Someone has suggested that the air standard otto cycle is more accurate if the two isentropic processes are replaced with polytropic processes with a polytropic exponent of n = 1.3. consider such a cycle when the compression ratio is 8, p 1 is 95 kpa, t1 is 15 c and the maximum cycle temperature is 1200 c. determine the heat transferred to and rejected from this cycle as well as the cycles thermal efficiency. use constant specific heats at room temperature. answers 835 kj/kg, 420 kj/kg, 49.8%.

water is used to store them because it would keep the radiation from getting out in the open and causing harm to the workers

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml