Process Dynamics and Control-pages-21

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Determine the equation to use to find Temperature T of the water with respect to time (t)

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CS) Flow through a heat exchanger tube is to be studied by means of a 1/10 scale model. If the tmateaangeraarmall, carries widecreme de ratio of pressure losses between the model and the prototype if water is used in the model.

Hab. Tiruneh, [4/2/2023 1:23 AM]A solar flux q ^ * falls on a unit length of a very thin tube of diameter d. Inside the tube is a stationary water with initial temperature T_{i} (same as ambient and no gradient inside at any time) and absorbs some of the heat while the rest leaves by convection from the surface to the ambient at T_{m} Develop an equation that can help to determine the temperature of the water at any time. Plot the temperature of the water against time. For a long elapsed time what will be the temperature? To simplify the analysis use theta = T*T_{e} * d*theta = dT theta_{i} = T_{i}*T_{o} (initial condition. Hab. Tiruneh, [4/2/2023 11:53 AM]A flat wall is exposed to an environmental temperature of 38°C. The wall is covered with a layer of insulation 2.5 cm thick whose thermal conductivity is 1.4W / (m ^2 *` C and the temperature of the wall on the inside of the insulation is 315°C. The wall loses heat to the environment by convection. Compute the value of the convection…

3. Microfluidic channels will need to be fabricated on a key micro-scale sensor used by aerospace industries. Before running machining tests and analyzing machined quality, preliminary efforts are needed to evaluate selected materials and factors affecting machining process¹. Three material candidates have been selected, including 422SS (stainless steel), IN718 (nickel alloy), and Ti64 (titanium alloy) with their measured tensile properties and equation of true stress-true strain relationship used listed below. Tref25°C. Specifically, three factors will need to be evaluated, including different materials, temperature, and size effect. Please calculate true stress values for true strain ranging between 0-3 for each case listed below. Material A (MPa) & (S-¹) Tm (°C) 870 0.01 1520 422SS (Peyre et al., 2007) IN718 (Kobayashi et al., 2008) Ti64 (Umbrello, 2008) 980 1 1300 782.7 1E-5 1660 Material 422SS (CINDAS, 2011) IN718 (Davis, 1997) Ti64 (Fukuhara and Sanpei, 1993) 0 = X G (GPa) 1+ B…

'p' (liquid density 'A' (tank cross sectional area) Qin' (Input Flow Rate) P 'R' (restriction coefficient) dh Qin = A + dt '' (head of liquid) Figure 1 The single tank system (Figure 1) has been modelled by the first order differential equation given as equation. The equation describes the relationship between the input flow rate entering the tank and the head of liquid in the tank. Pi R h 5 m equation + The following constants are provided: R = 40 Kpa s m², 4 = 10 m², p= 1001 kg m², and g = 9.81 m s A pump is suddenly switched on and provides a step input flow rate of 0.5 m³s¹¹. (1) Using Laplace Transforms, solve equation and provide an expression to show how the level in the tank will vary in time after the step input has been applied. (ii) Build a Simulink model and validate the results from Part 1 (i).

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H4. Solar flux = 900 [w/m^2] h_air from glass cover = 25 [w/m^2-k] Emissivity_glass = 0.88 (nearly opaque to low frequency radiation Transmissivity of glass = 0.95 Alpha to incoming radiaiton = 0.9 T_ambient = 17 C Gap between plates = 25mm Bottom plate is insulated. Hr = radiation heat Hc = convective heat might need to use view factor FIND TEMPERATURE OF TOP SURFACE (the top is the glass) If anything is needed let me know i will try my best to update the question

2. For Pump Omicron, the pump performance data is shown in Table 2 below. Plot a curve of best fit Havailable versus Q from 0 Lpm to 30 Lpm. State the equation represented by the curve. On the same graph, plot the Hrequired versus Q and indicate the operating point. Table 2: Pump Omicron performance data Q (LPM) H (m) 0 46.5 46 42 37 29 16.5 0.0 5 10 15 20 25 30

'p' (liquid density 'A' (tank cross sectional area) 'Qin' (Input Flow Rate) "Que P 'R' (restriction coefficient) '' (head of liquid) dh Qin = A + dt Figure 1 The single tank system (Figure 1) has been modelled by the first order differential equation given as equation. The equation describes the relationship between the input flow rate entering the tank and the head of liquid in the tank. ph R 5 m equation The following constants are provided: R = 40 Kpa s m², 4 = 10 m², p= 1001 kg m², and g = 9.81 m s A pump is suddenly switched on and provides a step input flow rate of 0.5 m³s¹. (1) Using Laplace Transforms, solve equation and provide an expression to show how the level in the tank will vary in time after the step input has been applied.

