background: noise is one of the most important harmful agents in work environment. noise pollution in oil refinery industries is related to workers' health. this study aimed to determine the overall noise pollution of an oil refinery operation and its frequency analysis to determine the control plan for a vent noise in these industries. methods: this experimental study performed in control unit...

An extensive product range is mandatory to be a key player in the pipe insulation market. The polyurethane preinsulated pipe producers are responding to global opportunities by diversifying their activities into industrial, marine, oil and gas applications. Moreover, the requirements for traditional district heating preinsulated pipes including initial thermal conductivity and its ageing perfor...

The polycondensation reaction to produce polydextrose can be intensified by using micro-process engineering. Fluid Guiding Elements are additively manufactured internal inserts that have already shown their potential intensify heat transfer in double-pipe exchangers. This study investigated the intensification of yield when these were used. Different reactor lengths and geometries, as well diff...

Paraffin melting is widely used in the fields of phase change materials energy storage, gathering and transportation pipe-line paraffin removal, etc. Analysis mechanism influencing factors circular tube deeply has important guiding significance for improving heat storage capacity by changing structure material device ensuring safe crude-oil pipe-line. A double distribution lattice Boltzmann mod...