This solar air conditioning case study pertains to the sizing of an indoor solar conditioning system that uses an absorption chiller unit operating with water and lithium bromide (Li Br) for a hypothetical 3 bedroom Villa or house.
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| Hypothetical Villa Solar Air-Conditioning Case Study |
Input Data for Sizing:
Climate data for the calculation of solar radiation related to a selected hot climate city. The data relates to a hypothetical two-family dwelling (or large apartment) and to the building’s energy performance as assumed below.
| Indoor conditioned volume | 562,5 [m3] |
| Net surface area | 187,5 [m2] |
| Maximum heat loss | 100 [kWh/day] |
| Month | Average daily air temperature C° | Average daily cooling demand kWh/day |
| January | 20.7 | 54 |
| February | 20.6 | 53 |
| March | 22.3 | 59 |
| April | 25.8 | 71 |
| May | 30.1 | 86 |
| June | 32.2 | 93 |
| July | 33.6 | 98 |
| August | 34.2 | 100 |
| September | 32.9 | 96 |
| October | 30.2 | 86 |
| November | 26.8 | 75 |
| December | 23.2 | 62 |
Design Stage for Solar Air-Conditioning Case Study:
The sizing calculations of the absorption chiller and the solar field was determined taking into account a daily design energy demand due to heat loss of approximately 100 kWh.
