1- A wall 2 cm thick is to be constructed from material that has an average thermal conductivity of 1.3 W/m •C. The wall is to be insulated with material having an average thermal conductivity of 0.35W/m. C, so that the heat loss per square meter will not exceed 1830W. Assuming that the inner and outer surface temperatures of the insulated wall are 1300 and 30•C, calculate the thickness of insulation required.

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Fire safety

Fire safety is a new domain emerged in the early 90s to enable the design of buildings, structures, and infrastructure against destruction through fire. It also includes the provisions of building codes. This field is mostly associated with the design and efficient planning of a building, to reduce the destruction caused by fire. The branch of engineering that deals with it for the safety of the buildings from destruction of fire, is known as fire safety engineering.