## 3 Results
As indicated in Table 13, for the GPP cycle, the endogenous exergy rate was greater than the exogenous exergy rate in system components. The greater share of exergy destruction in the ORC condenser was caused by the irreversibility of the component itself because of its high exergy loss rate in the endogenous part. As previously discussed, the avoidable destruction rate in exergy can be controlled and reduced in practice. Table 13 shows that an ORC condenser consists of a high value of avoidable destruction rates (282.01 kW) among the components of a system. Thus, the efficiency of this component can be improved using some technical modifications and new technologies or by replacing the component with those with higher efficiencies. It is important to note that, unlike the conventional analysis, an ORC condenser is the most effective component due to its avoidable destruction rate to reduce irreversibilities. So, the main focus was on the avoidable/endogenous parts of the exergy destruction, which can be decreased by improving the efficiency of the kth component. This was followed by an investigation on the exogenous/avoidable exergy rates of loss, which can be reduced by improving the efficiency of other parts, Tsatsaronis and Morosuk [59]. As it is stated in [PERSON] et al. [60], Table 13 shows that the avoidable/endogenous exergy destruction rates in the ORC condenser were greater than the unavoidable/endogenous destruction rates for the GPP cycle. This shows that the efficiency can be improved by technical modifications of this component. Table 13 also indicates that the exogenous/unavoidable exergy destruction rates were higher than the exogenous/avoidable exergy rates of loss for the components, [PERSON] et al. [53]. In Table 14, for the SGPP cycle, the endogenous exergy destruction rate was higher than the exogenous exergy destruction rate in the system's components, which showed that the greater share of the destruction rate was because of the internal irreversibility in the component itself. So, among all components in the SGPP cycle, the solar field consisted of the highest destruction rate in the exogenous part (1959.46 kW), and also had the maximum endogenous destruction rate (4408.64 kW) among the system's components due to its irreversibility. As seen in Table 14, the unavoidable part of the exergy destruction rate was higher than the avoidable part in all components of the SGPP cycle. This indicated that there was a low potential in the system to reduce its irreversibilities by using some efficient and new components. Splitting the exergy destruction rates into endogenous/avoidable and exogenous/avoidable parts provides some important information that helps researchers to optimize systems. As seen in Table 14, the avoidable/endogenous exergy destruction rates in most of the equipment were higher than the exogenous/avoidable rates. Priority in the improvement process of a component should be given to the solar field, the Steam Evaporator and the ORC condenser because of their higher values in the endogenous/avoidable destruction rates, [PERSON] et al. [43], [PERSON] et al. [53]. Equations (31)-(38) were used to calculate the advance exergy destruction costs as shown in Table 15, which was based on the result of the advanced destroyed exergy. It can be observed that the endogenous exergy destruction was higher than the exogenous cost in the components of the GPP cycle. Therefore, it can be established that the interaction between component costs is not very relevant in the system; however, for the component under study, it was a parameter of vital importance. Additionally, it can be observed that the rates of unavoidable costs for the components studied showed an inclination in the unavoidable part.