Complete Lesson with Eight LEDs with 74HC595. This code uses a shift register to use a single data pin to light up 8 LEDs. The code uses the command "bitSet" to set the light pattern. What is the value of the variable leds when the value of currentLED is 2? Hint: You can use Serial. begin(9600) in the setup and Serial. println(leds) in the loop to examine this value.

An ideal vapor-compression refrigeration cycle is employed to maintain a building temperature of 23°c when the outside temperature is 37°c. the cycle operates at steady state using ammonia as the working fluid. the mass flow rate of the refrigerant is 15 kg/min. the refrigerant enters the compressor at 1.5 bar and 10 °c. the condenser pressure is 20 bar and the temperature at the condenser exit is 45 °c. determine (a) the compressor power in kw. (b) the refrigeration capacity in tons. (c) the coefficient of performance. d) the maximum theoretical coefficient of performance.