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Techno-economic analysis of a hybrid renewable energy system integrated with productive activities in an underdeveloped rural region of eastern Indonesia

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Clean Energy 2023年第6期7卷 1247-1267页

作者： alya nurul shafira Subhan Petrana Rahma Muthia Widodo Wahyu Purwanto Sustainable Energy Systems and Policy Research Cluster Universitas IndonesiaDepok16424Indonesia Chemical Engineering Department Faculty of EngineeringUniversitas IndonesiaDepok16424Indonesia Master Program in Energy Systems Engineering Faculty of EngineeringUniversitas IndonesiaDepok16424Indonesia

The Southwest Maluku region in eastern Indonesia is considered a frontier,outermost and underdeveloped *** inhabitants live on isolated islands,including the residents of Mahaleta Village,where only 9.4%of the community have limited access to *** study aimed to design an economically feasible hybrid renewable energy(RE)system based on solar and wind energy to integrate with the productive activities of the *** study developed conceptual schemes to meet the demand for electricity from the resi-dential,community,commercial and productive sectors of the *** analysis was performed using a techno-economic *** hybrid system was designed using the HOMER Pro optimization function,and cold-storage and dryer systems were designed to support related productive *** optimized design of the hybrid RE system comprised 271.62 kW of solar photovoltaics,80 kW of wind turbines and a 1-MWh lead-acid *** found that the hybrid RE system would only be economically feasible with a full-grant incentive and an electricity tariff of$0.0808/***,the productive activity schemes were all economically feasible,with a cold-storage cost of$0.035/kg and a drying cost of$0.082/*** the hybrid RE system with productive activities can improve the economic feasibility of the energy system and create more jobs as well as increase income for the local community.

关键词： underdeveloped region hybrid renewable energy system photovoltaics wind turbine Indonesia

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Enhancement of Penaeus vannamei shrimp growth using nanobubble in indoor raceway pond

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Aquaculture and Fisheries 2021年第3期6卷 277-282页

作者： Asri Ifani Rahmawati Rizki Nugraha Saputra Arief Hidayatullah Agus Dwiarto Hardi Junaedi Dedi Cahyadi Henry Kasman Hadi Saputra Wendy Tri Prabowo Ujang Komarudin Asdani Kartamiharja Hanny shafira Alfian Noviyanto nurul Taufiqu Rochman Nanobubble Karya Indonesia Ltd.Jl.Raya SerpongSouth TangerangBanten15314Indonesia Nano Center Indonesia Jl.Raya SerpongSouth TangerangBanten15314Indonesia Department of Agricultural Industry IPB UniversityJl.Raya DramagaBogorWest Java16680Indonesia Department of Aquaculture Vocational SchoolIPB UniversityJl.Kumbang 14BogorWest Java16680Indonesia Aquaculture Center for Brackish Water Situbondo Jl.Raya PecaronEast Java68351Indonesia Department of Mechanical Engineering Faculty of EngineeringMercu Buana UniversityJl.Meruya SelatanKebun JerukJakarta11650Indonesia Research Center for Metallurgy and Materials Indonesian Institute of SciencesPUSPIPTEKSouth TangerangBanten15314Indonesia

The effects of nanobubble on the growth environment,such as dissolved oxygen(DO)and total virus-bacteria,and growth performance,such as growth,feed conversion ratio(FCR),survival rate(SR),total harvest,and productivity,were investigated in Penaeus vannamei shrimp *** present study was carried out in 50 m2 indoor raceway ponds for 81 days with stocking density being set to 680 shrimp m􀀀3 in two types of treatment:nanobubble and diffuser aerator.A paddlewheel was used to distribute the oxygen saturation levels throughout the *** presence of nanoparticles was detected using a dynamic light scattering method and was reported to be 82.38 nm in size and􀀀26 mV for zeta potential *** was significantly higher under nanobubble *** virus-bacteria and FCR decreased,whereas SR,growth(weight and length),total harvest,and productivity increased with increasing *** SR was reported to reach 95%.The average weight and length of *** were 15.1±1.8 g and 13.1±1.1 cm,*** total harvest and productivity have doubled to 436 kg and 8.7 kg/*** results revealed that nanobubble has managed to maintain DO at the optimal range and affected the shrimp growth significantly(P<0.05).

关键词： Nanobubble Penaeus vannamei Growth DO concentration

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