Conventional forklifts face serious issues, with internal combustion engine models causing indoor pollution, and lead-acid battery variants having slow charging and reduced power output as the charge diminishes. To address these drawbacks, this paper introduces a 2.5-tonne fuel cell forklift designed for Hong Kong's bustling logistics, warehousing, and transportation needs. It presents the development of dynamic simulation and cycle condition models, incorporating life cycle cost and average efficiency functions. Simulations reveal that selecting a 50-cell stack (rated at 11.8 kW) is the most cost-effective option, reducing hydrogen consumption by 2.3% using Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) optimisation. Cycle conditions do not alter the stack's optimal working voltage. However, the stack's voltage is influenced by stack and hydrogen prices, requiring an optimal design based on Hong Kong's actual costs. This study provides a theoretical foundation for future fuel cell forklift design through techno-economic analysis.
Keywords:
Fuel cell forklift; hybrid system; life cycle cost; working voltage; Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS); sensitivity analysis
Reference List:
Chakraborty S, Dash SK, Elavarasan RM, Kaur A, Elangovan D, Meraj ST, Kasinathan P and Said Z (2022). Hydrogen Energy as Future of Sustainable Mobility. Frontiers in Energy Research, 10.
Chan E, Dawson F, Bekker H and Livshits E (2007). A Software Simulation Program for a Hybrid Fuel Cell –Battery Power Supply for an Electric Fork Lift. In: European Conference on Power Electronics and Applications. Aalborg: IEEE, pp. 1-10.
Cheddie DF and Murray R (2010). Thermo-economic modeling of a solid oxide fuel cell/gas turbine power plant with semi-direct coupling and anode recycling. International Journal of Hydrogen Energy, 35(20), pp. 11208-11215.
Chen H, Pei P and Song M (2015). Lifetime prediction and the economic lifetime of Proton Exchange Membrane fuel cells. Applied Energy, 142, pp. 154-163.
Das HS, Tan CW and Yatim AHM (2017). Fuel cell hybrid electric vehicles: A review on power conditioning units and topologies. Renewable and Sustainable Energy Reviews, 76, pp. 268-291.
Falcone PM, Hiete M and Sapio A (2021). Hydrogen economy and sustainable development goals: Review and policy insights. Current Opinion in Green and Sustainable Chemistry, 31, pp. 100506.
Genta G (1997). Motor vehicle dynamics: modeling and simulation. World scientific.
Hosseinzadeh E, Rokni M, Advani SG and Prasad AK (2013). Performance simulation and analysis of a fuel cell/battery hybrid forklift truck. International Journal of Hydrogen Energy, 38(11), pp. 4241-4249.
Kumaraswamy KV and Quaicoe JE (2017). Standalone fuel cell generation system with different tracking techniques: economic analysis. IET Renewable Power Generation, 11(9), pp. 1186-1193.
Leaver J and Gillingham K (2010). Economic impact of the integration of alternative vehicle technologies into the New Zealand vehicle fleet. Journal of Cleaner Production, 18(9), pp. 908-916.
Metzger N and Li X (2022). Technical and Economic Analysis of Fuel Cells for Forklift Applications. ACS Omega, 7(22), pp. 18267-18275.
Miller EL, Thompson ST, Randolph K, Hulvey Z, Rustagi N and Satyapal S (2020). US Department of Energy hydrogen and fuel cell technologies perspectives. MRS Bulletin, 45(1), pp. 57-64.
O'hayre R, Cha SW, Colella W and Prinz FB (2016). Fuel cell fundamentals. John Wiley & Sons.
Radica G, Tolj I, Markota D, Lototskyy MV, Pasupathi S and Yartys V (2021). Control strategy of a fuel-cell power module for electric forklift. International Journal of Hydrogen Energy, 46(72), pp. 35938-35948.
Renquist JV, Dickman B and Bradley TH (2012). Economic comparison of fuel cell powered forklifts to battery powered forklifts. International Journal of Hydrogen Energy, 37(17), pp. 12054-12059.
Ren X, Dong L, Xu D and Hu B (2020). Challenges towards hydrogen economy in China'. International Journal of Hydrogen Energy, 45(59), pp. 34326- 34345.
Tingyan W, Qingdan H, Chongzhi Z, Huihong H and Haoyong S (2022). Economic Operation Strategy of Multitype Emergency Power Supply Taking into Account Carbon Cost. International Energy Journal, 22(4).
Urban Europe (2019). Strategic research and innovation agenda 2.0. JPI Urban Europe, Vienna.
Yoon KP and Kim WK (2017). The behavioral TOPSIS. Expert Systems with Applications, 89, pp. 266-272.
Zhang E, Zhuo J, Hou L, Fu C and Guo T (2021). Comprehensive annoyance modeling of forklift sound quality based on rank score comparison and multifuzzy analytic hierarchy process. Applied Acoustics, 173, pp. 107705.
Zhang X (2021). The Development Trend of and Suggestions for China’s Hydrogen Energy Industry. Engineering, 7(6), pp. 719-721.
Zheng CH, Xu GQ, Park YI, Lim WS and Cha SW (2014). Prolonging fuel cell stack lifetime based on Pontryagin's Minimum Principle in fuel cell hybrid vehicles and its economic influence evaluation. Journal of Power Sources, 248, pp. 533-544.