A vehicle travelling at 100 km/h has air passing through its radiator at the rate of 100 kg mol per minute. The hot water from cooling the engine is circulated through the radiator at the rate of 10 L per minute, and as it passes through the radiator it is cooled from 78 °C to 32 °C. Assume the car is in good condition so the radiator has no leaks and the air and water do not contact. Given the heat capacity of the air is 1.0035 J·g-1·K-1, what is the temperature of the air exiting the radiator (assume air has a molecular weight of 29 g·mol-1).

Q: The minimum power needed by a water pump that increases the pressure of 4 kg/s from 100 kPa to 6 MPa…

A: Given data,  P=100 KPa  p=6 MPa = 6000 KPa  Mass flow rate is 4kg/s  Let's density of water is 1000…

Q: pump, u =7 motor = (0.70)(3 kW) = 2.1 kW pump electric he inlet diameter of the pump, Di = 50 mm and…

A:

Q: The pressure of 200 kg/s of water is to be increased by 4 MPa. The water enters through a…

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Q: the exhaust of a turboject engine the nozzle is operating steadily and heat loss is assumed…

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Q: Water with a specific heat of 1 BTU/lb m o F is pumped using a 1-hp jet pump from a well that is 20…

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Q: A fluid, contained in a horizontal cylinder fitted with a frictionless leak proof piston, is…

A: Given data: The diameter of the cylinder is D = 0.40 m. The time of the stirring process is t = 10…

Q: A steam turbine receives a steam flow of 1.25 kg/s and delivers 375 KW. The heat loss from the…

A: Given: Mass flow rate is 1.25 kg/s. The power output is 375 kW. The heat loss from the turbine is…

Q: At the exhaust of a turboject engine the nozzle is operating steadily and heat loss loss is assumed…

A: given data enthalpy at inlet = 3224 KJ/kg velocity at inlet = 278 km/hr inlet area = 0.21 m^2…

Q: An air compressor has a suction volume of 0.35 cubic meter/sec at 28 deg. C and 101.325 Kpa and…

A: Given, P1=101.325 Kpa=14.7 psiP1=700 Kpa=101.526 psiV=0.35 m3/sec=635.664  ft3/mink=1.41 Power for…

Q: Q2. A water tank shown in figure below open to the atmosphere is initially filled with water. The…

A: Given: Area of cross section of the tank (A)=1.2×0.8=0.96m2 Water level in the tank after…

Q: Determine the electrical power supplied to a boiler when the temperature of the entering water is 20…

A: The inlet and exit temperature respectively are 20 degree Celsius and 89 degree Celsius. Also, the…

Q: The diffuser in a jet engine is designed to decrease the kinetic energy of the air entering the…

A: P1= 100 kPaT1= 30∘C= 30+273 K= 303 KV1=350 m/sP2= 200 kPaT2= 90∘C= 90+273= 363 K   To find: Velocity…

Q: A fan delivers 400 m3 /min of air at 1 atm and 21 C when rotating at 600 rpm, with a head of 8 cm…

A: The volumetric flow rate of the air, V = 400 m3/min The pressure of the air, P = 1 atm The…

Q: Water is to be pumped from the bottom of a well 20 ft deep with a specific heat of 1 BTU/lbm F is…

A: Given Data1hP=764WTs=35°Fc=1 BTU/lbm°FQ=500 BTU/minh=20 ft=6.096m

Q: the cylinder of an air motor the compressed air has a specific internal energy of 500 kJ/kg at the…

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Q: At the exhaust of a turboject engine the nozzle is operating steadily and heat loss is assumed…

A:

Q: The fluid in the compressor of an aeronautic engine is compressed from P₁-10° Pa to P₂-10° Pa. If…

A:

Q: Water with a specific heat of 1 BTU/lbm°F is pumped using a 1-hp jet pump from a well that is 20 ft…

A: Given Data The specific heat of water is:C=1 BTU/lbm°F The heat lost is:Q=400 BTU/min The mass flow…

Q: The mass flow rate of compressed liquid water through a pump is 20 kg/s and the pressure is…

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Q: Air is flowing through a 23.36-cm diameter pipe with a velocity of 6523 m/s. If the temperature of…

A: It is very basic and conceptual numerical of thermodynamics. And used concept is mass flow rate…

Q: Solve the problem.   In a steady flow apparatus, 135 kJ of work is done by each kg of fluid. The…

A: GivenW=135kJ/kgv1=0.37 m3/kgP1=600kPaV1=16m/sz1=32mv2=0.62m3/kgP2=100kPaV2=270 m/sZ2=0 the discharge…

Q: the enthalpy of air is increased by 140 kJ/kg in a compressor. the rate of air flow is 16.42 kg/min.…

A: Given data: m˙=16.42 kg/min∆h=140 kJ/kgW˙in=48.2 kW Need to determine the the heat loss from the…

Q: Determine the electrical power supplied to a boiler when the temperature of the entering water is 20…

A: Consider the following diagram for the boiler system, the heat input is Ql and heat loss from the…

Q: At the exhaust of a turboject engine the nozzle is operating steadily and heat loss is assumed…

A:

Q: The compressor (10 hp) pulls in gas at 150 psi and 10.5 ft3/lbm velocity at the entrance is 2 ft/s,…

A: Given Data, P1 =Pressure at entrance of the compressor =150 Psi = 1034.214 KPa         (1Psi =6.895…

Q: A nozzle operates with steam entering at 700 kPa and 300 °C. The velocity at the inlet is 30 m/s. As…

A: P1=700 Kpa T1=300oc V1 = 30 m/s P2 (Kpa) 650 550 450 350 250   To find: A2/A1

Q: Determine the electrical power supplied to a boiler when the temperature of the entering water is 20…

A: Considering the steady state condition, evaluate the electrical power supplied to the boiler for the…

Q: Air enters a circular conduit at a pressure of 105 kPaa and leaves at an outlet pressure of 108…

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Q: Fluid X56-1 (density = 1300 kg/m3; M = 253 kg/kmol) is pumped at a rate of 4.58 m3/hour from a…

A: Since you have put a multi-part question which contain more than three sub-parts, thus we are able…

Q: A water pump is required to deliver 10 m2/min of water at a temperature of 27°C and the pressure is…

A: Answer: The power required to drive the pump is 46.6757 kW.

Q: steam turbine receives a steam flow of 1.35 kg/s and the power output is 500 kW. The heat loss from…

A:

Q: Water vapor enters a Lule with an input cross-sectional area of 0.02 m2 at a temperature of 1.8 MPa…

A: Given: A Nozzle,

Q: Water is to be pumped from the bottom of a well 20 ft deep and 160ft above the ground with a…

A: Given Data The specific heat of water is:C=1 BTU/lbm The heat lost is:Q=500 BTU/min The mass flow…

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.