International Journal of Nuclear Energy / 2013 / Article / Tab 8

Research Article

A Small-Sized HTGR System Design for Multiple Heat Applications for Developing Countries

Table 8

Major specifications of steam generator.


Thermal duty (MW)50
Primary helium
 Temperature (inlet/outlet) (°C)750/325
 Flow rate (kg/s)22.4
 Temperature (inlet/outlet) (°C)200/538
 Pressure (inlet/outlet) (MPa)13.3/12.5
 Flow rate (kg/s)19.3
Heat exchanger tube
 MaterialEvaporator: 2.25Cr-1Mo steel
Super heater: Alloy 800H
 Outer diameter (mm)31.8
 Thickness (mm)3.5
 Number of tubes36
Helical tube bundle
 Number of layers8
 Outer diameter (m)1.4
 Inner diameter (m)0.7
 Effective heat transfer area (m2)260