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Title: Technical Manual for the SAM Physical Trough Model.
Author: Wagner, M. J.; Gilman, P.
Pages/Volumes: 124 pp.
Publication Year: 2011
Document Type: Research Report
NTIS/GPO Number: 1016437
Subject Code Description: Solar Energy - Thermal
Abstract: NREL, in conjunction with Sandia National Lab and the U.S Department of Energy, developed the System Advisor Model (SAM) analysis tool for renewable energy system performance and economic analysis. This paper documents the technical background and engineering formulation for one of SAM's two parabolic trough system models in SAM. The Physical Trough model calculates performance relationships based on physical first principles where possible, allowing the modeler to predict electricity production for a wider range of component geometries than is possible in the Empirical Trough model. This document describes the major parabolic trough plant subsystems in detail including the solar field, power block, thermal storage, piping, auxiliary heating, and control systems. This model makes use of both existing subsystem performance modeling approaches, and new approaches developed specifically for SAM.
Accession Number: 51825
Library Notes: NPL-1106 REV
Report Numbers: TP-5500-51825

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