A New Metre for Cheap, Quick, Reliable and Simple Thermal Transmittance (U-Value) Measurements in Buildings

Area of Science:

• Building science and energy efficiency
• Thermal performance analysis
• Measurement instrumentation

Background:

• Current methods for thermal transmittance measurement in buildings are time-consuming and require extensive post-processing.
• Existing devices, relying on heat flow sensors, are not efficient for rapid, large-scale assessments needed in building energy retrofitting.
• There is a need for a more streamlined and accessible approach to thermal transmittance measurement.

Purpose of the Study:

• To develop a novel, efficient, and user-friendly thermal transmittance meter for buildings.
• To overcome the limitations of existing heat flow-based measurement devices.
• To provide a modular, scalable, and wireless solution for rapid thermal transmittance assessment.

Main Methods:

• Development of a new methodology based on three temperature measurements derived from fundamental physical laws.
• Implementation of the methodology into a novel, modular, scalable, and fully wireless thermal transmittance meter.
• Comparative analysis of the developed system against traditional heat flow-based methods using a side-by-side test.

Main Results:

• The developed thermal transmittance meter is modular, scalable, and fully wireless.
• The device can perform numerous simultaneous measurements as required by the user.
• Comparative tests demonstrated that the new meter provides cheap, quick, reliable, and simple thermal transmittance measurements.

Conclusions:

• The novel thermal transmittance meter significantly improves the efficiency and accessibility of building energy retrofitting assessments.
• The wireless and modular design allows for flexible and scalable deployment in various building scenarios.
• This innovation offers a cost-effective and reliable alternative to conventional methods for evaluating building thermal performance.