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A Novel Sensor Platform Matching the Improved Version of IPMVP Option C for Measuring Energy Savings
Graduate Institute of Environmental Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao E. Rd., Taipei City 106, Taiwan
* Author to whom correspondence should be addressed.
Received: 22 March 2013; in revised form: 6 May 2013 / Accepted: 13 May 2013 / Published: 22 May 2013
Abstract: It is easy to measure energy consumption with a power meter. However, energy savings cannot be directly computed by the powers measured using existing power meter technologies, since the power consumption only reflects parts of the real energy flows. The International Performance Measurement and Verification Protocol (IPMVP) was proposed by the Efficiency Valuation Organization (EVO) to quantify energy savings using four different methodologies of A, B, C and D. Although energy savings can be estimated following the IPMVP, there are limitations on its practical implementation. Moreover, the data processing methods of the four IPMVP alternatives use multiple sensors (thermometer, hygrometer, Occupant information) and power meter readings to simulate all facilities, in order to determine an energy usage benchmark and the energy savings. This study proposes a simple sensor platform to measure energy savings. Using usually the Electronic Product Code (EPC) global standard, an architecture framework for an information system is constructed that integrates sensors data, power meter readings and occupancy conditions. The proposed sensor platform is used to monitor a building with a newly built vertical garden system (VGS). A VGS shields solar radiation and saves on energy that would be expended on air-conditioning. With this platform, the amount of energy saved in the whole facility is measured and reported in real-time. The data are compared with those obtained from detailed measurement and verification (M&V) processes. The discrepancy is less than 1.565%. Using measurements from the proposed sensor platform, the energy savings for the entire facility are quantified, with a resolution of ±1.2%. The VGS gives an 8.483% daily electricity saving for the building. Thus, the results show that the simple sensor platform proposed by this study is more widely applicable than the four complicated IPMVP alternatives and the VGS is an effective tool in reducing the carbon footprint of a building.
Keywords: sensor platform; IPMVP; energy savings; EPC global architecture framework; vertical garden system (VGS); environmental monitoring
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MDPI and ACS Style
Tseng, Y.-C.; Lee, D.-S.; Lin, C.-F.; Chang, C.-Y. A Novel Sensor Platform Matching the Improved Version of IPMVP Option C for Measuring Energy Savings. Sensors 2013, 13, 6811-6831.
Tseng Y-C, Lee D-S, Lin C-F, Chang C-Y. A Novel Sensor Platform Matching the Improved Version of IPMVP Option C for Measuring Energy Savings. Sensors. 2013; 13(5):6811-6831.
Tseng, Yen-Chieh; Lee, Da-Sheng; Lin, Cheng-Fang; Chang, Ching-Yuan. 2013. "A Novel Sensor Platform Matching the Improved Version of IPMVP Option C for Measuring Energy Savings." Sensors 13, no. 5: 6811-6831.