Dynamic Characteristics of Collector System of Double Loop Trough Solar Power Station

doi:10.3969/j.issn.1000-7229.2015.11.022

Abstract

Abstract:

In order to study the dynamic response characteristics of thecollector systemof the double loop parabolic trough solar power.As America SEGS power plant unitⅥ（SEGSⅥ） is the research object，with the theoretical modeling and numerical calculation，the dynamic simulation model about the double loop parabolic trough solar power station collector system is studied. Based on the mass， energy and momentum conservation equations and elements knowledge of relevant specialties，the mathematical model of a parabolic trough solar collector with heat conduction oil / steam is studied.Analysis of dynamic characteristics change of collector outlet temperature in the change of the intensity of solar radiation，oilentrance volume of collector， oil entrance temperature of collector，and the vacuum of collector. The experimental results show that the outlet temperature of the collector increases with increase of the intensity of solar radiationand the temperature of the collector entrance， but it will decreases with the increase of the the volume flow. Vacuum damage has great influence on the outlet temperature of the collector.The model can correctly reflect the dynamic characteristic of the research object， the operation is stable and reliable；model not only can be used to study on the operation characteristics of the simulation object， provide a good basis for model for double loop parabolic trough solar thermal power generation system dynamic characteristics research.

Key words: collector system, mathematical model, simulation, dynamic characteristics

CLC Number:

TM 615

LI Huanbing， CUI Ning.

Dynamic Characteristics of Collector System of Double Loop Trough Solar Power Station

[J]. ELECTRIC POWER CONSTRUCTION, 2015, 36(11): 141-147.

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