World · India Bureau
Swedish hospital harnesses winter snow for summer cooling system
A central Swedish hospital has successfully implemented an innovative cooling solution that captures winter snow and uses its meltwater to regulate temperatures during warmer months. The system demonstrates the viability of seasonal thermal storage for large institutional buildings.
LSN India ·
A hospital in Sundsvall, central Sweden, has adopted an unconventional approach to climate control by storing winter snow for use as a natural cooling medium during summer months. The facility accumulates snow during winter in a specially designed, heavily insulated storage facility, where it is preserved until the warmer season arrives.
During summer, the accumulated snow melts and the resulting water is circulated through the hospital's cooling systems, providing temperature regulation for the building's interior spaces. Research into the system's effectiveness revealed that proper insulation is critical to its success, with unprotected snow melting completely by mid-June if left exposed to the elements.
Scientific analysis of the hospital's operation demonstrated that stored snow could reliably meet the facility's cooling requirements from May through August, a four-month period that typically demands significant energy expenditure for mechanical cooling systems. The findings suggest that seasonal snow storage presents a viable alternative for reducing energy consumption in facilities located in climates with substantial winter snowfall.
The innovative approach offers environmental and economic benefits by leveraging naturally occurring winter precipitation as a renewable cooling resource, potentially reducing the hospital's reliance on conventional air conditioning and associated energy costs during peak summer demand periods.