consisting of a mixture e balloon-shaped gas cavi sondeh
Q: Fuel oil has the following composition (in % by mass): carbon 85%, hydrogen 13%, and sulfur 2%.…
A: Given Datacarbon=85%Hydrogen=13%Sulphur=2%Stochiometeric A/F=?Mole fraction=?
Q: The humidity ratio of the air?
A: Given; Air in a room is; T=380CRelative humdity=65%Pressure,p=0.2 MPaSaturation…
Q: For a mixture, the pressure and temperature are independent properities. True Fal
A: For a mixture pressure and temperature are dependent properties. It means that the boiling…
Q: • The .... assumes that the water vapor in the combustion products condenses, and thus, includes the…
A: Given Statement :- The........... assumes that the water vapour in the combustion products…
Q: One mole of fuel [CH] with a mole of air are mixed. The mixture is ignited. The products analysis…
A:
Q: (c) Do gases usually have a constant specific weight?
A: The specific weight of the gas: The specific weight of the gas is also termed as the specific…
Q: During complete combustion, the total mass of the substances before combustion willI Select one: O…
A: It is required to determine total mass of combustion product
Q: How can we calculate air enthalpy change?
A: The change in the enthalpy is the content of heat or it can be defined as the amount of heat that…
Q: Natural gas is burned to produce hot water to heat a clothing store. Assuming that the natural gas…
A:
Q: From your analysis, which of the component that is controlling the pressure delivered to the…
A: working of pressure valve:- if i consider spring loaded pressure valve, here diaphragm will open and…
Q: ydraulic reaction turb O kW of power. What
A:
Q: ngine using octane as fuel gives equal volumes of CO, and unused O, Computer actual and…
A: solution of above problem is below.
Q: The rate of reaction and the laminar flame propagation speed O (a) have peak values for slightly…
A: I think its answer may be the first part: have peak values for slightly lean mixtures.
Q: 17. During an isentropic process of 2 of oxygen, the temperature increases from 20°C to 120°C.…
A:
Q: Pump gasoline may contain a small amount ofalcohol. Name three problems that can occur ifthere is an…
A: A minor quantity of alcohol may be present in pump gasoline. A allowed level of alcohol in…
Q: Briefy discuss the photosynthesis and state its importance in petroleum engineering point of view
A: To find:- discuss the photosynthesis and state its importance in petroleum engineering point of view
Q: Explain the following terms with suitable examples а. Enthalpy of reaction hR b. Enthalpy of…
A:
Q: Match the following lists List-1 List-2 1. All the three phases - solid, liquid and vapour co-exists…
A: Given:
Q: Pls anwer thank you! Methane burns with stoichiometric quantity of air. The air/fuel ratio by…
A:
Q: What is the best way to keep the air at high humidity in a biofilter?
A: Biofiltration is a pollution control technique using a bioreactor containing living material to…
Q: of water vapor me How many grams Saturate Kilogram of ब9iced तोo air at thes e temperatures? 40° C-…
A: Amount of Water Vapor Needed to Saturate 1 Kilogram of Air at Various Temperatures (the saturation…
Q: The exhaust from an engine running on benzole was measured with the help of Orsat apparatus. Orsat…
A: Mass of fuel considered be 1kg or 1000gmCarbon , C=0.88kgCMolecular mass of carbon =12Hydrogen,…
Q: Question 15 What is the Ideal Gas Law and what does each letter represent?
A: Ideal gas law is the equation which approximate the behaviour of several gases
Q: At what maximum pressure must a be in order to contain water vapor at 10°C? system
A: Giventemperature of the water vapour is 10oC
Q: The entering steam is saturated vapor superheated vapor O saturated liquid Oa two-phase liquid-vapor…
A: Solution:
Q: A GACEOUS FUEL WAS REPORTED to HAVE THE TOLLOWING VOLUMETRIC ANALYCIS: 84.1% 6.7% CH4 0.8% 8.4% CO2…
A: Given that, Volume fractions,CH4=84.1 %,C2H4=6.7 %,CO2=0.8 %,N2=8.4 %, Write the chemical equation…
Q: The enthalpy of vaporization of a pure substance Select one: a. Increases with temperature b.…
A: In the TS diagram in a dom
Q: General gas equation is.. Select one: O None Cp - Cy = R/J PV = mRT PVn = C PV = nRT
A: General Gas Equation is :- Cp - Cv = R PV = mRT PVn = C PV = nRT Here P is pressure V is…
Q: A) Explain in detail about gasification system B) List four difference between gasification and…
A: Combustion is the process in which the heat is generated through the various raw materials. The…
Q: Saturated state of humid air means dry bulb temperature equal to wet bulb temperature all the above…
A: Humid air is the air having water vapor in it. Hence the air is said to be humid. Here for this…
Q: I) C,H, is burned in an engine with a rich fuel-air ratio. Dry analysis of the exhaust gives the…
A:
Q: CH, is burnt with a stoichiometric amount of air. The total number of moles in the products will be.…
A: Solution:
Q: 2- The dry air is that does not contain: Select one: a. steam b. inert gasses C. oxygen d. nitrogen
A: It is needed to determine what is absent in dry air.
