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.