Sensitivity analysis on optical performance of a novel linear Fresnel concentrating solar power collector

Kincaid, Nicholas; Mungas, Greg; Kramer, Nick; Zhu, Guangdong

doi:10.1016/j.solener.2019.01.054

Cited by 23 publications

(9 citation statements)

References 22 publications

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“…Sun shape is modeled as a distribution close to pill-box with a cone semi-angle of 4.65 mrad and using 10 7 ray intersections (Buie et al, 2003). Primary and secondary reflectors are characterized by a reflectivity of 0.94, Gaussian error distributions of 2 mrad for slope error and 1.5 mrad for specularity error (Kincaid et al, 2019) (Zhu and Lewandowski, 2012).…”

Section: Solar Field Analysismentioning

confidence: 99%

Technical feasibility analysis of a linear particle solar receiver

et al. 2020

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Section: Solar Field Analysismentioning

confidence: 99%

Technical feasibility analysis of a linear particle solar receiver

et al. 2020

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“…The authors observed that, a substantially greater concentration will lead to smaller heat losses, so providing greater conversion performance at great working temperatures. Kincaid et al [9] analyzed the optical efficiency of Hyperlight LF system. They expressed that such a model can estimate the LF performance under different working conditions.…”

Section: Introductionmentioning

confidence: 99%

“…Kincaid et al. [9] analyzed the optical efficiency of Hyperlight LF system. They expressed that such a model can estimate the LF performance under different working conditions.…”

Section: Introductionmentioning

confidence: 99%

Solar LFR system with new cavity reflector employing DO model

2021

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In current context, to achieve lower heat loss in Linear Fresnel reflector (LFR) unit, innovative configuration for cavity has been offered. This cavity consists of one hot circular wall and two inclined adiabatic walls. The below wall is made of glass and connect with outside air flow. The operating fluid is air and its features were temperature dependent. Inclination angle (θ), wind speed and circular wall temperature are variable factors. Both thermal and irreversibility behavior were analyzed in outputs. Finite volume method (FVM) was utilized for such 2D problem involving radiation source term. The incident radiation contours were reported which were obtained by implement of discrete ordinates (DO) model. Verification was done with comparing data with that of previous numerical publication. Stream function augments about 87.5% with augmentation of θ while changing the hot temperature cannot affect the strength of the eddy. Radiation mode is directly relevant to temperature difference, so lower glass temperature provides lower incident radiation. At lowest T h , augment of θ offers reduction in glass temperature and incident radiation about 2.27% and 12.94%. Given θ = 120 o , reduce of T r makes cold temperature to increase about 20.59%. Owing to augmentation of heat loss with rise of T h , θ and wind speed; all factors have direct relation with Nu and Nu r . Temperature of circular wall has highest influence on Nu. With assumption of minimum values of other factors, Nu augments 19.63% and 65.07% with rise of h ext and θ while it declines about 89.59% with increase of T r . Irreversibility decreases about 86.38% with rise of T r when θ = 120 o , h ext = 20. Given T h = 673 K, h ext = 20, total entropy augments about 6.75% with employing greater angle.

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“…A novel low-cost system, where LFR mirrors float on a water basin, was recently presented in Ref. [10].…”

Section: Introductionmentioning

confidence: 99%