Second Assignment Of Applied Thermodynamics

Applied Thermodynamics Second Assignment 1. Explain with a neat sketch working principle of vapour compression refrigeraration cycle and derive an expression for COP. 2. write short notes on 1) specific Humidity 2)Degree of Saturation 3) Relative Humidity 4) Wet Bulb Temperature 5) Psychrometer 3. Explain the following psychrometric processes a) Sensible heating or cooling b) Cooling with adiabatic humidification of air c) Mixing of air streams d) By- pass factor. 4. Explain with neat sketch summer air conditioning system for hot and dry weather. 5. Explain with a neat sketch summer A/C system for hot and humid weather. 6. Explain with a neat sketch winter A/C system for hot and humid weather. 7. Prove that the work done/kg of air in a compressor is given by W = RT1n/ (n-1) [(rp) (n-1)/n -1] , where rp = pressure ratio. 8.

Prove that heat rejected (per kg of air) with perfect inter cooling = [cp+ cv (γ -n)/(n-1)] (T2-T1)

9. Explain with a neat sketch working principle of vapour absorption refrigeraration cycle and derive an expression for COP. 10. Write short notes on Jet propulsion. ******************************* For regular updated information: http://tmanjunathasjcemysore.blogspot.com