In: Mechanical Engineering
A well-insulated expansion/throttle valve is designed to operate with refrigerant R134a. It receives a liquid-gas mixture with a quality of 0.1 and a pressure of 400 kPa. The refrigerant leaves with a pressure of 100 kPa. Find the temperature (in Celsius) and the specific volume (m3/kg) at the exit of the valve.
steps:-
At first we arrange PH diagram. throttling is isoenthepic
process so, it is occure a vertical line on PH diagram initial
point of throatling is denote by point 1 and final point denote by
point 2. by locating the point on a chart we find temperature of
endpoint and from here we find volume of saturation condition
finally we use thermodynamics property to get volume of
endpoint.concept:- this question required basic
ability to read chat and basic thermodynamics relation knowledge
enable to find unknown.