Answered: The enthalpy of air is increased by…

The enthalpy of air is increased by 139.586 KJ/kg in a compressor. The rate of air flow is 16.42 kg/min. The power input is 48.2 KW. How much is the heat loss from the compressor in KW?

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter37: Air Distribution And Balance

Section: Chapter Questions

Problem 2RQ: The two ways that fresh air enters a structure are _______and_____.

See similar textbooks

Related questions

Q: Air flow steadily at the rate of 0.95 kg/s through air compressor, entering at 7.5 m/s speed, 95…

Q: Steam enters a nozzle steadily with a velocity of 131 m/s and enthalpy of 1,339 KJ/kg and leaves…

A: Given that: h1 = specific enthalpy of steam at inlet of nozzle = 1,339 kJ/kg V1 = velocity of steam…

Q: An open vent vertical cylindrical tank 2 m. in diameter and 4 m.

Q: A 2.5-m3 rigid tank initially contains air whose density is 1.18 kg/m3. The tank is connected to a…

A: Option A is correct. m = 25.4678 lb

Q: Q5: A-Steam enters a turbine with a velocity of 35 m/s and specific enthalpy 2990 kJ/kg. the steam…

Q: In a steady flow apparatus, 135 kJ of work is done by each kg of fluid. The mass density, pressure…

Q: The mass flow rate of the gas in a gas turbine is 40 kg/s. The specific enthalpy and velocity in the…

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: In a steady flow system, 50 kJ of work is done per kg of fluid, the values of specific volume…

A: We have, Wsf=50 kJ/kg The given inlet conditions are, V1=0.4 m3/kg, p1=600 kPaC1=15 m/s

Q: Seventy kilojoules of work is done by each kilogram of fluid passing through an apparatus under…

A: GIVEN DATA -

Q: Steam flows through an adiabatic turbine, entering at 1000 psia, 1100°F, and 300 ft/sec and exiting…

A: State 1: P1= 1000 psiaT1= 1100∘FV1= 300 ft/sec State 2: P2= 10 psiaT2= 300∘FV2= 600 ft/sec Power…

Q: In a gas turbine , the flow rate of air is 4 kg/sec . The velocity and enthalpy of air at the…

Q: Air flows steadily at the rate of 0.5 kg/s through an air compressor, entering at 7 m/s speed, 100…

Q: Q5: A-Steam enters a turbine with a velocity of 35 m/s and specific enthalpy 2990 kJ/kg . the steam…

Q: The shaft power of a turbine operating with 80 percent efficiency is 450 kW. If the mass flow rate…

A: Given data: η=80%Pact=450 kWm˙=625 kg/sg=9.81 m/s2 Need to determine the amount of head removed from…

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

Q: Steam enters a turbine at 1380 kPa with internal energy of 2705 kJ/kg and specific volume of 0.1655…

A: Given data: Initial pressure, P1=1380kPaInitial internal energy, u1=2705kJkgInitial specific volume,…

Q: hp compressor in a facility that-75 operates at full load for 2500 h a year is powered by an…

A: Given data: motor efficiency = 93% = 0.93 No. of operating hours = 2500 h Motor power = 75 Hp Unit…

Q: 6. Air flows steadily at the rate of 0.5 kg/s through an air compressor, entering at 7 m/s speed,…

Q: A reciprocating compressor draws in 500 cubic feet per minute of air whose density is 0.079 lb/ft^3…

A: Given data as per question v=500 ft3minp1=15 psiap2=80 psiaQ=13 BTUlbΔu=33.8 Btulbρ1=0.079…

Q: Steam flows into a turbine at the rate of 10 kg/s and 10 KW of heat are lost from the turbine.…

A: Given:mass flow rate of steam, m=10 Kg/sHeat lost, Ql=10 KWh1=2739 KJ/Kgh2=2300.5 KJ/Kg

Q: The water vapor that is 3.00 MPa and 540°C goes through a pipe with a 0.40 m^2 cross sectional area…