Q: the air - Q₂) Find the stoichiometric air-fuel ratio for the combustion of C8H18 in petrol engine.…
A:
Q: 4. Pentane (C;H12) is reacted with air in an equivalence ratio (1.333). Determine the percentage…
A: The chemical reaction based on 100 moles of the dry products and the amount of fuel is,…
Q: The enthalpy of vaporization of a pure substance Select one. Oa Increases with temperature Ob…
A:
Q: Complete the following gas tables:
A: Given data Given table
Q: The humidity
A: Given data; Total pressure,p=750 mm of HgPartial pressure,pv=20mm of HgWe have to find teh…
Q: . Complete the following gas tables:
A: Given data Given table
Q: Propane is combusted with 100% excess air that of methane. Determine (a) actual F/A ratio in kgf/kga…
A:
Q: Can we use water as fuel?
A: Fuel: It is a material or a fluid that used to produce energy (heat) by burning in presence of…
Q: Atmospheric air at dry bulb temperalure 28°C & wet bulb lemperature 17°C is ccoled to 15°C, wilthout…
A: Given:Atmospheric pressure, Pa=1.013 bardry bulb temperature of air, Td=28o CWet bulb temperature of…
Q: Enthalpy of vaporisation decreases as the O A. temperature or pressure increases. B. temperature or…
A:
Q: 18 A new fuel being de veloped for use in internal combustion engines consists of 2 me thanol and 2…
A: Given dataMethanol and buteneTo determine a] Stoichiometic Air fuel ratiob] Anti-Knick index AKI
Q: the pressure difference across an air ?
A: Given: Diameter,d=0.004 mSurface tension,σ=0.074 N/mBubble of diameter is immersed in water having…
Q: Determine the percentage analysis imetric analysis of a hydrocarbon fu ombustion. Consider air to…
A:
Q: Identify if the following phase is saturated, subcooled, superheated, or wet-mixture. Temp Pressure…
A: Given Data P=16. MPa T=335°C
Q: argue briefiy thất thế heat capacity at constant pressure is capacity at constant volume for a gas…
A: Thermodynamics: It is a branch of science which deals with work , heat , energy. Also it studies…
Step by step
Solved in 2 steps
- 3. (Slow or Fast, which one? – Circle one) cooling rates results in coarse dendritic structures. 4. The higher the viscosity of the melt, the . its fluidity? 5. Name 3 defects in casting: 6. Internal or external are an effective means of reducing shrinkage porosity during solidification. 7. Is green-sand molding expensive? 8. .... are inserts placed in the molds to form the hollow regions in casting. 9. The method of casting turbine blades: Sample A 10. Which one has higher stiffness? Sample A or Sample B Sample B 11. Which one has higher toughness? Sample A or Sample B 12. Which one has higher strength? Sample A or Sample B 13. Which one has higher ductility? Sample A or Sample 14. Higher ......... means more rigidity. Strain 15. Before the no-slip point, the velocity is (higher or lower, which one? - Circle one) 16. In flat-rolling process, using smaller diameter rolls (increases or decreases, which one? - Circle one) the roll force. 17. Balls for ball bearings can be made by rolling…EX.3//A cylindrical riser must be designed for a sand-casting mold. The casting itself is a steel rectangular plate with dimensions 7.5 cm x 12.5 cm x 2.0 cm. Previous observations have indicated that the total solidification time (TTs) for this casting =1.6 min. The cylinder for the riser will have a diameter-to-height ratio=1.0. Determine the dimensions of the riser so that its TTS = 2.0 min.(9,00 Puanlar) A riser in the shape of a sphere is to be designed for a sand casting mold. The casting is a rectangular plate, with 8- length 50 cm, width = 35 cm, and thickness = 4 cm. If the total solidification time of the casting itself is known to be 7,5 min, determine the diameter of the riser so that it will take 30% longer for the riser to solidify. %3D Riser volume: V3(TD3)/6(D%3Ddiameter) Riser area: A=TD2 Casting volume: V-L-Wt (L-Length, W=width, t-thickness) a) 8,41 cm b) O 7,34 cm c) 6.62 cm 11,46 cm Boş bırak KÖnceki 8/43 Sonraki> Каpat
