| 1. |
- Havenith, George, et al.
(författare)
-
A Database of Static Clothing Thermal Insulation and Vapor Permeability Values of Non-Western Ensembles for Use in ASHRAE Standard 55, ISO 7730 and ISO 9920
- 2015
-
Ingår i: ASHRAE Transactions. - 2378-2129. ; 121:Part 1, s. 197-215
-
Tidskriftsartikel (refereegranskat)abstract
- Four different thermal manikins (male and female shapes)in three different laboratories (UK, Sweden, and China) were used to determine the clothing thermal insulation values of 52 non-Western, mainly indoor clothing ensembles in order to expand the existing clothing database for use with ANSI/ASHRAE Standard 55-2013, Thermal Environmental Conditions for Human Occupancy (ASHRAE 2013a), ISO Standard 7730-2005, Ergonomics of the Thermal Environment -- Analytical Determination and Interpretation of Thermal Comfort Using Calculation of the PMV and PPD Indices and LocalThermal Comfort Criteria (ISO 2005), and ISO Standard 9920-2009, Ergonomics of the Thermal Environment -- Estimation of Thermal Insulation and Water Vapour Resistance of a Clothing Ensemble (ISO 2009). Insulation values varied over manikins, which is attributed to their different shapes and the different fit of the clothing. The mean value over three manikins is reported (with standard deviation) to include this potential real-life variation in the results. The relation of the clothing surface area factor to intrinsic clothing insulation was found to be different from that published for Western clothing. Prediction equations for the clothing surface area factor fcl based on the new data had only limited predictive power, which,however, was also the case for those obtained in the past for Western clothing. This issue seems to be commonly overlooked, as the use of these prediction equations is widespread. It has to be concluded that reliable fcl values can only be obtained when they are actually measured, as in the present work. However, we suggest that the concept of the fcl factor for the non-Western clothing may not be appropriate and may require further attention in research, as wide-falling-robes and gowns do not match the cylindrical clothing and air layer model on which the fcl concept is based. In summary, the results provide an extensive database of insulation values of non-Western clothing that is expected to be a valuable addition to ASHRAE Standard 55-2013 (ASHRAE 2013a), ISO Standard 7730-2005 (ISO 2005), and ISO Standard 9920-2009 (ISO 2009).
|
|
| 2. |
|
|
| 3. |
- W. Smallcombe, James, et al.
(författare)
-
Update of clothing database for existing and new Western clothing ensembles, including effects of posture, body and air movement : Report on manikin measurements for ASHRAE 1760-TRP.
- 2021
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- ASHRAE Research Project RP-1760 aimed to update thedatabase of western clothing as used in ANSI/ASHRAE Stan-dard 55-2013, Thermal Environmental Conditions for HumanOccupancy (ASHRAE 2013a), ISO Standard 7730-2005,Ergonomics of the Thermal Environment—Analytical Deter-mination and Interpretation of Thermal Comfort Using Calcu-lation of the PMV and PPD Indices and Local ThermalComfort Criteria (ISO 2005), and ISO Standard 9920-2009,Ergonomics of the Thermal Environment—Estimation ofThermal Insulation and Water Vapor Resistance of a ClothingEnsemble (ISO 2009). The previous database, established inthe 1970s and 1980s, relied mostly on single-zone manikinsand did not provide detail on air and body movement effects oninsulation. Insulation values of up to 70 clothing ensembles(31 male, 39 female) were measured in a static standingposture at 0.2, 0.4, and 1 m/s–1 (0.66, 1.31, and 3.28 ft/s–1) airspeed, walking in 0.2 and 1.0 m.s–1 air speed, and in a sittingposture in 0.2 m.s–1 air speed. Measurements were conductedin three laboratories on three manikins with up to 34 individ-ually controlled zones. In addition, vapor resistance was deter-mined in 31 ensembles. This new database provides total,intrinsic and air insulation values, vapor resistance, and cloth-ing area factors as well as correction factors to estimate thewind and movement effect on clothing insulation. Further-more, the model to estimate the clothing area factor from insu-lation values of the ensembles was updated reflecting changesin commonly worn clothing styles.
|
|
| 4. |
- Wang, Faming, et al.
(författare)
-
CLOTHING REAL EVAPORATIVE RESISTANCE DETERMINED BY MEANS OF A SWEATING THERMAL MANIKIN: A NEW ROUND-ROBIN STUDY
- 2014
-
Ingår i: Proceedings of Ambience 14&10i3m : Scientific Conference for Smart and Functional Textiles, Well-Being, Thermal Comfort in Clothing, Design, Thermal Manikins and Modellin, 7-9 September 2014, Tampere, Finland - Scientific Conference for Smart and Functional Textiles, Well-Being, Thermal Comfort in Clothing, Design, Thermal Manikins and Modellin, 7-9 September 2014, Tampere, Finland. - 2342-4540. - 9789521532696 ; 1
-
Konferensbidrag (refereegranskat)abstract
- The previous round-robin (RR) study on clothing evaporative resistance (Ret) has shown that the repeatability and reproducibility of clothing Ret measurements on sweating manikins were rather low. To further examine and enhance the measurement accuracy, a new strict but feasible test protocol was proposed and thoroughly examined in a new round-robin test. Eight laboratories participated in this study and three types of sweating manikins were used. Six clothing ensembles including body mapping cycling wear, light summer workwear, typical spring and autumn clothing for people living in subtropical regions, cold protective clothing and functional Gore-Tex coverall were selected. The measurement repeatability and reproducibility are analysed. The ultimate goal of the RR study is to provide solid support for amending ASTM F2370 standard and/or drafting a new ISO/EN standard.
|
|
