NWU Institutional Repository

The optimized scheduling of a sanitary water heating system for commercial high rise apartment buildings

Loading...
Thumbnail Image

Date

Journal Title

Journal ISSN

Volume Title

Publisher

IEEE

Abstract

The installation of energy efficient water heaters in the residential and commercial sectors of South Africa have drawn much attention for more than a decade due to the energy crisis in South Africa. Most of the installations are however focused on the energy savings potential of the heating equipment rather than the efficient control of the water heating systems. Two high rise apartment buildings with heat pump water heaters as the primary installed heating equipment, have been evaluated to determine the actual hot water consumption of the respective buildings. The consumption profiles are used as input for the hot water scheduler, presented in this paper, which optimizes the control of a predefined water heating system. The scheduler can be utilized to effectively determine the required size of water heating equipment along with an optimum control solution for the heat pump units. By scheduling the operational hours of the heat pump units in combination with the available hot water storage capacity and the time-of-use tariff structure of the South African electrical utility, Eskom, additional energy savings can be achieved. Potential simulated energy savings of up to 55% are possible by utilizing the hot water scheduler based on the actual measured hot water consumption of the two high rise apartment buildings

Description

Citation

Kukard, W.C. & Van Eldik, M. 2016. The optimized scheduling of a sanitary water heating system for commercial high rise apartment buildings. International Conference on the Domestic Use of Energy (DUE), 30-31 Mar: # 7466698. [https://doi.org/10.1109/DUE.2016.7466698]

Endorsement

Review

Supplemented By

Referenced By