| Issue |
E3S Web Conf.
Volume 375, 2023
8th International Conference on Energy Science and Applied Technology (ESAT 2023)
|
|
|---|---|---|
| Article Number | 01003 | |
| Number of page(s) | 4 | |
| Section | Fossil Energy & Geological Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/202337501003 | |
| Published online | 27 March 2023 | |
Study on thermodynamic system characteristics of thermoelectric units under variable operating conditions
State Grid Shandong Electric Power Research Institute,
Jinan, China
* Corresponding author: dkyzhongziwei@163.com
The variable working condition of thermal system refers to that the working condition in the system changes, deviates from the design working condition or deviates from a certain reference working condition. There are various reasons for the change of thermal system’s off design condition, including the change of unit heat load, the change of thermal system and equipment, and the change of steam parameters and reheat parameters. The purpose of variable condition calculation of thermodynamic system is to determine the steam parameters of each extraction port and exhaust end of the turbine and the corresponding parameters of the regenerative system. Its essence is to determine the new expansion process line and system parameters of the turbine. This is the basis for the safety and reliability analysis of the system under off design conditions and the calculation and analysis of economic indicators. Through the research on the electrothermal coupling characteristics of thermoelectric units under variable operating conditions, it can provide data support for the power grid dispatching department to master the electrical output characteristics of thermoelectric units in heating seasons.
Key words: Thermoelectric unit / Off design condition calculation / thermodynamic system
© 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 (http://creativecommons.org/licenses/by/4.0/).
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