Dataset for the characterisation of thermal stratification in horizontally configured electric water heaters

A test station was designed and built to measure the thermal stratification (vertical thermal gradients) in a horizontal 150 L electric water heater storage device for different external environmental and user-emulating inputs, ambient temperature, inlet water temperature, water draw flow rate, ther...

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Main Authors: P.D. van Schalkwyk, J.A.A. Engelbrecht, M.J. Booysen
Format: Article
Language:English
Published: Elsevier 2024-04-01
Series:Data in Brief
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352340924000556
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author P.D. van Schalkwyk
J.A.A. Engelbrecht
M.J. Booysen
author_facet P.D. van Schalkwyk
J.A.A. Engelbrecht
M.J. Booysen
author_sort P.D. van Schalkwyk
collection DOAJ
description A test station was designed and built to measure the thermal stratification (vertical thermal gradients) in a horizontal 150 L electric water heater storage device for different external environmental and user-emulating inputs, ambient temperature, inlet water temperature, water draw flow rate, thermostat temperature and heating coil active time. Stratification measurement consists of 66 temperature sensors that coarsely map three-dimensional temperature gradients within the horizontally configured heating device, under different operational conditions. Other significant temperatures such as inlet, outlet, ambient, thermostat feedback, and wall temperatures were also recorded. An ambient temperature control (climatic) chamber was built to emulate the environmental conditions.A custom-built controller was used to control thermal actuators, the power to the thermostat and the state of the outlet valve. In addition, it also acted as a data acquisition system, responsible for recording all relevant sensor data that was present in the system as well as the test station operating states.The dataset includes heating and thermostat control data and the corresponding thermal stratification profiles under static operating conditions (no water draw) at different ambient temperatures (20 °C, 30 °C, and 40 °C).Additionally, dynamic operating conditions (with water draw) are recorded, maintaining inlet water temperatures at approximately 10 °C and 30 °C. The dataset highlights thermal profiles with and without thermostat control and ambient cooling data without thermostat control.Existing research primarily focuses on vertically oriented water heaters, with limited attention to thermal modelling and data acquisition in horizontal configurations. This work provides valuable insights into the internal thermal dynamics of horizontally configured electric water heater storage devices, widely used worldwide.
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spelling doaj.art-a8d08016ef4f45769d3eaa25c45d48d02024-03-20T06:09:38ZengElsevierData in Brief2352-34092024-04-0153110082Dataset for the characterisation of thermal stratification in horizontally configured electric water heatersP.D. van Schalkwyk0J.A.A. Engelbrecht1M.J. Booysen2Faculty of Engineering, Stellenbosch University, Joubert street, Stellenbosch, 7660, South AfricaFaculty of Engineering, Stellenbosch University, Joubert street, Stellenbosch, 7660, South AfricaCorresponding author.; Faculty of Engineering, Stellenbosch University, Joubert street, Stellenbosch, 7660, South AfricaA test station was designed and built to measure the thermal stratification (vertical thermal gradients) in a horizontal 150 L electric water heater storage device for different external environmental and user-emulating inputs, ambient temperature, inlet water temperature, water draw flow rate, thermostat temperature and heating coil active time. Stratification measurement consists of 66 temperature sensors that coarsely map three-dimensional temperature gradients within the horizontally configured heating device, under different operational conditions. Other significant temperatures such as inlet, outlet, ambient, thermostat feedback, and wall temperatures were also recorded. An ambient temperature control (climatic) chamber was built to emulate the environmental conditions.A custom-built controller was used to control thermal actuators, the power to the thermostat and the state of the outlet valve. In addition, it also acted as a data acquisition system, responsible for recording all relevant sensor data that was present in the system as well as the test station operating states.The dataset includes heating and thermostat control data and the corresponding thermal stratification profiles under static operating conditions (no water draw) at different ambient temperatures (20 °C, 30 °C, and 40 °C).Additionally, dynamic operating conditions (with water draw) are recorded, maintaining inlet water temperatures at approximately 10 °C and 30 °C. The dataset highlights thermal profiles with and without thermostat control and ambient cooling data without thermostat control.Existing research primarily focuses on vertically oriented water heaters, with limited attention to thermal modelling and data acquisition in horizontal configurations. This work provides valuable insights into the internal thermal dynamics of horizontally configured electric water heater storage devices, widely used worldwide.http://www.sciencedirect.com/science/article/pii/S2352340924000556Thermostatically controlled loadsEnergyThermal energy storageTemperatureThermal responseLoad control
spellingShingle P.D. van Schalkwyk
J.A.A. Engelbrecht
M.J. Booysen
Dataset for the characterisation of thermal stratification in horizontally configured electric water heaters
Data in Brief
Thermostatically controlled loads
Energy
Thermal energy storage
Temperature
Thermal response
Load control
title Dataset for the characterisation of thermal stratification in horizontally configured electric water heaters
title_full Dataset for the characterisation of thermal stratification in horizontally configured electric water heaters
title_fullStr Dataset for the characterisation of thermal stratification in horizontally configured electric water heaters
title_full_unstemmed Dataset for the characterisation of thermal stratification in horizontally configured electric water heaters
title_short Dataset for the characterisation of thermal stratification in horizontally configured electric water heaters
title_sort dataset for the characterisation of thermal stratification in horizontally configured electric water heaters
topic Thermostatically controlled loads
Energy
Thermal energy storage
Temperature
Thermal response
Load control
url http://www.sciencedirect.com/science/article/pii/S2352340924000556
work_keys_str_mv AT pdvanschalkwyk datasetforthecharacterisationofthermalstratificationinhorizontallyconfiguredelectricwaterheaters
AT jaaengelbrecht datasetforthecharacterisationofthermalstratificationinhorizontallyconfiguredelectricwaterheaters
AT mjbooysen datasetforthecharacterisationofthermalstratificationinhorizontallyconfiguredelectricwaterheaters