Answer:
When a horse pull a cart the action is on?
A horse is harnessed to a cart. If the horse tries to pull the cart, the horse must exert a force on the cart. By Newton's third law the cart must then exert an equal and opposite force on the horse. Newton's second law tells us that acceleration is equal to the net force divided by the mass of the system.
Explanation:
A binary geothermal power operates on the simple Rankine cycle with isobutane as the working fluid. The isentropic efficiency of the turbine, the net power output, and the thermal efficiency of the cycle are to be determined
Assumptions :
1. Steady operating conditions exist.
2. Kinetic and potential energy changes are negligible.
Properties: The specific heat of geothermal water (
[) is taken to be 4.18 kJ/kg.ºC.
Analysis (a) We need properties of isobutane, we can obtain the properties from EES.
a. Turbine
P![P_{3} = 3.25mPa = (3.25*1000) kPa\\= 3250kPa\\from the EES TABLE\\h_{3} = 761.54 kJ/kg\\s_{3} = 2.5457 kJ/kg\\P_{4} = 410kPa\\\\s_{4} = s_{3} \\h_{4s} = 470.40kJ/kg\\\\T_{4} = 179.5^{0} C\\\\h_{4} = 689.74 kJ/KG\\\\ The isentropic efficiency, n_{T} = \frac{h_{3}-h_{4} }{h_{3}- h_{4s} }](https://tex.z-dn.net/?f=P_%7B3%7D%20%3D%203.25mPa%20%3D%20%283.25%2A1000%29%20kPa%5C%5C%3D%203250kPa%5C%5Cfrom%20the%20EES%20TABLE%5C%5Ch_%7B3%7D%20%3D%20761.54%20kJ%2Fkg%5C%5Cs_%7B3%7D%20%3D%202.5457%20kJ%2Fkg%5C%5CP_%7B4%7D%20%3D%20410kPa%5C%5C%5C%5Cs_%7B4%7D%20%3D%20s_%7B3%7D%20%5C%5Ch_%7B4s%7D%20%3D%20470.40kJ%2Fkg%5C%5C%5C%5CT_%7B4%7D%20%3D%20179.5%5E%7B0%7D%20C%5C%5C%5C%5Ch_%7B4%7D%20%3D%20689.74%20kJ%2FKG%5C%5C%5C%5C%20The%20%20isentropic%20%20efficiency%2C%20n_%7BT%7D%20%3D%20%5Cfrac%7Bh_%7B3%7D-h_%7B4%7D%20%20%7D%7Bh_%7B3%7D-%20h_%7B4s%7D%20%7D)
=![=\frac{761.54-689.74}{761.54-670.40} \\=\frac{71.8}{91.14} \\=0.788](https://tex.z-dn.net/?f=%3D%5Cfrac%7B761.54-689.74%7D%7B761.54-670.40%7D%20%5C%5C%3D%5Cfrac%7B71.8%7D%7B91.14%7D%20%5C%5C%3D0.788)
b. Pump
![h_{1} = h_{f} @ 410kPa = 273.01kJ/kg\\v_{1} = v_{f} @ 410kPa = 0.001842 m^{3}/kgw_{p,in} = \frac{v_{1}(P_{2}-P_{1}) }{n_{p} } \\\\= \frac{0.01842(3250-410)}{0.9} \\\\ =5.81kJ/kg\\h_{2} =h_{1} + w_{p,in}\\ = 273.01+5.81\\ = 278.82 kJ/kg\\\\w_{T,out} = m^{.} (h_{3} -h_{4} )\\=(305.6)(761.54-689.74)\\=305.6(71.8)\\=21,942kW\\\\](https://tex.z-dn.net/?f=h_%7B1%7D%20%3D%20h_%7Bf%7D%20%40%20410kPa%20%3D%20273.01kJ%2Fkg%5C%5Cv_%7B1%7D%20%3D%20v_%7Bf%7D%20%40%20410kPa%20%3D%200.001842%20m%5E%7B3%7D%2Fkgw_%7Bp%2Cin%7D%20%3D%20%20%5Cfrac%7Bv_%7B1%7D%28P_%7B2%7D-P_%7B1%7D%29%20%20%20%7D%7Bn_%7Bp%7D%20%7D%20%5C%5C%5C%5C%3D%20%5Cfrac%7B0.01842%283250-410%29%7D%7B0.9%7D%20%5C%5C%5C%5C%20%3D5.81kJ%2Fkg%5C%5Ch_%7B2%7D%20%3Dh_%7B1%7D%20%2B%20w_%7Bp%2Cin%7D%5C%5C%20%20%20%20%20%20%20%20%20%20%3D%20273.01%2B5.81%5C%5C%20%20%20%20%20%20%20%20%20%20%20%3D%20278.82%20kJ%2Fkg%5C%5C%5C%5Cw_%7BT%2Cout%7D%20%3D%20m%5E%7B.