Optimizing the sealing of tubular heating elements
(2019) FKMM01 20182Materials Engineering
- Abstract
- Tubular heating elements, produced by Backer AB are today commonly used, serving as systems for intelligent heating in automotive, medical and household industries. Tubular heating element consists of a mantle, resistance wire, electrical insulation (magnesium oxide) and a sealing. When active, an electric current transfers heat from the resistance wire of the heating element to the surroundings without the risk of current leakage. This is due to electrical insulation obtained by magnesium oxide (MgO), which possesses low electric conductivity making it an excellent electric insulator.
MgO is hygroscopic and in the presence of moisture, MgO absorbs water and forms magnesium hydroxide (Mg(OH)2), which if hydrated causes bad electrical... (More) - Tubular heating elements, produced by Backer AB are today commonly used, serving as systems for intelligent heating in automotive, medical and household industries. Tubular heating element consists of a mantle, resistance wire, electrical insulation (magnesium oxide) and a sealing. When active, an electric current transfers heat from the resistance wire of the heating element to the surroundings without the risk of current leakage. This is due to electrical insulation obtained by magnesium oxide (MgO), which possesses low electric conductivity making it an excellent electric insulator.
MgO is hygroscopic and in the presence of moisture, MgO absorbs water and forms magnesium hydroxide (Mg(OH)2), which if hydrated causes bad electrical insulation of heating elements. This makes moisture a major problem and necessitates insulation through the usage of a sealing. Today, the application of sealing takes place in the latter stages of production, increasing the risk of moisture penetration of the heating elements during fabrication. (Less) - Popular Abstract
- Tubular heating elements are used for intelligent heating applications in different industries. Today, moisture is a major problem, which causes bad electrical insualtion of the heating elements. To prevent this a sealing is a necessity. Today, the sealing process takes place in latter stages of production, increasing the risk of mosiutre penetration. Studying the effect of mositure on electrical insualtion properties of heating elements could improve the understadning of such, which is crucial in order to optimize the production. Investigation and evaluation of new sealing materials is another aspect that can be useful for optimizing tubular heating elements. The studies made in this project were able to provide a better understanding of... (More)
- Tubular heating elements are used for intelligent heating applications in different industries. Today, moisture is a major problem, which causes bad electrical insualtion of the heating elements. To prevent this a sealing is a necessity. Today, the sealing process takes place in latter stages of production, increasing the risk of mosiutre penetration. Studying the effect of mositure on electrical insualtion properties of heating elements could improve the understadning of such, which is crucial in order to optimize the production. Investigation and evaluation of new sealing materials is another aspect that can be useful for optimizing tubular heating elements. The studies made in this project were able to provide a better understanding of how mosiutre affect electrical insulation of heating elements while also contributing useful knowledge regarding sealing materials. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/8973430
- author
- Almblad, Victor LU
- supervisor
-
- Dmytro Orlov LU
- organization
- course
- FKMM01 20182
- year
- 2019
- type
- H2 - Master's Degree (Two Years)
- subject
- report number
- ISRN LUTFD2/TFMT--19/5059—SE
- other publication id
- ISRN
- language
- English
- id
- 8973430
- date added to LUP
- 2019-03-25 10:24:55
- date last changed
- 2019-03-25 10:24:55
@misc{8973430,
abstract = {{Tubular heating elements, produced by Backer AB are today commonly used, serving as systems for intelligent heating in automotive, medical and household industries. Tubular heating element consists of a mantle, resistance wire, electrical insulation (magnesium oxide) and a sealing. When active, an electric current transfers heat from the resistance wire of the heating element to the surroundings without the risk of current leakage. This is due to electrical insulation obtained by magnesium oxide (MgO), which possesses low electric conductivity making it an excellent electric insulator.
MgO is hygroscopic and in the presence of moisture, MgO absorbs water and forms magnesium hydroxide (Mg(OH)2), which if hydrated causes bad electrical insulation of heating elements. This makes moisture a major problem and necessitates insulation through the usage of a sealing. Today, the application of sealing takes place in the latter stages of production, increasing the risk of moisture penetration of the heating elements during fabrication.}},
author = {{Almblad, Victor}},
language = {{eng}},
note = {{Student Paper}},
title = {{Optimizing the sealing of tubular heating elements}},
year = {{2019}},
}