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ME 361  THERMODYNAMICS  Wisconsin Study Resources
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154
School: Wisconsin
Course: THERMODYNAMICS
154 Equations Set 2: 154 R = Ro exp ( (1/T  1/To ) Ro = 2.2 [ohm] To = 310 [K] $if ParametricTable = 2289 [K] $else T = 422 [K] R = 0.31 [ohm] $endif (5) (6) (4) (1) (2) (3) Solution = 2289 [K] T = 600 [K] R = 0.06201 [] To = 310 [K] Ro = 2.

6142
School: Wisconsin
Course: THERMODYNAMICS
6142 Equations Problem 6142 Steam at 5 MPa and 600 C enters an insulated turbine operating at steadystate and exits as saturated vapor at 50 kPa. Kinetic and potential energy effects are negligible. Determine: a) the work developed by the turbine

954
School: Wisconsin
Course: THERMODYNAMICS
954 Equations Gas Turbine System Air enters the compressor of a gas turbien at P1 =100 kPa, T1 =300 K. The isentropic efficiencies of the compressor and turbine are specified to be 90%, 80% and 70%. The temperature at the turbine inlet is 1400 K. T

83536
School: Wisconsin
Course: THERMODYNAMICS
835&36 Equations Set 24: Problem 8.35 Number states as the EESdiagram window. W $ = `Steam' T1 = 480 [C] P1 = 8000 [kPa] P3 = 8 [kPa] $Ifnot ParametricTable P2 = 700 [kPa] $endif P ower = 100 [MW] 1000 kW MW (6) feed water heater pressure (5) (1)

845
School: Wisconsin
Course: THERMODYNAMICS
84&5 Equations Set 23: Problem 8.4 and 8.5 Water is the working fluid in an ideal Rankine cycle. Steam enters the turbine at 8 MPa and 480 C. The net power output of the cycle is 100 MW. 84 Plot the following quantifies versus condenser pressure r

534
School: Wisconsin
Course: THERMODYNAMICS
534 Equations Set 15: Problem 534 Ocean temperature energy conversion (OTEC) power plants generate power by utilizing the naturally occurring decrease with depth of the temperature of ocean water. Near Florida, the ocean surface temperature is 27

3103
School: Wisconsin
Course: THERMODYNAMICS
3103 Equations Set 7: 3103 A gas is confined to one side of a rigid, insulated container divided by a partition. The other side is initially evacuated. The following data are known for the initial state of the gas: P[1]=5 [bar], T[1]=500 [K] and V

Chapter 4 Outline
School: Wisconsin
SECTION 4.1: SPRING ELEMENTS Main Principle: All physical objects deform somewhat under the action of externally applied forces. We see this in the obvious example of a spring. However, other mechanical elements can be described in the same way. Forc

Chapter 4 Outline
School: Wisconsin

Chapter 3 Outline
School: Wisconsin
SECTION 3.1: PURE SUBSTANCE Pure Substance  Definition: a substance that has a fixed chemical composition  Does NOT have to be of a single chemical element or compound as long as the mixture is homogeneous  A mixture of two phases can still be a

Prob_2_soln
School: Wisconsin

832
School: Wisconsin
832 Steam and R134a at the same states are considered. The fluid with the higher exergy content is to be identified. Assumptions Kinetic and potential energy changes are negligible. Analysis The properties of water at the given state and at the dea

147
School: Wisconsin
Course: THERMODYNAMICS
147 Equations Set 2: 147 The variation of pressure within the biosphere affects not only living things by also systems such as aircraft and undersea exploration vehicles. a) Plot the variation of atmospheric pressure (in atm) versus elevation z ab

129
School: Wisconsin
Course: THERMODYNAMICS
129 Equations Set 1: 1.29 1.25  1 va  0.2275 = 0.1483  0.2275 1.5  1 Tb  240 0.1555  0.1483 = 280  240 0.1627  0.1483 Interpolate for T=220 at P=1.0 and 1.5 At 220 , P=1.0 MPa, v=(0.2060+0.2275)/2=0.2168 At 220 , P=1.5 MPa, v=(0.1325+0.1483

337
School: Wisconsin
Course: THERMODYNAMICS
337 Equations Set 6: 337 A pistoncylinder assembly contains 0.04 lbm of R134a. The refrigerant is compressed from an initial state where p1 =10 psia and T1 =20 F to a final state where P2 =160 psia. During the processs, the pressure the pressure

228
School: Wisconsin
Course: THERMODYNAMICS
228 Equations Set 3: 228 Carbon dioxide gas in a pistoncylinder assembly expands from an initial state where p1 =80 psia, V1 =0.65 ft3 to a final pressure of p2 =20 psia. The relationship between the pressure and volume during the process is pV1.

