Heating Ventilating and Air Conditioning: Analysis and Design
6th Edition
ISBN: 9780471470151
Author: Faye C. McQuiston, Jeffrey D. Spitler, Jerald D. Parker
Publisher: Wiley, John & Sons, Incorporated
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 1, Problem 1.20P
A chiller is to pro;ide 12 tons of cooling to a chilled water stream. That must the flow rate through the chiller be, in gpm, if the temperature of the supply water from the chiller is 46 F and the temperature of the water returning to the chiller is 6o F?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Pls.answer thank you!
Water enters the cooling tower at 55 °C and leaves at 30 °C while the heat rejected to air is 120 KW. Find
the capacity of the pump needed to pump the water.
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
The actual specific evaporation of a certain boiler is 10. Factor of evaporation is 1.05. If the heating value of fuel is 30,000 kJ/kg, find the boiler efficiency.
Chapter 1 Solutions
Heating Ventilating and Air Conditioning: Analysis and Design
Ch. 1 - Convert the following quantities from English to...Ch. 1 - Convert the following quantities from SI to...Ch. 1 - A pump develops a total head of 50 ft of water...Ch. 1 - A fan is observed to operate with a pressure...Ch. 1 - The electric utility rate for a facility during...Ch. 1 - For the business whose monthly electrical energy...Ch. 1 - Detmine the interest rate at which the project in...Ch. 1 - How much could a company afford to spend on an...Ch. 1 - Make the following volume and mass flow rate...Ch. 1 - A room with dimensions of 31020m is estimated to...
Ch. 1 - Compute the heat transferred from water as it...Ch. 1 - Air enters a heat exchanger at a rate of 5000...Ch. 1 - Water flowing at a rate of 1.5 kg/s through a heat...Ch. 1 - Air at a mean temperature of 50 F flows over a...Ch. 1 - Repeat Problem 1-10 for air at 10 C, a tube with...Ch. 1 - Air at 1 atm and 76 F is flowing at the rate of...Ch. 1 - Air flowing at the rate of 1000 cfm and with a...Ch. 1 - A chiller is providing 5 tons of cooling to an air...Ch. 1 - Air is delivered to a room at 58 F and the same...Ch. 1 - A chiller is to pro;ide 12 tons of cooling to a...Ch. 1 - Air is being rnished to a 30-ft by 40-ft by 12-ft...Ch. 1 - If cold outside air at 20 F is leaking into a...Ch. 1 - A Btu-meter is a device that measures water flow...Ch. 1 - A heat pump uses a 100,000-gallon swimming pool as...Ch. 1 - A heat pump uses a 100,000-gallon swimming pooi as...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
CONCEPT QUESTIONS
15.CQ3 The ball rolls without slipping on the fixed surface as shown. What is the direction ...
Vector Mechanics for Engineers: Statics and Dynamics
Select a mechanical component from Part 3 of this book (roller bearings, springs, etc.), go to the Internet, an...
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Define or describe each type of fluid: (a) viscoelastic fluid (b) pseudoplastic fluid (c) dilatant fluid (d) Bi...
Fluid Mechanics: Fundamentals and Applications
For the beam loading of Figure P334, draw the complete shearing force and bending moment diagrams, and determin...
Machine Elements in Mechanical Design (6th Edition) (What's New in Trades & Technology)
A nozzle at A discharges water with an initial velocity of 36 ft/s at an angle with the horizontal. Determine ...
Vector Mechanics for Engineers: Dynamics
The spring of k and unstretched length 1.5R is attached to the disk at a radial distance of 0.75R from the cent...
