Comparison of Thermal Insulation performance of several kinds of exterior walls in humid Environment
Release time:
2022-08-05
The climate characteristics of hot summer and cold winter areas are as follows: hot and humid summer, high humidity, long duration and strong solar radiation; wet and cold winter, small temperature difference between day and night, weak solar radiation.
1 introduction.
The climate characteristics of hot summer and cold winter areas are as follows: hot and humid summer, high humidity, long duration and strong solar radiation; wet and cold winter, small temperature difference between day and night, weak solar radiation.
Humidity will not only reduce the comfort of the human body, but also reduce the thermal performance of the building envelope.
With the continuous improvement of people's requirements for the comfort of the living environment, the energy consumption of heating in winter and air conditioning in summer has increased sharply.
The exterior walls of traditional buildings in hot summer and cold winter areas use 240mm solid clay bricks. Because there is no heating and air conditioning in this area, the thermal insulation of the wall is not paid enough attention to, and the thermal performance is poor, so the energy is wasted seriously.
In recent years, a variety of new wall materials continue to emerge, creating conditions for building energy saving and consumption reduction.
In this paper, through the thermal testing of the building exterior walls of three different materials in Zhoushan area, the differences of thermal insulation performance of different walls are calculated and analyzed.
According to the requirements for thermal properties of walls in JGJ134-2001 "Design Standard for Energy Saving of Residential buildings in Hot Summer and Cold Winter areas", the thermal insulation performance of walls is evaluated, which provides a basis for the popularization and application of new energy-saving materials, and puts forward some suggestions on the energy-saving transformation of walls of existing buildings.
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