Multi-thermal performance optimization of semi-circular heat pipes integrated with various solar collector profiles

Yunus, Mohammed; Alsoufi, Mohammad S.

doi:10.1186/s40807-020-00066-3

Sustainable Energy Research

Table 2 Experimental results of an HP integrated with flat, V-grooved, and V-trough

From: Multi-thermal performance optimization of semi-circular heat pipes integrated with various solar collector profiles

Run	Heat input watts	Inclination degree	Mass flow rate ml/min	Heat output (HO) watts	Thermal resistance (TR)°C/W	Thermal Efficiency (TE) %	HO watts	T R°C/W	TE %	HO watts	TR°C/W	TE %
1	1100	30	120	47.363	0.0503	14.4605	114.791	0.01922	34.578	43.208	0.04733	14.46
2	1100	30	135	47.98025	0.03575	15.2669	127.91	0.01337	37.85475	41.9873	0.03278	13.36
3	1100	30	150	56.288	0.0329	17.3936	136.799	0.00842	40.686	49.3834	0.02993	15.26
4	1100	45	120	51.39275	0.053375	15.16753	107.378	0.02243	32.5215	44.8955	0.050405	13.25
5	1100	45	135	52.74575	0.0449	15.99485	120.497	0.01613	35.79825	47.0248	0.04193	14.26
6	1100	45	150	61.78925	0.048125	18.14248	129.386	0.01073	38.6295	54.9011	0.045155	16.12
7	1100	60	120	49.424	0.0569	15.1946	114.86	0.02474	33.642	42.9036	0.05393	13.19
8	1100	60	135	51.51275	0.0545	16.04285	127.979	0.01799	36.91875	15.0496	0.05153	14.03
9	1100	60	150	61.292	0.0638	18.2114	136.868	0.01214	39.75	54.2532	0.06083	16.12
10	1550	30	120	71.1545	0.06965	16.6025	139.028	0.03388	31.5855	62.2294	0.065465	14.52
11	1550	30	135	72.7235	0.0551	17.0579	151.85	0.03973	34.248	64.2484	0.050915	15.07
12	1550	30	150	81.983	0.05225	18.8336	160.442	0.04468	36.465	72.9131	0.048065	16.75
13	1550	45	120	73.83425	0.072725	17.05978	126.2353	0.03067	28.881	65.0927	0.06854	15.04
14	1550	45	135	76.139	0.06425	17.5361	139.0572	0.03697	31.5435	66.9512	0.060065	15.42
15	1550	45	150	86.13425	0.067475	19.33273	147.6493	0.04237	33.7605	76.9886	0.06329	17.28
16	1550	60	120	70.5155	0.07625	16.8371	128.3375	0.02836	29.3535	61.7745	0.072065	14.75
17	1550	60	135	73.556	0.07385	17.33435	141.1595	0.03511	32.016	64.7113	0.069665	15.25
18	1550	60	150	84.287	0.08315	19.1519	149.7515	0.04096	34.233	75.3887	0.078965	17.13
19	2000	30	120	98.591	0.089	18.7445	194.45	0.08698	36.288	87.5745	0.0836	16.65
20	2000	30	135	101.1118	0.07445	18.8489	206.975	0.09283	38.33625	89.9062	0.06905	16.76
21	2000	30	150	111.323	0.0716	20.2736	215.27	0.09778	39.939	99.8270	0.0662	18.18
22	2000	45	120	99.92075	0.092075	18.95203	176.2775	0.08377	32.9355	88.8382	0.086675	16.85
23	2000	45	135	103.1773	0.0836	19.07735	188.8025	0.09007	34.98375	92.2127	0.0782	17.05
24	2000	45	150	114.1243	0.086825	20.52298	197.0975	0.09547	36.5865	102.5969	0.081425	18.45
25	2000	60	120	95.252	0.0956	18.4796	173	0.08146	32.76	84.4297	0.0902	16.38
26	2000	60	135	99.24425	0.0932	18.62585	185.525	0.08821	34.80825	88.1835	0.0878	16.55
27	2000	60	150	110.927	0.1025	20.0924	193.82	0.09406	36.411	99.6541	0.0971	18.05

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