What are the operational steps ofa work cycle?

Identify activities and process parameters for each step of the operation.

1:Find the convolution output volume size of layer 2 (W2xH2xD2) and 3 (W3xH3xD3)

2: Find the convolution output volume size of layer 2 (W2xH2xD2) and 3 (W3xH3xD3)

3: Find the output volume size of output pooling layer (W2xH2xD2)

A facility that manufactures fireworks has a large increase in production every June, such that their peak electrical demand is 101, while in every other month of the year their peak electrical demand of 50. The local utility informs the client that they will be changing the rate structure. The demand charges will decrease from $7.54/kW to $5.37/kW. But the utility will start imposing a ratchet clause at 80% of peak demand. What will be the expected change in annual demand costs for the facility? (When entering your answer, please note that a positive # indicates that the facility costs will increase, whereas a negative # indicates that the facility costs will decrease.)

State the elements that are common to all mechatronic systems and state their purpose.

How come in free fall you feel weightless even though gravity is pulling down on you? (ignore air resistance when answering this question).

How does inserting parts to form subassemblies save time in documenting designs?

In class, we learned that ”most” of the sun’s radiation happens in the band 0.2 ? ? ? 3µm, and Stephen asked what ”most” means. What proportion of solar radiation (for a black body sun) falls in the above wavelength range. Similarly, what proportion of the Earth’s radiation (black body Earth at 290K) occurs in the wavelength band 4 ? ? ? 40µm? What wavelength range contains the middle 95% of the sun’s radiation?

For the solidification of pure gold, calculate the critical radius (r*) and the activation freeenergy (\Delta G?G*). Assume homogeneous nucleation conditions. The values of the latent heat of fusion and the surface free energy are -1.16x109 J/m3 and 0.132 J/m2, respectively. The degree of supercooling is 230 K and the melting point of gold is 1064 oC.

what is the enthalpy value of steam at 1.9 MP and 290 C?

Oxygen is contained in a piston-cylinder system initially at a temperature of 40 ^oC and a pressure of 150 kPa. The piston is 1 m in diameter and initially 20 cm above the base of the cylinder. Heat is added at constant pressure until the piston has moved 30 cm, so it's now at 50 cm.

I found the mass of the system to be 0.2898 kg, and T2 = 783K.

a) Using the table of properties of oxygen as an ideal gas, calculate the heat added to the system per unit mass, in kJ/kg

b) Repeat this calculation assuming that the specific heat as a function of temperature is linear over this range of temperatures (ie, assuming the change in temperature is "small")

c) Repeat this calculation without this assumption (ie, direct integration of empirical relation)

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -20^oC with a volumetric flow rate of 0.18 m³/s. Refrigerant exits at 9 bar, 70^oC. Changes in kinetic and potential energy from inlet to exit can be ignored.

Determine the volumetric flow rate at the exit, in m³/s, and the compressor power, in kW.

The following design and operating data were taken for a large industrial centrifugal water pump:

Required water flow rate varies from 500 m3/h to 700 m3/h. For the pump to deliver 550 m3/h, the flowrate has been reduced by partially closing the delivery valve. Motor efficiency is 93%.

a. Calculate the pump operating efficiency (the ratio of pumping power to operating pump input power delivered TO THE MOTOR.

b. Pump operating efficiency is low because of the partial valve closing to control the flowrate. What would be the best way to improve pump operating efficiency?

c. The ratio of two pump volumetric flowrates would be equal to the ratio of two pump shaft speeds to what power? The ratio of two pump operating heads would be equal to the ratio of two pump shaft speeds to what power? The ratio of two pump operating powers would be equal to the ratio of two pump shaft speeds to what power?

d. Suppose the pump energy improvement idea suggested in part b. was used for the pump. From the relations in part c., calculate the pump speed required to give a volumetric flowrate 550 m3/h. That is, (550 m3/h / design flowrate) = (RPM to deliver 550 m3/h / design RPM). From this, calculate the pumping power needed to deliver 550 m3/h using the design pumping power ratio. The difference in the operating values of the pumping power (124 kW and the pumping power with the new energy efficiency feature) is the energy savings.

Machine X costs $248,751 and has annual operating and maintenance costs of $9,980. Machine Y costs $264,500 and has annual operating and maintenance cost of $5,120. Both machines are Class 39, which specifies a CCA rate of 25%. The company needs the machines for 11 years, and at the end of year 11 machine X can be sold for $12,257 and machine Y can be sold for 13,033. The Company's MARR is 10%, and its marginal tax rate is 35%. Do an after-tax analysis to determine which machine should be chosen.

There is a vapor compression type refrigeration cycle using the refrigerant HFC 134 a. In the condenser, it is isostatically cooled, the condensation temperature is 50 ° C., and the condenser outlet is the compressed liquid at 45 ° C. In the evaporator, it is isothermally heated, the evaporation temperature is 10 ° C. and the outlet of the evaporator is heated steam at 15 ° C. When the expansion valve performs isenthalpic expansion, and the adiabatic efficiency of the compressor is 0.70, answer the following questions.

(a) Calculate the specific enthalpy of the compressor outlet temperature, specific enthalpy, condenser outlet and evaporator outlet.
(b) Obtain the cooling operation coefficient of this system.
(c) Obtain the circulation amount of the refrigerant necessary for obtaining the cooling effect of 3.0 kW in this system.

Answer:
(a) Compressor outlet: 68 ° C, 445 [kJ / kg], condenser outlet: 264 [kJ / kg]
Evaporator outlet: 409 [kJ / kg] (b) 4.03 (c) 0.021 [kg / s]

Consider a double wedge airfoil with a maximum thickness of 5% chord at angle of attack = 0 degrees.

a. Determine the approximate chord wise location (x/c) of the maximum thickness that producesthe minimum drag coefficient (cd) at Mach numbers of 2, 4 and 6. [Hint: you do not need to investigate locations ahead of 0.4c]. Include a composite plot of drag coefficient vs location of (t/c) max for each Mach number in your report.

b. Repeat this analysis for an airfoil with 10% maximum thickness. Include the calculated values on your composite plot of part I.a.

c. Discuss what your results say about the effects of Mach number and thickness on minimum drag coefficient.