The results will provide insights into a better understanding on inherent technical aspects of different CSP technologies. Sensitivity of three CSP technologies to the deployment locations and the overall optical-error magnitude is also examined through annual performance analysis. It is also shown that a dramatic cost reduction is required for the selected linear Fresnel technology to be competitive in the future energy market. The selected central-receiver technology provides the most consistent seasonal production profile over the course of the year due to its two-axis-tracking ability but would suffer most from the increasing solar collector optical error. The parabolic trough has the highest optical performance among all. Using China Lake (California) as an example, the annual optical efficiency is 60% for the selected parabolic trough collector, 52% for the selected central-receiver technology, and 40% for the selected linear Fresnel collector. The efficiency over a one-year period is then analyzed based on ray-tracing more » results. 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.
Soltrace example software#
Optical models are implemented in SolTrace, which is ray-tracing software developed at the National Renewable Energy Laboratory. This study presents a detailed optical comparison between three representative CSP collector designs including linear Fresnel, parabolic trough, and central-receiver technologies. 230000000875 corresponding Effects 0.The optical performance of a concentrating solar power (CSP) collector is critical to the overall efficiency of the system.Assignors: SANDIA CORPORATION Status Active legal-status Critical Current Adjusted expiration legal-status Critical Links Assignors: SANDIA CORPORATION Application granted granted Critical Publication of US8664577B1 publication Critical patent/US8664577B1/en Assigned to NATIONAL TECHNOLOGY & ENGINEERING SOLUTIONS OF SANDIA, LLC reassignment NATIONAL TECHNOLOGY & ENGINEERING SOLUTIONS OF SANDIA, LLC CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Soltrace example license#
DEPARTMENT OF ENERGY CONFIRMATORY LICENSE (SEE DOCUMENT FOR DETAILS). Assignors: GHANBARI, CHERYL M., KOLB, GREGORY J., HO, CLIFFORD K. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Sandia Corp filed Critical Sandia Corp Priority to US13/238,431 priority Critical patent/US8664577B1/en Assigned to SANDIA CORPORATION reassignment SANDIA CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Original Assignee Sandia Corp Priority date (The priority date is an assumption and is not a legal conclusion. National Technology and Engineering Solutions of Sandia LLC Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Kolb Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active, expires Application number US13/238,431 Inventor Cheryl M.
Soltrace example pdf#
Google Patents Long range heliostat target using array of normal incidence pyranometers to evaluate a beam of solar radiationĭownload PDF Info Publication number US8664577B1 US8664577B1 US13/238,431 US201113238431A US8664577B1 US 8664577 B1 US8664577 B1 US 8664577B1 US 201113238431 A US201113238431 A US 201113238431A US 8664577 B1 US8664577 B1 US 8664577B1 Authority US United States Prior art keywords heliostat sensors reflected portable target irradiance Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US8664577B1 - Long range heliostat target using array of normal incidence pyranometers to evaluate a beam of solar radiation US8664577B1 - Long range heliostat target using array of normal incidence pyranometers to evaluate a beam of solar radiation