Thermodynamics lecture 13
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Thermodynamics lecture 13

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Thermodynamics lecture 13 Thermodynamics lecture 13 Presentation Transcript

  • BITS Pilani Pilani CampusLecture 13 – FIRST LAW ANALYSIS FOR FIRST-A CONTROL VOLUME
  • CompressorA compressor receives 0.1 kg/s R-134a at 150 g kPa, -10oC and delivers it at 1000 kPa, 40oC. The power input is measured to be 3 kW. The compressor h h t t has heat transfer t air at 100 kP f to i t kPa coming in at 20oC and leaving at 25oC. How much is the mass flow rate of air? BITS Pilani, Pilani Campus
  • Mixing ChamberIn engineering applications, thesection where the mixingprocess takes place iscommonly referred to as a ymixing chamber The T elbow of an ordinary shower serves as the T-elbow mixing chamber for the hot- and the cold-water streams. BITS Pilani, Pilani Campus
  • Thermal Power Plant Equipments Involved with simple Thermal Power Plant • Boiler • Turbine • Condenser • Pump BITS Pilani, Pilani Campus
  • Thermal Power Plant BITS Pilani, Deemed to be University under Section 3 of UGC Act, 1956
  • Thermal Power Plant BITS Pilani, Deemed to be University under Section 3 of UGC Act, 1956
  • Thermal Power Plant BITS Pilani, Deemed to be University under Section 3 of UGC Act, 1956
  • Thermal Power Plant Boiler BITS Pilani, Deemed to be University under Section 3 of UGC Act, 1956
  • Multi component systems BITS Pilani, Deemed to be University under Section 3 of UGC Act, 1956
  • Multi component systems BITS Pilani, Deemed to be University under Section 3 of UGC Act, 1956
  • Multi component systemsA modern jet engine has a temperature aftercombustion of about 1500 K at 3200 kP as it enters b ti f b t t kPa tthe turbine section, see state 3 Fig. P.6.100. Thecompressor inlet is 80 kPa 260 K state 1 and outlet kPa,state 2 is 3300 kPa, 780 K; the turbine outlet state 4into the nozzle is 400 kPa, 900 K and nozzle exit ,state 5 at 80 kPa, 640 K. Neglect any heat transferand neglect kinetic energy except out of the nozzle.Find the compressor and turbine specific work termsand the nozzle exit velocity. BITS Pilani, Deemed to be University under Section 3 of UGC Act, 1956
  • Multi component systems BITS Pilani, Deemed to be University under Section 3 of UGC Act, 1956
  • RefrigeratorEquipments Involved with Refrigerator• Evaporator• Compressor• Condenser• Throttling Valve BITS Pilani, Pilani Campus
  • Refrigerator BITS Pilani, Pilani Campus
  • Refrigerator BITS Pilani, Pilani Campus
  • RefrigeratorA R-410a heat pump cycle (refrigerator) shown in Fig. P6.99 has a R-410a flow rate of 0.05 kg/s with 5 kW into the compressor. The following data are givenCalculate the heat transfer from the compressor, the heat transfer from the R-410a in the condenser and the heat transfer to the R-410a in the evaporator R 410a evaporator. BITS Pilani, Pilani Campus
  • Refrigerator BITS Pilani, Pilani Campus