What are the design parameters for the various equipment and components (includes the detailed table of specification just like the example below) used in the refrigeration and cryogenic plant for liquid oxygen production? What are the considerations? What are the design assumptions?
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- A Thomas meter is located in an air duct of 2 sq ft cross-sectional area. The air weighs 0.083 lb per cu ft, and its specific heat is 0.24. Assume a controlled temperature differential of 5° and heater potential of 110 volts. Plot the velocity as abscissa and amperage as ordinate for veloc- ity 0 to 300 ft per min. Assume constant amperage of 3, and plot tem- perature difference against velocity. Discuss the curves from the stand- point of accuracy of the system.A meeting hall is maintained at 25°C the space cooling load of 40 kW of which 30 kW is sensible cooling load the temperature of the supply air to the space must not be lowered in 18°C outdoor conditions are 35°C and 50% RH Determined. A. amount of air supplied to the space B.tons of refrigeration required of the cooling equipment C. Apparatus dew point temperature D. Exhaust capacityA batch centrifugal filter having a bowl diameter of 750 mm and a bowl height of 450 mm is used to filter a suspension having the following properties: Liquid, water Temperature, 25°C Concentration of solid in feed, 60 g/L Porosity of cake, 0.835 Density of dry solid in cake, 2000 kg/m' Final thickness of cake, 150 mm Speed of centrifuge, 2000 r/min Specific cake resistance, 9.5 x 1010 ftflb Filter medium resistance, 2.6 x 101Oft-l The final cake is washed with water under such conditions that the radius of the inner surface of the liquid is 200 mm. Assuming that the rate of flow of wash water equals the final rate of flow of filtrate, what is the rate of washing in cubic meters per hour?
- (11) A 120cm diameter diamond circular blade, mounted on a pulley-driven steel shaft, is requiring a blade peripheral linear speed of 45m/s. Motor drive is 100kW @ 1,200rpm with 150mm drive pulley. Determine: (a) the shaft rpm to attain blade peripheral speed required; (b) the shaft diameter; (c) the shaft pulley diameter.A point-focus concentrating solar collector comprising 490 heliostats and a central receiver atop a tall solar tower (see Figure 8.5) is operating under the following conditions: • Beam solar radiation flux incident on the heliostat Ib,N = 830 W/m2 • Single heliostat surface area Ah = 120 m2 • Heliostat–receiver concentration ratio C = 520 • Optical efficiency of the heliostat–receiver system ηopt = 0.8 • Effective overall heat loss coefficient of the absorber/receiver Uc.e = 35 W/m2K • HTF: molten salt • HTF temperatures at the receiver inlet and outlet Tin = 333°C and Tout = 565°C • Ambient temperature Ta = 36°C • HTF specific heat c = 1.03 kJ/(kg K) Calculate • Total aperture area of the heliostat field • Collector useful heat output rateA 3.2-litre spark-ignited engine with a centrally positioned spark plug and combustion at Top Dead Center (TDC)resulted in a flame travel distance equal to one-fourth of B. The engine is designed to function with an averagepiston speed of 8 ml/sec and a burn angle of 25 degrees relative to the engine's crank rotation. The relationshipbetween stroke (S) and bore (B) is defined by S = 0.95B. Calculate:(a) Average flame speed if the design is for an in-line four-cylinder engine.(b) Average flame speed if the design is for a V8 engine.(c) Compare the results obtained for each of the engines
