In: Physics
Consider a 2.5cm diameter thin walled horizontal cylindrical pipe that carries chilled water at about 5°C. The pipe is very long and is indoors in a climate controlled area with essentially still air. Design an insulation system that will reduce heat gain per unit length of pipe by at least 75% as compared to the heat gain to the bare pipe. Completely specify the insulation system (materials, dimensions, etc.) you design.