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Heat loss of tap-off units of a busbar trunking system
Koudelka, Jan ; Krbal, Michal (referee) ; Zezula, Michal (referee) ; Lázničková, Ilona (advisor)
The thesis deals with the issue of design of tap-off units of a busbar trunking system in point of view of a heat loss. At first the issue of busbar trunking systems as an alternitive to wires is presented in the thesis. Then there is a deep analysis of a design of a tap-off unit, including the issue of calculating the temperature-rise. For the design, a computer program was created, whose presentation makes up the cardial part of the thesis. Not only its parts are described, but also there is written how to work with it and which datas it uses. At last results of the design of the tap-off unit in the program are compared to the results of the type test of the temperature-rise.
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The heat build-up of tap-off units of busbar trunking system in relationship to their surfacing.
Forejtník, Jan ; Radil, Lukáš (referee) ; Foral, Štěpán (advisor)
This study is dedicated to the effect of surface modification on lid warming of busbar trunking system BD2 which is manufactured by Siemens company in Mohelnice town (CZ). By using experimental methods, it investigates heat transfer by radiation and natural convection. It evaluates which type of surface modification is more effective by transfer heat. This study uses a method of emisivity comparison and a procedure given in standards for heat up test afterwards. It led to recognition, that various colour shades used on busbar system have similar high emissivity. Smooth colour spraying transfers heat a bit more effectively than rough colour spraying. Outputs of supplementary measurements give basis for numerical simulations in SolidWorks software. Numerical analysis assists to interpret results, for example by sensitivity study of heat transfer depending on emissivity.
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The heat build-up of tap-off units of busbar trunking system in relationship to their surfacing.
Forejtník, Jan ; Radil, Lukáš (referee) ; Foral, Štěpán (advisor)
This study is dedicated to the effect of surface modification on lid warming of busbar trunking system BD2 which is manufactured by Siemens company in Mohelnice town (CZ). By using experimental methods, it investigates heat transfer by radiation and natural convection. It evaluates which type of surface modification is more effective by transfer heat. This study uses a method of emisivity comparison and a procedure given in standards for heat up test afterwards. It led to recognition, that various colour shades used on busbar system have similar high emissivity. Smooth colour spraying transfers heat a bit more effectively than rough colour spraying. Outputs of supplementary measurements give basis for numerical simulations in SolidWorks software. Numerical analysis assists to interpret results, for example by sensitivity study of heat transfer depending on emissivity.
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|
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The heat build-up of tap-off units of busbar trunking system in relationship to their surfacing.
Forejtník, Jan ; Radil, Lukáš (referee) ; Foral, Štěpán (advisor)
This study is dedicated to the effect of surface modification on lid warming of busbar trunking system BD2 which is manufactured by Siemens company in Mohelnice town (CZ). By using experimental methods, it investigates heat transfer by radiation and natural convection. It evaluates which type of surface modification is more effective by transfer heat. This study uses a method of emisivity comparison and a procedure given in standards for heat up test afterwards. It led to recognition, that various colour shades used on busbar system have similar high emissivity. Smooth colour spraying transfers heat a bit more effectively than rough colour spraying. Outputs of supplementary measurements give basis for numerical simulations in SolidWorks software. Numerical analysis assists to interpret results, for example by sensitivity study of heat transfer depending on emissivity.
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Heat loss of tap-off units of a busbar trunking system
Koudelka, Jan ; Krbal, Michal (referee) ; Zezula, Michal (referee) ; Lázničková, Ilona (advisor)
The thesis deals with the issue of design of tap-off units of a busbar trunking system in point of view of a heat loss. At first the issue of busbar trunking systems as an alternitive to wires is presented in the thesis. Then there is a deep analysis of a design of a tap-off unit, including the issue of calculating the temperature-rise. For the design, a computer program was created, whose presentation makes up the cardial part of the thesis. Not only its parts are described, but also there is written how to work with it and which datas it uses. At last results of the design of the tap-off unit in the program are compared to the results of the type test of the temperature-rise.
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