Title:

Heat transfer characteristics of a combination of two double-chamber windows

Alternative title:

Charakterystyka przenikania ciepła przez połączenie dwóch okien dwukomorowych

Creator:

Basok, Borys ; Davydenko, Borys ; Pavlenko, Аnatoliy ; Novikov, Volodymyr ; Goncharuk, Svitlana

Subject:

heat loss ; double-chamber windows ; numerical modelling ; heat transfer resistance

Description:

Low-emissivity coatings on glass surfaces, inert gas instead of air between glasses, and double-glazed windows are usually used to reduce heat loss from a room through windows. This effect can also be achieved by installing two double-chamber windows in one window opening at a certain distance from each other. This work uses numerical modelling to study the characteristics of heat transfer through a system of two two-chamber windows. The distributions of temperature and airflow velocity due to natural convection in the chambers of double-chamber windows and the space between the windows are analyzed. The distributions of temperatures and heat fluxes over the surfaces of windows are determined depending on the distance between the windows. The dependences on the distance between the windows of radiation, convective, and total heat flow through a system of two double-chamber windows are studied. It is shown that two double-chamber windows located at a certain distance from each other make it possible to increase the heat transfer resistance compared to one two-chamber window without a low-emission coating by 2.6...2.8 times. As the distance between windows increases, a given system's overall heat transfer resistance increases. However, this increase becomes insignificant if this distance is greater than 80 mm.

Place of publishing:

Koszalin

Publisher:

Politechnika Koszalińska

Date:

2023

Type:

artykuł w czasopiśmie

Language:

eng

Is part of:

Rocznik Ochrona Środowiska. Vol. 25, s. 289-300

Rights:

Biblioteka Politechniki Koszalińskiej

Access rights:

internet

License:

Creative Commons BY-SA 4.0