Open AccessAutomatic testing system to evaluate the energy efficiency of electric storage water heaters
Author(s) -
Jianfeng Yu,
Jianzhong Fu,
Feng Guo,
Yaocong Xie
Publication year - 2018
Publication title -
measurement + control/measurement and control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.286
H-Index - 21
eISSN - 2051-8730
pISSN - 0020-2940
DOI - 10.1177/0020294018783441
Subject(s) - efficient energy use , workload , software , computer science , process (computing) , energy storage , computer data storage , energy (signal processing) , automotive engineering , data acquisition , reliability engineering , process engineering , embedded system , real time computing , simulation , engineering , computer hardware , electrical engineering , operating system , power (physics) , statistics , physics , mathematics , quantum mechanics
Background: The energy efficiency of electric storage water heaters is a concern for enterprises and customers because it is beneficial for energy saving. To decrease the workload of testing personnel and improve the testing efficiency, an automatic testing system for evaluating the energy efficiency performance of electric storage water heaters has been designed.Methods: The complete testing system includes a water supply subsystem, hot water outlet subsystem, hardware subsystem, and software subsystem. An application program was developed using Visual Basic to acquire the sensor data and transmit it in real time to a database server. The energy efficiency evaluating process was controlled by the application software,by combining the data acquisition technology, communication technology, and program logical control technology.Results: The designed system can run automatically and achieve reliable tests, two important parameters including the standing loss per 24 h and the hot water withdrawal rate were obtained.Conclusion: This system can be applied to evaluate the energy efficiency grades of electric storage water heaters.