Fig. 1
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Layout of the integration system. Temperature sensors are denoted by TxX (X = H, L for higher and lower temperature respectively; x = s, t, f, h for solar, tank, feed water and hot water circuit, respectively), flow meters by FMx, heat exchangers by HMx. Global irradiance on the tilted plane of the collectors is measured through a pyranometer, here denoted by SO.
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