Chapter 15, Problem 18QAP

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

Suppose that X and Y have the following joint probability distribution 2 1 [0.1 y 4 0.151 P(X,Y) = x3 0.2 0.3 50.1 0.15 a) Evaluate the marginal distribution of X and Y. b) Find P(Y/X) and P(X/Y). c) Find P(Y=2/X=3). d) Find μx, μy, σ,σ and oxy.

Question:  Data:  Total budget = $25,000 BCWS = $ 8,333 BCWP = $ 6,400 ACWP = $ 7,800 Project duration = 40 days Data date: 10 days   1) Perform the following analyses of the project based on the data given above. Cost Variance Schedule Variance             2) Plot an S-Curve and show CV and SV on it. Please submit only professional quality work             3) Interpret results to explain the project   Please submit S-Curve and show CV and SV on it in a professional and clear graph.

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

What are the advantages and disadvanatges of accelerating a construction schedule by stacking trades on top of each other?

Design a proportional derivitivecontroller for a plant orsystemthat satisfies the following specifications : 1. is steady-state error is less than 2 % for a ramp input.   2.) Damping ratio (zeta) is greater than 0.7have determined the   3. Once youvalue of kp and kd, then plotthe response of the compensated(with controller) and uncompensated( without the controller, only the plantsystem using MATLAB.

Determine forces in members BC, GF and CG and nature of forces 9 m D 4 m C 4m 500 F 4 kN 6 kN 4 m 3 m B3 G E Assignment-2 A

Find forces in all members of the truss shown in Fig. Also find reactions at supports. 12 kN 20 kN ΙΟΧΟΙΟΙ 2 m 2 m 2 m 3 m C G E 4 m B Determine forces in members BC, GF and CG and nature of forces 9 m D 4 m C 4 m F 4 kN 6 kN 4 m 3 m B3 C E Assignment-2

Only focus on H(3), which the answer is minus 1.26 KJ/mol.  This also has the ideal gas of nitrogen gas N2.  Two enthalpies need to be calculated for this.  The first enthalpy is H = (specific volume) times (pressure difference).  For the specific volume of nitrogen, how was 12.089 x10^(-5) m^3/mol obtained? I understand the second enthalpy for the heat capacity for nitrogen gas.