Thermal gain of CHP steam generator plants and heat supply systems
- Авторлар: Ziganshina S.1, Kudinov A.1
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Мекемелер:
- Samara State Technical University
- Шығарылым: Том 63, № 8 (2016)
- Беттер: 587-591
- Бөлім: Steam Boilers, Power-Plant Fuel, Burner Facilities, and Boiler Accessories
- URL: https://journals.rcsi.science/0040-6015/article/view/172364
- DOI: https://doi.org/10.1134/S004060151604011X
- ID: 172364
Дәйексөз келтіру
Аннотация
Heating calculation of the surface condensate heat recovery unit (HRU) installed behind the BKZ-420-140 NGM boiler resulting in determination of HRU heat output according to fire gas value parameters at the heat recovery unit inlet and its outlet, heated water quantity, combustion efficiency per boiler as a result of installation of HRU, and steam condensate discharge from combustion products at its cooling below condensing point and HRU heat exchange area has been performed. Inspection results of Samara CHP BKZ-420-140 NGM power boilers and field tests of the surface condensate heat recovery unit (HRU) made on the bimetal calorifier base КСк-4-11 (KSk-4-11) installed behind station no. 2 Ulyanovsk CHP-3 DE-10-14 GM boiler were the basis of calculation. Integration of the surface condensation heat recovery unit behind a steam boiler rendered it possible to increase combustion efficiency and simultaneously decrease nitrogen oxide content in exit gases. Influence of the blowing air moisture content, the excess-air coefficient in exit gases, and exit gases temperature at the HRU outlet on steam condensate amount discharge from combustion products at its cooling below condensing point has been analyzed. The steam condensate from HRU gases is offered as heat system make-up water after degasification. The cost-effectiveness analysis of HRU installation behind the Samara CHP BKZ-420-140 NGM steam boiler with consideration of heat energy and chemically purified water economy has been performed. Calculation data for boilers with different heat output has been generalized.
Авторлар туралы
S. Ziganshina
Samara State Technical University
Хат алмасуға жауапты Автор.
Email: svet.zig@yandex.ru
Ресей, ul. Molodogvadreiskaya 244, Samara, 443100
A. Kudinov
Samara State Technical University
Email: svet.zig@yandex.ru
Ресей, ul. Molodogvadreiskaya 244, Samara, 443100