| Issue |
E3S Web of Conf.
Volume 406, 2023
2023 9th International Conference on Energy Materials and Environment Engineering (ICEMEE 2023)
|
|
|---|---|---|
| Article Number | 01020 | |
| Number of page(s) | 6 | |
| Section | Biological Device and Material Structure Analysis | |
| DOI | https://doi.org/10.1051/e3sconf/202340601020 | |
| Published online | 31 July 2023 | |
A Design Method to Diagnose Predicted and Measured Energy Performance Gap of Central Cooling Plant Based on Operation Mode
1 Architectural Research and Design Institute of Southeast University, Nanjing 210096, China
2 School of Energy and Environment, Southeast University, Nanjing 210096, China
Operation modes indicate the characteristics of the entire cooling plant, and are considered to be an underlying factor of energy performance gap. Operation mode difference between the simulation model and actual system is constituted by the differences in mode form, mode frequency, and mode energy consumption jointly. In the numerical model of ECDR, the energy performance gap is the function of the components of the operation mode difference. Based on the model, a central cooling plant case is analysed. Five typical mode forms for the simulation model and six for the actual system are extracted. For the corresponding mode form, due to the significant differences in cooling load characteristics and chiller energy efficiency, deviations in mode frequency are up to 55.6%, and the deviations in mode energy consumption ranges from -0.9% to 19.4%.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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