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i+ %33 0 13:32 HEAT TRANSFER HW3_2020 - Kaydedildi Note you can check these equation from the text boks as well. w m md w HW6 A solid copper sphere of 10 cm diameter [ p=8954 kg/m³, C,=383 J/(kg K), k=386 W/(mK)] initially at a uniform temperature Ti=250 C, is suddenly immersed in a well stirred fluid which is maintained at a uniform temperature Tinf-50 C. The heat transfer coefficient between the sphere and the fluid is h=200 W/(m²K) ww a) Checked whether the lumped system analysis is suitable b) If it is suitable, determine the temperature of the copper block at t=5,10 and 20 min after the immersion wmw m w w ww HW7 0.1 m thick brick Wall [a=0.5x10-6 m²/s, k=0.69 W/(mK) and p=2300 kg/m³] is initially at T-230 C. The wall is suddenly exposed to a convective environment at Tinf-30 C with a heat transfer coefficient h=60 W/(m²K). By using serial solution determine a) The center temperature at 1/2 , 2 and 4 h after exposure to the cooler environment b) The surface temperature at ½ and 2…

立 Bb Slide 1 X 2 28010712 plackboardcdn.com/5c082fb7a0cdb/28010712?X-Blackboard-Expiration3D1645034400000&X-Blackboard-Signature=D06jX8mbU.. LE Seneca Virtual Com... 乙/ L %001 Problem set # 4 Chapter 5 1) A reservoir of water is drained by a 254mm diameter, square-edge orifice with center elevation 88.12m that flows directly into a stream with water surface at elevation 89.49m. The elevation of the reservoir surface is 90.48m. Find the flow through the orifice. 2) A 150-mm- diameter, square-edge orifice convey flow from a reservoir with water level at elevation 79.25m. the center of the orifice is at elevațion 66.10 m. Find the discharge for the free flow. 3) In problem 2 if the tail water is at elevation 71.98m, what is the discharge? 4) Find the discharge over a 90° V-notch weir if the head is 190.5mm. 5) Using the diagram below, find the discharge over the rectangular, sharp-crest weir Elev 37.00 Crest elev. 36.58 Channel inv. 36.12 O 7°C Cloudy ョ ((Dツ hp du

CPE614: PROCESS INTEGRATION

Part d-f

No card B a m OO ON 95)1:45 mlms.hu.edu.jo/mod/qu P Flag question Air is contained in a piston cylinder device, it expands first isothermally (1=>2) then isobaric expansion takes place (2=>3). The processes on the T-v diagram will be: Select one: A. (1-2) Horizontal line, (2- 3) Inclined line with Positive slope. B. (1-2) Horizontal line, (2- 3) Inclined line with Negative slope. O c. (1-2) Inclined line with Positive slope, (2-3) Horizontal line. D. (1-2) Horizontal line, (2- 3) Vertical line downward. E. (1-2) Inclined line with Negative slope, (2-3) Horizontal line. F. (1-2) Horizontal line, (2- 3) Vertical line upward. ...

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Fluid Dynamics System Equations

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3. Problem Estimate the frictional resistance Rp for a container ship using the ITTC 1957 model-ship correlation line Equation (2): 0.075 CF [ log,,(Re) – 21 The ship has the following particulars: Full scale ship data length between perpendiculars Lep length in waterline length over wetted surface 195.40 m Lwz Los For the wetted surface S you can use the following formula by Kristensen and Lützen (2012) derived for container ships. 200.35 m 205.65 m breadth B 29.80 m draft T 10.10 m 37085.01 m3 S = 5 + Lw. T 0.995 displacement design speed Again, use the most up-to-date ITTC water properties sheet for density and kinematic viscosity. V 21.00 kn

Make an isometric drawing based on the flowchart of the figure, where: PSA GEN = Pressure Swing Adsorption Oxygen Generator (PSA) COMPs = Compressors POMPs = Pumps HEAT = Heat Exchanger PV = Flow Valves ST TANK = Storage Tank VENT = Vent DR = Drains PSV = Pressure Relief Valve In addition, what would be the possible problems that would require flexibility correction by adding expansion joints, spring supports, anchors and brackets?