Which option identifies what the engineer needs to use in the following scenario? Timothy is trying to establish the boundaries of a life cycle analysis so that his team knows which parameters to observe in their upcoming project.
oholistic approach
osustainable yield
O impact analysis
O goal delinition

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.