The insulation values of the materials varied between 0.01 Clo (plastic bag) to 2.79 Clo (2 layers of a hospital duvet). Given the range of insulating materials available for outdoor activities, significant improvement in insulation of patients in the OR is both possible and desirable. 展开 被...
The insulation figure of merit, "cost of insulation per square foot R-value, is explained as a means of comparing insulating materials. While the insulation cost data in the original article dates back to November 1983, the concept of using an R-value normalized cost to evaluate insulation is...
Novel high-performance insulation materials with superior low thermal conductivity values offer several advantages in comparison with conventional insulation products. Following a brief introduction of the principles of heat transfer in thermal insulations, two classes of superinsulations will be discussed in...
Ceramic building insulation for super high R-values. This article discusses the use in buildings of ceramic insulation, a variation on perlite insulation material produced by superheating. We list other high-R insulation materials that may be used in super-insulated buildings for maximum energy saving...
There is a challenge to reduce the energy use of historic buildings while preserving their cultural values. New materials and solutions are being developed that could contribute to improving the energy performance of historic buildings without altering their character defining elements. The aim of this...
Remember, the values calculated here should be taken as a rough guide, as certain materials (i.e. reflective or foil insulation) the total R-Value effect cannot be calculated by straight addition of all the component R-Values. Also remember, when considering the R-Value of insulation in a ...
R-values depend on two factors: Thickness of the Material and it’s Heat Conductivity. Therefore, it is technically possible for insulation with a low R-value per inch, such as Fiberglass Blanket, to raise its R-value by merely adding more layers which increase the materials’ thickness. ...
2.2.7 Dynamic Insulation Materials Dynamic Insulation Materials (DIMs) are capable of changing their thermal conductivity by varying the gas concentration in the pore, molecules mean free-path, molecules and inner pore collision, pore surface emissivity and lattice thermal conductivity. Imbabi [42] in...
Upholding the values of the Saint-Gobain group To help keeping global temperature increase within 1.5°C above pre-industrial levels, Saint-Gobain has committed to become net “zero carbon company” by 2050. The Group is already making a significant contribution to improving energy efficiency and...
Thermal aging, reduction in performance of thermal insulation materials over a period of time, is needed to be addressed in the design of the advanced polymeric composites. It can originate from the changes in the nature of material due to damage to the polymer construct, porous structure shrinka...