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- Knowing μ for air at 20 ° C from Table 1.4, estimate itsviscosity at 500 ° C by ( a ) the power law and ( b ) the Sutherlandlaw. Also make an estimate from ( c ) Fig. 1.6. Comparewith the accepted value of μ ≈ 3.58 E-5 kg/m ∙ s.Please help me. (45 mins. left), I'll give a thumbs up) Given the ultimate/gravimetric analysis of coal as follows: C=81.95%, H2 = 4.63%, S=0.96%, N2=1.3%, O2=5.75%, Ash=6.09%, Moisture = 3.05% Using ash and moisture free analysis. Determine the; mass of the wet flue gasA steam drum contains steam having an 86% quality. Assuming that the densityof Liquid part is 989kg/m3 and that of the vapor part is 1.23kg/m3, Estimate thespecific volume of the steam. (Note: 86% quality indicates the mass in vapor state)
- Hi guys, Data assumption coal boiler operation : Steam consumption = 300 kg steam/shift, coal price per kg = $0.5, coal calorie = 6300 Kcal/kg. Questions: 1. how to calculate cost ($) steam per shift ? 2. how to calculate steam calorie per shift ? ThanksA high-pressure gas cylinder contains 50.0 L of toxic gas at a pressure of 1.40×10^7 N/m^2 and a temperature of 25.0ºC . Its valve leaks after the cylinder is dropped. The cylinder is cooled to dry ice temperature (–78.5ºC) to reduce the leak rate and pressure so that it can be safely repaired. Show your work. a. What is the final pressure in the tank, assuming a negligible amount of gas leaks while being cooled and that there is no phase change? b. What is the final pressure if one-tenth of the gas escapes? c. To what temperature must the tank be cooled to reduce the pressure to 1.00 atm (assuming the gas does not change phase and that there is no leakage during cooling)? d. Does cooling the tank appear to be a practical solution?A six cylinder 4-stroke petrol engine with bore 120 mm and stroke 180 mm under test, is supplied petrol of composition C= 82%, H, = 18% by mass. The orsat gas analysis indicated that CO, = 12%, 0, -4% and N₂ = 84% by volume. Determine (1) Air-fuel ratio
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- A process to liquify nitrogen gas (N2) from 300K, 200atm to 98.69K (saturation temperature) and 7atm is to be designed. The specific enthalpy of the saturated liquid and saturated vapor at 7atm are, Hl = 74.7 J/g and Hv = 239.2 J/g respectively. Consider first using a throttle valve alone. Sketch the path corresponding to the conditions given above on the T-S diagram on the next page. Is it possible to achieve liquefaction by a throttle valve alone? State and justify your reasoning.Using Marshall method to design an asphalt mix, the data in theTable below were obtained. The bulk specific gravity test were conduct at 25°cwhere γ water=1gm/cm³. The values of corrected stability (kN), flow (mm) and theoreticalmaximum specific gravity of asphalt mixtures for each asphalt cement percentare given in the Table below. If the value of bulk specific gravity ofaggregate mixture is(Gbam= 2.655), determine the optimum asphalt content andcheck if the value of Marshall properties at O.A.C satisfied the Iraqi StateCommission for Roads and Bridges (SCRB) requirements? What are you suggest ifone property not satisfied the (SORB) requirements?A steam drum contains steam having an 86% quality. Assuming that the density of Liquid part is 989kg/m3 and that of the vapor part is 1.23kg/m3, Estimate the specific volume of the steam. (Note: 86% quality indicates the mass in vapor state). Draw a figure or free body diagram that can support your analization of problem, and findings after solving it.