0.2 A condenser condenses 2700kg steam per hour while air leaks into It at 2.2kg/hr. The condensate and air suction spout temperatures are 32.9°C. The barometer and vacuum gauge readings are 765mmHg and 690mmHg respectively. The condenser uses 125.55M9 of cooling water per hour to condense steam with a dryness fraction of 0.86 and the air pump has a volumetric efficiency of 82.5%. Take R = 0.287kJ/kgK for air and calculate: %3D 6.2.1 the temperature rise of the cooling water (10.85°C); 6.2.2 the air pump capacity in m2/min (0.78m3³/min).

0.2 A condenser condenses 2700kg steam per hour while air leaks into It at 2.2kg/hr. The condensate and air suction spout temperatures are 32.9°C. The barometer and vacuum gauge readings are 765mmHg and 690mmHg respectively. The condenser uses 125.55M9 of cooling water per hour to condense steam with a dryness fraction of 0.86 and the air pump has a volumetric efficiency of 82.5%. Take R = 0.287kJ/kgK for air and calculate: %3D 6.2.1 the temperature rise of the cooling water (10.85°C); 6.2.2 the air pump capacity in m2/min (0.78m3³/min).

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: Moist air enters an air-conditioning system as shown in the figure below at T1 = 28°C, P1 = 80% and…

Q: Fluid enters a condenser at a rate of 35 kg/min with a specific enthalpy of 2200 kJ/kg and leaves…

Q: The condensing and evaporating pressures in a 10 TR R-22 refrigeration system are 11.82 bar and 1.64…

Q: The mass flow rate of the refrigerant in a Single Stage Vapor Compression (SSVC) refrigeration…

A: given; mass flow of refrigerant(m)=0.015kg/sevaporating(T1)=-200c =273-20…

Q: Refrigerant-134a enters the condenser of a steady-flow Carnot refrigerator as a saturated vapor at…

Q: Steam enters a throttling calorimeter at a pressure of 1.03 MPa (hg = 2779.25 kJ/kg, hf = 768.55…

Q: A refrigeration system using refrigerant 22 is to have a refrigerating capacity of 80 kW. The cycle…

A: Refrigeration is basically cooling a particular space and maintaining the temperature lower than the…

Q: Q29. Steam enters the condenser of a power plant at 3 psia and a quality of 95% with a ratio of mass…

Q: The mass flow rate of the refrigerant in a Single Stage Vapor Compression (SSVC) refrigeration…

Q: How can I calculate the pressure 2 of a vapor compression refrigeration system, if in state one my…

A: Given: P1 = 0.1012 MPa = 101.2 kPa x=90% = 0.9 To find: Pressure at state 2

Concept explainers

Heat Exchangers

Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.

Heat Exchanger

The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.

Question

0.2 A condenser condenses 2700kg steam per hour while air leaks into
It at 2.2kg/hr. The condensate and air suction spout temperatures
are 32.9°C. The barometer and vacuum gauge readings are
765mmHg and 690mmHg respectively. The condenser uses
125.55M9 of cooling water per hour to condense steam with a
dryness fraction of 0.86 and the air pump has a volumetric efficiency
of 82.5%. Take R = 0.287kJ/kgK for air and calculate:
%3D
6.2.1 the temperature rise of the cooling water (10.85°C);
6.2.2 the air pump capacity in m2/min (0.78m3³/min).

