Packaged Residential Active-Solar Space-Conditioning System. Appendix C. Honeywell Drainback Heating and Domestic Hot Water System Using a Vertical Wall Integrated Polymer Collector. Final Subcontract Report

摘要

This report documents Honeywell's design and design development process for a prototype, low-cost, reliable, packaged, active residential solar space and domestic hot water heating system. Honeywell engineers designed the solar space conditioning system (SPS) to include the innovative features of: an all-polymer vertical-wall, cavity-mounted collector array; applicance nature solar components; and a microprocessor-based solar controller. These features contributed to the low cost of the system because they resulted in a collector array that was easy and efficient to install and maintain. The system was installed and tested in two locations - one in Minneapolis, Minnesota and one in Bismarck, North Dakota. A third system was sent to the Solar Energy Research Institute for evaluation and testing. The SPS systems tested supplied 18 to 19 million Btu's to the loads over the one-year test period thereby meeting the $275/MMBtu cost performance goal set for the system. The available solar energy delivered to the loads of the system was measured at 16 to 18%, and storage losses accounted for only 5 to 8% of the collected solar energy. (ERA citation 11:050365)