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Integration of parabolic trough and linear Fresnel collectors for optimum design of concentrating solar thermal power plant

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Title Integration of parabolic trough and linear Fresnel collectors for optimum design of concentrating solar thermal power plant
 
Creator DESAI, NB
BANDYOPADHYAY, S
 
Subject DIRECT STEAM-GENERATION
HEAT-TRANSFER FLUID
MOLTEN-SALT
OPTIMIZATION
TECHNOLOGY
SIMULATION
RECEIVER
STORAGE
INDIA
Concentrating solar power
Linear Fresnel reflector
Parabolic trough collector
System Optimization
Selection diagram
 
Description A concentrating solar power (CSP) plant with parabolic trough collector (PTC) using thermal oil as heat transfer fluid (HTF) is the most commercially established technology. On the other hand, linear Fresnel reflectors (LFRs) with direct steam generation (DSG) are developed and proposed as cheaper alternative to PTC systems. The optical efficiency of LFR systems is lower than that of PTC systems. Also low-cost LFR systems produce saturated steam, resulting in higher aperture area requirement compared to PTC-based CSP plants of the same capacity. In this paper, integration of parabolic trough and linear Fresnel collectors for an optimum design of a CSP plant is proposed. The integrated CSP plant configuration combines the advantages of conventional HTF-based PTC fields and DSG of LFR fields. Thermo-economic comparisons between PTC-based, LFR-based and integrated CSP plant configurations, without hybridization and storage, are presented in this paper. An approximate, but simple selection methodology for these configurations, based on the values of relative collector field costs per unit of energy gain and relative isentropic efficiency of turbines, is also proposed to generate selection diagram. This diagram helps in selecting optimum configuration for the CSP plant. The applicability of the proposed methodology is demonstrated through an illustrative case study. Detailed simulations are advisable in case of design point close to separation lines between different regions in the selection diagram.
 
Publisher SPRINGER
 
Date 2016-01-14T11:06:49Z
2016-01-14T11:06:49Z
2015
 
Type Article
 
Identifier CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY, 17(7SI)1945-1961
1618-954X
1618-9558
http://dx.doi.org/10.1007/s10098-015-0918-9
http://dspace.library.iitb.ac.in/jspui/handle/100/17434
 
Language en