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Journal Articles
Accepted Manuscript
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng.
Paper No: SOL-23-1262
Published Online: July 2, 2024
... of S olar E nergy E ngineering . 14 09 2023 20 06 2024 20 06 2024 02 07 2024 Email: Jeffrey.Gifford@nrel.gov Email: patdavenpo@gmail.com Email: wxc@alum.lehigh.edu Email: zhiwen.ma@nrel.gov clean energy heat transfer Materials measurement Storage...
Journal Articles
Accepted Manuscript
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng.
Paper No: SOL-23-1349
Published Online: July 2, 2024
... method could reduce the commissioning time and therefore increase the viability of a solar tower plant significantly. In this work, we present HelioPoint, a fast airborne heliostat calibration technique, and demonstrate its accuracy to be below 0.3 mrad. The measurement is performed using an LED...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. December 2024, 146(6): 061001.
Paper No: SOL-23-1167
Published Online: May 15, 2024
... for wind measurements, insufficient critical load cases for heliostat design, insufficient understanding of turbulence impacts on heliostat tracking error, lack of knowledge on wind load under various heliostat array configurations, and underexplored heliostat field wind-load reduction and operating...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. August 2024, 146(4): 041010.
Paper No: SOL-23-1346
Published Online: April 29, 2024
... 12 2023 05 04 2024 08 04 2024 29 04 2024 Graphical Abstract Figure cooling efficiency measurement photovoltaics PV testing In the last ten years, the total renewable energy utilized power has tripled [ 1 ]. Shortly, solar energy has the potential...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. August 2024, 146(4): 041006.
Paper No: SOL-23-1058
Published Online: March 7, 2024
... 2024 Graphical Abstract Figure flow boiling enhanced tube composite structure performance factor two-phase flow enhanced heat transfer fluid flow measurement In the context of today's “double carbon” goal, the development of enhanced heat transfer technology provides...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. December 2023, 145(6): 061012.
Paper No: SOL-22-1280
Published Online: October 4, 2023
... to and monitored in a range of relevant environments. These test conditions include outdoor test settings and several controlled laboratory environments. These samples have been rigorously individually characterized using a series of reflectance measurements, visual inspections and, in some cases, in-depth...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. December 2023, 145(6): 061002.
Paper No: SOL-22-1080
Published Online: March 23, 2023
... to estimate the value of the state of the PV storage system from measurements of the PV generator voltage and current. The suggested technique is based on the quadratic Lyapunov function and does not employ a standard MPPT algorithm. Results show that the suggested control scheme has good tracking performance...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. August 2023, 145(4): 041011.
Paper No: SOL-22-1138
Published Online: January 27, 2023
... is developed for the heat treatment of metal. This system includes an in situ waste heat recovery mechanism. This paper presents a Joule heating-based, controlled, experimental assessment of a laboratory-scale, retrofitted, SCF system for generating benchmark data. The reported measurements illustrate the heat...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. April 2023, 145(2): 021013.
Paper No: SOL-22-1167
Published Online: September 30, 2022
... twisted ribs along with their nomenclature (a) Schematic view of absorber surface having staggered V-shaped twisted rib and (b) enlarged view of staggered V-shaped twisted ribs along with their nomenclature Table 2 System specification S. no. Measurement Values 1 Duct width...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. December 2022, 144(6): 061002.
Paper No: SOL-21-1429
Published Online: June 6, 2022
... W ind E nergy and B uilding E nergy C onservation . 17 12 2021 14 04 2022 15 04 2022 06 06 2022 double-pass solar collector arc-shaped roughness friction factor Nusselt number thermal performance factor heat transfer measurement renewable solar collector...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Sol. Energy Eng. August 2022, 144(4): 044501.
Paper No: SOL-21-1339
Published Online: March 18, 2022
... of temperatures from 230 °C to 750 °C in concentrated solar thermal power systems. To conduct measurement of the heat transfer coefficient of the molten salt at high temperatures, a circulation system and instrumentation of flow and heat transfer was constructed. Experimental measurement of the convective heat...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. June 2022, 144(3): 031005.
Paper No: SOL-21-1281
Published Online: March 7, 2022
... of this research was to perform the outdoor characterization of three PV technologies in a tropical climate and evaluate their performances with the aid of a set of key performance indicators. An innovative energy autonomous outdoor test facility has been used to measure the weather conditions and the IV curves...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. August 2022, 144(4): 041009.
Paper No: SOL-21-1278
Published Online: March 2, 2022
... . 12 08 2021 04 01 2022 04 01 2022 02 03 2022 wind turbines blade design blade element momentum theory power coefficient tip speed ratio pitch angle Reynolds number clean energy environment measurement renewable Recently, renewable energy sources, especially...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. April 2022, 144(2): 021011.
Paper No: SOL-21-1390
Published Online: January 13, 2022
... ncluding W ind E nergy and B uilding E nergy C onservation . 03 11 2021 24 11 2021 24 11 2021 13 01 2022 fouling wave element nonequilibrium thermal fluctuations continuity relation fluid flow mass transfer measurement The global energy demand is booming...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. February 2022, 144(1): 011003.
Paper No: SOL-20-1346
Published Online: July 16, 2021
... the control law. The plot for the PV and converter output power is obtained in Fig. 24 . Table 6 Approaching mode performance parmeters in TSMC Parameters Measurements Overshoot 1.73% Undershoot −1.73% Approaching time 17.096 ms Fig. 23 Approaching mode in TSMC...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Sol. Energy Eng. December 2021, 143(6): 064501.
Paper No: SOL-20-1486
Published Online: May 12, 2021
.... Perform a hypothesis test to identify whether the soiling is impacting on the generated energy. Let y i c be the i th observed generated power from a clean PV solar plant, for i = 1, …, n , where n is the total number of measurements. Assume that y i c is a realization...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. October 2021, 143(5): 051004.
Paper No: SOL-20-1387
Published Online: February 23, 2021
... satellites dedicated to perform total solar irradiance (TSI) measurements and to build a record of their behavior over the years, thus making these data essential for meteorology and climatology. In this study, we propose a simplified model to understand the thermal behavior of absolute radiometers, which...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. August 2021, 143(4): 041001.
Paper No: SOL-20-1050
Published Online: November 2, 2020
... Division of ASME for publication in the J ournal of S olar E nergy E ngineering : I ncluding W ind E nergy and B uilding E nergy C onservation . 06 02 2020 29 09 2020 29 09 2020 02 11 2020 absorber efficiency energy materials measurement optics photovoltaics...