A PORTABLE TESTER FOR EVALUATION OF THERMO-PHYSIOLOGICAL COMFORT OF CAR SEATS IN REAL CONDITIONS OF THEIR USE

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A PORTABLE TESTER FOR EVALUATION OF THERMO-PHYSIOLOGICAL COMFORT OF CAR SEATS IN REAL CONDITIONS OF THEIR USE

Popis výsledku v původním jazyce

Standard testers of thermophysiological comfort of fabrics require flat samples ofspecial dimensions and limited thickness. Water vapour can pass through thesesamples from the porous bottom surface of the tester to the upper surface of the testedfabric only. The bottom surface of these testers must be covered by semipermeablemembranes, to keep the tested fabrics dry. Thus, car seats cannot be tested in realconditions of their use, as in seats water vapour always passes from the human bodydownward into the fabric system. This problem causes the large bottom plate, whichcannot keep the liquid behind the membrane in the inverse position.A new SITCOM tester of thermophysiological comfort of car seats, described in thepaper, exhibits small shaped measuring head covered by semipermeable foil, whichstops the penetration of liquid water even in the inverted position. Thus, the measuringhead contacts directly the car seat surfaces in real conditions of their use and thewater vapour from the simulated skin can pass down into the seat. The instrumentthen records evaporation (cooling) heat flow resulting from water vapour evaporationfrom the simulated driver´s body into the car seat in a real vehicle. For dry SITCOMsystem heated 10°C above the seat temperature, similarly thermal heat flow betweenthe simulated body and the seat is recorded.The paper contains first (preliminary) experimental values of heat flow achieved attesting of car seats within 30 and 60 seconds.

Název v anglickém jazyce

A PORTABLE TESTER FOR EVALUATION OF THERMO-PHYSIOLOGICAL COMFORT OF CAR SEATS IN REAL CONDITIONS OF THEIR USE

Popis výsledku anglicky

Standard testers of thermophysiological comfort of fabrics require flat samples ofspecial dimensions and limited thickness. Water vapour can pass through thesesamples from the porous bottom surface of the tester to the upper surface of the testedfabric only. The bottom surface of these testers must be covered by semipermeablemembranes, to keep the tested fabrics dry. Thus, car seats cannot be tested in realconditions of their use, as in seats water vapour always passes from the human bodydownward into the fabric system. This problem causes the large bottom plate, whichcannot keep the liquid behind the membrane in the inverse position.A new SITCOM tester of thermophysiological comfort of car seats, described in thepaper, exhibits small shaped measuring head covered by semipermeable foil, whichstops the penetration of liquid water even in the inverted position. Thus, the measuringhead contacts directly the car seat surfaces in real conditions of their use and thewater vapour from the simulated skin can pass down into the seat. The instrumentthen records evaporation (cooling) heat flow resulting from water vapour evaporationfrom the simulated driver´s body into the car seat in a real vehicle. For dry SITCOMsystem heated 10°C above the seat temperature, similarly thermal heat flow betweenthe simulated body and the seat is recorded.The paper contains first (preliminary) experimental values of heat flow achieved attesting of car seats within 30 and 60 seconds.

Druh

O - Ostatní výsledky

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů