Waste heat potentials in the drying section of the paper machine in Umka Cardboard Mill
Апстракт
This paper deals with methods for calculation of potentials of waste heat generated in paper/board production process. For that purpose, the material and heat balance of the cardboard machine at Umka Cardboard Mill has been determined. Field measurements were conducted in order to define the unknown values of process parameters used for calculation in the balance equations and modelling. The focus was given to the cardboard drying section, which consumes most of the energy supplied to the machine. Additional aim of the work presented in the paper was to evaluate the specific energy consumption and the thermal efficiency of all individual energy units within the machine's drying section. The results indicate two main sources of waste heat: waste heat released to the atmosphere with the discharge air from the present waste heat recovery system (14,380 kW), and waste heat released in the hall from the machine and extracted by the hall ventilation system (4,430 kW). Waste heat from both so...urces is characterized by fairly low temperatures 58-75°C and fairly high moisture content (30-40 g/kg). The specific heat consumption and specific steam consumption (consumption per tonne of produced cardboard) of the machine was 1,490 kWh/t and 1.4 t/t, respectively. The thermal efficiency of drying section and coating drying section was 55.6% and 33.6%, respectively. All these figures imply necessity for further waste heat utilization with the aim of improving the efficiency of energy use.
Кључне речи:
waste heat potentials / material balance / heat balance / field measurements / cardboard machineИзвор:
Thermal Science, 2011, 15, 3, 735-747Издавач:
- Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
DOI: 10.2298/TSCI110609066J
ISSN: 0354-9836
WoS: 000296676400013
Scopus: 2-s2.0-84858764307
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Jankes, Goran AU - Tanasić, Nikola AU - Stamenić, Mirjana AU - Adžić, Vuk M. PY - 2011 UR - https://machinery.mas.bg.ac.rs/handle/123456789/1190 AB - This paper deals with methods for calculation of potentials of waste heat generated in paper/board production process. For that purpose, the material and heat balance of the cardboard machine at Umka Cardboard Mill has been determined. Field measurements were conducted in order to define the unknown values of process parameters used for calculation in the balance equations and modelling. The focus was given to the cardboard drying section, which consumes most of the energy supplied to the machine. Additional aim of the work presented in the paper was to evaluate the specific energy consumption and the thermal efficiency of all individual energy units within the machine's drying section. The results indicate two main sources of waste heat: waste heat released to the atmosphere with the discharge air from the present waste heat recovery system (14,380 kW), and waste heat released in the hall from the machine and extracted by the hall ventilation system (4,430 kW). Waste heat from both sources is characterized by fairly low temperatures 58-75°C and fairly high moisture content (30-40 g/kg). The specific heat consumption and specific steam consumption (consumption per tonne of produced cardboard) of the machine was 1,490 kWh/t and 1.4 t/t, respectively. The thermal efficiency of drying section and coating drying section was 55.6% and 33.6%, respectively. All these figures imply necessity for further waste heat utilization with the aim of improving the efficiency of energy use. PB - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd T2 - Thermal Science T1 - Waste heat potentials in the drying section of the paper machine in Umka Cardboard Mill EP - 747 IS - 3 SP - 735 VL - 15 DO - 10.2298/TSCI110609066J ER -
@article{ author = "Jankes, Goran and Tanasić, Nikola and Stamenić, Mirjana and Adžić, Vuk M.", year = "2011", abstract = "This paper deals with methods for calculation of potentials of waste heat generated in paper/board production process. For that purpose, the material and heat balance of the cardboard machine at Umka Cardboard Mill has been determined. Field measurements were conducted in order to define the unknown values of process parameters used for calculation in the balance equations and modelling. The focus was given to the cardboard drying section, which consumes most of the energy supplied to the machine. Additional aim of the work presented in the paper was to evaluate the specific energy consumption and the thermal efficiency of all individual energy units within the machine's drying section. The results indicate two main sources of waste heat: waste heat released to the atmosphere with the discharge air from the present waste heat recovery system (14,380 kW), and waste heat released in the hall from the machine and extracted by the hall ventilation system (4,430 kW). Waste heat from both sources is characterized by fairly low temperatures 58-75°C and fairly high moisture content (30-40 g/kg). The specific heat consumption and specific steam consumption (consumption per tonne of produced cardboard) of the machine was 1,490 kWh/t and 1.4 t/t, respectively. The thermal efficiency of drying section and coating drying section was 55.6% and 33.6%, respectively. All these figures imply necessity for further waste heat utilization with the aim of improving the efficiency of energy use.", publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd", journal = "Thermal Science", title = "Waste heat potentials in the drying section of the paper machine in Umka Cardboard Mill", pages = "747-735", number = "3", volume = "15", doi = "10.2298/TSCI110609066J" }
Jankes, G., Tanasić, N., Stamenić, M.,& Adžić, V. M.. (2011). Waste heat potentials in the drying section of the paper machine in Umka Cardboard Mill. in Thermal Science Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 15(3), 735-747. https://doi.org/10.2298/TSCI110609066J
Jankes G, Tanasić N, Stamenić M, Adžić VM. Waste heat potentials in the drying section of the paper machine in Umka Cardboard Mill. in Thermal Science. 2011;15(3):735-747. doi:10.2298/TSCI110609066J .
Jankes, Goran, Tanasić, Nikola, Stamenić, Mirjana, Adžić, Vuk M., "Waste heat potentials in the drying section of the paper machine in Umka Cardboard Mill" in Thermal Science, 15, no. 3 (2011):735-747, https://doi.org/10.2298/TSCI110609066J . .