Simulation of accumulated performance of a solar thermal powered adsorption refrigeration system with daily climate conditions

Investigation on the long-term performance of solar thermal powered adsorption refrigeration system based on hourly accumulated daily cycles

“…state 1) every day, regardless of real climate conditions during the night. In reality, there might be some remaining methanol liquid left in the receiver at the end of a day, depending on the real weather condition during the night [18]. In another word, the current day cycle starts from where the previous day cycle ends, that is, the starting point of the current day is not necessarily the starting point of the previous day.…”

“…Due to that the basic configuration of such a system is only able to work for a single day, an upgraded configuration which can accumulate the cooling capacity without manually removing ice from storage daily, has been established from previous research [18], as shown in Fig. 2.…”

“…Possible daily cycles of such a system have been identified with consideration of daily weather data, as shown in Fig . 3 [18]. If assuming that Day 1 started at point 1, the 1st daily cycle would be 1-2-3-4.…”

“…In the previous research [18], the upgraded configuration and the mathematical model using daily weather data have been developed. The difference between the previous model estimate and experimental literature data provides between 4% and 8% uncertainty on a daily basis [19].…”

“…3), there are five possible situations Fig. 3 The schematic of a continuous daily cooling cycle [18] Fig. 2 Schematic of the solar adsorption refrigeration system with a separated receiver and evaporator [18] involved in the cycle, depending on hourly variation of solar radiation and ambient temperature.…”