Change in heat transfer resistance of a window profile made of different materials
DOI:
https://doi.org/10.32347/2707-501x.2020.43.96-103Keywords:
window profile, different materials, metal-plastic profile elements, wood, groove, heat-saving material, stiffnes, strength, heat transfer resistance coefficient, heat insulation, sound insulation.Abstract
To warm the window system, high-quality thermal insulation of the window profile is required, which is measured by the reduced coefficient of heat transfer resistance.
The article sets the task of developing the design of the window profile from various materials in which the change in heat transfer resistance occurs without equipment readjustment.
The author analyzes the main disadvantages of existing designs of metal-plastic profiles, which have a sufficiently high coefficient of heat transfer resistance, as well as profiles that allow you to change the coefficient of heat transfer resistance of the window profile.
It was found that most window profile designs do not allow changing the coefficient of heat transfer resistance of the profile without changing its thickness. The consumer is not able to choose a profile design of a certain thickness, but with a large heat transfer coefficient. Such an opportunity exists only if you change the profile material. It has been established that window profile constructions that allow changing the heat transfer resistance coefficient without changing the profile thickness are designed only for window systems made of metal-plastic. The use of existing window profile designs in which it is possible to change the heat transfer coefficient of resistance for a window profile made of various materials is possible, but requires a certain readjustment of equipment, which leads to a rise in the cost of the window system and negatively affects the ability of customers to buy this type of product.
The technological possibility of changing the heat transfer resistance coefficient of window profiles made of various materials in various ways without changing the thickness of the profile and without changing equipment is shown.
The proposed design of a window profile made of various materials provides a higher coefficient of heat transfer resistance of the window profile, improves the soundproofing properties of the window system, eliminates the need for certain equipment readjustment, maintains the simplicity of window profile production, and almost does not increase the cost of the window system. The social value of the proposed design is that it retains aesthetic qualitiesReferences
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