Solve the equivalent resistance of the following 3.00 £2 6.00 £2 www 2.00 2 www R R R
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- QI: Write a material balances and pressure drop equations for the following pipes network: 90 is 55 600 m 45 254 mm 10 600 m 254 mm C 35 +ve 600 m C 152 mm 600 152 mm 15 60V 600 m 152 mm 600 m 152 mmPlease illustrate the graphs K = 2 N/m m = 1/2 kgThe left side of this equation tells how much energy Q the cylinder gives to the water while it cools. The right side of this equation tells how much energy Q the water and aluminum cup absorb from the cylinder to warm up. Because it is the same energy, they are equal. What is known in this equation? Mcyl 411.7 g, malum 46.5 g, malum+water = 175 g Can you find: mwater =? g Twater = Talum = 20°C (water and cup of room temperature) 90°C, T; = 35°C (hot cylinder and cool "cylinder+cup+water" temperatures) Tcyl kCal Calum = 0.22, Cwater 1 (specific heat of water and aluminum, measured in units kg-°C What are we looking for is Ccul - How we find it? Plug all the numbers into the equation (1), Ccul will be one unknown which you can calculate from the equation. Important, convert all the masses from grams to kilograms! After you find Ccyl, compare it to known value for the copper 0.093(our cylinder is made out of copper). |Ceyl -0.093| % : · 100% 0.093
- QUESTION-) 236 °C steam flows in a pipe which features are given below. Inner and outer diameters of pipe are 300 mm and 320 mm. Coefficient of heat transmission is 40 W/mK. It's external ambient is air and it's temperature is 20 °C. Take the temperature of the pipe's external surface 180 °C. It is known that the internal temp convection coefficient is 600 W/m^2K and external heat transfer coefficient is 5,9109 W/m^2K The pipe's length is 500 meter. You need to add the radiation in the calculation. The rate of the radiation emissivity is 0.85. You can take the environmental surface temp directly. Please calculate the heat loss of pipe.QUESTION-) 236 °C steam flows in a pipe which features are given below. Inner and outer diameters of pipe are 300 mm and 320 mm. Coefficient of heat transmission is 40 W/mK. It's external ambient is air and it's temperature is 20 °C. Take the temperature of the pipe's external surface 180 °C. It is known that the internal temp convection coefficient is 600 W/m^2K and external heat transfer coefficient is 5,9109 W/m^2K The pipe's length is 500 meter. You need to add the radiation in the calculation. The rate of the radiation emissivity is 0.85. You can take the environmental surface temp directly. a-) Please draw this question on the resistance network. b-) Please calculate the heat loss of pipe. c-) By applying insulation to this pipe, it is desired to reduce the heat loss to 20% of the uninsulated loss (option a). Calculate the insulation thickness accordingly. Take glass wool as insulation material.(Conductivity of glass wool = 0.040 W/mK.) Given, The temperature of steam inside the…QUESTION-) 236 °C steam flows in a pipe which features are given below. Inner and outer diameters of pipe are 300 mm and 320 mm. Coefficient of heat transmission is 40 W/mK. It's external ambient is air and it's temperature is 20 °C. Take the temperature of the pipe's external surface 180 °C. It is known that the internal temp convection coefficient is 600 W/m^2K and external heat transfer coefficient is 5.9109 W/m^2K The pipe's length is 500 meter. You need to add the radiation in the calculation. The rate of the radiation emissivity is 0.85. You can take the environmental surface temp directly. IMPORTANT NOTE: Hi. I sent this question to be solved 3 times. But I faced with different and wrong answers in all. What i want to ask is that doesn't all the resistances except conduction and convection resistances need to change after adding the insulation materials to the pipe? In the solution the people who solved this question took the external surface temp constant. Shouldn't the…
- QUESTION 1 Three pipes A, B, and C are interconnected as shown in figure 1. The pipe dimensions are as follows: D (cm) 15 10 20 Pipeline L (m) 300 0.01 B 240 600 0.01 0.005 A 15 m 25 m B Figure 1 1.1 Find the rate at which water will flow in each pipe, ignoring the shock losses at P and entry to pipelines A and B. 1.2 Find the pressure at P.Figure 1.3. Shows a preheater for a diesel engine that allows the engine to get hot air to facilitate combustion on a cold start. It consists of an insulated and sealed cast Iron chamber in the engine block with a volume of 0.25m³ at an initial pressure of 1.5 Bar. The Initial temperature is 50 degrees Celsius. A heating element of 50 Watts is to be applied to the chamber for 0.5 minutes prior to the engine start. (i) What type of process occurs in the preparation for engine start. (ii) Determine the final temperature in the chamber just prior to starting the engine. (iii) Determine the final pressure inside the chamber just prior to starting the engine.. Suppose that a wind turbine with a blade length 40 m and power coefficient of 0.27 installed on shore. The air density is 1.2 kg/m'. In a certain day the wind speed was about 13 m/s in the first 8 hours of that day. Then it dropped to 8.5 m/s for the next 10 hours and finally became 7 m/s. Calculate the followings 1) The wind power in each time period of that day. 2) The power generated in each time period of that day. 3) The maximum theoretical generated power in each time period of that day. 4) What is the approximate cost of power generated in this day?
- 3. a) With neat diagram, State the principle of RTD sensor b) A platinum resistance thermometer has a resistance of 100 ohm at 25°C. The Resistance temperature coefficient of platinum is 0.00392 ohm/ohm°C. (i) Find its resistance at 700C (ii) Let the thermometer has a resistance of 400 ohm, calculate the value of temperature.Give True or False for the following: 1.In liquids and gases, heat transmission is caused by conduction and convection 2.The surface geometry is the important factor in convection heat transfer 3. The heat transfer by conduction from heated surface to the adjacent layer of fluid, 4. The heat transfer is increased in the fin when &> 1 5.The unit of the thermal diffusivity is m²/s 6. Temperature change between the materials interfaces is attributed to the thermal contact resistance 7. A material that has a low heat capacity will have a large thermal diffusivity. 8. Heat conduction flowing from one side to other depends directly on thickness 9.Fin efficiency is the ratio of the fin heat dissipation with that of no fin 10.The critical radius is represented the ratio of the convicted heat transfer to the thermal conductivityA train weighing 1600 tons is pulled up a 2% grade by 4476 kw. Train resistance, 8727.273 kg. What is the speed, MPH? 15.211 O 25.211 35.211 45.211