M&V Solar Water Heating Guideline - Eskom
M&V Solar Water Heating Guideline - Eskom
M&V Solar Water Heating Guideline - Eskom
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Measurement and Verification Standard <strong>Guideline</strong> for Low Pressure <strong>Solar</strong> <strong>Water</strong> <strong>Heating</strong> Systems v1r1<br />
8 THERMAL PERFORMANCE MODEL OF LOW PRESSURE SOLAR<br />
WATER HEATING SYSTEMS<br />
As seen in section 6.2. above to quantify the energy savings, the thermal performance of<br />
the LPSWH system need to be determined. The model is based on the relevant standards<br />
such as SANS 1307 and ISO 9459 [5 ] [7 ]. Note that the model thermal outputs will be<br />
seasonal and dependant on the installation location and its accuracy is based on the<br />
parameters determined by the SABS test.<br />
The model inputs and outputs are shown in Figure 22.<br />
Figure 22: Thermal Performance Model<br />
An example from the model run for a particular LPSWH system is shown in Figure 23.<br />
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