From this study, the conclusions are as follows:
1.
For 10 kW heat rate at the absorber with the absorber temperature over 70 °C, the number of the solar collectors units of the solar-CAHT could be decreased about 50% which was 18 units instead of 35 units of the normal solar-AHT.
2.
From the simulation data, the overall cycle COP of the solar-CAHT was around 0.71 compared with 0.49 of the normal solar-AHT.
3.
From the experimental results, the overall cycle COPs of solar-CAHT and the solar-AHT were slightly lower to be around 0.62 and 0.39, respectively.
4.
The annual cost of the solar-CAHT was 5113 USD compared to that of the solar-AHT which was 5418 USD.
5.
The modified unit was beneficial than the normal unit in terms of energy efficiency and economic expense.