| 31. |
- Fröling, Morgan, 1966-, et al.
(författare)
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Bio-CCS - a model based case study from the mid Sweden region
- 2015
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Ingår i: Proceedings of Global Cleaner Production and Sustainable Consumption, Sitges Barcelona, November 1-4, 2015.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- In its 2014 report, IPCC recommend Carbon Capture and Storage not only for fossil power plants but also for bioenergy to beable to meet the 2 degree target. In a case study, models for CCS applied to a combined heat and power (CHP) plant inÖstersund, Sweden, using wood chips as main fuel was assessed. The goal was to gain knowledge to be prepared to takemore rapid action if policy instruments are implemented in future. More "traditional" technology with absorption inmonoethanolamine (MEA) and subsequent underground storage uses a significant part of produced electricity, and in anenergy system perspective it is not necessarily the most efficient use of a limited wood resource. For processes withcomparatively low net climate impact, like bio-CHP, alternatives significantly more energy efficient per unit of capturedcarbon dioxide but only able to capture part of the total emitted carbon can be considered. One such alternative is to capturecarbon dioxide using microalgae. Key issues for assessment of processes in this case are how to store the carbon captured inthe algae biomass (e.g. in products) and for how long the carbon will be withdrawn from atmosphere with such storage.
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| 32. |
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| 33. |
- Fröling, Morgan, 1966-, et al.
(författare)
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Design Processes Releasing Creativity for Sustainability
- 2016
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Ingår i: Valuing and Evaluating Creativity for Sustainable Regional Development. - Östersund. ; , s. 223-225
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- To move toward sustainable societies and achieve the United Nations Global Goals changes are necessary at many levels and in many dimensions of human society. New creative methods in the design approach are necessary. The magnitude of change that is needed can be imagined by the fact that the world is so impacted by human activities that some discuss our present era on earth as the “Anthropocene”. To keep up and expand human wellbeing all over the world, it will be necessary to design new products and processes that are better adapted to fit within the planetary boundaries of the Earth. The ‘squary shape’ of most city components are badly adopted both to human body and our cognitive for stimulation. At the same time, social sustainability requires the development of these new products and processes in ways that are inclusive. In other words, our solutions toned to be available for use by as many individuals as possible worldwide.The design stage is when there are many degrees of freedom compared to later production and use phases of products or services. Unsustainable properties included at this stage are often hard or expensive (or both) to correct later on when infrastructure for production has been created.. Thus the design stage is one important area that can help create movement towards more sustainable societies.There are several development processes available to create more environmentally friendly products. These processes can be good in some cases but often are the requirement settled before designer are involved. Therefore they are not inspiring designers, and release of the expertise of designers can not be used in a significant way [1,2]. For example, in the corporate sector there is often a lack of clear vision and goals during specific design tasks, which can hamper leapfrog development.To develop products and solutions that are inclusive to large parts of the population is a challenge for sustained and increased human wellbeing, especially with an expected aging population. To meet such challenges design methods and approaches has been developed under the concept Design for All [3]. The Design for All approach is often thought of as handling human ergonomic challenges, but if used correctly this approach can also be helpful for inclusion of individuals facing a wide range of physical or cognitive challenges.Since more environmentally adapted design and more inclusive design are two parallel developments that is needed for the future, it is of interest to merge the thinking of such approaches. A widening of thinking regarding Design for All to take into account not only the ‘weakest humans’ but also the ‘weakest links in ecosystems’ could be such a road forward to design that fits in a future sustainable society. It has the possibility to be set up in a way to release and utilize the expertise of designers and thus opens for truly creative solutions for the problems of today and tomorrow.A new creative way to solve city, and other design issues by starting from the most demanding peoples and nature species needs instead of re-designing artefacts originated from industrial production indicates hope for sustainable solutions in the future. This is a possible starting point for a new era of creative cites.ReferencesGunilla Clancy; Morgan Fröling; Gregory Peters (2015): Ecolabels as drivers of clothing design. Journal of Cleaner Production, ISSN 0959-6526, Vol. 99, p.345-353.Gunilla Clancy; Morgan Fröling; Magdalena Svanström (2013): Insights from guiding material development towards more sustainable products. International Journal of Sustainable Design, ISSN 1743-8284, Vol. 2, no 2, p. 149-166.Lena Lorentzen; Johan Eklund (2011): Design for All (Published in Swedish: Design för alla: En ny metod för att bedöma produkters, tjänsters och miljöers användbarhet). Design Research Journal, ISSN 2000-3080, Vol. 1, no 1, 46-53 p.
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| 34. |
- Fröling, Morgan, 1966-, et al.
