Solar heat flux reduction through roof using porous insulation layer

Solar Energy Collection using a Double-layer Roof

The purpose of this study is to investigate the efficiency of a double-layer roof in collecting solar energy as an application to the areas such as raising high-end temperature of organic Rankine cycle (ORC). The by-product of the solar roof is to reduce building air-conditioning loads. The experimental apparatus are arranged to evaluate the effects of the solar roof in absorbing solar energy. ...

Understanding the porosity dependence of heat flux through glass fiber insulation

In this paper, we describe the mathematical modeling of heat flow across a glass fiber medium. Using different mathematical models we try to explain the porosity dependence of the heat flow which is observed in experiments.

MERLOT: A Model for Flow and Heat Transfer through Porous Media for High Heat Flux Applications

Thermal Infrared Inspection of Roof Insulation Using Unmanned Aerial Vehicles

UAVs equipped with high-resolution thermal cameras provide an excellent investigative tool used for a multitude of building-specific applications, including roof insulation inspection. We have presented in this study a relative thermographic calibration algorithm and a superpixel Markov Random Field model to address problems in thermal infrared inspection of roof insulation using UAVs. The rela...

Accumulated snow layer influence on the heat transfer process through green roof assemblies

A green roof can reduce the peak thermal cooling loads and reduce the building energy consumption during the summer. It is also necessary to understand the thermal performance of these green roof assemblies during the winter when affected by an accumulation of snow on the rooftops. This study presents an experimental investigation and discusses the snow influence on the heat transfer processes ...