| 摘要 |
A double glazing assembly for a heat extraction system comprises a pair of transparent panels 4,5 and 7,8 in parallel spaced-apart relationship which define a cavity 20 between them. A pair of ports 13 and 14 with substantial spacing permit air entering one of the ports 13 to travel through the cavity 20 and exit from the other port 14. The assembly is installed in a conservatory 1 attached to one wall 3 of a building 2. The conservatory has a solar aspect and the air inside the conservatory is therefore heated by the sun. Heat is extracted from this air by causing air from the conservatory to flow past the evaporator coil 9 of a heat pump and then into the cavity 20 via the port 13. The air travels through the cavity and emerges back into the conservatory via the port 14. It is shown that in addition to permitting heat to be extracted from the conservatory by the coil 9 one can reduce heat losses from the interior of the conservatory to the outside atmosphere. |
