The thermal performance of the

Fig. 2. Schematic diagram of thermal AM 92016 storage unit using Ba(OH)2·8H2O as PCM.Figure optionsDownload full-size imageDownload as PowerPoint slide
Fig. 3. X-ray diffraction of the PCM; ds with values of 3.702, 3.236, 2.618, 1.928, and 1.936 indicate the presence of BaCO3.Figure optionsDownload full-size imageDownload as PowerPoint slide
Fig. 4. Fourier translation infrared spectroscopy of the PCM.Figure optionsDownload full-size imageDownload as PowerPoint slide
Fig. 5. Differential scanning calorimetry of the PCM.Figure optionsDownload full-size imageDownload as PowerPoint slide
Table 1.
Thermal properties of the PCM.FusionSolidificationEnthalpy (kJ kg−1)Onset (°C)Peak (°C)Enthalpy (kJ kg−1)Onset (°C)Peak (°C)193.077.9881.8357.852.6552.36Full-size tableTable optionsView in workspaceDownload as CSV
The constant flow rate test starts by preconditioning the test rig with a constant flow rate of 0.02 kg/(m2 s) with the solar collector shielded. When the whole system obtains a uniform temperature, the shade over the solar collector is steinkerns removed. The test is run from 8:00 am to 4:00 pm.