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RISDesign and Characterization of a 7.2 kW Solar Simulator
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A 7.2 kW (electric input) solar simulator was designed in order to perform accelerated testing on absorber materials for concentrating solar power (CSP) technologies. computer-aided design (cad) software integrating a ...
Heat Transfer Models of Moving Packed-Bed Particle-to-sCO2 Heat Exchangers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Particle-based concentrating solar power (CSP) plants have been proposed to increase operating temperature for integration with higher efficiency power cycles using supercritical carbon dioxide (sCO2). The majority of ...
Effect of Quartz Aperture Covers on the Fluid Dynamics and Thermal Efficiency of Falling Particle Receivers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Falling particle receivers are an emerging technology for use in concentrating solar power systems. In this study, quartz half-shells are investigated for use as full or partial aperture covers to reduce receiver thermal ...
Potential Impacts of Climate Change on Renewable Energy and Storage Requirements for Grid Reliability and Resource Adequacy
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper provides a study of the potential impacts of climate change on intermittent renewable energy resources and storage requirements for grid reliability and resource adequacy. Climate change models and available ...
Compensation of Gravity Induced Heliostat Deflections for Improved Optical Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Heliostat optical performance can be affected by both wind and gravity induced deflections in the mirror support structure. These effects can result in decreased energy collection efficiency, depending on the magnitude of ...
Numerical Simulation of Natural Convection in Solar Cavity Receivers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cavity receivers used in solar power towers and dish concentrators may lose considerable energy by natural convection, which reduces the overall system efficiency. A validated numerical receiver model is desired to better ...
Technoeconomic Analysis of Alternative Solarized s CO2 Brayton Cycle Configurations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper evaluates cost and performance tradeoffs of alternative supercritical carbon dioxide (sCO2) closedloop Brayton cycle configurations with a concentrated solar heat source. Alternative sCO2 power cycle configurations ...
Bulk Velocity and Mass Flowrate Estimation of Particle Plumes Through Particle Image Velocimetry Analysis of Thermogram Sequences
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Particle Image Velocimetry (PIV) measurements are commonly used to determine velocity fields from a flow, given that sufficient tracers can be added and tracked to determine their motion. While these types of measurements ...
A Non-Intrusive Particle Temperature Extraction Methodology Using Infrared and Visible-Image Sequences for High-Temperature Particle Plumes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The direct measurement of particle temperatures in particle-laden flows presents a unique challenge to thermometry due to the flow's transient and stochastic nature. Previous attempts to measure the bulk particle temperature ...
The Application of a Non-Intrusive Methodology to Estimate Particle Egress Rate and Advective Heat Losses of a Falling Particle Receiver During On-Sun Tests
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The direct measurement of particle temperatures and advective losses from solid particle receiver has been a topic of necessary interest to de-risk the technology and improve its performance. Due to the flow's transient ...