Research Article
Effects of Ambient Parameters on the Performance of a Direct-Expansion Solar-Assisted Heat Pump with Bare Plate Evaporators for Space Heating
Table 1
Experimental data.
| Test number | (°C) | RH (%) | I (W·m−2) | (°C) | (°C) | (kPa) | (kPa) | (W) | (W) | (W) | COP |
| 1 | 5 | 50 | 300 | 3.1 | 37.4 | 415.0 | 1387.5 | 661 | 920 | 1416 | 2.12 | 2 | 10 | 50 | 300 | 7.4 | 42.1 | 426.5 | 1533.3 | 709 | 1005 | 1537 | 2.18 | 3 | 15 | 50 | 500 | 16.8 | 52.1 | 590.0 | 1954.4 | 877 | 1415 | 2073 | 2.36 | 4 | 15 | 50 | 300 | 12.0 | 46.9 | 473.9 | 1736.9 | 780 | 1181 | 1766 | 2.26 | 5 | 15 | 50 | 200 | 11.0 | 44.2 | 444.1 | 1633.7 | 742 | 1028 | 1585 | 2.14 | 6 | 15 | 50 | 100 | 10.0 | 41.7 | 404.2 | 1525.9 | 707 | 922 | 1452 | 2.09 | 7 | 15 | 50 | 0 | 7.6 | 37.4 | 392.0 | 1358.3 | 632 | 835 | 1309 | 2.07 | 8 | 5 | 50 | 0 | 0.0 | 29.6 | 282.9 | 1118.1 | 559 | 556 | 975 | 1.75 | 9 | 5 | 70 | 0 | 0.1 | 30.2 | 298.3 | 1109.9 | 562 | 577 | 998 | 1.78 | 10 | 5 | 90 | 0 | 2.6 | 30.4 | 303.5 | 1120.1 | 577 | 779 | 1191 | 2.07 |
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