Selecting Suitable Insulating Windows and Doors Based on Heat-Transfer Principles (Part II): Factors Affecting the Performance of IGU-Based Insulating Window and Door Systems

Evaluation Method for Insulating Windows and Doors After understanding the energy distribution governing window and door insulation, two boundary definitions must be clear when selecting a system. For thermal transmittance K(U), solar irradiance is set to “0”. Therefore, when the U-value is used to assess transparent materials, it evaluates only insulation against long-...

IG and IGU systems both use transparent glass as the main component. However, the different gas conditions in their cavities create both similarities and differences in heat-transfer behaviour. Because both systems use the same transparent glass, their visible light transmittance and direct solar transmittance are essentially the same. The only slight difference is the ...

A large onshore LNG tank often remains in service for decades, from design and construction through operation. What matters is whether it remains stable, reliable, and effective throughout long-term service. If insulation performance deteriorates, BOR may rise, BOG may increase, energy consumption may grow, and tank operating strategies may be affected. LNG tank cold i...