Analysis of cooling methods of parabolic trough Concentrating Solar Thermal power plant

Kibaara, S.; Chowdhury, S.

doi:10.1109/powercon.2012.6401407

Cited by 4 publications

(2 citation statements)

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“…In most cases, the TES system is simply defined in terms of how many hours the plant can rely on it [25]; some others [30] define the parameters to be included in an online simulation software [31]; others [1,29] describe the equations related to these systems but either they do it too thoroughly or they are again only used to determine how much the solar share of the power plant can be increased as a function of the storage capability of the system.…”

Section: Introductionmentioning

confidence: 99%

A Novel Modeling of Molten-Salt Heat Storage Systems in Thermal Solar Power Plants

Menéndez¹,

Martínez

Prieto

et al. 2014

Energies

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Many thermal solar power plants use thermal oil as heat transfer fluid, and molten salts as thermal energy storage. Oil absorbs energy from sun light, and transfers it to a water-steam cycle across heat exchangers, to be converted into electric energy by means of a turbogenerator, or to be stored in a thermal energy storage system so that it can be later transferred to the water-steam cycle. The complexity of these thermal solar plants is rather high, as they combine traditional engineering used in power stations (water-steam cycle) or petrochemical (oil piping), with the new solar (parabolic trough collector) and heat storage (molten salts) technologies. With the engineering of these plants being relatively new, regulation of the thermal energy storage system is currently achieved in manual or semiautomatic ways, controlling its variables with proportional-integral-derivative (PID) regulators. This makes the overall performance of these plants non optimal. This work focuses on energy storage systems based on molten salt, and defines a complete model of the process. By defining such a model, the ground for future research into optimal control methods will be established. The accuracy of the model will be determined by comparing the results it provides and those measured in the molten-salt heat storage system of an actual power plant. OPEN ACCESSEnergies 2014, 7 6722

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Section: Introductionmentioning

confidence: 99%

A Novel Modeling of Molten-Salt Heat Storage Systems in Thermal Solar Power Plants

Menéndez¹,

Martínez

Prieto

et al. 2014

Energies

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“…The optimal turbine inlet pressures for 50 MWe plants, with reheat-regenerative Rankine cycle, is in the range of about 9.5-15 MPa (Desai and Bandyopadhyay 2015a). Kibaara et al (2012) investigated the wet-and drycooled steam Rankine cycle-based CSP plants and reported that the capital cost and the levelized cost of energy are increased by 5 and 15 %, for dry-cooled plants. Liqreina and Qoaider (2014) compared the values of the annual mean overall efficiency, water consumption, and levelized cost of energy for the dry-and wet-cooled steam Rankine cycle-based CSP plants.…”

Section: Steam Rankine Cyclementioning

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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