Why is less heat lost in a dome- shaped dwelling ?

Question

Why is less heat lost in a dome- shaped dwelling ?

Answer 1

The previous answer is correct, spherical shapes maximize volume for surface area.  Several methods of heat transfer are at play which also increase spherical shape performance.  Lower surface area will benefit heat loss due to conduction, convection and radiation simply because heat transfer is a function of surface area.  Air flow around a sphere will be more laminar (smooth) which will also reduce convection and conduction because turbulent flow increases heat transfer.  Turbulent flow principles are applied in plate heat exchangers to maximize heat transfer rates.

Answer 2

A dome is a portion of a sphere, and a shere is the volume with the least surface area. Heat loss is a function of surface.

Less surface implies less heat loss.