Determining the thermal performance of ground-coupled heat exchangers involves assessing factors such as soil properties, pipe material and dimensions, air flow rate, and climate data. For example, calculations might predict the outlet air temperature of an earth tube based on the ambient air temperature, soil temperature at the tube depth, and the length and diameter of the tube.
Accurate thermal modeling is essential for optimizing system design and ensuring effective passive cooling. Properly designed systems can reduce reliance on energy-intensive air conditioning, leading to lower operating costs and a smaller carbon footprint. This approach to temperature regulation has historical precedents in vernacular architecture, and modern engineering allows for more precise design and implementation.
