cold water V 2 kg/s, 20°c H.T. area is 10 m² process pluid 3.5 kg/s > 70°C G, process = 2500 J/kqK sluid Grewater =G180 k]/ugk ouerall H. T coeff. is 1500 W0K m²K i) the H. T. rote ?
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![cold water
V 2 kg/s, 20°c
process pluid
H.T. area is 10 m²
:) the H. T. nete ?
3.5 kg/s
->
70 °C
G, procesa = 2500 J/kgK
luid
Cpevoter =G180 k]/ugk
overall H. T coeff. is 1800 W/m K
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- Q2(i) how the pollution is caused by the solid industrial waste, industrial influent and industrial wastes gases?When pumping water (Q = 10 L/s, η = 60%, 10 kW shaft power), water temperature in pump rises roughly byThermodynamics How does fluid friction and heat loss affect the efficiency of plant and explain the process atleast 150 words?
- What would be the technical classifi cation of the followingturbomachines: (a) a household fan, (b) a windmill, (c) anaircraft propeller, (d ) a fuel pump in a car, (e) an eductor,(f ) a fl uid-coupling transmission, and (g) a power plantsteam turbine?please written solution by hand and how can com h6 and s6 when T turbine inlet = 130 C , P heat exchanger = 20 bar , P condenser = 5 bar , Tw . cond out = 25 C Tw cond in = 17.5 C efficiencies compressor = 67.5 efficiencies turbine = 78 m. refrig =0.4 kg/sA-3.2. Suppose a large tank of water with a temperature of just over 0 Cwe put in a 100 g ice cube. When the ice melts, it absorbs 33 kJ of heat. What is theentropy change of a) (ice) system, b) environment (water tank)?
- 1.1 Determine the electrical power supplied to a boiler when the temperature of the enteringwater is 20 C and the exiting temperature is 89 C. The flow of.the pressured water is 2 Kg/s. There is anegligible pressure drop through this boiler and it operates at a constant pressure of 3 bars. The specificheat is c = 4,370 J/(Kg K). There is a 1.5(105) W rate of heat loss from the boiler during this process to asurrounding at 293.2 k. Consider steady state conditions.1.2 Calculate the total rate of entropy production in Problem 1.1.1.3 Calculate the total rate of exergy destruction (W) in Problem 1.1. The dead statetemperature is 293.2 K and pressure is 1 bar.1.4 Calculate the mass flowrate of fuel (natural gas, CH4) required to heat the water flow to theconditions of problem 1.1 if the electrical heating device is replaced with a gas fired boiler. The highheating value (HHV) of the fuel is 50.02 MJ/kg.1.5 Calculate the exergy destroyed in the process described by problem 1.4. The exergy…1.1 Determine the electrical power supplied to a boiler when the temperature of the enteringwater is 20 C and the exiting temperature is 89 C. The flow of.the pressured water is 2 Kg/s. There is anegligible pressure drop through this boiler and it operates at a constant pressure of 3 bars. The specificheat is c = 4,370 J/(Kg K). There is a 1.5(105) W rate of heat loss from the boiler during this process to asurrounding at 293.2 k. Consider steady state conditions.1.2 Calculate the total rate of entropy production in Problem 1.1.1.3 Calculate the total rate of exergy destruction (W) in Problem 1.1. The dead statetemperature is 293.2 K and pressure is 1 bar.1.4 Calculate the mass flowrate of fuel (natural gas, CH4) required to heat the water flow to theconditions of problem 1.1 if the electrical heating device is replaced with a gas fired boiler. The highheating value (HHV) of the fuel is 50.02 MJ/kg.1.5 Calculate the exergy destroyed in the process described by problem 1.4. The exergy…With diagram .In a steam jet refrigeration system, the evaporator is maintained at 6°C. The chilled water leaves at the same temperature and warms to 11°C as it absorbs the load. Make-up water in available at 25°C. For a capacity of 50 tons, determine the volume of a vapor removed. Ans. (a) 8.381 kg/s, (b) 10.07 m3 /s
- An office to be air conditioned for 50 staff when the outdoor conditions are 30°cDBT and 75% RH if the quantity of air supplied is 0.4m3/min/per find i) Capacity of cooling coil ii) capacity of heating coil iii) amount of water vapourremoved per hour. Assume that required air inlet conditions are 20°c DBT and 60% RH air is conditioned first by cooling and dehumidifying and by heating. Ifthe heating coil surface temperature is 25°c, find the bye pass factor of the heating coil.SHOW COMPLETE SOLUTION THANK U 1. Steam expands steadily at a constant temperature. The flow rate is 13.6 kg/min with an inlet state of wet steam (water) at 80% quality to a final state of 700C and 2.5 MPa. The change of kinetic energy across the device is 3.5 kJ/kg, and the heat added is 21.81 kW. Determine (a) the enthalpy of conditions 1 &2, (b) the heat transfer in kJ/kg, (c) the work, and (d) the system power.Pls. Answer thank you! The change of enthalpy of air in a cooling tower is 35 Btu/lb and the mass flow of air is 453.17 lb/min. Water enters the tower at the rate of 50 gpm and 115 °F. Determine the exit temperature.