Question 183Refrigeration/AC - Assistant Engineer70% to pass
Besides the evaporator pressure, the thermal expansion valve reacts directly to changes in what parameter?
AI Explanation
The correct answer is C) temperature of the evaporator coil outlet.
The thermal expansion valve reacts directly to changes in the temperature of the refrigerant leaving the evaporator coil. As the temperature of the refrigerant increases, the thermal expansion valve opens more to allow more refrigerant flow, which helps maintain the desired temperature in the space being cooled. The other options are not directly related to the operation of the thermal expansion valve.
Related Questions
#181 A typical shipboard domestic multi-box refrigeration system operates with one compressor and condenser. What is the purpose of the sensing line connected to the thermal bulb at the evaporator coil outlet? #182 Which of the following illustrated expansion valves is designed to maintain a constant evaporator pressure rather than a constant evaporator superheat? Illustration GS-RA-24 #184 Constant superheat is maintained at the evaporator coil outlet of a refrigeration system or unit by the action of what device? #185 Concerning the proper installation of the sensing bulb of a thermal expansion valve that is attached to the evaporator tail coil on a horizontal run, what statement is true? #186 In the multi-evaporator refrigeration system shown in the illustration, what is the proper name for the valve labeled "29"? Illustration GS-RA-12