Troubleshooting Challenge 410A
bumity is 60.7%
Indoor dry bulb temp 80°F Indoor wet bulb...
Engineering, 15.04.2020 23:48 donnafranks2003
Troubleshooting Challenge 410A
bumity is 60.7%
Indoor dry bulb temp 80°F Indoor wet bulb temp 70°F
Refrigerant R410A
Outdoor ambient temp 89°F hot
Suction line temp 75°F
Liquid line temp 128ºF
Actual Condensing pressure 485 PSIG (131.1 °F)
Actual Evaporator pressure 144 PSIG (50.33 °F)
Diagnose the problem (Only one)
Low Evaporator Airflow (Low load)
Refrigerant Undercharged
Refrigerant Overcharged
High heat load (High Indoor Temperature or Leak in return duct)
Answers: 2
Another question on Engineering
Engineering, 04.07.2019 18:10
An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0
Answers: 3
Engineering, 04.07.2019 19:10
Estimate the change in specific internal energy au and specific enthalpy h from inlet to outlet for ethylene glycol (a liquid) flowing through each of the following devices: (a) a heat exchanger where the glycol temperature increases from 20 °c to 80 °c; (b) a pump operating at about 25 °c and increasing the glycol pressure from 100 kpa to 8 mpa.
Answers: 2
Engineering, 04.07.2019 19:10
Plan an experiment to measure the surface tension of a liquid similar to water. if necessary, review the ncfmf video surface tension for ideas. which method would be most suitable for use in an undergraduate laboratory? what experimental precision could be expected?
Answers: 2
Engineering, 04.07.2019 19:10
The air in an automobile tire with a volume of 0.015 m3 is at 32°c and 140 kpa gage. determine the amount of air that must be added to raise the pressure to the recommended value of 206 kpa gage. assume the atmospheric pressure to be 128 kpa and the temperature and the volume to remain constant.[r-0.287 kj/kgk]
Answers: 3
You know the right answer?
Questions
Computers and Technology, 13.07.2021 21:30
Mathematics, 13.07.2021 21:30
Mathematics, 13.07.2021 21:30
English, 13.07.2021 21:30
English, 13.07.2021 21:30
