Analisa Pengaruh Excess Air Terhadap Efisiensi Pembakaran Boiler Jenis Pulverizer Coal 230 T/H

Wildan Muholad, Muhammad Hasbi, Nanang Endriatno

Abstract


To save on coal consumption in PLTU (Steam Power Plant), it is necessary to increase boiler efficiency. The factors that can affect boiler efficiency include: flue gas temperature, fuel specification, excess air, ambient temperature, radiation and convection losses. By changing the value of excess air in this case the percentage of oxygen (4% to 4.5%) will affect the efficiency of the boiler. Changing the value of excess air also results in a change in the electrical power used by the auxiliary system in the boiler. Calculation of boiler efficiency with the direct method by testing 2 times on each oxygen percentage value of 4% and 4.5. Efficiency increased 0.94%, from 80.76% to 81.7% in test 1 and increased 1.02%, from 90.81% to 91.83% in test II. The power usage increased by 27.959 Kw in the 1st test and increased to 26.663 Kw in the test II.

Kata kunci: Boiler, efficiency, excess air, PLTU

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Penanggung Jawab: Dekan Fakultas Teknik Universitas Halu Oleo

Pimpinan Redaksi: Aminur, ST., M.Eng

Mitra Bestari: DR. Akhyar, S.T., M.Eng.
Jurusan Teknik Mesin, Fakultas Teknik, Universitas Syiah Kuala, Banda Aceh 

Dr. Muhammad Syukron, S.T.,M.Eng. 
Jurusan Teknik Mesin, FakultasTeknik, Universitas Muhammadiyah, Surakarta

Dr. Eng. Sudarsono, S.T.,M.Eng. 
Jurusan Teknik Mesin, FakultasTeknik, Universitas Halu Oleo, Kendari

Dr. Eng. Lukas Kano Mangalla, S.T.,M.T. 
Jurusan Teknik Mesin, FakultasTeknik, Universitas Halu Oleo, Kendari

Dr. Eng. Nanang Endriatno, S.T.,M.T. 
Jurusan Teknik Mesin, FakultasTeknik, Universitas Halu Oleo, Kendari

Dewan Editor: Ir. H. Ridway Balaka,M.Eng.
Ir. Salimin, M.T.
Muhammad Hasbi, ST., M.T.
Budiman Sudia, S.T., M.T
Jenny Delly, S.T., M.T. 
La Hasanudin, S.S.T., M.T.
Raden Rinova Sisworo, S.T., M.Eng.
Prinob Aksar, S.T, M.T.

Penerbit: Jurusan Teknik Mesin Fakultas Teknik  

Universitas Halu Oleo
Kampus Hijau Bumi Tri Dharma Jl. HEA. Mokodompit
Anduonohu Telp.(0401)3194347.
e-mail : jurnal.enthalpy.uho@gmail.com

e-ISSN: 2502-8944