Gate to gate life cycle assessment of plywood manufacturing in India

V.  Prakash; S. K.  Nath; D.  Sujatha; D. N.  Uday; B. S.  Mamatha; M. C.  Kiran; Narasimhamurthy

doi:10.59400/eco2798

V. Prakash Institute of Wood Science and Technology, Bengaluru 560003, India
S. K. Nath Joint Director Erstwhile IPIRTI, Bengaluru 560022, India
D. Sujatha Institute of Wood Science and Technology, Bengaluru 560003, India
D. N. Uday Institute of Wood Science and Technology, Bengaluru 560003, India
B. S. Mamatha Institute of Wood Science and Technology, Bengaluru 560003, India
M. C. Kiran Institute of Wood Science and Technology, Bengaluru 560003, India
Narasimhamurthy Institute of Wood Science and Technology, Bengaluru 560003, India

Article ID: 2798

DOI: https://doi.org/10.59400/eco2798

Keywords: life cycle analysis; green building material; carbon storage; plywood; greenhouse gases (GHG)

Abstract

A gate-to-gate life cycle assessment (LCA) study was conducted for 1 cubic meter (m³) of finished plywood with density 600 kg/m³ for four different plywood manufacturing facilities based on their location, production capacity and the variety of products manufactured. Primary data on inputs (raw materials, energy consumption, etc.) and the outputs (plywood and the byproducts) were collected through questionnaires by interacting with staff working in different sections of the production plants. Primary data collected were used to simulate the plywood manufacturing process in GaBi (software for LCA) and secondary data was sourced from the GaBi professional database 2011 to ascertain its environmental impacts in terms of material use and emissions. Primary energy demand, greenhouse gases (GHG) and other organic and inorganic emissions have been determined for various processes involved in plywood production. Carbon dioxide (CO₂) emissions broken down by individual processes as biogenic and fossil emissions and also (CO₂) sequestered during each process by the way of output product have also been carefully assessed. Major electrical energy consumption is found to be in veneer peeling, veneer drying, and hot pressing of plywood, whereas veneer drying is found to be thermal energy intensive, which gives impetus to develop energy-efficient veneer dryers with automation. Material recovery varies from factory to factory for various reasons, such as the quality of the logs, the skills of the laborers/machine operators, etc. The highest material recovery of all the factories considered in this study is found to be 63%, which is a clear indication of ample scope for improvements. Variation in the electrical and thermal energy was observed for different production facilities, mainly due to the production practices and extent of mechanization involved. It is inferred from the study that compared to other materials, viz., steel, aluminum, etc., plywood stores a net amount of carbon than emitted during its manufacture, which is mainly attributed to wood, a biogenic material that absorbs CO₂ from the atmosphere and is the major raw material for plywood manufacturing, and hence plywood can be regarded as a green building material.

References

[1]Hemmati M, Messadi T, Gu H, et al. Comparison of embodied carbon footprint of a mass timber building structure with a steel equivalent. Buildings. 2024; 14(5): 1276. doi: 10.3390/buildings14051276

[2]Victorero F, Mendez D, Bascuñan F, et al. Review and comparison of different timber building products' embodied emissions using free databases. In: Proceedings of the 13th World Conference on Timber Engineering (WCTE 2023). 2023; 927-934. doi: 10.52202/069179-0127

[3]Ramkumar VR, Anand N, Prakash V, et al. Experimental study on the performance of fiber-reinforced laminated veneer lumber produced using Melia dubia for structural applications. Constr Build Mater. 2024; 417: 135325. doi: 10.1016/j.conbuildmat.2024.135325

[4]Milota MR, West CD, Hartley ID. Gate-to-gate life-cycle inventory of softwood lumber production. Wood Fiber Sci. 2005; 37: 47-57.

[5]Vijay Kumar P, Singh MP, Sujatha D, et al. Panel products from Melia dubia. Indian Forester. 2022; 148(12): 1259. doi: 10.36808/if/2022/v148i12/166520

[6]Singh MP, Prakash V, Uday DN, et al. Block board from Melia dubia. Int J For Wood Sci. 2020; 7(September): 96-100.

