Vol.1 No.2
Year: 2013
Issue: Feb-Apr
Title : Design Fabrication and
Performance Evaluation of Parabolic Trough Concentrator
Author Name : ANKUR
GARG, Avadhesh Yadav
Synopsis :
The potential for a solar-thermal system for hot
water generation has been studied. Solar electric generation systems (PTSC)
currently in operation are based on parabolic trough solar collectors using
water as heat transfer fluid in the collector loop to transfer thermal energy.
To improve performance and reduce costs direct steam generation in the
collector has been proposed. In this paper the efficiency of parabolic trough
collectors is compared on the basis of different reflecting surfaces (current
SEGS plants). The model is based on absorber fluid temperature so it can be
used to predict the performance of the collector with any working fluid. The
effects of absorber emissivity and internal working fluid convection effects
are evaluated. An efficiency equation for trough collectors is developed and
used in a simulation model to evaluate the performance of direct steam generation
collectors for different radiation conditions and different absorber tube
sizes. The authors determined the performance of PTSC on the basis of different
reflecting surfaces.
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