Solar energy system performance evaluation: seasonal report for IBM System 3, Glendo, Wyoming

The IBM System 3 Solar Energy System was designed by the Federal Systems Division of IBM in Huntsville, Alabama to provide 46% of the space heating and 80% of the domestic hot water (DHW) for a 1078 square foot retrofit of an existing building used as a residence at the Glendo Reservoir State Park Ranger Station. The system consists of fourteen Sunworks Model LA1001A flat plate liquid collectors (294 square feet), a 1000 gallon hot water storage tank, a 65 gallon electric domestic hot water tank, pumps, heat exchangers, controls, and associated plumbing. Water is the heat transfer medium for this closed volume, passive drain down system. A gas furnace is used for auxiliary space heating energy. The system which became operational in October 1978 has five modes of operation. Performance data for the year of 1979 are presented and assessed