Figure P5.42 shows a system for collecting solar energy
Chapter 5, Problem 5.42(choose chapter or problem)
Figure P5.42 shows a system for collecting solar energy and using it for generating electricity. The solar collector receives an average annual daily solar input of 4 kW-h per \(\mathrm{m}^{2}\) of collector area. The energy collected is transferred without loss to a storage unit whose temperature remains at 400 K. The power cycle receives energy by heat transfer from the storage unit and discharges energy by heat transfer to the surroundings at 285 K. The collector measures 15 m by 25 m. If the electricity generated can be sold for 8 cents per \(\mathrm{kW} \cdot \mathrm{h}\), plot the value of the electricity generated annually, in $, versus the power cycle thermal efficiency. Comment.
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