A Study on the Arrangement of Outer Steam Cooler for 1000MW Double Reheat Ultra-Supercritical Unit

Weijun Mi, Haiwen Chen, Wenfeng Fu

2018

Abstract

Taking the 1000MW double reheat ultra-supercritical unit as an example, based on analysis of the specific fuel consumption, the effects of following arrangement modes of outer steam cooler (OSC) on the energy consumption of unit are studied, such as the single series arrangement, double series arrangement and double parallel arrangement, etc., and subsequently the optimum arrangement mode of OSCs is obtained, in which case the variation law of specific fuel consumption is analyzed for each part of the thermal system and for the whole unit. Results show that by adopting the OSCs, the feed water temperature is raised, the irreversible loss of boiler is reduced, thus lowering the specific fuel consumption of unit. In the single arrangement mode, the specific fuel consumption can be reduced by 0.632g/kWh at most when the OSC is arranged at No.2 high pressure (HP) regenerative heater (RH);whereas in the double arrangement mode, the specific fuel consumption can be reduced by 1.122g/kWh at most when the coolers are arranged in series at RH2 and RH4.

Paper Citation

in Harvard Style

Mi W., Chen H. and Fu W. (2018). A Study on the Arrangement of Outer Steam Cooler for 1000MW Double Reheat Ultra-Supercritical Unit.In 3rd International Conference on Electromechanical Control Technology and Transportation - Volume 1: ICECTT, ISBN 978-989-758-312-4, pages 59-62. DOI: 10.5220/0006964900590062

in Bibtex Style

@conference{icectt18,
author={Weijun Mi and Haiwen Chen and Wenfeng Fu},
title={A Study on the Arrangement of Outer Steam Cooler for 1000MW Double Reheat Ultra-Supercritical Unit},
booktitle={3rd International Conference on Electromechanical Control Technology and Transportation - Volume 1: ICECTT,},
year={2018},
pages={59-62},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006964900590062},
isbn={978-989-758-312-4},
}

in EndNote Style

TY - CONF

JO - 3rd International Conference on Electromechanical Control Technology and Transportation - Volume 1: ICECTT,
TI - A Study on the Arrangement of Outer Steam Cooler for 1000MW Double Reheat Ultra-Supercritical Unit
SN - 978-989-758-312-4
AU - Mi W.
AU - Chen H.
AU - Fu W.
PY - 2018
SP - 59
EP - 62
DO - 10.5220/0006964900590062