موضوع: wall penetrations fireproofing

Will settle over time, losing some of its effectiveness. Open cell foams often have a low exothermic reaction temperature; will not harm coatings on electrical wiring, plumbing or other building components. The most effective air door for containing conditioned air inside a building with an open door will have a high face velocity at the opening, generated by top-down flow, and air recovery by a recirculating air plenum and duct return to the source fans. For industrial conditions, high face ve...

When you compare price to R value per sq ft the price is about the same. The classic version has a thermal resistance (R value) of 3.7 per inch and other versions have even higher values. It has an R-value of around 3.7 (RSI-0.65), equivalent to the median value for fiberglass batts. Some fiberglass is unfaced, some is paper-faced with a thin layer of asphalt, and some is foil-faced. Materials with one shiny side (such as foil-faced polystyrene) must be positioned with the shiny side facing an ...

Si-OAT coolants mix silicates with HOAT. HOAT coolants typically mix an OAT with a traditional inhibitor, usually silicates. Typically, OAT antifreeze contains an orange dye to differentiate it from the conventional glycol-based coolants (green or yellow), though some OAT products may contain a red or mauve dye. However, since 2018, they have moved on to G12EVO (TL 774-L) which no longer contains glycerol. To achieve interoperability between applications, neutral, non-proprietary or open standa...

When water is boiled the result is saturated steam, also referred to as "wet steam." Saturated steam, while mostly consisting of water vapor, carries some unevaporated water in the form of droplets. As the resulting "dry steam" is much hotter than needed to stay in the vaporous state it will not contain any significant unevaporated water. The fluid at that point may be a mix of steam and liquid droplets as it passes into the condenser. In contrast to a "subcritical boiler", a supercritical stea...