Problem 2 The following data refers to an ideal Stirling cycle with ideal regenerator. Pressure, temperature and volume of the working medium at the beginning of the isothermal compression are 100 kPa, 30°C and 0.05 m³ respectively. The clearance volume of the cycle is 1/10 of the initial volume. The maximum temperature attained in the cycle is 700°C. Draw P-V and T-S diagrams. Calculate (i) The net work (ii) Thermal efficiency with 100% regenerator efficiency (iii) Thermal efficiency without the regenerator. nhoum in figure below

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Units and Dimensions

Dimensions are the basic concepts of the measurement of quantities. Units are the means of expressing the dimensions. For instance, an area has a dimension of L2 and a unit of m2.