Development of design-based additive method for defining final protection factor of and thermal comfort in workwear
| Reference number | |
| Coordinator | Taiga Aktiebolag |
| Funding from Vinnova | SEK 456 200 |
| Project duration | November 2012 - November 2013 |
| Status | Completed |
Purpose and goal
To calculate the total insulation of a clothing system from individual garments the influence of various design and wear aspects must be considered. Future needs of Taiga Clothing Tool (TCT) can be met by development. Conclusions: 1. Questionnaire on TCT showed improvement areas. 2. A subprogram was compiled and can be utilized for improvements. 3. Body shape, clothing fit and size, textile properties, number and position of layers do affect outcome. 4. Summation method feels promising. 5. Taiga clothes should be tested in patches allowing the development and validation of the method.
Results and expected effects
Questionnaire showed improvement areas of TCT. Many aspects can be addressed under reprogramming of it. Review of software pointed to the need for simplifying the user interface, and this was met by development of a new basic program. Various design aspects of the clothing that do affect the insulation can be built in as subprograms Database surveys pointed to relationships and effect expectations. None of the available databases had complete parameters, and therefore, it is important to continue with measurements. Differences in measured and calculated insulation could be over 30 %.
Approach and implementation
Prestudy consisted of: 1. A questionnaire survey on webtool; 2. Review of software and need for changes; 3. Work with available datbases. The latter had 2 parts: 1. Databases that could not be complemented but allowed to analyse the influence of some factors. 2. Complementary measurements in unavailable data areas, and for databases allowing extension. Necessities for improvements were identified and a new baseprogram for heat was developed. Database and complementary measurement analysis did identify parameters to be measured for development of designbased summation method.