Balancing heat transfer fluid flow in solar fields

Abutayeh, Mohammad; Alazzam, Anas; El‐Khasawneh, Bashar

doi:10.1016/j.solener.2014.03.025

Cited by 29 publications

(13 citation statements)

References 7 publications

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“…A virtual solar field (VSF), which was developed by the German Aerospace Centre (DLR) [14], applied a thermal hydraulic model similar to [3] to simulate the behavior of the whole PTSF, and the operating data from Andasol-3 validated the model. Ma et al [15] revealed the relationship between the flow distribution and flow resistance of the PTSF, and then verified the method proposed in [13] based on a thermal hydraulic dynamic model (THDM) and tested data obtained from a pilot plant.…”

Section: Introductionmentioning

confidence: 91%

“…The symmetrical and uniform flow distribution of the PTSF was assumed to simulate the PTSTPP in the System Advisor Model (SAM), which was developed by the National Renewable Energy Laboratory (NREL) and Sandia National Laboratory [12]. Abutayeh et al [13] spelled out the presence of unbalanced flow distribution in the PTSF and proposed a method to amend it. Giostri [3] studied the behavior of the PTSF under a variety of thermal transients based on a thermal hydraulic model, which contained a thermal dynamic part and a hydraulic steady pipe network part.…”

Section: Introductionmentioning

confidence: 99%

“…[19] pointed out that the header control valves (HCVs) are used to control the flow rate and outlet temperature of the subfield in a real operated PTSTPP. [13] indicated that the automatic balancing valves can be used for PTSF control when the spatial variation of solar irradiance is an issue. Refs.…”

Section: Introductionmentioning

confidence: 99%

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Establishment, Validation, and Application of a Comprehensive Thermal Hydraulic Model for a Parabolic Trough Solar Field

Wang

Lei

et al. 2019

Energies

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To better understand the thermal hydraulic characteristics of the parabolic trough solar field (PTSF), a comprehensive thermal hydraulic model (CTHM) based on a pilot plant is developed in this paper. All of the main components and thermal and hydraulic transients are considered in the CTHM, and the input parameters of the model are no longer dependent on the total flow rate. In this paper, we solve the CTHM by a novel numerical approach based on graph theory and the Newton-Raphson method, and then examine it by two tests conducted based on a pilot plant. Comparing the flow rate, temperature, and pressure drop results show good agreement and further validate the availability and accuracy of the CTHM under hydraulic and thermal disturbance. Besides, two applications of the CTHM are implemented for presenting its potential function. In the first application, two cases are simulated to reveal how the thermal effects influence the PTSF behavior, and in the second application, the CHTF is used for the study of control strategies under uniform and nonuniform solar irradiance. The results verify the feasibility of controlling the PTSF outlet temperature through the header and loop valves.

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

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Establishment, Validation, and Application of a Comprehensive Thermal Hydraulic Model for a Parabolic Trough Solar Field

Wang

Lei

et al. 2019

Energies

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“…8 maps out heat flow in a conventional CSP plant (Abutayeh et al, 2014). The SF outputs heat to the PB for power generation and to the TES for storage.…”

Section: Modelmentioning

confidence: 99%

Optimizing thermal energy storage operation

2015

Self Cite

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“…Parabolic trough collector system (PTC) consists of a group of parabolic mirrors, which concentrate direct solar radiation onto an absorber tube located at the focal line of the parabola. Parabolic trough collector-based plants, using synthetic or organic oil as a heat-transfer fluid (HTF), are found to be commercially attractive (Fernández-García et al 2010;Abutayeh et al 2014). Due to stability limit of conventional HTFs, the maximum temperature is limited to about 400°C, which results in steam temperature at the inlet of turbine about 370°C (Yilmazoglu 2016).…”

Section: Introductionmentioning

confidence: 99%

Line-focusing concentrating solar collector-based power plants: a review

Desai

Bandyopadhyay

2016

Clean Techn Environ Policy

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Concentrated solar power (CSP) plant is an emerging technology among different renewable energy sources. Parabolic trough collector (PTC)-based CSP plant, using synthetic or organic oil as a heat-transfer fluid, is the most advanced technology. About 87 % of the operational capacities of CSP plants worldwide are based on PTC technology. Direct steam-generating linear Fresnel reflector (LFR) systems have been developed as a cost-effective alternative to PTC systems. Line-focusing concentrating solar collectors (PTC and LFR), with single-axis tracking, are simple in design and easy to operate. Prior to the detailed design of a CSP plant, it is necessary to finalize type of the solar field, type of the power-generating cycle, overall plant configuration, sizing of the solar field and the power block, etc. The optimal design of a CSP plant minimizes the levelized cost of energy for a given site. In this paper, a detailed review of important design parameters which affect the design of line-focusing concentrating solar collector-based power plants is presented. This includes parameters for solar collector field design, receiver, heat-transfer fluid, thermal energy storage, powergenerating cycle, sizing and configuration of the plant, etc. This review may provide a reference for designing CSP plants. Future research directions are also identified.

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Balancing heat transfer fluid flow in solar fields

Cited by 29 publications

References 7 publications

Establishment, Validation, and Application of a Comprehensive Thermal Hydraulic Model for a Parabolic Trough Solar Field

Establishment, Validation, and Application of a Comprehensive Thermal Hydraulic Model for a Parabolic Trough Solar Field

Optimizing thermal energy storage operation

Line-focusing concentrating solar collector-based power plants: a review

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