Bell Coleman Cycle Derivation of COP, State Points & Volume Flow Rates Refrigeration [GATE, ESE]

In this video, we solve a conventional problem on the Reverse Brayton Cycle (Bell Coleman Cycle) used for refrigeration. Problem Statement: Dense air is used as refrigerant in Reverse Brayton or Bell Coleman or Joule cycle. Draw P-V and T-S diagrams for the cycle Derive the expression for COP in terms of pressure ratio Given: Temperatures at end of heat absorption and heat rejection are 0°C and 30°C Pressure ratio = 4 Pressure in cooler = 4 bar Determine: Temperature at all state points, volume flow rates at inlet to compressor and exit of turbine for 1 TR cooling capacity Concepts Covered: Reverse Brayton Cycle (Bell Coleman Cycle) P-V and T-S Diagrams COP Expression in terms of Pressure Ratio (rp) Isentropic Relations: T₂/T₁ = (P₂/P₁)^((γ-1)/γ) Refrigeration Effect and Work Input 1 TR = 3.5 kW (or 3.517 kW) Volume Flow Rate Calculation Ideal for GATE, ESE, and university Refrigeration & Air Conditioning courses. #ReverseBraytonCycle #BellColemanCycle #JouleCycle #Refrigeration #COPDerivation #PressureRatio #PVDiagram #TSDiagram #AirRefrigeration #IsentropicProcess #RefrigerationEffect #WorkInput #1TR #VolumeFlowRate #Thermodynamics #GATE #ESE #MechanicalEngineering #HVAC #RefrigerationAndAirConditioning