Effect of the concentration ratio on energetic and exergetic performance of concentrating solar collectors with integrated transparent insulation materials

Osorio, Julian D.; Rivera-Alvarez, Alejandro; Ordonez, Juan C.

doi:10.1016/j.seta.2019.01.005

Title: Effect of the concentration ratio on energetic and exergetic performance of concentrating solar collectors with integrated transparent insulation materials

Full Record
Other Related Research

Abstract

The effect of the concentration ratio on the performance of parabolic trough and central receiver collectors with integrated Transparent Insulation Materials (TIMs) is analyzed in this work. A model based on optical, energy, and exergy analyses is developed to determine thermal and second law efficiencies of concentrated solar collectors as a function of the absorber temperature and concentration ratio. The results are compared with the respective traditional collector configurations without TIM. In general, high concentration ratios are fundamental to maintain high efficiencies. The incorporation of a TIM into concentrated solar collectors leads to higher thermal efficiencies at high operating temperatures even at low concentration ratios. An equivalent second law efficiency to that of the reference collector configuration can be achieved at lower concentration ratios by incorporating a TIM in parabolic trough or a TIM and a glass envelope in central receiver collectors. As a result, the idea of using a TIM deserves further exploration as it seems to be a promising alternative that contributes to a more efficient and cost-effective technology.

Authors:

^[1]; Rivera-Alvarez, Alejandro ^[2];

^[3]

Idaho National Lab. (INL), Idaho Falls, ID (United States); Univ. de Medellin, Medellin (Colombia)
Ingenieria Termica Ltda., Medellin (Colombia); Fundacion Ergon, Medellin (Colombia)
Florida State Univ., Tallahassee, FL (United States)

Publication Date:: Fri Feb 15 00:00:00 EST 2019

Research Org.:: Idaho National Lab. (INL), Idaho Falls, ID (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1515004

Report Number(s):: INL/JOU-19-52621-Rev000
Journal ID: ISSN 2213-1388

Grant/Contract Number:: AC07-05ID14517

Resource Type:: Accepted Manuscript

Journal Name:: Sustainable Energy Technologies and Assessments

Additional Journal Information:: Journal Volume: 32; Journal Issue: C; Journal ID: ISSN 2213-1388

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 14 SOLAR ENERGY; 42 ENGINEERING; Concentration solar collectors; Concentration ratio (C); Transparent Insulation Material (TIM); Thermal efficiency; Second law efficiency; Thermal losses

Citation Formats


                    Osorio, Julian D., Rivera-Alvarez, Alejandro, and Ordonez, Juan C. Effect of the concentration ratio on energetic and exergetic performance of concentrating solar collectors with integrated transparent insulation materials.  United States: N. p., 2019. 
Web.  doi:10.1016/j.seta.2019.01.005.

Copy to clipboard


                    Osorio, Julian D., Rivera-Alvarez, Alejandro, & Ordonez, Juan C. Effect of the concentration ratio on energetic and exergetic performance of concentrating solar collectors with integrated transparent insulation materials.  United States.  https://doi.org/10.1016/j.seta.2019.01.005

Copy to clipboard


                    Osorio, Julian D., Rivera-Alvarez, Alejandro, and Ordonez, Juan C. Fri .  
"Effect of the concentration ratio on energetic and exergetic performance of concentrating solar collectors with integrated transparent insulation materials".  United States.  https://doi.org/10.1016/j.seta.2019.01.005.  https://www.osti.gov/servlets/purl/1515004.

Copy to clipboard


                    
@article{osti_1515004,

  title        = {Effect of the concentration ratio on energetic and exergetic performance of concentrating solar collectors with integrated transparent insulation materials},

  author       = {Osorio, Julian D. and Rivera-Alvarez, Alejandro and Ordonez, Juan C.},

  abstractNote = {The effect of the concentration ratio on the performance of parabolic trough and central receiver collectors with integrated Transparent Insulation Materials (TIMs) is analyzed in this work. A model based on optical, energy, and exergy analyses is developed to determine thermal and second law efficiencies of concentrated solar collectors as a function of the absorber temperature and concentration ratio. The results are compared with the respective traditional collector configurations without TIM. In general, high concentration ratios are fundamental to maintain high efficiencies. The incorporation of a TIM into concentrated solar collectors leads to higher thermal efficiencies at high operating temperatures even at low concentration ratios. An equivalent second law efficiency to that of the reference collector configuration can be achieved at lower concentration ratios by incorporating a TIM in parabolic trough or a TIM and a glass envelope in central receiver collectors. As a result, the idea of using a TIM deserves further exploration as it seems to be a promising alternative that contributes to a more efficient and cost-effective technology.},

  doi          = {10.1016/j.seta.2019.01.005},

  journal      = {Sustainable Energy Technologies and Assessments},

  number       = C,

  volume       = 32,

  place        = {United States},

  year         = {Fri Feb 15 00:00:00 EST 2019},

  month        = {Fri Feb 15 00:00:00 EST 2019}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1016/j.seta.2019.01.005

