Change search
Link to record
Permanent link

Direct link
BETA
Publications (5 of 5) Show all publications
van Oirschot, R., Thomas, J.-B., Gröndahl, F., Fortuin, K. P., Brandenburg, W. & Potting, J. (2017). Explorative environmental life cycle assessment for system design of seaweed cultivation and drying. Algal Research, 27, 43-54
Open this publication in new window or tab >>Explorative environmental life cycle assessment for system design of seaweed cultivation and drying
Show others...
2017 (English)In: Algal Research, ISSN 2211-9264, Vol. 27, p. 43-54Article in journal (Refereed) Published
Abstract [en]

Seaweeds are presently explored as an alternative source to meet the future protein demand from a growing world population with an increasing welfare level. Present seaweed research largely focuses on agri-technical and economic aspects. This paper explores directions for optimizing the cultivation, harvesting, transport and drying of seaweed from an environmental point of view. An environmental life cycle assessment (LCA) and detailed sensitivity analysis was made for two different system designs. One system design is featuring one layer of cultivation strips (four longlines side by side) interspaced with access corridors. The other system design is featuring a doubling of cultivation strips by dual layers in the water column. Impact profiles and sensitivity analysis showed that the most important impacts came from drying the harvested seaweed, and from the production of the chromium steel chains and polypropylene rope in the infrastructure. This indicates that caution should be used when designing cultivation systems featuring such materials and processes. Furthermore, the high-density productivity of the dual layer system decreases absolute environmental impacts and so found to be a little more environmentally friendly from a life cycle perspective.

Place, publisher, year, edition, pages
Elsevier B.V., 2017
Keywords
Algae cultivation, Environmental impacts, Life cycle assessment, Macroalgae
National Category
Other Environmental Engineering
Identifiers
urn:nbn:se:kth:diva-218642 (URN)10.1016/j.algal.2017.07.025 (DOI)000413256800005 ()2-s2.0-85027514694 (Scopus ID)
Note

QC 20171129

Available from: 2017-11-29 Created: 2017-11-29 Last updated: 2019-10-18Bibliographically approved
Bocken, N. M. P., Olivetti, E. A., Cullen, J. M., Potting, J. & Lifset, R. (2017). Taking the Circularity to the Next Level A Special Issue on the Circular Economy. Journal of Industrial Ecology, 21(3), 476-482
Open this publication in new window or tab >>Taking the Circularity to the Next Level A Special Issue on the Circular Economy
Show others...
2017 (English)In: Journal of Industrial Ecology, ISSN 1088-1980, E-ISSN 1530-9290, Vol. 21, no 3, p. 476-482Article in journal, Editorial material (Other academic) Published
Place, publisher, year, edition, pages
WILEY, 2017
National Category
Economics and Business
Identifiers
urn:nbn:se:kth:diva-211401 (URN)10.1111/jiec.12606 (DOI)000405315600001 ()2-s2.0-85018432911 (Scopus ID)
Note

QC 20170804

Available from: 2017-08-04 Created: 2017-08-04 Last updated: 2017-08-04Bibliographically approved
O'Reilly, C. J., Göransson, P., Funazaki, A., Suzuki, T., Edlund, S., Gunnarsson, C., . . . Potting, J. (2016). Life-cycle energy optimisation: A proposed methodology for integrating environmental considerations early in the vehicle engineering design process. Journal of Cleaner Production, 135, 750-759
Open this publication in new window or tab >>Life-cycle energy optimisation: A proposed methodology for integrating environmental considerations early in the vehicle engineering design process
Show others...
2016 (English)In: Journal of Cleaner Production, ISSN 0959-6526, Vol. 135, p. 750-759Article in journal (Refereed) Published
Abstract [en]

To enable the consideration of life cycle environmental impacts in the early stages of vehicle design, a methodology using the proxy of life cycle energy is proposed in this paper. The trade-offs in energy between vehicle production, operational performance and end-of-life are formulated as a mathematical problem, and simultaneously balanced with other transport-related functionalities, and may be optimised. The methodology is illustrated through an example design study, which is deliberately kept simple in order to emphasise the conceptual idea. The obtained optimisation results demonstrate that there is a unique driving-scenario-specific design solution, which meets functional requirements with a minimum life cycle energy cost. The results also suggest that a use-phase focussed design may result in a solution, which is sub-optimal from a life cycle point-of-view.