- 2. What do the various elements that comprise the gating system? what are the pouring basin in a sand casting? 3. Explain why a sprue should be tapered? 4. What are the disadvantages of die casting? 5. Explain the various kinds of patterns in use. What are the allowances provided How do the patterns differ from the casting required? 6. Define Expendable-mold, Expendable-pattern Casting ProcessesWhich among the following design considerations for casting to be followed to reduce stress concentration in parts? O a. Shape the casting for orderly solidification O b. Avoid abrupt changes in cross section Oc Avoid thin sections O d. Make provision for easy removal of pattern from the mouldIn turbine blade casting, how is a single-crystal structure achieved? Select one or more: a. By using a curving coil-like channel in the casting mould b. By removing grain boundaries by hot working and recrystallisation c. By careful control of the temperatures of the mould d. By introducing impurities into the molten alloy in the mould
- In a particular foundry, an engine component made of aluminum is to be produced using sand casting process as shown in Figure Q2. It is specified that the rate at which the molten metal is being poured into the mold is 1.2 m'/hour. The radius of the upper portion of the sprue is 0.010 m and height is 0.2 m. Density and viscosity of molten aluminum is given as 2700 kg/m' and 0.004 Ns/m² and respectively.(9,00 Puanlar) 36 - A riser in the shape of a sphere is to be designed for a sand casting mold. The casting is a rectangular plate, with length = 25 cm, width = 15 cm, and thickness = 2,5 cm. If the total solidification time of the casting itself is known to be 4,5 min, determine the diameter of the riser so that it will take 2596 longer for the riser to solidify. Riser volume: V-(nD³/6 (D=diameter) Riser area: A-TD2 Casting volume: V-L-W-t (L-Length, W=width, t=thickness)QUESTIONS 1- Describe with net sketch: a. Pattern b. Riser c. Runners d. Core 2- Compare between open mold and closed mold. 3-Explain the main Procedures of Sand Casting. 4 - What are the important properties which are essential in good molding sand? Explain in details. 5- Mention advantages and disadvantages of casting. 6- Describe types of sand mold. 7- What are the common binders of sand mold and cores? 8- Describe Desirable Mold Properties. 9- Explain two types of patterns and two pattern allowances 10- Describe with sketches shell process casting (i) Composition of sand mixture (ii) Steps in molding (iii) Advantages (iv) Limitations and (v) Applications 11- Explain with Sketch the construction and operation of a hot chamber die casting machine. 12- Compare between hot chamber die casting and hot chamber die casting. 13- What is meant of investment casting? What are the main materials used for making the investment pattern. 14- Describe various kinds of patterns in use. 15- Why…
- a riser in the shape of a sphere is to be designed for a sand casting mold. the casting is a rectangular plate, with length 200mm, width 100mm, and thickness 18mm. if the total solidification time of the casting itself is known to be 3.5 mm, determine the diameter of the riser so that it will take 25% longer for the riser to solidify. assume a value of 2 for ‘n’ m( the exponent in chvorinov’s rule). know the volume and surface area of a sphere.Problem 1 Suppose we want to cast a magnesium bar 20x20x45 mm³. We are to use a mid gating (exactly at the parting line) system with two runners and multiple ingates (no bends in runner), a top riser of 1:1.2 (D:H) ratio, and the bar lying down. The pouring cup to be used has a height of 10 mm. What would be the riser dimensions for this casting? Use the JB Caine Method (a, b, c = 0.10, 0.06, 1.08). If the choke area is 20 mm?, how long would the pouring time be?For the casting of the part, whose perspective pictures are given below, take into account the surface of the section, the model design, if necessary, the core design, all the molding stages and finally the mold in the most suitable form for casting, and name all the mold elements by showing them on the figure (Note: The hole shown in the figure, full hole.)