Q: A desktop computer is to be cooled by a fan whose flow rate is 0.40 m3/min. Determine the mass flow…

Q: 2. Water is pumped from a lake to a storage tank 20 m above at a rate of 95 L/s while consuming 22.3…

A: Given data: (a) The power required to pump the water can be calculated as Substitute the known…

Q: The enthalpy of air is increased by 139.586 KJ/kg in a compressor. The rate of air flow is 16.42…

A: Given data, h2-h1 = 139.586 kJ/kg m= 16.42 kg/min Power input = 48.2 kW

Q: Air flows steadily at the rate of 0.5 kg/s through an air compressor, entering at 7m/s speed, 100…

Q: compressor draws in 500 cubic feet per minute of air whose density is 0.079 lb/cu ft and discharges…

Q: An automobile moving through the air causes the air velocity (measured with respect to the car) to…

Q: The mass flow rate of the gas in a gas turbine is 40kg/s. The specific enthalpy and velocity in the…

Q: In a steady flow apparatus, a fluid enters with a specific volume of 0.40m³/kg, a pressure of 550…

Q: hydraulic turbine is used to generate power by using water in a dam. The elevation difference…

Q: Air flows steadily at the rate of 0.5 kg/s through an compressor, entering at 7 m/s speed, 100 kPa…

Q: Q5: A-Steam enters a turbine with a velocity of 35 m/s and specific enthalpy 2990 kJ/kg. the steam…

Q: During a steady flow process, the pressure of the working substance drops from 200 to 20 psia, the…

Q: In a steady flow apparatus, 250 kJ of work is done by each kg of the fluid. The specific volume of…

A: Heat added to the system, Q = -237.6 KJ/kg.

Q: 3. Air flows steadily at the rate of 0.5 kg/s through an compressor, entering at 7 m/s speed, 100…

A: Answer: The compressor work required is 122.006 kW.

Q: Air flows steadily at the rate of 0.5 kg/s through an air compressor, entering at 7 m/s speed, 100…

Q: 2. An air-conditioning system requires air flow at the main supply duct at a rate of 180 m³/min. The…

Q: A glycerin pump is powered by a 5-kW electric motor. The pressure differential between the outlet…

A: Given: The power of electric motor is P=5 kW. The pressure difference between the outlet and the…

Q: Air enters a gas turbine systenm with a velocity of 105 m/s and has a specific volume of 0.8m/kg.…

A: Air inlet velocity, V1=105 m/s Specific volume of air at inlet, v1=0.8 m3/kg Inlet area of gas…

Q: Air enters the cylinder of a 4-stroke gasoline engine at 33°C and 101.2 kPa. Engine clearance is…

A: Given data: - The initial temperature is T1 = 33 oC. The initial pressure is P1 = 101.2 kPa. The…

Q: 3. The pump of a water distribution system is powered by a 15 kW electric motor whose efficiency is…

A: As per given Efficiency of electric motor=90% Pump power =15kw Volume =50L P2=300kpa P1=100kpa We…

Q: Q5: A-Steam enters a turbine with a velocity of 47 m/s and specific enthalpy 2690 kJ/kg. the steam…

Q: Water is pumped from a lake to a storage tank 15 m above at a rate of 70 L/s while consuming 15.4 kW…

A: Given data water tank elevation (h) = 15 m density of water (ρ) =1000 kg/m3 volume flow rate (v˙)…

Q: A hydraulic turbine is used to generate power by using water in a dam. The elevation difference…

Q: Air flows steadily at the rate of 0.5 kg/s through an air compressor, entering at 7m/s speed, 100…

Q: 2. Air whose density is 0.078 enters the duct of an air-conditioning system at a volume flow rate of…

A: Given data as per question Density of air =0.078 lbm/ft3 Volume flow rate =450 ft3/min Diameter of…

Q: In a steady flow apparatus, 135 KJ of work is done by each kg of fluid. The specific volume of the…

