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T.7 A system for controlling flow is shown in Fig.T.7 Increasing the desired flow setting increases the compression on spring K₁, which causes z and position e of the balanced valve to move up. This in turn causes the flow valve to move down, which increases the flow. The amount of flow out is measured by a venturi-type flowmeter so that the pressure drop P₁ P, is a function of Q.. The diaphragm pre- vents leakage from the high pressure P₁ to the low pressure P₁, but it permits motion, just as a piston would. The effective area of the diaphragm is A4. The flow Q. is seen - to be a function of the flow-valve opening Y and the supply pressure P. Determine the over-all block-diagram representation for this system.

T.7 A system for controlling flow is shown in Fig.T.7 Increasing the desired flow setting increases the compression on spring K₁, which causes z and position e of the balanced valve to move up. This in turn causes the flow valve to move down, which increases the flow. The amount of flow out is measured by a venturi-type flowmeter so that the pressure drop P₁ P, is a function of Q.. The diaphragm pre- vents leakage from the high pressure P₁ to the low pressure P₁, but it permits motion, just as a piston would. The effective area of the diaphragm is A4. The flow Q. is seen - to be a function of the flow-valve opening Y and the supply pressure P. Determine the over-all block-diagram representation for this system.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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T.7 A system for controlling flow is shown in Fig.T.7 Increasing the desired flow setting increases the compression on spring K₁1, which causes z and position e of the balanced valve to move up. This in turn causes the flow valve to move down, which increases the flow. The amount of flow out is measured by a venturi-type flowmeter so that the pressure drop P₁ - P, is a function of Q.. The diaphragm pre- vents leakage from the high pressure P₁ to the low pressure P₁, but it permits motion, just as a piston would. The effective area of the diaphragm is A4. The flow Q. is seen to be a function of the flow-valve opening Y and the supply pressure P.. Determine the over-all block-diagram representation for this system. Supply P, Unit! 1 Dec. Qn Inc. www. Qo wwww. -Flow control lever Fig.T.7 P₂ K₁ -Diaphragm
Transcribed Image Text:T.7 A system for controlling flow is shown in Fig.T.7 Increasing the desired flow setting increases the compression on spring K₁1, which causes z and position e of the balanced valve to move up. This in turn causes the flow valve to move down, which increases the flow. The amount of flow out is measured by a venturi-type flowmeter so that the pressure drop P₁ - P, is a function of Q.. The diaphragm pre- vents leakage from the high pressure P₁ to the low pressure P₁, but it permits motion, just as a piston would. The effective area of the diaphragm is A4. The flow Q. is seen to be a function of the flow-valve opening Y and the supply pressure P.. Determine the over-all block-diagram representation for this system. Supply P, Unit! 1 Dec. Qn Inc. www. Qo wwww. -Flow control lever Fig.T.7 P₂ K₁ -Diaphragm
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