Lab Manual for Tomczyk/Silberstein/ Whitman/Johnson’s Refrigeration and Air Conditioning Technology, 8th
8th Edition
ISBN: 9781305578708
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Textbook Question
Chapter 18, Problem 21RQ
A belt-driven blower assembly is equipped with a motor that turns a 5-in. drive pulley at a speed of 3450 rpm. The blower is turning at a speed of 1725 rpm. Determine the size of the driven pulley.
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A hypothetical component must not fail when a tensile stress of 15.25 MPa is applied. Determine the maximum allowable internal crack length if the surface energy of the component is 1.50 J/m2. Assume a modulus of elasticity of 350 GPa.
Fresh air at 21.1 C in which partial
pressure of water vapor is 0.018
atmosphere is blown at the rate of 214
m3/h first through a preheater and then
adiabatically saturated in spray chambers
to 100% saturation and again reheated
this reheated air has humidity of 0.024 kg
water vapor per kg dry air. It is assumed
that the fresh air and the air leaving the
re-heater have the same percentage
humidity.
Determine:-
a- The temperature of preheater,
spray-chamber and re-heater
b- Heat requirement for preheating and
re-heating
11:39 م
The answer to the problem is 7.24 N. Please show me how to get the final answer
Chapter 18 Solutions
Lab Manual for Tomczyk/Silberstein/ Whitman/Johnson’s Refrigeration and Air Conditioning Technology, 8th
Ch. 18 - Prob. 1RQCh. 18 - Power supply data should include the...Ch. 18 - Prob. 3RQCh. 18 - Prob. 4RQCh. 18 - Prob. 5RQCh. 18 - In the United States, the frequency in cycles per...Ch. 18 - Prob. 7RQCh. 18 - Prob. 8RQCh. 18 - An open single-phase motor with a centrifugal...Ch. 18 - Prob. 10RQ
Ch. 18 - Prob. 11RQCh. 18 - Prob. 12RQCh. 18 - Prob. 13RQCh. 18 - Prob. 14RQCh. 18 - Prob. 15RQCh. 18 - What is a matched set of belts?Ch. 18 - Name the different types of belts.Ch. 18 - Prob. 18RQCh. 18 - An instrument often used to check the alignment of...Ch. 18 - Why must resilient-mount motors have a ground...Ch. 18 - A belt-driven blower assembly is equipped with a...Ch. 18 - Prob. 22RQCh. 18 - Prob. 23RQCh. 18 - Prob. 24RQ
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- The answer to the problem is 17.9N. Please show me how to get the final answerarrow_forwardThe answer to the problem is 2.93 ft/s. Please show me how to get the final answerarrow_forwardExample(3): 0.15 kg/s steam at atmospheric pressure and superheated to 400 K is bled into an air stream at 320 K and 20 per cent relative humidity. What is the temperature, enthalpy, and relative humidity of the mixed stream if the air is flowing at 5 kg/ s? How much steam would be required to provide an exit temperature of 330 K and what would be the humidity of this mixture? 11:39 مarrow_forward
- The answer to the problem is 1.96 m/s. Please show me how to get the final answerarrow_forwardA cylindrical tank of diameter D is currently filled with water to a height h, as shown in the figure to the right. Water enters the tank through the pipe at (1) with a cross-sectional area A₁ and a uniform velocity V₁. The height of water in the tank is increasing at a constant rate of 5 mm/s. Given the parameters below, find the volumetric flow rate in the pipe at (2), V2, in cm³/s, and classify it as an inflow or outflow. D = 20 cm h = 0.5 m A₁ = 1 cm² V₁ = 0.1 m/s h 1 V₁ D Pwater = 1,000 kg/m³ V2 2arrow_forwardThe answer to the problem is 2.33 rad/s. Please show me how to get the final answerarrow_forward
- The answer to the problem is 0.14 rad/s. Please show me how to get the final answerarrow_forwardMarks) culate numerically the temperatures of the internal s shown in Fig. 3. The temperature of all boundaries is and the circle (arc) radius is 3m. The temperature PDE is: эт дх + ат 0. 3 = 2 ду Ay -3m Fig. (3)arrow_forwardThe answer to the problem is 58.7 ft/s^2. Please show me how to get the final answerarrow_forward
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