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        검색결과 4

        1.
        2024.05 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study focuses on analyzing the energy-saving effects of the recirculation aquaculture system using seawater source heat pumps and solar power generation. Based on the thermal load analysis conducted using the transient system simulation tool, the annual energy consumption of the recirculation aquaculture system was analyzed and the energy-saving effects of utilizing the photovoltaic system was evaluated. When analyzing the heat load, the sea areas where the fish farms are located, the type of breeding tank, and the circulation rate of breeding water were taken into consideration. In addition, a method for determining the appropriate capacity for each operation time was examined when applying the energy storage system instead of the existing diesel generator as an emergency power, which is required to maintain the water temperature of breeding water during power outage. The results suggest that, among the four seas considered, Jeju should be estimated to achieve the highest energy-saving performance using the solar power generation, with approximately 45% energy savings.
        4,500원
        2.
        2024.02 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study deals with the application of an artificial neural network (ANN) model to predict power consumption for utilizing seawater source heat pumps of recirculating aquaculture system. An integrated dynamic simulation model was constructed using the TRNSYS program to obtain input and output data for the ANN model to predict the power consumption of the recirculating aquaculture system with a heat pump system. Data obtained from the TRNSYS program were analyzed using linear regression, and converted into optimal data necessary for the ANN model through normalization. To optimize the ANN-based power consumption prediction model, the hyper parameters of ANN were determined using the Bayesian optimization. ANN simulation results showed that ANN models with optimized hyper parameters exhibited acceptably high predictive accuracy conforming to ASHRAE standards.
        4,500원
        4.
        2005.08 KCI 등재 서비스 종료(열람 제한)
        신설될 복합화력발전소 취수펌프장 계획안에 대하여 수치 및 수리모형실험을 수행하고 순환수취수펌프운영에 문제를 발생시킬 가능성이 발견되면 개선안을 도출하는 것이 본 연구의 목적이다. 수리모형은 1:20의 크기로 아크릴을 이용하여 제작되었고 2차원 수치모형실험은 RMA2모형을 이용하였다. 수리 및 수치모형실험의 결과를 평가하기 위하여 취수로 및 취수펌프장내 흐름에 대한 평가기준을 설정하였다. 복합화력발전소 취수펌프장의 계획안에 대한 2차원 수치모형실험을 통하