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Final report of Working Group 4: Ergonomics of thermal effects. A COST Action TU1101 / HOPE collaboration

Annaheim, Simon; Aerts, Jean-Marie; Bröde, Peter; De Bruyne, Guido; Flouris, Andreas D.; Hursa Sajatovic, Anica; Kuklane, Kalev LU ; Martinez, Natividad; Sotto Mayor, Tiago and Bogerd, Cornelis P. (2015)
Abstract
The thermal effects related to wearing a bicycle helmet are complex and different studies have investigated single parts of this topic. A literature review was produced and published (Bogerd et al., 2015) summarizing the different findings to give a complete overview on this topic as well as to suggest new perspectives. Headgear increases head insulation and therefore is mainly problematic under warm conditions, which is the focus of that review. Helmets do not affect physiological parameters other than the local skin temperature and sweat rate. However, the head is among the most sensitive body parts related to thermal comfort, thereby directly affecting the willingness to wear headgear. Several methods have been used to study thermal... (More)
The thermal effects related to wearing a bicycle helmet are complex and different studies have investigated single parts of this topic. A literature review was produced and published (Bogerd et al., 2015) summarizing the different findings to give a complete overview on this topic as well as to suggest new perspectives. Headgear increases head insulation and therefore is mainly problematic under warm conditions, which is the focus of that review. Helmets do not affect physiological parameters other than the local skin temperature and sweat rate. However, the head is among the most sensitive body parts related to thermal comfort, thereby directly affecting the willingness to wear headgear. Several methods have been used to study thermal aspects of headgear, which could be categorized as (i) numerical, (ii) biophysical, (iii) combined numerical and biophysical, and (iv) user trials. The application of these methods established that heat transfer mainly takes place through radiation and convection. Headgear parameters relevant to these heat transfer pathways are reviewed and suggestions are provided for improving existing headgear concepts and developing new concepts, ultimately leading to more accepted headgear.

The report of working group 4 (WG4) provides information about activities undertaken during the COST Action TU1101 “Towards safer bicycling through optimization of bicycle helmets and usage” to better understand the ergonomics of thermal aspects and to work towards the tasks defined in the memorandum of understanding (COST Secretariat, 2011).

Primary Task 5: Development of guidelines for thermally-optimized helmet designs

Secondary Task 3: Inform impact studies on which kinds of ventilation structures are useful and which are unnecessary

Secondary Task 7: Review of physiological and comfort effect of wearing bicycle helmets

All the chapters listed below include important aspects contributing to the primary task 5. Modelling and simulation tools (Chapter II) are becoming more and more important in research and development of new bicycle helmets but also in the development of guidelines, directives and norms. An example for the industrial application of models is given in Chapter III. The investigation of different forms of helmet coverings provides important information about the future direction for the development of helmet designs. Completely new helmet designs and the respective thermal properties are presented in Chapter IV. This chapter shows a different approach for finding new concepts of helmet designs. In Chapter V, new project initiatives are introduced to improve thermal aspects of helmets but also to include information and communication techniques (ICT) into helmets. Finally, the tasks of WG4 are summarized in Chapter VI, conclusions are drawn and an outlook is provided regarding the future development of helmets to comply with the requests of two-wheel commuters (including e-bikes, segway and others). (Less)
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author
organization
publishing date
type
Book/Report
publication status
published
subject
pages
75 pages
publisher
COST Action TU1101 / HOPE, Brussels, Belgium
ISBN
978-90-5986-469-6
language
English
LU publication?
yes
id
5eff0f74-d30a-4469-aa3c-059e76aa812a (old id 7866952)
alternative location
http://www.bicycle-helmets.eu/images/downloads/COST-Action-TU1101_WG4_2015.pdf
http://www.bicycle-helmets.eu/
date added to LUP
2015-10-06 15:53:01
date last changed
2016-04-16 08:10:52
@techreport{5eff0f74-d30a-4469-aa3c-059e76aa812a,
  abstract     = {The thermal effects related to wearing a bicycle helmet are complex and different studies have investigated single parts of this topic. A literature review was produced and published (Bogerd et al., 2015) summarizing the different findings to give a complete overview on this topic as well as to suggest new perspectives. Headgear increases head insulation and therefore is mainly problematic under warm conditions, which is the focus of that review. Helmets do not affect physiological parameters other than the local skin temperature and sweat rate. However, the head is among the most sensitive body parts related to thermal comfort, thereby directly affecting the willingness to wear headgear. Several methods have been used to study thermal aspects of headgear, which could be categorized as (i) numerical, (ii) biophysical, (iii) combined numerical and biophysical, and (iv) user trials. The application of these methods established that heat transfer mainly takes place through radiation and convection. Headgear parameters relevant to these heat transfer pathways are reviewed and suggestions are provided for improving existing headgear concepts and developing new concepts, ultimately leading to more accepted headgear.<br/><br>
The report of working group 4 (WG4) provides information about activities undertaken during the COST Action TU1101 “Towards safer bicycling through optimization of bicycle helmets and usage” to better understand the ergonomics of thermal aspects and to work towards the tasks defined in the memorandum of understanding (COST Secretariat, 2011).<br/><br>
Primary Task 5: Development of guidelines for thermally-optimized helmet designs<br/><br>
Secondary Task 3: Inform impact studies on which kinds of ventilation structures are useful and which are unnecessary<br/><br>
Secondary Task 7: Review of physiological and comfort effect of wearing bicycle helmets<br/><br>
All the chapters listed below include important aspects contributing to the primary task 5. Modelling and simulation tools (Chapter II) are becoming more and more important in research and development of new bicycle helmets but also in the development of guidelines, directives and norms. An example for the industrial application of models is given in Chapter III. The investigation of different forms of helmet coverings provides important information about the future direction for the development of helmet designs. Completely new helmet designs and the respective thermal properties are presented in Chapter IV. This chapter shows a different approach for finding new concepts of helmet designs. In Chapter V, new project initiatives are introduced to improve thermal aspects of helmets but also to include information and communication techniques (ICT) into helmets. Finally, the tasks of WG4 are summarized in Chapter VI, conclusions are drawn and an outlook is provided regarding the future development of helmets to comply with the requests of two-wheel commuters (including e-bikes, segway and others).},
  author       = {Annaheim, Simon and Aerts, Jean-Marie and Bröde, Peter and De Bruyne, Guido and Flouris, Andreas D. and Hursa Sajatovic, Anica and Kuklane, Kalev and Martinez, Natividad and Sotto Mayor, Tiago and Bogerd, Cornelis P.},
  institution  = {COST Action TU1101 / HOPE, Brussels, Belgium},
  isbn         = {978-90-5986-469-6},
  language     = {eng},
  pages        = {75},
  title        = {Final report of Working Group 4: Ergonomics of thermal effects. A COST Action TU1101 / HOPE collaboration},
  year         = {2015},
}