Thermostructural Analysis of Plate-Type Heat Exchanger Prototypes Considering Weld Properties

Table 5

Analysis results of 3 kW class PHE prototype.

	Maximum local stress			Yield stress (MPa)			Percentage exceeding the yield stress (%)
	Stress (MPa)	Location	Temperature (°C)	Parent	Weld	HAZ	Parent	Weld	HAZ
Elastic analysis	272.33	Weld	746.00	237.88	260.24		14.48	4.64
Elastic-plastic analysis
Weld
Using parent material properties	242.60	Weld	750.00	237.63			2.09
Using weld material properties	266.19	Weld	740.70	260.61				2.14
HAZ
Using parent material properties	239.17	HAZ				237.68	0.63
Using weld material properties	235.47	HAZ	749.22			228.65			2.98