Quantitative Analysis on Heat Storage Capacity in Steam and Metal of Ultra-Supercritical Once-Through Boiler

DOI

10.2991/mseee-18.2018.41How to use a DOI?

Keywords

once-through boiler, ultra-supercritical and subcritical, heat storage coefficient.

Abstract

As an increasing number of power plants are engaged in grid peaking operations, the utility boiler working condition varies frequently and violently, which demands a more flexible and accurate control system. In present investigation, a model measuring heat storage capacity in steam and metal with operating data of 1000MW unit is proposed. In the scope of investigation, calculated result shows the overall heat coefficient in subcritical working condition is 27% more than that in supercritical condition. The heat storage coefficient distribution of steam and metal varies with the change of working condition, and detailed information is exhibited. Moreover, reheat steam system is also in the scope of present investigation which is rarely reported.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Tianyu Zhang
AU  - Lele Ma
AU  - Xi Zhao
AU  - Chengyong Liu
AU  - Zhenning Zhao
PY  - 2018/08
DA  - 2018/08
TI  - Quantitative Analysis on Heat Storage Capacity in Steam and Metal of Ultra-Supercritical Once-Through Boiler
BT  - Proceedings of the 2nd International Conference on Material Science, Energy and Environmental Engineering (MSEEE 2018)
PB  - Atlantis Press
SP  - 231
EP  - 236
SN  - 2352-5401
UR  - https://doi.org/10.2991/mseee-18.2018.41
DO  - 10.2991/mseee-18.2018.41
ID  - Zhang2018/08
ER  -