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ESTIMATING SOLAR COMBISYSTEM PERFORMANCE USING THE F-CHART
METHOD
ANSWERS TO TEXTBOOK QUESTIONS AND EXERCISES
1. Estimating the monthly or annual heat delivery from a solar combisystem is complex
2. The f in f-chart stands for fraction.
5. The LHES is used to correct Y, not X. So for X=3 and Y=1, f = 0.6
9. FRUL = 0.865, UAb = 428.6, Ac = 192 ft2, e = 0.6. Heat exchanger penalty factor = 0.96,
10. F-CHART software was developed based on empirical correlations of the results of
11. Slope of the collector efficiency line, y-intercept of the collector efficiency line, k value
13. 301.4 Btu/hr/°F