Estimation of the influence of different incidence angle modifier models on the biaxial factorization approach

Hertel, Julian David; Martínez-Moll, Víctor; Pujol-Nadal, Ramón

doi:10.1016/j.enconman.2015.08.082

Cited by 25 publications

(9 citation statements)

References 24 publications

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“…In another study [67], the simple analytical model has been validated against other models and commercial collectors specifications and has been found that the model predicts the IAMs in an accurate way with the deviation up to only 5%. It is worth mentioning that using the factorized IAM will generally predict the annual performance of up to 5% of the real energy production because of the high error when the range of the incident angle is high [68]. Additionally, compared to the heat losses, LFR optical losses have a greater effect on the performance [69].…”

Section: Incident Angel Modifier Methodsmentioning

confidence: 99%

Techno-Economic Assessment of Molten Salt-Based Concentrated Solar Power: Case Study of Linear Fresnel Reflector with a Fossil Fuel Backup under Saudi Arabia’s Climate Conditions

Aljudaya,

Michailos,

Ingham

et al. 2024

Energies

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Concentrated solar power (CSP) has gained traction for generating electricity at high capacity and meeting base-load energy demands in the energy mix market in a cost-effective manner. The linear Fresnel reflector (LFR) is valued for its cost-effectiveness, reduced capital and operational expenses, and limited land impact compared to alternatives such as the parabolic trough collector (PTC). To this end, the aim of this study is to optimize the operational parameters, such as the solar multiple (SM), thermal energy storage (TES), and fossil fuel (FF) backup system, in LFR power plants using molten salt as a heat transfer fluid (HTF). A 50 MW LFR power plant in Duba, Saudi Arabia, serves as a case study, with a Direct Normal Irradiance (DNI) above 2500 kWh/m2. About 600 SM-TES configurations are analyzed with the aim of minimizing the levelized cost of electricity (LCOE). The analysis shows that a solar-only plant can achieve a low LCOE of 11.92 ¢/kWh with a capacity factor (CF) up to 36%, generating around 131 GWh/y. By utilizing a TES system, the SM of 3.5 and a 15 h duration TES provides the optimum integration by increasing the annual energy generation (AEG) to 337 GWh, lowering the LCOE to 9.24 ¢/kWh, and boosting the CF to 86%. The techno-economic optimization reveals the superiority of the LFR with substantial TES over solar-only systems, exhibiting a 300% increase in annual energy output and a 20% reduction in LCOE. Additionally, employing the FF backup system at 64% of the turbine’s rated capacity boosts AEG by 17%, accompanied by a 5% LCOE reduction. However, this enhancement comes with a trade-off, involving burning a substantial amount of natural gas (503,429 MMBtu), leading to greenhouse gas emissions totaling 14,185 tonnes CO₂ eq. This comprehensive analysis is a first-of-a-kind study and provides insights into the optimal designs of LFR power plants and addresses thermal, economic, and environmental considerations of utilizing molten salt with a large TES system as well as employing natural gas backup. The outcomes of the research address a wide audience including academics, operators, and policy makers.

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Section: Incident Angel Modifier Methodsmentioning

confidence: 99%

Techno-Economic Assessment of Molten Salt-Based Concentrated Solar Power: Case Study of Linear Fresnel Reflector with a Fossil Fuel Backup under Saudi Arabia’s Climate Conditions

Aljudaya,

Michailos,

Ingham

et al. 2024

Energies

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“…The solar collectors need to be run under specific incidence angle conditions over a period of time by power energy input and the test requirement is relatively rigorous in the steady-state. Particularly, determination of the IAM of solar collectors with variable geometries is more complicated because there are more than one direction of dependence for the IAM (Sallaberry et al, 2015;Hertel et al, 2015). The present study aims to introduce a quick measurement method for identifying the collector IAM using a spectroradiometer.…”

Section: Nomenclaturementioning

confidence: 99%

A quick measurement method for determining the incidence angle modifier of flat plate solar collectors using spectroradiometer

et al. 2020

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“…Incidence Angle Modifier (IAM) is known as the variance in output performance of a solar collector as the angle of the sun changes in relation to the surface of the collector, with respect to irradiance under normal incidence (Hertel et al 2015). Both transversal (IAMT) and longitudinal (IAML) planes were used for IAM's calculation, with increments of 10º.…”

Section: Incidence Angle Modifiermentioning

confidence: 99%

Impact Study of Operating Temperatures and Cell Layout Under Different Concentration Factors in a CPC-PV Solar Collector in Combination with a Vertical Glass Receiver Composed by Bifacial Cells

Chacin¹,

Rangel²,

Cabral³

et al. 2019

Proceedings of the ISES Solar World Congress 2019

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Solar Collectors with Compound Parabolic Concentrator (CPC) reflectors redirect solar irradiance into the receiver (placed in optimal position). The concept of such devices is to reduce the installation area and energy costs. This research focuses on the behaviour and efficiency of a stationary CPC-PV solar collector. Each trough of this collector has different concentration factors (1.25 and 1.66) with vertically placed bi-facial cell receivers. An analysis of the electrical efficiency is performed in order to evaluate the viability of a CPC geometry with a vertical bifacial PV receiver. Furthermore, an investigation on bifacial cells performance due to concentration (and consequently increased cell temperature) is carried out. A numerical simulation of the yearly available radiation and the Incident Angle Modifiers (IAM) for each geometry is also conducted. Finally, a comparison between the simulations and the outdoor testing on the prototype collector is detailed. The tests took place in Gävle, Sweden (61º Latitude). The results showed that higher concentration factors led to larger operating temperatures (114ºC for a concentration factor of 1.66 and 96ºC for a concentration factor of 1.25). Although this may compromise the cell performance and shorten the device's life cycle, it is shown that appropriate ventilation will allow manageable operating temperatures.

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Estimation of the influence of different incidence angle modifier models on the biaxial factorization approach

Cited by 25 publications

References 24 publications

Techno-Economic Assessment of Molten Salt-Based Concentrated Solar Power: Case Study of Linear Fresnel Reflector with a Fossil Fuel Backup under Saudi Arabia’s Climate Conditions

Techno-Economic Assessment of Molten Salt-Based Concentrated Solar Power: Case Study of Linear Fresnel Reflector with a Fossil Fuel Backup under Saudi Arabia’s Climate Conditions

A quick measurement method for determining the incidence angle modifier of flat plate solar collectors using spectroradiometer

Impact Study of Operating Temperatures and Cell Layout Under Different Concentration Factors in a CPC-PV Solar Collector in Combination with a Vertical Glass Receiver Composed by Bifacial Cells

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