Electric heating trace designing - Wuxi Beyongd AOK Electric CO., LTD

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Electric heating trace designing

Tube heat loss q（the heat loss of tube per meter changing1℃) see the uppertable on page 4 ）

管径		Heat Insalution Thickness(mm/in)
G″	DN	10	20	25	35	50	60	75	100
G″	DN	1/2	3/4	1	1-1/2	2	2-1/2	3	4
1/2	15	8.86	6.73	5.74	4.59	3.94	3.61	3.28	2.95
3/4	20	10.34	7.87	6.56	5.09	4.43	3.94	3.61	3.28
1	25	12.31	9.02	7.55	5.91	4.92	4.43	4.10	3.61
1-1/4	32	14.77	10.83	8.70	6.73	5.58	4.92	4.59	3.94
1-1/2	40	17.06	12.30	10.01	7.55	6.23	5.58	4.92	4.27
2	50	19.69	14.11	11.32	8.53	7.05	6.07	5.42	4.76
2-1/2	65	23.13	16.57	13.13	9.68	7.88	6.89	6.07	5.25
3	80	27.56	19.36	15.26	11.16	9.03	7.88	6.89	5.74
3-1/2	95	31.01	21.82	17.06	12.31	10.01	8.53	7.55	6.23
4	100	34.45	24.12	18.87	13.62	10.83	9.19	8.21	6.73
4-1/2	115	37.90	26.41	20.51	14.77	11.81	10.01	8.86	7.22
5	130	41.83	29.04	22.48	16.08	12.80	10.83	9.52	7.71
6	150	49.22	33.96	26.25	18.54	14.60	12.30	10.66	8.70
8	200	63.16	43.15	33.14	23.13	18.21	15.09	13.13	10.66
10	250	77.76	52.99	40.52	28.05	21.82	18.05	15.59	12.47
12	300	91.70	62.18	47.58	32.81	25.43	21.00	17.88	14.27
14	350	100.40	68.08	51.84	35.60	27.56	23.46	19.36	15.26
16	400	114.2	77.27	58.73	40.36	31.01	25.43	21.82	17.06
18	450	128.1	86.46	65.79	44.95	34.45	28.22	24.12	18.87
20	500	141.9	95.81	72.68	49.55	37.90	31.01	26.41	20.51
24	600	169.6	114.2	86.46	58.73	44.95	37.08	31.01	24.12
Heat Loss of store tank surface q (heat loss of per sqm changing 1℃)
Store tank		74.8	49.7	37.7	25.1	18.6	14.9	12.6	9.3
Heat loss for surface is base on the 10% of designing margin ，Heating Quotiety 0.25

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