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