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Behrad Haghghi,Amin Saleh,Hassan Hajabdollahi,Mohammad Shafiey Dehaj 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.7
A cogeneration production system of power and freshwater was studied from the perspective of energy,exergy, economic, and environmental (4E). The main components of this system include a Brayton cycle (BC), dual-pressureheat recovery steam generator (HRSG), steam turbine (ST), and multi-effect evaporation with thermal vapor compression(MEE-TVC). The system was optimized with a multi-objective genetic algorithm using MATLAB software andby considering the performance of two objective functions: the total annual cost (TAC) to minimize and the thermal efficiencyto maximize. The results showed that, with increasing gas turbine inlet temperature, thermal efficiency, exergy efficiency,and emission of pollutants improved, but the gain output ratio (GOR) decreased. GOR of desalination system,exergy efficiency of combined cycle power plant (CCPP), and emission of pollutants improved by increasing the compressorpressure ratio. In investigating the number of effects in desalination unit, by increasing this parameter the productionof freshwater, GOR and exergy efficiency of MEE-TVC was increased. By adding a duct burner to the cogeneration system,the thermal efficiency, the exergy efficiency, and the net power output were reduced by 0.67, 3.9, and 5.91%, respectively. But the freshwater production, GOR, and TAC was improved about 7.97, 9.69, and 1.265%, respectively.
Entrepreneurship Determines Public Empowerment through Good Governance and Public Service Quality
Rojikinnor ROJIKINNOR,A. Juli Andi GANI,Choirul SALEH,Fadillah AMIN 한국유통과학회 2020 The Journal of Asian Finance, Economics and Busine Vol.7 No.11
This study examines the relationship between entrepreneurship of the state civil apparatus variable and public empowerment variable in Central Kalimantan province. Samples were taken using judgment sampling techniques. Based on these criteria, it is known that only 332 regional organizational structures that meet the criteria. Thus, the sample size is 332 regional organizational structure. In each organizational structure of the regional apparatus, 3 people were selected from the state civil apparatus and 3 from the community. Also, this study considers the effect of good governance and the quality of public services as mediating variables. The analysis used in this study is PLS using WarpPLS software. the variables studied were entrepreneurship of the state civil apparatus, good governance, public service quality and public empowerment. The results of the study stated that there is a significant positive relationship between entrepreneurship and public empowerment. In addition, there is a positive effect of entrepreneurship on good governance and public service quality. also, there is a positive influence of good governance and public service quality on public empowerment. The novelty of this research is the entrepreneurship of the state civil apparatus which is the driving force of public empowerment through good governance and public service quality.