Place, publisher, year, edition, pages
Elsevier, 2016
Keywords
Life-cycle energy, vehicle design, optimization, functional conflicts
National Category
Vehicle Engineering Environmental Engineering
Identifiers
urn:nbn:se:kth:diva-175827 (URN)10.1016/j.jclepro.2016.06.163 (DOI)000382792900065 ()2-s2.0-84990218392 (Scopus ID)
Note

QC 20160623

Available from: 2015-10-22 Created: 2015-10-22 Last updated: 2019-02-08Bibliographically approved
O'Born, R., Brattebo, H., Iversen, O. M., Miliutenko, S. & Potting, J. (2016). Quantifying energy demand and greenhouse gas emissions of road infrastructure projects: An LCA case study of the Oslo fjord crossing in Norway. European Journal of Transport and Infrastructure Research, 16(3), 445-466
Open this publication in new window or tab >>Quantifying energy demand and greenhouse gas emissions of road infrastructure projects: An LCA case study of the Oslo fjord crossing in Norway
Show others...
2016 (English)In: European Journal of Transport and Infrastructure Research, ISSN 1567-7133, E-ISSN 1567-7141, Vol. 16, no 3, p. 445-466Article in journal (Refereed) Published
Abstract [en]

The road sector consumes large amounts of materials and energy and produces large quantities of greenhouse gas emissions, which can be reduced with correct information in the early planning stages of road project. An important aspect in the early planning stages is the choice between alternative road corridors that will determine the route distance and the subsequent need for different road infrastructure elements, such as bridges and tunnels. Together, these factors may heavily influence the life cycle environmental impacts of the road project. This paper presents a case study for two prospective road corridor alternatives for the Oslo fjord crossing in Norway and utilizes in a streamlined model based on life cycle assessment principles to quantify cumulative energy demand and greenhouse gas emissions for each route. This technique can be used to determine potential environmental impacts of road projects by overcoming several challenges in the early planning stages, such as the limited availability of detailed life cycle inventory data on the consumption of material and energy inputs, large uncertainty in the design and demand for road infrastructure elements, as well as in future traffic and future vehicle technologies. The results show the importance of assessing different life cycle activities, input materials, fuels and the critical components of such a system. For the Oslo fjord case, traffic during operation contributes about 94 % and 89 % of the annual CED and about 98 % and 92 % of the annual GHG emissions, for a tunnel and a bridge fjord crossing alternative respectively.

Place, publisher, year, edition, pages
EDITORIAL BOARD EJTIR, 2016
Keywords
cumulative energy demand, greenhouse gas emissions, life cycle assessment (LCA), road infrastructure, road planning
National Category
Civil Engineering
Identifiers
urn:nbn:se:kth:diva-242648 (URN)000384746600002 ()2-s2.0-84970028602 (Scopus ID)
Note

QC 20190225

Available from: 2019-02-25 Created: 2019-02-25 Last updated: 2019-02-25Bibliographically approved
Liljenström, C., Miliutenko, S., O'Born, R., Brattebo, H., Birgisdottir, H., Toller, S., . . . Potting, J.Life cycle assessment as decision-support in choice of road corridor: case study and stakeholder perspectives.
Open this publication in new window or tab >>Life cycle assessment as decision-support in choice of road corridor: case study and stakeholder perspectives
Show others...
(English)Manuscript (preprint) (Other academic)
Abstract [en]

The possibilities to influence environmental impacts during the road life cycle are greatest in early planning; however, the lack of project specific data makes it difficult to use life cycle assessment as decision-support. This paper examines how life cycle assessment can be used to support the choice of road corridor, considering the practical prerequisit of simplicity and usefulness of results for decision-making. The model LICCER was used to quantify life cycle impacts of road corridors in a construction project in Sweden. Availability of input data and usefulness of results was discussed with road authorities in Sweden, Norway, and Denmark. Traffic operation contributed most to life cycle impacts in all road corridors, thus the shortest construction alternative had the lowest life cycle impacts. However, the shortest alternative had the highest infrastructure related impacts due to large quantities of earthworks. Parameters that had the highest influence on results were those that affected the impacts of traffic, earthworks, and pavement. While workshop participants agreed that project specific data are scarce and uncertain in early planning, they also believed that planners can make satisfactory estimations and that the model output is useful to support the choice of road corridor. To balance simplicity and usefulness of results, data collection should focus on parameters that have high contribution to environmental impacts, that differentiate the road corridors, and are not proportional to the road length. To implement life cycle assessment in practice, models should preferably include nation specific data approved by the national road authority.

National Category
Other Natural Sciences
Identifiers
urn:nbn:se:kth:diva-239599 (URN)
Note

QC 20181213

Available from: 2018-11-27 Created: 2018-11-27 Last updated: 2018-12-13Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0003-4040-7262

Search in DiVA

Show all publications