. 2015

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“…For further details about the facility and operating modes consult Rodríguez-García and Zarza (2011) and Rodríguez-García et al (2014).…”

Section: Operating Modesmentioning

confidence: 99%

“…The most common causes for deterioration in performance of F-shell heat exchangers are thermal leakage or physical leakage due to the longitudinal baffle (Mukherjee, 2004) together with fouling, corrosion, design errors and fabrication issues. Additionally, two potential issues were identified with this heat exchanger, as presented in Rodríguez-García et al (2014). One of them is the bypass of molten salt through the drainage channels and the other one is the nitrogen accumulation inside the shell due to the heat exchanger tilt angle.…”

Section: Experimental Calibration Of Heatmentioning

confidence: 99%

Experimental Calibration of Heat Transfer and Thermal Losses in a Shell-and-Tube Heat Exchanger

Bonilla

Calle

Rodríguez-García

et al. 2015

Linköping Electronic Conference Proceedings

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Many commercial solar thermal power plants rely on thermal storage systems in order to provide a stable and reliable power supply. The heat exchanger control strategies, to charge and discharge the thermal storage system, strongly affect the performance of the power plant. With the aim of developing advanced control strategies, a dynamic model of a shell-and-tube heat exchanger is being developed. This heat exchanger belongs to the CIEMAT-PSA molten salt testing facility. The goal of this facility is to study thermal storage systems in solar thermal power plants. During experimental campaigns performance losses with respect to design performance were noticed in the heat exchanger. Therefore and in order to develop an accurate heat exchanger model, thermal losses as well as heat transfer correlations on both fluid sides have been calibrated against experimental data.

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“…FIGURE 1. Two-tank molten salt pilot plant; left Abengoa (Seville) and right University of Lleida (Lleida) [9] In 2010, CIEMAT (Spain) signed a turnkey contract to have an experimental plant for thermal storage using molten salts at its PSA (Plataforma Solar de Almeria) facilities [10]. This plant was designed to evaluate components, instrumentation and operation strategies and to give support to the industry in the qualification and evaluation of components.…”

Section: Introductionmentioning

confidence: 99%

Dynamic corrosion tests comparison: Dynamic reactor vs high temperature pilot plant scale setup for Chilean LiNO3 containing molten salt

Fernández

Henríquez

Mallco

et al. 2018

AIP Conference Proceedings

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Dynamic corrosion tests have been compared in a novel ternary molten salt containing LiNO3 between a dynamic reactor (using a mechanical stirrer) and a molten salt pilot plant (1 Ton of capacity). Results obtained showed a higher increase in corrosion rate in flow conditions compared with the conventional static conditions and the stirrer reactor.SolarPACES 2017 AIP Conf. Proc. 2033, 090009-1-090009-6; https://doi.

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Lessons learnt during the design, construction and start-up phase of a molten salt testing facility

Cited by 30 publications

References 5 publications

Experimental Calibration of Heat Transfer and Thermal Losses in a Shell-and-Tube Heat Exchanger

Dynamic corrosion tests comparison: Dynamic reactor vs high temperature pilot plant scale setup for Chilean LiNO3 containing molten salt

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