Footwear for cold environments. Thermal properties, performance and testing

نویسندگان

  • Kalev Kuklane
  • Staffan Marklund
  • Mikael Bergenheim
  • Anders Kjellberg
  • Birgitta Meding
  • Gunnar Rosén
  • Ewa Wigaeus Hjelm
چکیده

The National Institute for Working Life is Sweden's national centre for work life research, development and training. The labour market, occupational safety and health, and work organisation are our main fields of activity. The creation and use of knowledge through learning, information and documentation are important to the Institute, as is international cooperation. The Institute is collaborating with interested parties in various development projects. The areas in which the Institute is active include: • labour market and labour law, • work organisation, • musculoskeletal disorders, • chemical substances and allergens, noise and electromagnetic fields, • the psychosocial problems and strain-related disorders in modern working life. For my family: the ones who were, the ones who are, the ones to come. The thesis is based on following papers and some unpublished data. Papers are presented under Appendices: One week sweating simulation test with a thermal foot model. Determination of heat loss from the feet and insulation of the footwear.

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منابع مشابه

Protection of feet in cold exposure.

The paper summarizes the research on cold protection of feet. There exist several conflicting requirements for the choice of the best suited footwear for cold exposure. These conflicts are related to various environmental factors, protection needs and user comfort issues. In order to reduce such conflicts and simplify the choice of proper footwear the paper suggests dividing the cold into speci...

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The use of footwear insulation values measured on a thermal foot model.

The use of physiological data from human tests in modelling should consider background data, such as activity, environmental factors and clothing insulation on the whole body. The present paper focuses on local thermal comfort of feet with special attention on the effects of physical changes of footwear thermal properties. An alternative test method is available for footwear thermal testing bes...

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Testing cold protection according to EN ISO 20344: is there any professional footwear that does not pass?

The present Comité Européen de Normalisation (CEN) and International Organization for Standardization (ISO) standards for safety, protective and occupational footwear EN ISO 20344-20347 classify footwear as cold protective by a pass/fail test where the limits are set for an allowed 10 degrees C temperature drop inside the footwear during 30 min at a temperature gradient of approximately 40 degr...

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A comparison of two methods of determining thermal properties of footwear.

The present European Standard for footwear testing (Standard No. EN 344:1992; European Committee for Standardization [CEN], 1992) classifies footwear thermally by a temperature drop inside the footwear during 30 min at defined conditions. Today, other methods for footwear thermal testing are also available. The aim of this study was to compare EN 344:1992 with a thermal foot method. Six boots w...

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THERMAL PERFORMANCE SIMULATION OF HYDROPONIC GREEN WALL IN A COLD CLIMATE

The green hydroponics walls are among new kinds of building facades, which receive more attention from architects lately. In addition to the positive effect these walls have in maintaining humidity in arid regions, they also have positive thermal performance in both cold and hot weather conditions. Therefore, they are in the center of designers’ focus for public spaces such as schools. In terms...

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تاریخ انتشار 1999