Question

The enthalpy of air is increased by 139.586 KJ/kg in a compressor. The rate of air flow is 16.42 kg/min. The power input is 48.2 KW. How much is the heat loss from the compressor in KW?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

An air compressor absorbs 1000 kg of air per hour at a pressure of 100 kPa and 500 kPait presses on the pressure. Specific volume of air at compressor Inlet 0.8 m3/ kg, at Exit0.2 m3/ kg dir. The internal energy of the air at the outlet is 100 kJ/kg more than at the inlet.60 000 kJ/h heat transfer occurs from the compressor to the air. Kinetic and potential energyfind the power needed to operate the compressor, neglecting its changes.
The enthalpy of air is increased by 139.586 BT/lb in a compressor. The rate of air flow is 16.42 lb/min. The work done tot he compressor is 58.2 hp. What value most nearly equals the heat loss from the compressor in KW?
An air compressor handles 8.5 m3/min of air with a density of 1.26 kg/m3 and a pressure of 101 KPaa and discharges at 564 KPaa with a density of 4.86 kg/m3. The changes in specific internal energy across the compressor is 82 KJ/kg and the heat loss by cooling is 24 KJ/kg. Neglecting changes in kinetic energy and potential energy, find the work in KW. 28.889 KW 26.186 KW ) 24.876 KW 31.045 KW
The enthalpy of air is increased by 139.586 KJ/kg in a compressor. The rate of air flow is 16.42 kg/min. The power input is 48.2 KW. Determine the heat flow in KW. pls include in the equation what is energy in and energy out
A 12hp motor is used to drive an air compressor. The compressor efficiency is 70%. Find the mass of air in kg needed per minute if air is available at 30C. The pressure compresses to 8 times its original pressure. Ans: 1.52
A 48 HP motor is used to drive an air compressor. The compressor efficiency is 80 % Determine the compressor work in kW Answer in whole number
Q2: In an evaporator of a refrigerator, the refrigerant evaporates at (-20 °C) over the tubes. Water flowing inside the tubes enter at (15 °C) and is cooled to (5 °C). The cooling capacity is (5 kW). Determine the cooling rate if the water flow is increased by 25% keeping the inlet temperature to be the same.
The mass flow rate of the gas in a gas turbine is 40 kg/s. The specific enthalpy and velocity in the inlet are 1300 kJ/kg and 160 m/s respectively while the outlet are 350 kJ/kg and 50 m/s respectively. Calculate for the work of the turbine if there is a heat loss of 1000 kW. (kW)
Determine the power produced by this turbine in kW.
Q1. During a steady flow process in an open system the velocity of the fluid is increase from100 to 600 m/s, the specific volume is decreased from 5 to 2 m³/kg, the pressure is increased from 1 MN/m² to 2 MN/m². And the internal energy is increased by 120 kJ/kg. Find the change of enthalpy, and the work done, if the process is an adiabatic process and no change of potential energy. 01 03 ka foir 350 IN/m2 ond 35 °C rogoiuog hoot ot gonatont lumo untilit ita procouro
Water is pumped from a lake to a large storage tank that is onthe top open to the atmosphere. The water surface in the tank is 20 m above the water surface of the lake. The volume flow is 50 litres/s and 15 kW of electrical power is used for it. Disregard losses in flow energy due to friction and from changes in the kinetic energy of the water. Use ρ = 997 kg/m3as mass density for liquid water.a) Calculate the total efficiency of the pump-motor unit.b) Calculate the pressure difference between inlet out outlet ofthe pump needed to pump the water up to the idea.
A pump is used to raise the pressure of water from 0 psig to 55 psia. How much power (in kW) will be required to pump 1.5ft3/s of water? What is the effect of the water temperature on the pump power that is required? a. Sketch the problem. b.Draw lines identifying the control volume, or control mass. c.Identify the states with numbers, letters, or descriptions such as “in” and “out”. d.Write down the knowns and unknowns. e.Identify what is being asked for. f.State all assumptions.