Impact of bumpers position variation on heat exchanger performance: an experimental and predictive analysis using an artificial neural network

Journal of Engineering and Applied Science

Table 1 Performance of ANN prediction with and without bumpers

Specifications	Output prediction	All	Train	Validation	Test
130–200 cm	Q Nu f ∈	0.00032	0.000	0.00019	0.00012
70–130 cm	Q Nu f ∈	0.00025	0.00029	0.0001	0.000
10–70 cm	Q Nu f ∈	0.003	0.00367	0.00027	0.00023
Smooth pipe	Q Nu f ∈	0.00081	0.00099	0.00022	0.00019