Engineering Mechanics: Statics
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
- 42. Water enters the cooling tower at 50°C and leaves at 28°C while the heat rejected to air is 100 KW. Find the capacity of the pump needed to pump the water. A. 1.08 li/s B. 3.22 li/s C. 2.34 li/s D. 4.23 li/sarrow_forwardFresh air is introduced in a room at such a rate that the air is changed every 2 minutes. The room is 46ft by 38ft by 10ft and the air in the room is at 70F with a percentage of 60. Outside air at a temperature of 60F is used as air supply. The outside air is heated to the room temperature by a heat exchanger. How many BTU/hr must be supplied by the heat exchanger? All total pressures may be taken as 760 mmhgarrow_forwardFind the thermal efficiency of the system in percentage to 2.d.p.arrow_forward
- A refrigeration system is used to cool water in the evaporator an 8 kg/s of water from 30C to 2C. Find the tons of refrigeration required.arrow_forwardAn auditorium of 150 seating capacity is conditioned for the given specifications. Succasshy snd Outdoor conditions .32°C and 65% R.H Required air inlet conditions.... .24°C and 55 % R.H. The quantity of air supplied .0.5 m /min/person. The required condition is achieved first by cooling and dehumidifying and then by heating. Find the following: a) the capacity of the cooling coil in tons of refrigeration b) the capacity of heating coil in kW. c) By-pass factor of the heating coil if the surface temperature of the coil is 22°C.arrow_forwardA pump operates at 600 W, the mass flow rate of the liquid is 1 kg/s, at the inlet the fluid is stagnate, and velocity at exit is 12 m/s, the mechanical efficiency of the pump is: Select one: a. 0.90 O b. 0.91 O c. 0.92 O d. 0.89 e. none of the mentionedarrow_forward
- 3. A heat sink for computer server absorbs all the heat generated and cools down by air flow. The air flow is 15 liter/s. The density of air near the heat sink is 1.25 kg/m³. The specific heat of air at constant pressure is 1,010 and the room air is 20°C. can handle. J/kg-°C. The temperature at the heat sink is 50°C, Find the server (heat) power in Watt that the heat sinkarrow_forwardWater vapor enters a continuous flow turbine at 9 MPa pressure, 500oC temperature and 60 m/s velocity, 20 kPa pressure and 95 percent dryness.degree, with a speed of 180 m/s. The turbine power is 10 MW and 5% of its power is heat transfer to the environment.a) Find the mass flow rate of the steam passing through the turbine. b) Find the inlet and outlet cross-sectional areas of the turbine. c) Calculate the adiabatic efficiency of the turbine.arrow_forwardLiquid ammonia at a temperature of 26 OC is available at the expansion valve . The temperature ofthe vaporizing ammonia in the evaporator is 2 OC. a) Find the percentage of liquid vaporized whileflowing through the expansion valve .b) The internal energy entering the evaporator. c) the cop ofthe heat pump .arrow_forward
- From the turbine the heat loss per kg of steam flow rate is 5 kW. Find the power developed in kW by the steam turbine per kg of steam flow rate?arrow_forwardSteam enters a turbine at 600 ᵒC at 7300kPa pressure and leaves the turbine as saturated steam at 75 kPa.. Turbine inlet diameter is 50 mm and outlet diameter is 300 mm. In case the velocity at the turbine inlet is 200 m / sFind the turbine output power a) find the heat transfer, ignoring kinetic and potential energy changes. B) kineticsExplain by calculating whether the energy change is negligible.arrow_forwardAir from the discharge of a compressor enters a 1 m3 storage tank. The initial air pressure in the tank is 500kPa, and the temperature is 600 ⁰K. The tank cools, and the internal energy decreases by 213 kJ/kg. Determine the ff: a.) The Work done, b.) The heat Loss (unit in KJ), c.) The change in enthalpy, d.) The final Temperature.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Refrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...
Mechanical Engineering
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:Cengage Learning
Work, Energy, and Power: Crash Course Physics #9; Author: CrashCourse;https://www.youtube.com/watch?v=w4QFJb9a8vo;License: Standard YouTube License, CC-BY
Different Forms Of Energy | Physics; Author: Manocha Academy;https://www.youtube.com/watch?v=XiNx7YBnM-s;License: Standard Youtube License