Industrial Motor Control
7th Edition
ISBN: 9781133691808
Author: Stephen Herman
Publisher: Cengage Learning
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Chapter 46, Problem 15RQ
To determine
The explanation for ramping and reason why is it used.
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(a) Refer to the above figure .What kind of controller is it ?
(b) simplify the block diagramto derive the closed loop transfer function of the system.
(C) What are the assumptions thatare needed to make to findthe controller gain ? What arethe value of Kp , Ti and Td ?
Lonsider a regenerative gas turbine power plant with two stages of compression and two stages of expansion. The compressor pressure ratio of the compressor is 3. Air enters each stage of compressor at 290 K and esch stage of turbine at 1400 K. The regetierator has an effectiveness of 100%, Determine
(a) The enthalpy at stage#2 in KJ/kg
(b) The enthalpy at stage in KJ/kg"
(c) The cathalpy at stager in KJ/kg*
(d) The enthalpy at stage#10 in KJ/kg
(c) The mass flow rate of air needed to develop a net power output of 50 MW
*For all final answers please enter the integer part only, (ie 1234) and do not include the decimal part and the decimal point
No rounding in your calculation
Consider a regenerative gas turbine power plant with two stages of compression and two stages of expansion.
The compressor pressure ratio of the compressor is 3. Air enters each stage of compressor at 290 K and each
stage of turbine at 1400 K. The regenerator has an effectiveness of 100%. Determine
(a) The enthalpy at stage#2 in KJ/kg⭑
(b) The enthalpy at stage#6 in KJ/kg*
(c) The enthalpy at stage#9 in KJ/kg
(d) The enthalpy at stage#10 in KJ/kg
(e)The mass flow rate of air needed to develop a net power output of 50 MW*
*For all final answers please enter the integer part only, (ie 1234) and do not include the decimal part
and the decimal point
No rounding in your calculation.
Compressor
stage 1
Regenerator
www
HX
ww
9
Combustor
Reheat
Intercooler
ww
Compressor
stage 2
Turbine 1
combustor
Turbine 2
Chapter 46 Solutions
Industrial Motor Control
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