The thermal expansion valve reacts directly to the ()
A、temperature in the space being cooled
B、liquid refrigerant pressure at the solenoid valve
C、pressure drop across the evaporator coils
D、refrigerant gas superheat at the coil outlet
A、temperature in the space being cooled
B、liquid refrigerant pressure at the solenoid valve
C、pressure drop across the evaporator coils
D、refrigerant gas superheat at the coil outlet
A、with the axis of the solenoid horizontal, sensing temperature of the box, and upstream of the thermal expansion valve B、upright, sensing temperature of the box, and upstream of the thermal expansion valve C、upright, sensing temperature of the box, and downstream of the thermal expansion valve D、upright, sensing heat of the tail coil, and upstream of the thermal expansion valve
A、thermal efficiency B、mechanical efficiency C、brake thermal efficiency D、volumetric efficiency
A、testing for the mechanical load and the thermal load B、inspecting thermal and mechanical condition of the engine C、inspecting each system and exhaust temperature D、testing for compress pressure and explosion pressure
A、the expansion ratio will decrease B、combustion will be slowed down C、thermal efficiency will decrease D、thermal efficiency will increase
A、Condenser and thermal expansion valve B、King and solenoid valves C、Compressor and thermal expansion valve D、Condenser and solenoid valve
A、the use of a poor quality oil B、the deterioration of its properties C、the formation of deposits D、the reduction in heat transfer ability
A、detect the temperature B、detect the pressure C、heat the refrigerant D、accelerate the refrigerant
A、amount of superheat in the vapor leaving the coil B、amount of superheat in the liquid C、temperature in the evaporator coils D、pressure in the evaporator coils
A、in the middle of evaporator coils B、near the evaporator coil outlet C、near the evaporator coil inlet D、on the bottom row of evaporator coils