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

An ammonia refrigeration compressor takes its suction from the evaporator, at a temperature of-200F and a quality of 95%. The compressor discharges at a pressure of 100 psi, liquid ammonia leaves the condenser at 500F.(a)Determine the heat absorbed by the evaporator in kJ/kg. (b)Determine the heat rejected to the condenser in kJ/kg. (c)Determine the COP. (d)Determine the horsepower per ton of refrigeration. (e)Determine the quality of refrigerant upon entering to the evaporator
Steam is delivered to turbine at 5.4 MPa and 600 degree C. Before condensation at 31 degree C, steam is extracted for feed water heating at 0.6 MPa. The turbine exhaust is 60 degree C. the required values of some state point properties are tabulated below. 7. Determine the quality of steam at the condenser inlet.
A single effect evaporator is used to concentrate 10 000 kg / hr of tomato juice from 5% total solids to 30% total solids. The juice enters the evaporator at 15 ° C. The evaporator is operated on Steam (80% quality) at 143.27 kPa. The vacuum in the evaporator allows the juice to boil at 75 ° C. The specific heat of the dilute material is 4.1 kJ / (kg ° C) and the concentrate product is 3.1 kJ / (kg ° C). Count it (a) Steam demand rate =kg / hour. b. Steam economy when condensate temperature is released at 75 ° C. = (kg of water evaporated / kg of steam)
In a CO2 refrigerating plant, the specific enthalpy of the refrigerant as it leaves in the condenser is 135 kJ/kg and as it leaves the evaporator it is 320 kJ/kg. If the mass flow of the refrigerant is 5 kg/min, calculate the refrigerating effect per hour.
In the evaporator of an air conditioning system, air flows over finned tubes through with the refrigerant R134a flows. air out refrigerant in refrigerant out air in The mass flow rate of the air is 0.75 kg/s and the air enters at 40°C and pressure 1.04 bar. The air leaves the evaporator at 25°C and 1.01 bar. The refrigerant enters the evaporator with a quality of 0.2 and a temperature of 12°C. The refrigerant exits as saturated vapor. Obtain the properties of air and R134a using the fluids "Air" and "R134a" in EES. What is the volumetric flow rate of the air entering the heat exchanger (m^3/s)? Determine the rate of heat transfer from the air to the refrigerant (W). Determine the mass flow rate of the refrigerant (kg/s).
A surface condenser serving a 50,000 kW steam turbo-generator unit receives exhaust steam at the rate of 196,000 kg/hr. Vacuum in condenser is 702 mmHg. Sea water for cooling enters at 29.5°C and leaves at 37.5°C. For steam turbine condenser, manufacturers consider 950 Btu/lb of steam turbine condensed as heat given up to cooling water. Calculate the logarithmic mean temperature difference.
The percent rating of water tube boiler is 200 %, factor of evaporation is 1.10, and heating surface is 400 ft2. Determine the rate of evaporation, in kg/hr.
A three-stage compressor receives 500 lps of air at 101 kPaa and 27degrees Celcius, anddischarges at 750 kPaa. Determine a) the power required; b) the pressure at eachintercooler; c) the maximum temperature; and d) the heat transferred in each intercooler. e) What is the discharge temperature of a single-stage compressor operating at the sameintake and discharge temperatures?
Steam CERE KJ -Valve Control volume boundary Turbine Initially evacuated tank In case of emergencies, a turbine is connected to an active steam pipe line using a valve. When the valve is opened, steam from the pipe line, which is initially at 550°C and 10 MPa, flows through the turbine into a 0.64 m³ tank, which is initially evacuated. The valve is closed when the pressure inside the tank is 1.6 MPa and the temperature in the tank is 300°C. If the entire process is completed adiabatically, what is the amount of work generated from the turbine?
A single effect evaporator is used to concentrate 10 000 kg / hr of tomato juice from 5% total solids to 30% total solids. The juice enters the evaporator at 25 ° C. The evaporator is operated on Steam (80% quality) at 143.27 kPa. The vacuum in the evaporator allows the juice to boil at 80 ° C. The specific heat of the dilute material is 4.1 kJ / (kg ° C) and the concentrate product is 3.1 kJ / (kg ° C). Count it (a) Steam demand rate = Answer kg / hour. b. Steam economy when condensate temperature is released at 75 ° C. = Answer (kg of water evaporated / kg of steam)
In the condenser of the power plant, Ammonia is isobarically condensed to saturated liquid state with 615.2kPa and x = 0.9, the mass flow rate is 4 t/h. The heat rejected from the condensing ammonia is added to heat water, which is heated from 277K to 281K. What is the mass flow rate of water in t/h. Also sketch the T-s and P-v diagrams.