By applying the principles of the second law of thermodynamics and utilizing the HSC Chemistry software, the thermodynamic equilibrium and efficiency analysis of the CaSO₄CaO water splitting cycle was performed in this investigation. The temperatures desirable and the equilibrium compositions allied with the thermal reduction of CaSO₄ and the re-oxidation of CaO via water splitting reaction were estimated. The obtained results indicate that the thermal reduction temperature (T_H) required to completely decompose the CaSO₄ was decerased from 2220 to 1890 K due to the rise in the molar flow rate of (${\dot{n}}_{Ar}$) from 1 to 50 mol/s. In addition, the consequence of the T_H, ${\dot{n}}_{Ar}$, and the water splitting temperature ($T_L$) on the process parameters such as total amount of solar energy needed, re-radiation losses, energy dissipated by the water splitting reactor and others associated with the CaSO₄CaO water splitting cycle was scrutinized. By utilizing higher ${\dot{n}}_{Ar}$ from 1 to 50 mol/s, the T_H was decreased from 2200 to 1890 K. However, as the ${\dot{n}}_{Ar}$ was increased from 1 to 50 mol/s, the amount of heat energy needed to heat the Ar was also upsurged from 12.5 to 625.6 kW. This rise in the ${\dot{Q}}_{Ar-heating}$, directly reflected into an increase in the ${\dot{Q}}_{solar-cycle}$ from 1063.4 up to 2653.9 kW. The findings of this study further confirms that the maximum solar-to-fuel energy conversion efficiency (${\eta }_{solar-to-fuel}$) equal to 27.4% was realized by conducting the CaSO₄CaO water splitting cycle at T_H = 2220 K, ${\dot{n}}_{Ar}$ = 1 mol/s, and T_L = 1100 K. By using 50% of the recuperable heat, the ${\eta }_{solar-to-fuel}$ of the CaSO₄CaO water splitting cycle can be enhanced up to 36.2%.

通过应用热力学第二定律的原理并利用HSC化学软件，在此研究中对CaSO ₄ CaO的水分解循环进行了热力学平衡和效率分析。估计了所需的温度，以及与CaSO ₄的热还原和水分解反应引起的CaO的再氧化有关的平衡组成。获得的结果表明，由于（3 ）的摩尔流量的增加，完全分解CaSO ₄所需的热还原温度（T _H）从2220降低到1890K。${\dot{ñ}}_{\mathrm{一种}\mathrm{[R}}$）从1到50 mol / s。此外，的后果Ť _{^ h}，${\dot{ñ}}_{\mathrm{一种}\mathrm{[R}}$，以及水的分解温度（${Ť}_{\mathrm{大号}}$）在工艺参数上进行了审查，例如所需的太阳能总量，再辐射损失，水分解反应器及与CaSO ₄ CaO水分解循环有关的其他参数所消耗的能量。通过利用更高${\dot{ñ}}_{\mathrm{一种}\mathrm{[R}}$从1到50 mol / s，T _H从2200降低到1890K。${\dot{ñ}}_{\mathrm{一种}\mathrm{[R}}$如果将其从1 mol / s增加到50 mol / s，则加热Ar所需的热量也从12.5 kW增加到625.6 kW。这种上升${\dot{问}}_{\mathrm{一种}\mathrm{[R}-HË\mathrm{一种}Ť\mathrm{一世}ñG}$，直接反映为 ${\dot{问}}_{sØ升\mathrm{一种}\mathrm{[R}-CÿC升Ë}$从1063.4到2653.9 kW。这项研究的结果进一步证实了最大的太阳能到燃料的能量转换效率（${\eta }_{sØ升\mathrm{一种}\mathrm{[R}-ŤØ-FüË升}$）等于27.4％，是通过在T _H  = 2220 K时进行CaSO ₄ CaO分解水的循环实现的，${\dot{ñ}}_{\mathrm{一种}\mathrm{[R}}$ = 1 mol / s，而T _L  = 1100K。通过使用50％的可回收热量，${\eta }_{sØ升\mathrm{一种}\mathrm{[R}-ŤØ-FüË升}$CaSO ₄ CaO的水分解周期可以提高到36.2％。