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 13 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Integration of transparent insulation materials into solar collector devices

Journal Article - Solar Energy

The integration of Transparent Insulation Materials (TIMs) into Flat Plate Collectors (FPCs), Parabolic Trough Collectors (PTCs), and Central Receiver (CR) collectors is studied in this paper. A general model including optical and thermal analyses is developed. The effects of TIM’s properties, such as the emittance, thermal conductivity, extinction coefficient, and thickness, on the collectors’ performance, are analyzed. At low absorber temperatures, performances of traditional-type collectors are relatively high. The efficiency of these collectors reduces dramatically at high temperatures due to the increment in heat losses. The incorporation of a TIM decreases thermal losses, leading to higher collectors’ efficiencies at highmore »« less
https://doi.org/10.1016/j.solener.2017.03.011

Full Text Available
Solar profile intensity gauge (SPIG) for receiver tube subsystem optimization in concentrating collectors

Conference Semmens, M G ; Schwinkendorf, W E - Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States)

Significant improvements in the performance of solar thermal collectors and photovoltaic concentration collectors have been demonstrated with alternative receiver tube configuration designs. Optimal receiver designs for each collector produced by the variety of manufacturers involved in solar thermal or solar photovoltaic systems need quick and efficient means of providing the empirical data necessary to perform receiver tube optimization engineering analysis. To measure incident radiation in the region of the focal point of concentrating mirrors, a solar profile intensity gauge (SPIG) has been developed by the BDM Corporation under contract to Sandia National Laboratories, Albuquerque, New Mexico. BDM design codes havemore »« less
Performance Analyses of Supercritical Carbon Dioxide-Based Parabolic Trough Collectors with Double-Glazed Receivers

Journal Article Hassan, Muhammed A. ; Fouad, Aya ; Dessoki, Khaled ; ... - Renewable Energy

Supercritical carbon dioxide is becoming a hot research topic as a potential heat transfer fluid in parabolic trough concentrators since it enables operating the solar system at high temperatures for a higher quality of energy. However, the corresponding inflated thermal losses necessitate alternative receiver designs. This work examines four double-glazed receivers, with each annular space being evacuated or non-evacuated, in terms of the absorber tube's diameter (53-80 mm) and the diameter ratios of the two glass shells (1.2-2.0). An analytical model is developed and validated for this purpose, and the four designs are further examined using ground-level solar and meteorologicalmore »« less
https://doi.org/10.1016/j.renene.2023.06.005
Influence of the concentration ratio on the thermal and economic performance of parabolic trough collectors

Journal Article Osorio, Julian D. ; Rivera-Alvarez, Alejandro - Renewable Energy

The thermal and economic performance of parabolic trough collectors (PTCs) and PTCs with double glass envelope (DGE-PTCs) are analyzed in this work. A model including thermal and optical effects is developed to evaluate the efficiency of vacuum and air-filled DGE-PTCs, while an economic model based on two commercial PTCs (SkyTrough and Ultimate Trough collectors) was developed to assess the economic performance. The efficiency and thermal output per unit cost of the proposed DGE-PTCs are analyzed as a function of the concentration ratio and are respectively compared with the thermal and economic performance of traditional and commercial PTCs. The optimum concentrationmore »« less
https://doi.org/10.1016/j.renene.2021.09.040

Full Text Available
An optical performance comparison of three concentrating solar power collector designs in linear Fresnel, parabolic trough, and central receiver

Journal Article Kincaid, Nicholas ; Mungas, Greg ; Kramer, Nicholas ; ... - Applied Energy

The optical performance of a concentrating solar power (CSP) collector is critical to the overall efficiency of the system. This study presents a detailed optical comparison between three representative CSP collector designs including linear Fresnel, parabolic trough, and central-receiver technologies. Optical models are implemented in SolTrace, which is ray-tracing software developed at the National Renewable Energy Laboratory. The ray-tracing algorithm is used to calculate a collector's design-point performance as well as its incidence-angle modifiers to evaluate the collector performance at any sun position during a typical meteorological year. The efficiency over a one-year period is then analyzed based on ray-tracingmore »« less
https://doi.org/10.1016/j.apenergy.2018.09.153

Similar Records