TY - GEN
T1 - Coal combustion characteristic in vibrating grate stoker simulator
AU - Hidayat, Taopik
AU - Cahyadi,
AU - Nugroho, Yulianto Sulistyo
N1 - Funding Information:
The authors would like to thank the financial support provided by Universitas Indonesia through the PITTA 2017 funding scheme under Grant no. 858/UN2.R3.1/HKP.05.00/2017 managed by the Directorate for Research and Public Services (DRPM) Universitas Indonesia. Mr. Taopik Hidayat acknowledges the scholarship and financial support of Beasiswa RISTEKDIKTI 2015 from Ministry of Research, Technology, and Higher Education of Republic of Indonesia.
Publisher Copyright:
© 2018 Author(s).
PY - 2018/8/16
Y1 - 2018/8/16
N2 - Stoker fired boilers have been used widely for small scale power plant in isolated region or small island in Indonesia and for industries. Nevertheless, stoker fired boilers face some operational problems related to burning low rank coal. Water cooled vibrating grate stoker has potential to minimize the problem compared to traveling grate stoker. In this study, 15 kW (th) vibrating grate stoker simulator has been developed for characterizing combustion in stoker fired boiler. Combustion characteristic such as burning out time and combustion rate can be evaluated for both fixed grate and vibrating grate types. Experimental results plotted in horizontal temperature profiles indicate important combustion steps, i.e. drying, volatile release and char burning. Peak temperature while burning sub-bituminous coal was 861°C, higher than lignite coal of 647°C. In vibrating grate, the combustion rate of sub-bituminous and lignite coal in vibrating grate increase 56.5% and 25.9%, respectively, compared with in fixed grate. Application of vibrating grate instead of fixed grate in boiler can minimize the furnace size room because of higher heat release rate per area.
AB - Stoker fired boilers have been used widely for small scale power plant in isolated region or small island in Indonesia and for industries. Nevertheless, stoker fired boilers face some operational problems related to burning low rank coal. Water cooled vibrating grate stoker has potential to minimize the problem compared to traveling grate stoker. In this study, 15 kW (th) vibrating grate stoker simulator has been developed for characterizing combustion in stoker fired boiler. Combustion characteristic such as burning out time and combustion rate can be evaluated for both fixed grate and vibrating grate types. Experimental results plotted in horizontal temperature profiles indicate important combustion steps, i.e. drying, volatile release and char burning. Peak temperature while burning sub-bituminous coal was 861°C, higher than lignite coal of 647°C. In vibrating grate, the combustion rate of sub-bituminous and lignite coal in vibrating grate increase 56.5% and 25.9%, respectively, compared with in fixed grate. Application of vibrating grate instead of fixed grate in boiler can minimize the furnace size room because of higher heat release rate per area.
UR - http://www.scopus.com/inward/record.url?scp=85052388542&partnerID=8YFLogxK
U2 - 10.1063/1.5050002
DO - 10.1063/1.5050002
M3 - Conference contribution
AN - SCOPUS:85052388542
SN - 9780735417175
T3 - AIP Conference Proceedings
BT - Proceedings of the 9th International Conference on Thermofluids 2017, THERMOFLUID 2017
A2 - Hohne, Thomas
A2 - Pranoto, Indro
A2 - Deendarlianto, null
A2 - Majid, Akmal Irfan
A2 - Wiranata, Ardi
A2 - Widyaparaga, Adhika
A2 - Takei, Masahiro
PB - American Institute of Physics Inc.
T2 - 9th International Conference on Thermofluids 2017, THERMOFLUID 2017
Y2 - 9 November 2017 through 10 November 2017
ER -