The Experts below are selected from a list of 279 Experts worldwide ranked by ideXlab platform
Yuji Ataka - One of the best experts on this subject based on the ideXlab platform.
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measurement of semi volatile organic compounds emitted from various types of indoor materials by thermal desorption Test Chamber method
Building and Environment, 2008Co-Authors: H Katsumata, Shuzo Murakami, Shinsuke Kato, K Hoshino, Yuji AtakaAbstract:This paper presents measurements on semi-volatile organic compounds (SVOCs) emitted from building materials, household electric appliances, and indoor products. It is extremely difficult to apply the emission Test Chamber method to the accurate measurement of SVOCs because they are absorbed by the internal walls of the Chamber. The authors have reported on the development of the thermal desorption Test Chamber method that can measure correctly the emission rates of SVOCs emitted from materials under actual room-air temperature conditions. This method is composed of two measurement steps. In the first step we capture organic compounds emitted as gaseous matter. After removing the Test piece from the Chamber, in the second step we continuously gather the organic compounds absorbed by the Chamber's internal walls while heating the Chamber. We have used this method to measure emissions from various objects, and have confirmed that most SVOCs are caught in the second step. In this paper, we also report on our verification of the accuracy of SVOC measurements taken using an emission Chamber and describe the emission characteristics of SVOCs.
Jarek Kurnitski - One of the best experts on this subject based on the ideXlab platform.
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experimental analysis of emission efficiency of parallel and serial connected radiators in en442 Test Chamber
Applied Thermal Engineering, 2018Co-Authors: Karlvillem Vosa, Andrea Ferrantelli, Tuule Mall Kull, Jarek KurnitskiAbstract:Abstract In the wide context of energy performance, the design of standard radiators has shown a large improvement in the past decades. Nevertheless, it is still necessary to achieve better understanding of the radiators emission losses. We conduct measurements of temperature and heat output of different types of emitters in a Test Chamber of the standard EN 442-2, aiming to quantify the emission efficiency differences of the radiators studied. We find that in the absence of ventilation, the air stratification is relevant and can explain the heat output differences between repeated Tests of the same radiator. Moreover, correlation curves are derived between relative heat output and radiative component, and between heat output and air and operative temperature difference. Our detailed analysis shows that thermal comfort is more easily achieved with 11-type radiators, due to the bigger panel surface area, and with 22-type serial-connected radiators, due to their higher front surface panel temperature. From the measured data we derive the ratio of surface to total thermal resistance of the radiator, and the convective heat transfer coefficient dependency on the room geometry. While the majority of our results apply strictly to the EN442 Test Chamber, these can be used for the application to an ordinary room.
H Katsumata - One of the best experts on this subject based on the ideXlab platform.
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measurement of semi volatile organic compounds emitted from various types of indoor materials by thermal desorption Test Chamber method
Building and Environment, 2008Co-Authors: H Katsumata, Shuzo Murakami, Shinsuke Kato, K Hoshino, Yuji AtakaAbstract:This paper presents measurements on semi-volatile organic compounds (SVOCs) emitted from building materials, household electric appliances, and indoor products. It is extremely difficult to apply the emission Test Chamber method to the accurate measurement of SVOCs because they are absorbed by the internal walls of the Chamber. The authors have reported on the development of the thermal desorption Test Chamber method that can measure correctly the emission rates of SVOCs emitted from materials under actual room-air temperature conditions. This method is composed of two measurement steps. In the first step we capture organic compounds emitted as gaseous matter. After removing the Test piece from the Chamber, in the second step we continuously gather the organic compounds absorbed by the Chamber's internal walls while heating the Chamber. We have used this method to measure emissions from various objects, and have confirmed that most SVOCs are caught in the second step. In this paper, we also report on our verification of the accuracy of SVOC measurements taken using an emission Chamber and describe the emission characteristics of SVOCs.
Shuzo Murakami - One of the best experts on this subject based on the ideXlab platform.
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measurement of semi volatile organic compounds emitted from various types of indoor materials by thermal desorption Test Chamber method
Building and Environment, 2008Co-Authors: H Katsumata, Shuzo Murakami, Shinsuke Kato, K Hoshino, Yuji AtakaAbstract:This paper presents measurements on semi-volatile organic compounds (SVOCs) emitted from building materials, household electric appliances, and indoor products. It is extremely difficult to apply the emission Test Chamber method to the accurate measurement of SVOCs because they are absorbed by the internal walls of the Chamber. The authors have reported on the development of the thermal desorption Test Chamber method that can measure correctly the emission rates of SVOCs emitted from materials under actual room-air temperature conditions. This method is composed of two measurement steps. In the first step we capture organic compounds emitted as gaseous matter. After removing the Test piece from the Chamber, in the second step we continuously gather the organic compounds absorbed by the Chamber's internal walls while heating the Chamber. We have used this method to measure emissions from various objects, and have confirmed that most SVOCs are caught in the second step. In this paper, we also report on our verification of the accuracy of SVOC measurements taken using an emission Chamber and describe the emission characteristics of SVOCs.
K Hoshino - One of the best experts on this subject based on the ideXlab platform.
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measurement of semi volatile organic compounds emitted from various types of indoor materials by thermal desorption Test Chamber method
Building and Environment, 2008Co-Authors: H Katsumata, Shuzo Murakami, Shinsuke Kato, K Hoshino, Yuji AtakaAbstract:This paper presents measurements on semi-volatile organic compounds (SVOCs) emitted from building materials, household electric appliances, and indoor products. It is extremely difficult to apply the emission Test Chamber method to the accurate measurement of SVOCs because they are absorbed by the internal walls of the Chamber. The authors have reported on the development of the thermal desorption Test Chamber method that can measure correctly the emission rates of SVOCs emitted from materials under actual room-air temperature conditions. This method is composed of two measurement steps. In the first step we capture organic compounds emitted as gaseous matter. After removing the Test piece from the Chamber, in the second step we continuously gather the organic compounds absorbed by the Chamber's internal walls while heating the Chamber. We have used this method to measure emissions from various objects, and have confirmed that most SVOCs are caught in the second step. In this paper, we also report on our verification of the accuracy of SVOC measurements taken using an emission Chamber and describe the emission characteristics of SVOCs.