| 摘要 |
A heat pump arrangement 10 has a fluid circuit 12 which includes a heat exchanger 18, 20, an expander 22 downstream of the heat exchanger, a condenser 24 downstream from the expander, a first reservoir 32 downstream of the condenser and which in use can receive condenser fluid, a second reservoir 34 which in use can receive fluid from the first reservoir and convey the fluid to the heat exchanger. The arrangement further includes valve arrangements 36, 38, 40, 44 for controlling conveying of fluid from the first reservoir and the second reservoir, such that the valve arrangement permits selectively filling the second reservoir from the first reservoir, and the valve arrangement further permitting discharging the second reservoir at high pressure to the heat exchanger. In use, the heat exchanger is able to receive heat energy from a source and the condenser is able to reject heat energy to a sink at a lower temperature than the source. Flow of fluid around the circuit may be assisted by gravity, and the arrangement can be an organic Rankine cycle. |
