Evaluation and Parametric Optimization of the Thermal Performance and Cost Effectiveness of Active-Indirect Solar Hot Water Plants

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  • Kim Young-Deuk
    Faculty of Mechanical Engineering, Hanyang University
  • Thu Kyaw
    Faculty of Mechanical Engineering, National University of Singapore
  • Ng Kim Choon
    Faculty of WDRC, King Abdullah University of Science and Technology

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In the study, an investigation and comparison of the thermal performance and cost effectiveness of an active-indirect solar hot water plant (SHWP) at Incheon (Korea), Jeddah (Saudi Arabia) and Changi (Singapore) international airports are carried out. Plant performances are analyzed for various collector areas and storage tank volumes at the ASHRAE standard flow rate and are reported in terms of the annual solar fraction, solar thermal rating, as well as the capital payback period and annualized life cycle savings. The main objective of this study is to optimize a SHWP that supplies water at 65℃ to a flight kitchen for the economic benefits for an average daily energy demand. For the energy demand of 100 m^3/day, the minimum payback periods of SHWPs at Incheon, Jeddah and Changi airports are 8.94 years with A_c = 1140 m^2 and V_t = 32 m^3, 5.91 years with A_c = 750 m^2 and V_t = 24 m^3 and 8.39 years with A_c = 1050 m^2 and V_t = 28 m^3, respectively

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  • Evergreen

    Evergreen 2 (2), 50-60, 2015-09

    九州大学グリーンテクノロジー研究教育センター

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