Passive Solar, High-temperature Heat-store Wall, Air-to-air Heat Exchanger
Q: I would welcome comments on a new residential solar heating scheme documented at http://www.geocities.com/davidmdelaney/solar-ah-tm-he/ah-storage-wall... First paragraph: "The entirely passive residential solar heating system described here was conceived with particular attention to indoor air quality and earthquake hazard. The proposed heating system could provide all of the space heat needed by a well insulated house in a cold winter, even during a prolonged absence of electricity and other non-solar energy. The system, Fig. 1, consists of a solar air heater on the south wall, a high temperature heat store built into the south wall, and a passive air-to-air heat exchanger that separates the air of the heating system from the air of the living space."
A: ALL the heat? Show me the numbers for a couple of winters. Looks a lot like a "trumbal wall" or similarly worded. I helped install some in Boulder Colorado in the mid '60's. I only know of one guy that installed the equipment to get real numbers on performance, he said it was a wash. The one thing I do know is cold air does not move very well by itself. There are a bunch of bright people in the desert in New Mexico, ZOMEWORKS.
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