A novel spatiotemporal home heating controller design: system emulation and field testing

We have developed a spatiotemporal heating control algorithm for use in homes. This system utilises a combination of relatively low-tech hardware interfaced with electric heating systems and a smartphone interface to this hardware, and a central server that progressively learns users’ room-specific...

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Main Authors: Kruusimagi, Martin, Sharples, Sarah, Robinson, Darren
Format: Article
Published: Elsevier 2018
Subjects:
Online Access:https://eprints.nottingham.ac.uk/50026/
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author Kruusimagi, Martin
Sharples, Sarah
Robinson, Darren
author_facet Kruusimagi, Martin
Sharples, Sarah
Robinson, Darren
author_sort Kruusimagi, Martin
building Nottingham Research Data Repository
collection Online Access
description We have developed a spatiotemporal heating control algorithm for use in homes. This system utilises a combination of relatively low-tech hardware interfaced with electric heating systems and a smartphone interface to this hardware, and a central server that progressively learns users’ room-specific presence profiles and thermal preferences. This paper describes the associated spatiotemporal heating control algorithm, its evaluation utilising the dynamic building performance simulation software EnergyPlus, and a longitudinal deployment of the algorithm controlling a quasi-autonomous spatiotemporal home heating system in three domestic homes. In this we focus on the prediction of occupants’ presence and preferred set-point temperature as well as on the calculation of optimum start time and the utilisation of user-scheduled absences; this for two comfort strategies: to maximise comfort and to minimise discomfort. The former aims to deliver conditions equating to a ‘neutral’ thermal sensation, whereas the latter targets a ‘slightly cool’ sensation with corresponding heating energy savings. Simulation results confirmed that the algorithm functions as intended and that it is capable of reducing energy demand by a factor of seven compared with EnergyStar recommended settings for programmable thermostats. Field study results align with these findings and highlight the possibility to reduce energy under the minimise discomfort strategy without compromising on occupants’ thermal comfort.
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spelling nottingham-500262020-05-04T19:35:21Z https://eprints.nottingham.ac.uk/50026/ A novel spatiotemporal home heating controller design: system emulation and field testing Kruusimagi, Martin Sharples, Sarah Robinson, Darren We have developed a spatiotemporal heating control algorithm for use in homes. This system utilises a combination of relatively low-tech hardware interfaced with electric heating systems and a smartphone interface to this hardware, and a central server that progressively learns users’ room-specific presence profiles and thermal preferences. This paper describes the associated spatiotemporal heating control algorithm, its evaluation utilising the dynamic building performance simulation software EnergyPlus, and a longitudinal deployment of the algorithm controlling a quasi-autonomous spatiotemporal home heating system in three domestic homes. In this we focus on the prediction of occupants’ presence and preferred set-point temperature as well as on the calculation of optimum start time and the utilisation of user-scheduled absences; this for two comfort strategies: to maximise comfort and to minimise discomfort. The former aims to deliver conditions equating to a ‘neutral’ thermal sensation, whereas the latter targets a ‘slightly cool’ sensation with corresponding heating energy savings. Simulation results confirmed that the algorithm functions as intended and that it is capable of reducing energy demand by a factor of seven compared with EnergyStar recommended settings for programmable thermostats. Field study results align with these findings and highlight the possibility to reduce energy under the minimise discomfort strategy without compromising on occupants’ thermal comfort. Elsevier 2018-05-01 Article PeerReviewed Kruusimagi, Martin, Sharples, Sarah and Robinson, Darren (2018) A novel spatiotemporal home heating controller design: system emulation and field testing. Building and Environment, 135 . pp. 10-30. ISSN 1873-684X Spatiotemporal heating control algorithm thermal comfort user experience home automation https://www.sciencedirect.com/science/article/pii/S0360132318300994 doi:10.1016/j.buildenv.2018.02.027 doi:10.1016/j.buildenv.2018.02.027
spellingShingle Spatiotemporal heating
control algorithm
thermal comfort
user experience
home automation
Kruusimagi, Martin
Sharples, Sarah
Robinson, Darren
A novel spatiotemporal home heating controller design: system emulation and field testing
title A novel spatiotemporal home heating controller design: system emulation and field testing
title_full A novel spatiotemporal home heating controller design: system emulation and field testing
title_fullStr A novel spatiotemporal home heating controller design: system emulation and field testing
title_full_unstemmed A novel spatiotemporal home heating controller design: system emulation and field testing
title_short A novel spatiotemporal home heating controller design: system emulation and field testing
title_sort novel spatiotemporal home heating controller design: system emulation and field testing
topic Spatiotemporal heating
control algorithm
thermal comfort
user experience
home automation
url https://eprints.nottingham.ac.uk/50026/
https://eprints.nottingham.ac.uk/50026/
https://eprints.nottingham.ac.uk/50026/