Pool-Heating Project Resolves Distance Issue

摘要

The university of arkansas/fayetteville in october commissioned an array of 48 solar hot water collectors on the roof of the Health, Physical Education and Recreation Building (HPER), to provide more than half of the energy used yearly to heat the indoor Olympic-sized swimming pool. The SunEarth EC40 modules, total-ing 1,920 square feet (189 square meters), harvest more than 2 million Btu per day to provide all of the heat for the 730,000-gallon pool during the summer and to preheat water in the winter, to 80°F (27°C). The university estimates the system will save about $4,000 annually in natural gas at today's prices, and $10,000 annually if gas prices re-turn to 2008 levels. Sun City Solar Commercial Energy of Springdale, Ark., designed and installed the system as a subcontractor for Energy Systems Group.