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A concentrating solar collector array with 42 modules each comprising a CLFR (refer to Figure 8.11) and an absorber tube is used for raising steam under the following operating conditions: • Superheated steam condition: p1 = 100 bars, t1 = 550°C, enthalpy h1 = 3500 kJ/kg (from h,s-diagram) • Feedwater temperature is t2 = 268°C and its enthalpy is h2 = cp t2 = 4.187 × 268 = 1122 kJ/kg

A concentrating solar collector array with 42 modules each comprising a CLFR (refer to Figure 8.11) and an absorber tube is used for raising steam under the following operating conditions: • Superheated steam condition: p1 = 100 bars, t1 = 550°C, enthalpy h1 = 3500 kJ/kg (from h,s-diagram) • Feedwater temperature is t2 = 268°C and its enthalpy is h2 = cp t2 = 4.187 × 268 = 1122 kJ/kg

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A concentrating solar collector array with 42 modules each comprising a CLFR (refer to Figure 8.11) and an absorber tube is used for raising steam under the following operating conditions:
• Superheated steam condition: p1 = 100 bars, t1 = 550°C, enthalpy h1 = 3500 kJ/kg (from h,s-diagram)
• Feedwater temperature is t2 = 268°C and its enthalpy is h2 = cp t2 = 4.187 × 268 = 1122 kJ/kg
• Direct (beam) normal insolation (DNI) at the system location Ib,N = 833 W/m2 • Aperture area of a single CLFR module Aap = 390 m2
• Efficiency of the solar collector ηc = 0.71


Calculate (i) the rate of useful heat output of the CLFR array and (ii) the
rate of steam production.

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