[7]Prakash V, Uday DN, Sujatha D, et al. Suitability of Melia dubia for manufacture of flush door. Int J Sci Res. 2021; 10(10): 644-648. doi: 10.21275/SR211005154104

[8]Prakash V, Uday DN, Sujatha D, et al. Laminated veneer lumber (LVL) from fast growing plantation timber species Melia dubia. Int J Sci Res. 2019; 8(4): 1721-1723.

[9]Setunge S, Wong KK, Jollands M. Economic and environmental benefits of using hardwood sawmill waste as a raw material for particleboard production. Water Air Soil Pollut Focus. 2009; 9(5-6): 485-494. doi:10.1007/s11267-009-9224-z

[10]Jusoh S, Nordin K, Jamaludin MA. Gate-to-gate life cycle analysis of particleboard production in Malaysia. In: Proceedings of the 2013 IEEE Symposium on Humanities, Science and Engineering Research (SHUSER); 2013. pp. 481-486.

[11]Upadhayay VK, Mohanty BN. Trends and perspectives of Indian wood-based panels. Asian J Curr Eng Maths. 2016; (April): 35-40. doi: 10.15520/ajcem.2016.vol5.iss2.51

[12]Chauhan RS, Jadeja DB, Thakur NS, et al. Selection of candidate plus trees (CPTs) of Malabar neem (Melia dubia Cav.) for enhancement of farm productivity in South Gujarat. Int J Curr Microbiol Appl Sci. 2018; 7(5): 3582-3592. doi:10.20546/ijcmas.2018.705.414

[13]Parthiban KT, Dey S, Krishnakumar N, et al. Wood and plywood quality characterization of new and alternate species amenable for composite wood production. Wood Fiber Sci. 2019; 51(4): 424-431. doi: 10.22382/wfs-2019-040

[14]Dhiman RC, Gandhi JN. Comparative performance of Poplar, Melia, and Eucalyptus-based agroforestry systems. Indian J Agrofor. 2017; 19(2): 1-7.

[15]Jia L, Chu J, Ma L, et al. Life cycle assessment of plywood manufacturing process in China. Int J Environ Res Public Health. 2019; 16(11): 2037. doi: 10.3390/ijerph16112037

[16]Sugahara E, Casagrande B, Arroyo F, et al. Comparative Study of Plywood Boards Produced with Castor Oil-Based Polyurethane and Phenol-Formaldehyde Using Pinus taeda L. Veneers Treated with Chromated Copper Arsenate. Forests. 2022; 13(7): 1144. doi: 10.3390/f13071144

[17]Ferreira BS, et al. Physical and mechanical properties of plywood produced with thermally treated Pinus taeda veneers. Forests. 2022; 13(9): 1398. doi: 10.3390/f13091398

[18]Kouchaki-Penchah H, Sharifi M, Mousazadeh H, et al. Life cycle assessment of particleboard manufacturing: A case study. ResearchGate. 2015; 1-9.

[19]Wilson JB, Sakimoto ET. Gate-to-gate life-cycle inventory of softwood plywood production. Wood Fiber Sci. 2005; 37(Apa): 58-73.

[20]Puettmann ME, Wilson JB. Life-cycle analysis of wood products: Cradle-to-gate LCI of residential wood building materials. Wood Fiber Sci. 2005; 37(2001): 18-29.

[21]Wilson JB. Resins: A life-cycle inventory of manufacturing resins used in the wood composites industry. CORRIM: Phase II Final Report. 2009.

[22]Wilson JB. Life-cycle inventory of particleboard in terms of resources, emissions, energy, and carbon. Wood Fiber Sci. 2010; 42(Suppl 1): 90-106.

[23]Straka TJ, Layton PA. Natural resources management: Life cycle assessment and forest certification and sustainability issues. Sustainability. 2010; 2(2): 604-623. doi: 10.3390/su2020604

[24]Wilson JB, Dancer ER. Gate-to-gate life-cycle inventory of laminated veneer lumber production. Wood Fiber Sci. 2005; 37(Corrim Special Issue): 114-127.

[25]Wilson JB. Life-cycle inventory of medium density fiberboard in terms of resources, emissions, energy, and carbon. Wood Fiber Sci. 2010; 42(Suppl 1): 107-124.