Оцінка теплової ефективності екологічно орієнтованих збірно-модульних будівель: розбір практичного кейсу

The relevance of eco-oriented modular construction is constantly growing due to the aggravation of housing and environmental problems associated with military operations on the territory of Ukraine. At the same time, there are certain challenges limiting the widespread use of modular buildings in Ukraine, which are mainly associated with a high level of consumer skepticism regarding the quality and energy efficiency of modular buildings compared to traditional construction practices. On the example of a frame modular single-family building «QHome-26», located on the outskirts of the Chernihiv city, the thermal characteristics of prefabricated modular construction were studied. By using infrared thermography, monitoring of existing cold bridges and the main heat losses in the building's envelope was carried out. It was experimentally established that the potential source of heat loss of the building is translucent structural elements that does not meet modern standards, as well as the foundation of the building. At the same time, the results of the thermal calculation of the building's enclosing structures showed that the main source of heat loss at the level of 38.5 % of the total losses are walls. Heat losses for heating ventilated air are 26.3 %. While up to 14.5 % of heat is lost throughout the windows. Heat losses through the roof and floor are 12.6 % and 9.9 %, respectively.