Impact of Hysteresis Control and Internal Thermal Mass on the Energy Efficiency of IoT-Controlled Domestic Refrigerators

Zavvar Sabegh, Mohammad Reza and Bingham, Chris (2019) Impact of Hysteresis Control and Internal Thermal Mass on the Energy Efficiency of IoT-Controlled Domestic Refrigerators. In: 2019 IEEE 7th International Conference on Smart Energy Grid Engineering (SEGE), Oshawa, ON, Canada, 12-14 Aug. 2019, Oshawa, ON, Canada, Canada.

Full content URL: http://doi.org/10.1109/SEGE.2019.8859886

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Impact of Hysteresis Control and Internal Thermal Mass on the Energy Efficiency of IoT-Controlled Domestic Refrigerators

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Item Type:Conference or Workshop contribution (Lecture)
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Abstract

The paper considers the impact of various temperature hysteresis bands on the projected annual energy consumption of a domestic refrigerator when operating empty of product and with an internal product (comprising of 10L of water). Measurements from an IoT system employing a NodeMCU-based Generalized Predictive Control scheme, are used to support the study. A ThingSpeak platform and Smart Wi-Fi plug is used to realize the different temperature hysteresis bands whilst maintaining a given mean nominal internal temperature. Experimental measurements are taken from an IGENIX IG 3920 refrigerator. Results show that by judicious choice of hysteresis band, which is shown to be dependent on the internal product characteristics, annual energy savings of up to 20% can be obtained compared to worst case fixed hysteresis band scenarios.

Keywords:internet of things (IoT), fridge hysteresis control, model predictive control (MPC)
Subjects:H Engineering > H600 Electronic and Electrical Engineering
Divisions:College of Science > School of Engineering
ID Code:39286
Deposited On:09 Jan 2020 09:03

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