scholarly journals A multi-optimization model for the design of hydrogen supply chains

2020 ◽  
Vol 194 ◽  
pp. 02028
Author(s):  
Miao Li ◽  
, Baolian Yi ◽  
Pingwen Ming ◽  
Danmin Xing ◽  
Changfu Liu
Keyword(s):  
Hydrogen Production ◽  
Development Planning ◽  
Emissions Reduction ◽  
Multi Objective Optimization ◽  
Policy Makers ◽  
Design Models ◽  
Hydrogen Supply ◽  
Hydrogen Supply Chain ◽  
Selection Of

This paper presents a multi-objective optimization models which operating as time processes (2025-2035) for the design of hydrogen supply chain. The feasibility of the models are illustrated through a detail case study of Dalian, China. Furthermore, the case is evaluated with the total daily costs and CO2 emissions reduction constraints. The results show that with the increase of hydrogen demand, considering the environmental factors, SMR are mostly applied in hydrogen production link. Shahekou and Pulandian grids are suitable for the constructions of hydrogen production units. Tank trucks are the main modes of hydrogen transportation. The proposed design models can provide policy-makers with the selection of infrastructures pathways for strategic dynamic hydrogen development planning.

scholarly journals LCA Guidelines for Assessing Effect of Greenhouse Gas Emissions Reduction in Hydrogen Supply Chain

2017 ◽  
Vol 13 (4) ◽  
pp. 325-331
Author(s):  
Tatsuya WADAGUCHI ◽  
Takamichi OCHI ◽  
Sayaka OGA ◽  
Issui IHARA ◽  
Shoichiro TSURUTA ◽  
...  
Keyword(s):  
Supply Chain ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Emissions Reduction ◽  
Gas Emissions ◽  
Hydrogen Supply ◽  
Hydrogen Supply Chain

Hydrogen innovation: discover development hotspots with patent landscaping

2020 ◽  
Vol 60 (2) ◽  
pp. 389
Author(s):  
Richard H. Baddeley
Keyword(s):  
Supply Chain ◽  
Hydrogen Production ◽  
Steam Reforming ◽  
Global Economy ◽  
Commercial Activity ◽  
Export Markets ◽  
Technical Risk ◽  
Hydrogen Supply ◽  
Hydrogen Supply Chain ◽  
Energy Companies

Hydrogen will play a major role in the decarbonisation of the global economy. Energy companies are likely to extend interests in hydrogen exports and will need a credible hydrogen supply chain. Patent intensity, coupled with recent hydrogen production technology reviews and commercial activity by companies such as Kawasaki, provides support for forecasting a hydrogen supply chain that will include the following steps: Steam reforming of methane or coal, preferably methane, to produce hydrogen; hydrogen liquefaction (LH2) in preference to ammonia or liquid organic hydrogen carriers (LOHC) such as toluene (though this methodology has been trialled for Brunei produced hydrogen); shipping of LH2 to export markets; hydrogen gasification by end users. Given the 20 year lifecycle of patents, this forecast is anticipated to hold until 2030–40. The forecast does not exclude other technical options for hydrogen production and shipping but cost and technical risk will need to be minimised below the mature technologies of steam reforming and hydrogen liquefaction.

scholarly journals Attitude towards and Perception of Literature in EFL Setting: A Case Study on QU Male Undergraduate Students

2016 ◽  
Vol 10 (1) ◽  
pp. 1 ◽  
Author(s):  
Abdullah H. Alfauzan ◽  
Abduljabbar G. Hussain
Keyword(s):  
Undergraduate Students ◽  
English Literature ◽  
Public University ◽  
Mixed Method Research ◽  
Policy Makers ◽  
Positive Attitudes ◽  
Male Undergraduate ◽  
English Program ◽  
Selection Of

The study attempts to investigate the attitude and perception of Saudi undergraduate students towards English literature courses as a part of their BA English Program at a large public university in KSA. A total of 59 students (25 studying a literature course, 25 linguistics course and nine had already passed at least one literature course) participated in the study. Applying mixed method research design, questionnaires were used to collect quantitative data and retrospective essays were used for qualitative data. A modified version of AMTB developed by Gardner and associates was used to measure students' attitude towards literature courses. The results of study show that the participants have positive attitude towards literature courses. The findings also suggest that learners’ social environment (family, friends, classmates, teachers…etc.) significantly contribute in constructing positive attitudes and enhancing their perception towards literature as medium of learning L2. The study has pedagogical implication too. Policy makers (administrator, curriculum developers, and teachers) need to accommodate learners’ voices in the selection of teaching material.

scholarly journals Benefits of the multi-modality formulation in hydrogen supply chain modelling

2022 ◽  
Vol 334 ◽  
pp. 02003
Author(s):  
Federico Parolin ◽  
Paolo Colbertaldo ◽  
Stefano Campanari
Keyword(s):  
Supply Chain ◽  
Carbon Capture ◽  
Low Carbon ◽  
Gas Network ◽  
Hydrogen Supply ◽  
Production Technologies ◽  
Hydrogen Supply Chain ◽  
Low Carbon Energy

Hydrogen is recognized as a key element of future low-carbon energy systems. For proper integration, an adequate delivery infrastructure will be required, to be deployed in parallel to the electric grid and the gas network. This work adopts an optimization model to support the design of a future hydrogen delivery infrastructure, considering production, storage, and transport up to demand points. The model includes two production technologies, i.e., steam reforming with carbon capture and PV-fed electrolysis systems, and three transport modalities, i.e., pipelines, compressed hydrogen trucks, and liquid hydrogen trucks. This study compares a multi-modality formulation, in which the different transport technologies are simultaneously employed and their selection is optimized, with a mono-modality formulation, in which a single transport technology is considered. The assessment looks at the regional case study of Lombardy in Italy, considering a long-term scenario in which an extensive hydrogen supply chain is developed to supply hydrogen for clean mobility. Results show that the multi-modality infrastructure provides significant cost benefits, yielding an average cost of hydrogen that is up to 11% lower than a mono-modality configuration.

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