SAP 2005 Calculator - Appendix H Solar Water Heating

Use this calculator to check your calculations for SAP 2005 Appendix H Solar Water Heating based on our products. Please let us know if you need further advice or information to assist you in completing this section of the SAP worksheet.

Details about the system
Property
Total floor area of property (TFA), m2      
Water Storage
Storage arrangement  
Gledhill cylinder model    
Cylinder capacity, litres      
Dedicated solar volume, litres      
Solar Collectors
Solar collector model    
Number of collectors      
Orientation of collector    
Tilt of collector    
Shading factor    
H1 Calculation of solar input for solar water heating
Aperture area of solar collector, m2 from test certificate (H1)
Zero-loss collector efficiency, η0 from test certificate (H2)
Collector heat loss coefficient, a1 from test certificate (H3)
Collector performance ratio (H3) / (H2) =  (H4)
Annual solar radiation per m2 from Table H2 (H5)
Overshading factor from Table H3 (H6)
Solar energy available (H1) x (H2) x (H5) x (H6) =  (H7)
Solar-to-load ratio (H7) / [(39) + (40)] =  (H8)
Utilistation factor   (H9)
Collector performance factor   (H10)
Dedicated solar storage volume, VS litres (H11)
If combined cylinder, total volume of cylinder litres (H12)
Effective solar volume, Veff   (H13)
Daily hot water demand Vd litres from Table 1 (H14)
Volume ratio Veff / Vd (H13) / (H14) =  (H15)
Solar storage volume factor f(Veff / Vd) if (1 + 0.2 x ln(H15)) < 1.0 else 1.0 =  (H16)
Solar input Qs (H7) x (H9) x (H10) x (H16) =  (H17)
Calculated values to help complete Part 4 Water heating energy requirements
Energy content of hot water used from Table 1 column (b) (39)
Distruibution loss from Table 1 column (c)   (40)
Solar DHW input calculated from Appendix H (50)

Note: The tables referred to are to be found within the SAP 2005 documentation.

Disclaimer: Barilla Limited have provided this online calculator to assist SAP Assessors complete Appendix H of SAP 2005, this calculator has not been approved by BRE and therefore the results should be cross checked against your own calculations, Barilla Limited can accept no responsibility for loss or damage caused by the use of this calculator. The calculator has been built based on SAP 2005 v9.83 (October 2009) - For the latest information visit the SAP 2005 website.

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