(författare)
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DISTRICT HEATING AS PART OF THE ENERGY SYSTEM : AN ENVIRONMENTAL PERSPECTIVE ON ‘PASSIVE HOUSES’ AND HEAT REPLACING ELECTRICITY USE
- 2010
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Ingår i: Proceedings of 12th International Symposium onDistrict Heating and Cooling, September 5th –September 7th, 2010, Tallin University of Technology, Tallinn, ESTONIA. - 9789949230150 ; , s. 202-205
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Energy use for space heating, hot tap water and otherheat use at comparatively low temperature levelsrepresent a substantial part of the total energy use inSweden and countries with similar climate. It is thus ofimportance to meet this demand in a way generating assmall environmental impact as possible. However, it ispossible to create a system with higher environmentalimpacts with energy efficient buildings compared toless energy efficient buildings through choice of lessgood energy carriers. It is not enough that theindividual parts of a system are good and efficient togive a low environmental impact; the parts must beconnected into the system in a good way.From environmental perspective energy efficientbuildings and district heating don‘t oppose each other– good parts connected in a good system will give anoptimal. The results from the study of the three items ofhousehold equipment show possibilities for districtheating to be an alternative with good environmentalperformance, but not under all heat generationregimes.
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| 35. |
- Fröling, Morgan, 1966-, et al.
(författare)
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Ecosystem services tradeoffs when striving twoards a biobased future [Eco-Tech'12]
- 2012
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Ingår i: Proceedings of ECO-TECH 2012, 26-28 November, Kalmar, Sweden.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- With increasing demand for bio-based materials and forest biofuels the pressures on ecosystem services from forestry practices will increase. This calls for identification and assessment of tradeoffs between different uses of provisioning and other ecosystem services and establish management practices considering such tradeoffs. Traditional optimization parameters like carbon footprint or life cycle energy use will not be enough; impacts on ecosystem services must also be assessed.The UN Millennium Ecosystem Assessment concludes that ecosystems and their ability to provide humanity with ecosystem services are under severe stress. Increased use of bio-based materials and biofuels must be furnished in ways not unnecessary worsening the situation, or locally destroy the provisioning of essential ecosystem services.The Swedish county of Jämtland is used as an example, with 3.4 million ha of forest area and forestry as an important industry. At the same time the county has a large tourism industry - for skiing but also for experiences of undisturbed nature, hiking, hunting, fishing et c. The county is also marketing itself as a “Quality Food Area” having a focus on local food production and food experiences, with the clean and uncontaminated environment for agriculture, game and fish as a cornerstone. More intensive forestry may create conflicts between enterprises related to cultural ecosystem services and those provisioning services pushed for biofuel production.We need to make possible the inclusion of tradeoffs between different types of e.g. cultural ecosystem services in sustainability assessments of increased forest biomaterial harvesting and production in Jämtland.
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| 36. |
- Fröling, Morgan, 1966
(författare)
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Environmental and Thermal Performance of District Heating Pipes
- 2002
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- In order to move towards a sustainable society we need to increase the efficiency of our use of available resources, not only in economic terms but also in ecological terms. District heating, the utilisation of centrally produced heat for space heating and domestic hot water generation, has the potential to contribute to the eco-efficient use of energy resources in the parts of the world where space heating is needed. The introduction of district heating has reduced the environmental impact from local heat production in urban areas. However, in order to fit into a sustainable society, district heating must be continuously developed according to the increasing demands on activities in a society moving towards sustainability. Our technical improvements must result in environmental improvements. This thesis focuses on the environmental performance of the distribution system - the district heating pipes. The purpose of this research is to understand how the distribution system can be improved. The information presented in this thesis can be used to identify possibilities for improving the environmental performance of different life cycle phases of the distribution system as well as a baseline when evaluating new technical developments. The heat losses during use of the pipes are of large importance for the environmental impact of district heating pipes. Such heat losses can be modelled if the mass transfer parameters for gases in the polyurethane insulation and the polyethylene casing are known. The diffusion coefficients, the permeability coefficients and the solubility coefficients and their temperature dependence have been determined for cyclopentane, carbon dioxide, nitrogen, and oxygen. The same parameters have been studied for the blowing agent alternative HFC-365mfc at room temperature. The long-term thermal performance of district heating pipes has been modelled using effective permeabilities for the pipe construction. Environmental consequences of heat losses during the use phase of district heating pipes have been compared with the impacts from production of the pipes and from construction of the district heating network. The use of the district heating pipes is the most important of the studied life cycle phases. Thus, it is very important to minimise heat losses from the pipes. The heat losses will for some district heating pipes increase notably during use due to foam ageing. Regarding the production of the pipes, the environmental performance can be improved mainly by using more material efficient pipe constructions, and for the construction of the piping network mainly by decreasing the excavation work. However, such improvements must be done in a way not jeopardising the insulating capacity. Twin-pipes, using two media pipes in the same casing pipe, will for smaller dimensions give better material efficiency and less need for excavation compared to the use of two single pipes.
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