Trench Heating Specifications

Our Trench Heating heat emissions are based on LTHW76.5 degrees C - Room temperature 18 degrees C - Water velocity 0.92m/s.

Other performance rates are as follows.

Variation of heat output with water and ambient temperatures

Mean Water Temperature, Degrees C
Ambient Temp	35	40	45	50	55	60	65	70	75	76.5	80	85	90	95	100	110	120
16	0.21	0.29	0.37	0.47	0.59	0.68	0.79	0.9	1.01	1.06	1.20	1.24	1.36	1.48	1.61	1.9	2.17
18	0.18	0.26	0.34	0.43	0.52	0.64	0.75	0.85	0.96	1.00	1.07	1.19	1.31	1.43	1.56	1.84	2.12
20	0.16	0.23	0.31	0.39	0.50	0.60	0.70	0.80	0.92	0.95	1.03	1.14	1.26	1.39	1.51	1.79	2.06
22	0.13	0.20	0.28	0.36	0.46	0.57	0.66	0.77	0.88	0.91	0.99	1.10	1.22	1.34	1.46	1.73	2.00
Correction Factor applied to outputs in above table.

Variation of heat output with water flow rate

Flow rate, kg/s
15mm Pipe	22mm Pipe	28mm Pipe	35mm Pipe	Correction Factor	Water Velocity, m/s
0.007	0.017	0.028	0.044	0.84	0.05
0.014	0.034	0.056	0.087	0.90	0.10
0.036	0.085	0.14	0.22	0.94	0.25
0.072	0.17	0.28	0.44	0.97	0.50
0.13	0.31	0.51	0.80	1.00	0.92
0.29	0.68	1.10	1.70	1.03	2.00
Correction Factor applied to outputs in first table. Below 0.05m/s there is a sharp reduction in performance due to the flow becoming laminar.

Diagrams

Type 01 | Type 02 | Type 03 | Type 04 | Type 05 | Type 06 |