Journal
APPLIED THERMAL ENGINEERING
Volume 89, Issue -, Pages 578-586Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2015.06.019
Keywords
Ground source heat pump (GSHP); Photovoltaic/thermal; Control system; Fuzzy logic; Optimization; On-off control
Funding
- New & Renewable Energy of Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Korea Government Ministry of Knowledge Economy [2013T100200057]
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Renewable Heat Obligation (RHO) implementation in every country becomes an important issue to utilize more renewable energy sources while reducing the usage of fossil fuel. In 2014, South Korea has a target that every commercial building construction that exceeding 10,000 m(2) has to have on-site new & renewable power generation such as combined heat in the beginning of 2016. Photovoltaic/Thermal (PVT) and Geothermal hybrid systems have been introduced in previous research (E.J. Lee et al.) and it showed a great result from its efficiency and also its power consumption for single and multi-building cases. In this paper, Fuzzy Logic control has been applied to optimize the energy consumption of the system. By comparing it with conventional on-off control, fuzzy logic control system shows a better result in reducing primary energy consumption for both heating and cooling systems annually. Two cases were introduced in this paper, GSHP system and PVT-GSHP system with both on-off and fuzzy logic applied respectively. As a result, it shows that fuzzy logic control consumed 13.3% less energy compared with on-off controller for GSHP system annually and 18.3% less energy compared to on-off controller for PVT-GSHP system annually. (C) 2015 Elsevier Ltd. All rights reserved.
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