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Nilsson, Kajsa
Publications (3 of 3) Show all publications
Lintzén, N., Danvind, J., Melin Söderström, E., Nilsson, K. & Skoglund, P. (2019). Laboratory Investigation of Different Insulating Materials Used for Snow Storage. Journal of cold regions engineering, 33(4), Article ID 04019012.
Open this publication in new window or tab >>Laboratory Investigation of Different Insulating Materials Used for Snow Storage
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2019 (English)In: Journal of cold regions engineering, ISSN 0887-381X, E-ISSN 1943-5495, Vol. 33, no 4, article id 04019012Article in journal (Refereed) Published
Abstract [en]

Storage of snow has become of increasing interest for the winter business industry. Covering a pile of snow with an insulating material protects the snow from heat transfer from the surroundings and reduces the melting. Storing snow enables ski resorts to set an opening date, and it can also be used to secure winter sports events that are dependent on snow. Cover materials that are commonly used as insulation are wood-based materials, such as sawdust, and textile materials and sheets. How efficiently a cover material functions as thermal insulation depends on the material characteristics and thickness of the insulating layer. In this study, results from a laboratory experiment are presented, which aimed at comparing different commonly used cover materials, as well as some other materials that have not previously been used as thermal insulation on snow. Different layer thicknesses were also investigated. The results show that the insulating capacity of sawdust is reduced with time. Despite degrading insulating properties with time, sawdust is still considered one of the best materials to use as insulation on snow, and it is also more efficient than the textile materials investigated in this study. Doubling the textile layers or adding a three-dimensional (3D) spacer textile, which implies adding a layer of air between the textile and the snow, reduces the snow melting. Water absorption, water transport, and evaporation of water affect the melting. In this work, evaporative cooling did not prove to reduce melting; therefore, it was not evident whether a textile material should be permeable. An interesting material used in the study was Quartzene, which absorbed all the melt water and protected the snow most efficiently of the materials tested. 

Keywords
Insulating materials, Melt rate, Snow, Snow storage, Thermal insulation
Identifiers
urn:nbn:se:miun:diva-37132 (URN)10.1061/(ASCE)CR.1943-5495.0000194 (DOI)2-s2.0-85071284996 (Scopus ID)
Available from: 2019-09-06 Created: 2019-09-06 Last updated: 2019-09-06Bibliographically approved
Koptioug, A., Bäckström, M., Ainegren, M. & Nilsson, K. (2018). Studying Moisture Transport Trough "Active" Fabrics Using Humidity-Temperature Sensor Nodes. In: Dr Hugo Espinosa, David R. Rowlands, Jonathan Shepherd, Professor David Thiel (Ed.), Proceedings, Volume 2, ISEA 2018: . Paper presented at 12th Conference on the Engineering of Sport, Brisbane, Australia, 26-28 March 2018 (pp. 230). , 2, Article ID 6.
Open this publication in new window or tab >>Studying Moisture Transport Trough "Active" Fabrics Using Humidity-Temperature Sensor Nodes
2018 (English)In: Proceedings, Volume 2, ISEA 2018: / [ed] Dr Hugo Espinosa, David R. Rowlands, Jonathan Shepherd, Professor David Thiel, 2018, Vol. 2, p. 230-, article id 6Conference paper, Published paper (Refereed)
Abstract [en]

Active fabrics providing better comfort of the garments and footwear rapidly become an essential part of our life. However, only limited information about the performance of such fabrics is commonly available for the garment and footwear designers, and tests are often done only with the final products. Thus development of the objective testing methods for the fabric assemblies containing microporous membranes and garments using them is one of the important topics. Garment tests in the climate chamber when exercising in windy and rainy conditions with a set of temperature and humidity sensors placed over the body allow comparing manufactured garments for thermal and humidity comfort. To allow for better material testing a new laboratory setup was developed for studying the dynamics of the humidity transport through different fabrics at realistic conditions in extension of the existing ISO test procedure. Present paper discusses the experimental procedures and first results acquired with new setup.

Keywords
active fabrics, garments comfort, microporous membranes, humidity transport, experimental setup
National Category
Textile, Rubber and Polymeric Materials
Identifiers
urn:nbn:se:miun:diva-32499 (URN)10.3390/proceedings2060230 (DOI)
Conference
12th Conference on the Engineering of Sport, Brisbane, Australia, 26-28 March 2018
Projects
STII
Funder
VINNOVA
Available from: 2017-12-19 Created: 2017-12-19 Last updated: 2018-04-25Bibliographically approved
Svedlund, J., Nilsson, K. & Longueville, A. (2016). Sustainability in a Regional and Global Sports/Outdoor Industry. In: VEC - Valuing and Evaluating Creativity for Sustainable Regional Development: . Paper presented at Valuing and Evaluating Creativity for Sustainable Regional Development, September 11-14, 2016, Östersund.
Open this publication in new window or tab >>Sustainability in a Regional and Global Sports/Outdoor Industry
2016 (English)In: VEC - Valuing and Evaluating Creativity for Sustainable Regional Development, 2016Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

Regional identity through a business eye 

In the Jämtland Härjedalen region, outdoor sports activities and the many companies that provide high-end equipment for outdoor life are an integral part of the regional identity, culture and business life. While rooted locally, the outdoor and sports business is tightly linked to complex supply chains branching out to the textile and chemical industry. This often includes suppliers and customers in other parts of the world, providing a broad range of sustainability challenges. 

A new and creative approach 

The project ‘Sustainability in Sports/Outdoor’ was initiated by Peak Innovation, supported by Mid Sweden University and run in cooperation with Elevenate, Hilleberg, Icebug, Lundhags and Skhoop; five small and medium sized (SME) companies from the sport/outdoor industry in the region. This project has taken a new and creative approach to sustainability challenges by developing and introducing a method for SME’s to embed the sustainability concept into their core business, rather than focusing on single issues of mitigation and risk management. 

The main project goal was to establish and test a method for value-driven sustainable development. The method is targeted at the challenges of smaller organisations handling complex value chains. Another emphasis has been on making the company strategies and efforts towards sustainability resilient, forward-thinking and measurable. 

Preliminary Results 

Results include increased awareness and engagement both within the companies and in their value chains, as well as direct inputs to product and process development. The companies have in collaboration created knowledge, engagement, and concrete actions, such as clearly communicating new sustainability ambitions to their suppliers, distributors and customers. Thus accelerating change towards more sustainable business operations.

The broader perspective 

This paper is part of a research where the overarching question is how to link creativity and innovation tighter to sustainable development. Creators of new solutions, relations and experiences are well suited to drive sustainable development, but need supportive conditions to succeed. By exploring the connections between creativity, sustainability and organisational management we aim to find a set of conditions that strengthen the work within sustainable innovation, in both business and society.

National Category
Environmental Sciences
Identifiers
urn:nbn:se:miun:diva-30356 (URN)
Conference
Valuing and Evaluating Creativity for Sustainable Regional Development, September 11-14, 2016, Östersund
Available from: 2017-02-27 Created: 2017-02-27 Last updated: 2017-02-28Bibliographically approved
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