A computationally inexpensive energy model for horizontal electric water heaters with scheduling
| dc.contributor.author | Nel, P. J. C. | en_ZA |
| dc.contributor.author | Booysen, M. J. | en_ZA |
| dc.contributor.author | Van der Merwe, A. B. | en_ZA |
| dc.date.accessioned | 2016-04-05T07:55:28Z | |
| dc.date.available | 2016-04-05T07:55:28Z | |
| dc.date.issued | 2016-03 | |
| dc.description.abstract | ENGLISH ABSTRACT: Electric water heaters (EWHs) remain one of the main contributors to energy consumption in countries where they are used. EWH models serve as a step towards achieving optimised control, and can also be used to inform users of expected savings due to changes, if the model is energy-based. Various models have been proposed, but none of them include more than half of the six key features that the model presented in this paper supports: horizontal orientation; schedule control; low computational complexity; validation of the model; multinodal stratification; and multinodal standing losses. The presented model is validated against six datasets: four comprising 900 hours with multiple water usage events; and two with only standing losses. The results show that the model estimates energy consumption over ten days including usage with an error of less than 2% and 5% for schedule control and thermostat control respectively. The simulation model is simple enough to execute ten days of simulation in less than 100 milliseconds on a standard desktop machine, 150 times faster than a prominent model from literature, making it also suitable for large scale simulations or for use on mobile devices. | en_ZA |
| dc.description.abstract | AFRIKAANSE OPSOMMING: Geen opsomming beskikbaar | af_ZA |
| dc.identifier.uri | http://hdl.handle.net/10019.1/98896 | |
| dc.language.iso | en_ZA | en_ZA |
| dc.subject | Electric water heaters | en_ZA |
| dc.subject | Energy consumption | en_ZA |
| dc.subject | Power supply, Electric | en_ZA |
| dc.subject | Blackouts, Electric power | en_ZA |
| dc.subject | Demand-side management (Electric utilities) | en_ZA |
| dc.title | A computationally inexpensive energy model for horizontal electric water heaters with scheduling | en_ZA |
| dc.type | Article | en_ZA |