scholarly journals KALKULASI KEBUTUHAN UDARA PEMBAKARAN PADA TURBIN GAS PG-9001A SEBAGAI PENYEDIA PANAS UNTUK PEMBANGKITAN STEAM DI HRSG B-9203A BERDASARKAN KONDISI FIRED MODE

2021 ◽  
Vol 18 (02) ◽  
Author(s):  
M. Fiqih Alif Utama ◽  
Zulkifli ,
Keyword(s):  

Instalasi Kombinasi (Combyne Cylcle) adalah sebuah proses pembangkitan energi yang menggabungkan turbin gas, yang bertugas membangkitkan energi listrik dan Boiler untuk pembangkitan steam, dimana gas bekas yang keluar dari turbin gas yang masih memiliki enthalpy dan temperatur yang cukup tinggi dimanfaatkan sebagai energi atau udara pembakaran (tambahan burner) pada boiler untuk mengubah air menjadi uap (steam). Pengamatan ini bertujuan untuk menghitung  seberapa besar kontribusi gas buang dari turbin  terhadap efisiensi dari boiler melalui perhitungan neraca massa dan neraca energi dari gas buang dan air umpan boiler. Perhitungan kebutuhan udara pembakaran pada turbin menjadi salah satu hal yang penting guna melihat seberapa besar laju alir massa dari gas buang dan pengaruhnya terhadap pengoptimalan panas pada HRSG. Dari hasil perhitungan didapat kebutuhan udara pembakaran  pada  turbin  sebesar  72.668,2657  Kg/h  dan  pada  burner  sebesar 3.862,6548  Kg/h,  sehingga  total  laju  aliran  massa  gas  buang  didapat  sebesar 279.787,7544 Kg/h, untuk total laju aliran energi panas gas buang turbin dan burner yang diberikan terhadap HRSG sebesar 268.980.660,5674 kJ/h dengan laju aliran energi panas yang diterima HRSG sebesar 201.081.031,4 kJ/h dan besar panas yang hilang mencapai 67.899.629,1674 kJ/h. Sehingga didapatlah efisiensi HRSG berdasarkan kondisi fired mode sebesar 74,76 %.Keyword : Boiler, Burner, HRSG, Steam dan Turbin.

Author(s):  
Hyukjin Oh ◽  
Kalyan Annamalai ◽  
John Sweeten

Reburning of cattle manure-based biomass (CB) with coals is performed to develop environmentally friendly thermo-chemical energy conversion technologies for NOx reductions and Hg captures and removals from existing pulverized coal-fired power plants. A small-scale (30 kWth) down-fired boiler burner facility has been used for burning most types of pulverized solid fuels including coal and biomass. Blends of CB and coals are used as reburn fuels. It has hypothesized that a major fraction of the fuel-N in the CB is released in the form of NH3 or urea. In the reburn process, therefore, it is believed that NOx produced by coal is reduced to molecular nitrogen by NH3 released from the pyrolysis of CB under slightly fuel-rich conditions. The CB also contains larger amounts of chlorine (Cl) than most types of coals. Hence gaseous mercury (Hg) in the flue gas is oxidized by large amounts of Cl species mainly from the CB combustion. Consequently, the results indicate that the CB can serve as a very effective fuel supplementing coals on NOx reductions and Hg captures and removals in pulverized coal-fired boilers. It was also found that the auto-gasification occurred during the pyrolysis due to the oxygen available in the fuel mainly helped for burning fixed carbon.


Fuel ◽  
2003 ◽  
Vol 82 (10) ◽  
pp. 1195-1200 ◽  
Author(s):  
K. Annamalai ◽  
J. Sweeten ◽  
M. Freeman ◽  
M. Mathur ◽  
W. O'Dowd ◽  
...  

Author(s):  
B. Thien ◽  
K. Annamalai ◽  
J. Sweeten

The co-firing of animal biomass fuels with coal has the potential to solve both biomass disposal problems, and reduce net CO2 emissions. The high flame temperatures produced by coal will allow the low heating value, high ash biomass to be completely burnt. Unfortunately, the animal biomass fuels are high in nitrogen and sulfur, which could lead to greater air pollution levels in the form of NO and SO2. To determine the effect of switching to 90:10 Coal:biomass blend on combustion efficiency and emissions, the blends were fired in a 30 kW (100,000 BTU/hr) laboratory scale boiler burner. The results are presented along with the their relation to the fuel properties.


2012 ◽  
Vol 55 (2) ◽  
pp. 681-688 ◽  
Author(s):  
B. F. Thien ◽  
B. D. Lawrence ◽  
J. M. Sweeten ◽  
K. Annamalai

Author(s):  
Ziru Zhu ◽  
Yan Xiong ◽  
Xianglong Zheng ◽  
Weijie Chen ◽  
Baohe Ren ◽  
...  

Author(s):  
Yan Yang ◽  
Junjie Zhang ◽  
Xiaobin Liu ◽  
Li Hongxia ◽  
Hongtao Wang
Keyword(s):  

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