| 摘要 |
The invention relates to a method for the diagnostic analysis of a heating, ventilation and air-conditioning system (HVAC), comprising at least one compressor (Comp) connected to an air condenser (Cond) and designed for the circulation of a coolant fluid (Ff), an evaporator (Ev) connected to the air condenser (Cond) via a expansion device (Det) and permeated by a heat transfer fluid (Fc), wherein said air condenser comprises at least one ventilator (Vent). Said method permits the determination of enthalpies in the system at the compressor intake, the compressor discharge, the inlet to the expansion device and the outlet of the expansion device, together with the superheating of the system, using only three temperature measurements and the command function of the compressor. |
| 主权项 |
1. Diagnostic analysis method for a heating, ventilation and air-conditioning system, wherein said system comprises at least one compressor (Comp) connected to an air condenser (Cond) and designed for the circulation of a coolant fluid (Ff), an evaporator (Ev) connected to the air condenser (Cond) via an expansion device (Det) and permeated by a heat transfer fluid (Fc), wherein said air condenser comprises at least one ventilator (Vent), said method being characterized in that it involves:
the measurement of the following:
the coolant fluid temperature (T1) at the compressor intake,the coolant fluid temperature (T3) at the inlet of the expansion device,the coolant fluid temperature (T4) at the outlet of the expansion device, the determination or measurement of the discharge temperature (T2) of the compressor, and the determination of the following, on the basis of temperature measurements at the compressor intake, at the inlet of the expansion device and at the outlet of the expansion device, of the measured or estimated discharge temperature of the compressor, of the compressor command function (ucomp) and a thermodynamic module (M_TH):
enthalpies of the system at the compressor intake, the compressor discharge, at the inlet of the expansion device and at the outlet of the expansion device,the superheating of the system. |
