... author. Email: rebecca.mitchell@nrel.gov Email: kyle.sperber@nrel.gov Email: grabelmz@mail.uc.edu Email: guangdong.zhu@nrel.gov measurement optics heliostat UAS concentrating solar power References [1] Energy.gov , “IVANPAH.” https://www.energy.gov/lpo/ivanpah...

... 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 better than 0.3 mrad. The measurement is performed using a light...

... and B uilding E nergy C onservation . 29 01 2024 02 05 2024 03 05 2024 24 06 2024 Graphical Abstract Figure solar receiving tubes 3D-printed helical internal fins experimental test low entropy production collector fluid flow heat transfer measurement...

... 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...

... 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...

... 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...

... 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...

... strength and modulus of elasticity at room temperature and with the PCM fully melted within the composite are measured. Additionally, the hardness, latent heat of fusion, phase-change temperature, and thermal conductivity are investigated. An analysis of microstructures of the composite is used to support...

... 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...

... 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...

... 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...

... 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...

... 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...

... 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...

... . 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...

... 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...

... 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...

.... 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...

... 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...

... 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...