1313
School: Wisconsin
Course: THERMODYNAMICS
1313 Equations Set 36: Problem 1313 Octane burns completely with 120% of theoretical air. Determine a) the air fuel ratio on molar and mass bases b) the dew point temperature in C at atmospheric pressure C8H18 + a(O2+3.76 N2) = 8 CO2 + 9 H2O + b O

1358
School: Wisconsin
Course: THERMODYNAMICS
1358 Equations Set 38: Problem 1358 Adiabatic Combustion of Propane at 25 C with Air at 25 C. Plot the adiabatic combustion temperature versus percent theoretical air, X. Reaction: C3H8 + 5 (X/100) (O2 + 3.76 N2) 3 CO2 + 4 H2O + 3.76 (5 X/100) N2

1266
School: Wisconsin
Course: THERMODYNAMICS
1266 Equations Set 33: Problem 1266 Using the psychrometric chart, determine a) the rh, humidity ratio, specific enthalpy corresponding to a drybulb of 30[C] and wetbulb of 25 [C] Tdb,a = 30 [C] Twb,a = 25 [C] rha = (AirH2O, T = Tdb,a , B = Twb,

103
School: Wisconsin
Course: THERMODYNAMICS
103 Equations Set 29 Problem 103 abc A Carnot vapor refrigeration cycle operates between thermal reservoirs at 40 F and 90 F. Determine the operating pressures in the condenser and evaporator and the COP for a) R134a, b) propane and c) water TL =

238
School: Wisconsin
Course: THERMODYNAMICS
238 Equations Set 3: 238 A 12V battery is chareged with a constant current of 2 amp for 24 h. Determine the cost if electricity is $0.08/kWhr. W = I V time 0.001 I = 2 [amp] V = 12 [Volt] time = 24 [hr] Cost = 0.08 [$/kW hr] W The current co

6132
School: Wisconsin
Course: THERMODYNAMICS
6132 Equations Set 22: Problem 6.132 Air enters a turbine operaitng at steady state at 6 bar and 1100 K and expands isentropically to a state where the temperature is 700 K. Determine the pressure at the exit and the work per kg of air. Ignore kine

931
School: Wisconsin
Course: THERMODYNAMICS
931 Equations Set 25: Problem 9.31 At the beginning of the compression process in an airstandard Diesel cycle, P1 =1 bar and T1 =300 K. For maximum cycle temperatures fo 1200, 1500, 18000, and 2100 K, plot the heat adition per unit mass, the net w

148
School: Wisconsin
Course: THERMODYNAMICS
148 Equations Set 2: 148 m = 1000 [kg] P = 5.18 103 bar m3 /kg K 6 2 T 3 bar m /kg  8.91 10 v  0.002668 m3 v2 kg (1) (2) $ifnot ParametricTable T = 255 [K] P = 100 [bar] $endif V ol = v m (5) (3) (4) Solution m = 1000 [kg] v = 0.0

41
School: Wisconsin
Course: THERMODYNAMICS
41 Equations Set 8: 41 The mass flow rate at the inlet of a oneinlet, oneexit control volume varies with time according to: min =100*(1exp(2 [1/hr]*t) where min is in units of kg/hr and t is in hr. At the exit, the mass flow rate is constant

2.57
School: Wisconsin
Course: THERMODYNAMICS
2.57 Equations Problem Set 5: 257 5 kg of steam contained in a pistoncylinder assembly expands from state 1 where u1 =2709.9 kJ/kg to state 2 where u2 =2659.6 kJ/kg. During the process there is heat transfer of 80 kJ to the steam and a paddle whee

HW5
School: Wisconsin
Homework #5 traditional part Due Wednesday September 24, 2008 ME 361  Thermodynamics Fall Semester 2008 {work all these problems on paper. you can check your work using EES if you want but hand in only the byhandworkonpaper part and be sure y