| 摘要 |
The present invention relates to a heat exchanger comprising at least one first loop adapted to trap energy from a source. The first loop contains a first refrigerant adapt ed to collect energy from a source. The invention also comprises at least one second loop with a second refrigerant adapted to interact with the first refrigerant and to transfer to a user a maximum quantity of the energy trapped by the first loop in the most efficient manner. The transfer of the trapped energy takes place in a transfer unit placed in the second loop. The transfer unit comprises an outer cylinder with an inlet and an outlet adapted to circulate the first refrigerant. An inner coil placed within the outer cylinder to contain the second refrigerant. The inner coil is provided with an inlet and outlet adapted to facilitate circulation of the second refrigerant . The first and the second refrigerants are moving within the transfer unit in a counter-flow direction to optimize the heat exchange between the first and second refrigerant. The first loop is placed into an earth or waste medium. The first refrigerant is R-410a and the second refrigerant is R-134a .
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