Thermal Analysis and Structural Optimization of High-Efficiency Fuel Submersible Hot Water Machine

Table 6

Convection surface structure parameter table.

Project name	Code name	Unit	Value
Threaded pipe flue gas flow area	Fr	m^2	0.011
Heat transfer area of threaded tube	Hr	m^2	1.038
Heat transfer area of smoke chamber	Hs	m^2	0.372
Total flue gas circulation area	Fd	m^2	0.011
Total heat transfer area	Hd	m^2	1.410