Solar Project Description for Colorado Sunworks: Single Family Residence, Longmont, Colorado

摘要

A passive solar energy system for both space heating and domestic hot water preheating is described. The passive space heating system consists of a drum wall and direct-gain system. Heat losses are reduced by a Beadwall movable insulation. The vertically stacked drums near the south wall form a drumwell chimney where heated air rises through ceiling vents above the drums into an open plenum area between the roof and the ceiling of the rooms. Additional vents from this plenum on the north side of the house provide a path for the warm air into the room. Earth berms on the north, east, and west sides of the house, a one-foot covering of earth on the roof, and an entry vestibule are used. Cooling is enhanced by night ventilation. The hot water system consists of two 30-gallon tanks painted black and positioned next to the south wall. The house is fully instrumented for the National Solar Data Network. Original cost estimates for provisioning and installation of the solar system are given. (ERA citation 06:031866)