Mathematical Analysis of Optimal Operating Conditions in Heating Systems

Table 1

Experimental equipment and its parameters.

Number	Equipment Name	Specifications and main parameters	Quantity	Remarks
1	Radiator	Cast-iron ellipsoidal four-column 760	10 pieces
2	Electric heating tube	6kW	3	Resistance-type
3	High water tank	Length-0.75 m, width-0.45 m, and height-0.49 m	1
4	Circulating water pump	Q=3.0m^3/h; H=35-12m; N=0.37kW	1
5	Frequency converter	The power is 5.5 kW, the input voltage is was 380 V, and the output voltage is 0–380 V
6	Pressure gauge	The measuring range is 0–0.6 MPa and the accuracy is 0.005 MPa