%7D%20%20%28h_%7B3%7D%20-h_%7B4%7D%20%29%5C%5C%3D%28305.6%29%28761.54-689.74%29%5C%5C%3D305.6%2871.8%29%5C%5C%3D21%2C942kW%5C%5C%5C%5C)
![W^{.} _ {P,in} = m^{.} (h_{2} -h_{1}) \\=m^{.} w_{p,in \\=305.6(5.81)\\\\=1,777kW\\W^{.} _{net} = W^{.} _{T, out} - W^{.} _{P,in} \\= 21,942-1,777\\=20,166 kW\\\\HEAT EXCHANGER\\\\Q_{in} = m^{.} _{geo} c_{geo} (T_{in-T_{out} } )\\=555.9(4.18)(160-90)\\=162.656kW\\](https://tex.z-dn.net/?f=W%5E%7B.%7D%20_%20%7BP%2Cin%7D%20%3D%20m%5E%7B.%7D%20%28h_%7B2%7D%20-h_%7B1%7D%29%20%5C%5C%3Dm%5E%7B.%7D%20%20w_%7Bp%2Cin%20%5C%5C%3D305.6%285.81%29%5C%5C%5C%5C%3D1%2C777kW%5C%5CW%5E%7B.%7D%20%20_%7Bnet%7D%20%3D%20W%5E%7B.%7D%20_%7BT%2C%20out%7D%20-%20W%5E%7B.%7D%20%20_%7BP%2Cin%7D%20%5C%5C%3D%2021%2C942-1%2C777%5C%5C%3D20%2C166%20kW%5C%5C%5C%5CHEAT%20EXCHANGER%5C%5C%5C%5CQ_%7Bin%7D%20%3D%20m%5E%7B.%7D%20_%7Bgeo%7D%20c_%7Bgeo%7D%20%28T_%7Bin-T_%7Bout%7D%20%7D%20%29%5C%5C%3D555.9%284.18%29%28160-90%29%5C%5C%3D162.656kW%5C%5C)
c. ![The thermal efficiency of the cycle n_{th} =\frac{W^{.} _{net} }{Q^{._{in} } } \\\\= \frac{20,166}{162,656} \\=0.124\\=12.4%](https://tex.z-dn.net/?f=The%20thermal%20efficiency%20of%20the%20cycle%20%20n_%7Bth%7D%20%20%3D%5Cfrac%7BW%5E%7B.%7D%20_%7Bnet%7D%20%7D%7BQ%5E%7B._%7Bin%7D%20%7D%20%7D%20%5C%5C%5C%5C%3D%20%5Cfrac%7B20%2C166%7D%7B162%2C656%7D%20%5C%5C%3D0.124%5C%5C%3D12.4%25)
The component of a regenerative vapor power cycle that permits only liquid to pass through to a region of lower pressure is a Valve/trap.
<h3>What is vapor?</h3>
- In physics, a substance in the gas phase at a temperature lower than its critical temperature is referred to as a vapor or vapor.
- This means that the vapor can be condensed to a liquid by increasing the pressure on it without decreasing the temperature.
- An aerosol is distinct from a vapor.
- A suspension of minute liquid, solid, or both types of particles in a gas is known as an aerosol.
<h3>Why does vapor form?</h3>
- Evaporation or sublimation are two processes that can be used to create it.
- Unlike clouds, fog, or mist, which are only suspended drops of liquid water in the atmosphere, watevaporur is a gas and cannot be seen.
- In the atmosphere, water vapor frequently exists below the boiling point.
Learn more about vapor here:
brainly.com/question/14578189
#SPJ4