Hydroponic garden uses the 10-m-long perforated pipe system in Figure 1 to deliver water at 20°C. The pipe is 5 cm in diameter and contains a circular hole every 20 cm. A pump delivers water at 75 kPa (gage) at the entrance, while the other end of the pipe is closed. You know that the pressure near the closed end of a perforated "manifold" is surprisingly high, and there will be too much flow through the holes near that end. One remedy is to vary the hole size along the pipe axis. Make a design analysis, perhaps using a personal computer, to pick the optimum hole size distribution that will make the discharge flow rate as uniform as possible along the pipe axis. You are constrained to pick hole sizes that correspond only to commercial (numbered) metric drill-bit sizes available to the typical machine shop. 20 cm 10 m Figure 1 Pump

Hydroponic garden uses the 10-m-long perforated pipe system in Figure 1 to deliver water at 20°C. The pipe is 5 cm in diameter and contains a circular hole every 20 cm. A pump delivers water at 75 kPa (gage) at the entrance, while the other end of the pipe is closed. You know that the pressure near the closed end of a perforated "manifold" is surprisingly high, and there will be too much flow through the holes near that end. One remedy is to vary the hole size along the pipe axis. Make a design analysis, perhaps using a personal computer, to pick the optimum hole size distribution that will make the discharge flow rate as uniform as possible along the pipe axis. You are constrained to pick hole sizes that correspond only to commercial (numbered) metric drill-bit sizes available to the typical machine shop. 20 cm 10 m Figure 1 Pump

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

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Concept explainers

Pressure Vessels

The term pressure vessel refers to a closed container that contains gas or liquid at a different pressure than environment pressure. The pressure vessels have a wide scale of applications in our day-to-day lives and other industrial places. Some common examples of pressure vessels are gas cylinders, autoclaves, compressor vessels, etc.

Question

Hydroponic garden uses the 10-m-long perforated pipe system in Figure 1 to deliver
water at 20°C. The pipe is 5 cm in diameter and contains a circular hole every 20
cm. A pump delivers water at 75 kPa (gage) at the entrance, while the other end of
the pipe is closed. You know that the pressure near the closed end of a perforated
"manifold" is surprisingly high, and there will be too much flow through the holes near
that end. One remedy is to vary the hole size along the pipe axis. Make a design
analysis, perhaps using a personal computer, to pick the optimum hole size
distribution that will make the discharge flow rate as uniform as possible along the
pipe axis. You are constrained to pick hole sizes that correspond only to commercial
(numbered) metric drill-bit sizes available to the typical machine shop.
20 cm
10 m
Figure 1
Pump

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