- The heat dissipating capacity of a worm gearbox not depends upon one of following factors a)Temperature of surrounding air b)From the placement of a worm c)Heat conductivity of the material d)Temperature of housing surface e)Area of housingQ1. Well water contained in an AISI 304 SS pipe network for chemical treatment and posterior distribution by aerial water pipes to different locations in a food manufacturing facility was analysed. The AISI 304 SS pipe network had an approximate 300 m length, 154 mm diameter and 2.0 mm wall thickness. The AISI 304 SS pipes were welded using a Tungsten Inert Gas (TIG) welding procedure. In-situ weld quality assurance was tested by pressurized WW, and no pinhole leakage was detected. After the pipe network remained out of service for 6 months at room temperature containing stagnant, pressurized well water, pitting corrosion was observed on the weld joints and the base material by the presence of multiple pinhole leaks.(a) Discuss, with chemical equations if relevant, TWO corrosion events that may have caused the pitting corrosion.(b) What practical steps could have been taken to mitigate for this potential outcome?(c) Identify corrosion inhibition methods to mitigate for the corrosion…You are designing a 3m x 3m floor with radiant heating. The floor has 12 parallel pex pipes (k = 40 W/mK) of L = 3m, OD = 25mm and ID = 20mm. Hot water (TInfintiy 1 = 90oC, h = 200 W/m2K) runs through the pipes continuously. The surface below the pipes is perfectly insulated. Above the pipes, there is a 3mm layer of bonding material (? = 12 W/mK) and a 9mm layer of tile (k = 2 W/mK). Above the tile, there is air (TInfinity 2 = 25oC, h = 20 W/m2K). Properties of Air: k = 0.025 W/mK, Pr = 0.72, v = 1.847 x 10−5, u = 16.84 x 10−6, p = 1.2 kg/m3, B = 1/Tf (ideal gas), Hint: Assume that the “layer” of pipe starts at the center point (e.g. for conduction purposes, the pipe is OD divided by 2 thick). For convection, consider the entire pipe surface. a) What is the total heat rate entering the room above the floor? b) What is the temperature of the top of the tile?
- In the United States, energy for household heating is generally sold using English units, e.g., therm, gal, and cord. A house in Wisconsin uses 1200 therms of thermal energy during the heating season. Calculate the cost of fuel if the furnace uses (a) natural gas with an efficiency of 70%; (b) No. 2 fuel oil, efficiency 65%; (c) kerosene, efficiency 99.9% (unvented); and (d) wood with l5% moisture with an efficiency of 50%. Use the data in Tables 2.2, 2.7, and 2.13. The efficiencies are based on the HHV. Assume the cost of natural gas is $8/MBtu, the cost of No. 2 fuel oil is $3/gal, the cost of kerosene is $3.50/gal, and the cost of wood is $100/cord. Assume the bulk density of cord wood is 30 lbm/ft3 .A heat engine operating on the Carnot cycle uses solar energy as the source of high-temperature heat input. The solar irradiation, averaged over the day, has a value of qflux = 0.55 kW/m2. This provides energy to the cycle at a uniform temperature of 420 K, and the cycle rejects heat to the environment at a temperature of 350 K. The engine produces 2500 kW of power. During solution, the following parts must be in order. (a) Sketch the system and its boundary, with all the given data displayed on it. (b) Draw the temperature-entropy (T-s) diagram of the cycle. Assume start of heat addition is state point 1 and all the given data displayed on it. (c) Determine the minimum area of the solar panel in acres that is needed to provide this power. Write down units in each step of the solution, where appropriate. Write your comments on the outcome of your solution. Use correct and appropriate symbols for the known and unknown thermodynamic quantities and properties.A heat engine operating on the Carnot cycle uses solar energy as the source of high-temperature heat input. The solar irradiation, averaged over the day, has a value of qflux=0.51 kW/m2. This provides energy to the cycle at a uniform temperature of 450 K, and the cycle rejects heat to the environment at a temperature of 300 K. The engine produces 2000 kW of power. During solution, the following parts must be in order. (a) Sketch the system and its boundary, with all the given data displayed on it.(b) Draw the temperature-entropy (T-s) diagram of the cycle. Assume start of heat addition is state point 1 and all the given data displayed on it.(c) Determine the minimum area of the solar panel in acres that is needed to provide thispower Write down units in each step of the solution, where appropriate. Write your comments on the outcome of your solution. Use correct and appropriate symbols for the known andunknown thermodynamic quantities and properties. plz solve complete