Experimental Study and Analysis of Condenser Performance under Dual Backpressure Operation Mode
- DOI
- 10.2991/iccte-16.2016.174How to use a DOI?
- Keywords
- steam turbine unit, condenser modification, high backpressure modification, dual backpressure operation, cooling water heat supply.
- Abstract
The condenser modification of a 150MW unit for high backpressure cooling water heat supply is introduced in this paper. Economy characteristics of the transformed condenser are calculated using the high and low backpressure operation data. The condenser terminal difference is 2.354ºC under high backpressure condition, which is lower than the design value (4ºC). The condenser terminal differences under three low backpressure conditions are 6.535ºC, 5.358ºC and 5.148ºC respectively, and the corrected values of it by inlet water flow and temperature are 8.721ºC,7.179ºC and 6.724ºC all of which are higher than the design value (4ºC) and those before modification. The total condenser heat-transfer coefficient is 2.183kW/(m2.ºC), lower than the mean value before modification which is 3.388 kW/(m2.ºC). It is shown that with the condenser modification, the unit safety can be guaranteed during normal operation, yet the economy parameters are poorer than design values, being lower than those before modification. In 125MW load condition, the condenser back pressure after modification is 0.9kPa higher than that before modification.
- Copyright
- © 2016, 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/).
Cite this article
TY - CONF AU - Guangyao Liu AU - Xiewei Cheng AU - Xuedong Wang PY - 2016/01 DA - 2016/01 TI - Experimental Study and Analysis of Condenser Performance under Dual Backpressure Operation Mode BT - Proceedings of the 2016 International Conference on Civil, Transportation and Environment PB - Atlantis Press SP - 1007 EP - 1014 SN - 2352-5401 UR - https://doi.org/10.2991/iccte-16.2016.174 DO - 10.2991/iccte-16.2016.174 ID - Liu2016/01 ER -