Q22 An oil tanker is being filled with oil at a rate of roughly 170 –...
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Q22 |
An oil tanker is being filled with oil at a rate of roughly 170 – 190 Litres/minute. The oil comes from a vertical, cylindrical vessel (at atmospheric pressure) with 8 metres diameter. A flow meter can be used to measure the actual filling rate. Manufacturer data shows that the flow meter is 95% accurate when measuring flow rate between 150 – 200 litres/minute. A level gauge can be used to measure the amount of oil being drained from the oil vessel. Manufacturer data shows that the level gauge is accurate within ±4mm at any height. Which of the above measurement device will you choose for more accurate result, if it takes 15 minutes to fill the tank For simplicity, assume that the time taken from zero flow to reach the maximum filling rate is negligible. ? HINT :
All calculations must be supplied to support your answer, marks will be deducted for missing calculations. |
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Q22
An oil tanker is being filled with oil at a rate of roughly 170
–...
4. A tank is filled with incompressible oil to a depth of (h) 6.43 m open...
4. A tank is filled with incompressible oil to a depth of (h) 6.43 m open tank The tank is being drained via a horizontal pipe that is attached at a height of (h2) 0.789 m above the tank bottom. Oil is flowing out of the tank into the pipe at a rate of 2.34 x 10 m'/s, but the tank is so large that the descent speed of the oil level at the top is negligible (0) The gauge...
A tank is filled with incompressible oil to a depth of (h_1) 6.43 m. The tank...
A tank is filled with incompressible oil to a depth of (h_1) 6.43 m. The tank is being drained via a horizontal pipe (radius 1.92 cm), attached at a height of (h-2) 0.789 m above the tank bottom. Oil is flowing out through the pipe at a rate of 2.34 times 10^-3 m^3/s, but the tank is so large that the descent speed of the oil level at the top is negligible (almostequalto 0). The gauge pressure in the drain...
The system below shows a simplified schematic of an oil transfer system between tanks, from left...
The system below shows a simplified schematic of an oil transfer system between tanks, from left to right: L L The oil specific gravity is 0.77 and its viscosity is 2.7 [cP). The pipes are horizontal and coaxial (neglect difference in height between suction and discharge). The tanks are closed but vented so that they are at atmospheric pressure ([atm]). Assume for simplicity that the liquid level in each tank is 2.5 (m) above the level of the pipes (in...
say if its true ir false Indicate the True (1) or False statement in the following...
say if its true ir false
Indicate the True (1) or False statement in the following 1. ( The vernier scale (on the smaller moving portion of the caliper) gives the most significant digits in the reading 2. ) Abbe's principle states that the minimum accuracy may obtain when the standard scale and the work piece being measured are aligned on the same line measurement 3. (' ) Thermocouples can be made smaller in size than most RTD's so they...
L 2. Steady statemass balance: Water is flowing at steady state in a 0.1 meter-diameter pipe...
L 2. Steady statemass balance: Water is flowing at steady state in a 0.1 meter-diameter pipe with a maximum velocity (turbulent profile) of 0.3 meters/sec. The pipe then goes through an expansion, to where it is then flowing in a 0.5 meter-diameter pipe, and the flow regime has changed from turbulent to laminar. In the second section of pipe, calculate the velocity as (a) block flow profile (Vavg), and (b) maximum velocity in laminar flow profile? HINT: you will need...
summatize the following info and break them into differeng key points. write them in yojr own...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
summarizr the followung info and write them in your own words and break them into different...
summarizr the followung info and write them in your own words and break them into different key points. 6.5 Metering Chamber: 6.5.1 The minimum size of the metering box is governed by the metering area required to obtain a representative test area for the specimen (see 7.2) and for maintenance of reasonable test accuracy. For example, for specimens incorporating air spaces or stud spaces, the metering area shall span an integral number of spaces (see 5.5). The depth of...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
4. A tank is filled with incompressible oil to a depth of (h) 6.43 m open tank The tank is being drained via a horizontal pipe that is attached at a height of (h2) 0.789 m above the tank bottom. Oil is flowing out of the tank into the pipe at a rate of 2.34 x 10 m'/s, but the tank is so large that the descent speed of the oil level at the top is negligible (0) The gauge...
A tank is filled with incompressible oil to a depth of (h_1) 6.43 m. The tank is being drained via a horizontal pipe (radius 1.92 cm), attached at a height of (h-2) 0.789 m above the tank bottom. Oil is flowing out through the pipe at a rate of 2.34 times 10^-3 m^3/s, but the tank is so large that the descent speed of the oil level at the top is negligible (almostequalto 0). The gauge pressure in the drain...
The system below shows a simplified schematic of an oil transfer system between tanks, from left to right: L L The oil specific gravity is 0.77 and its viscosity is 2.7 [cP). The pipes are horizontal and coaxial (neglect difference in height between suction and discharge). The tanks are closed but vented so that they are at atmospheric pressure ([atm]). Assume for simplicity that the liquid level in each tank is 2.5 (m) above the level of the pipes (in...
say if its true ir false
Indicate the True (1) or False statement in the following 1. ( The vernier scale (on the smaller moving portion of the caliper) gives the most significant digits in the reading 2. ) Abbe's principle states that the minimum accuracy may obtain when the standard scale and the work piece being measured are aligned on the same line measurement 3. (' ) Thermocouples can be made smaller in size than most RTD's so they...
L 2. Steady statemass balance: Water is flowing at steady state in a 0.1 meter-diameter pipe with a maximum velocity (turbulent profile) of 0.3 meters/sec. The pipe then goes through an expansion, to where it is then flowing in a 0.5 meter-diameter pipe, and the flow regime has changed from turbulent to laminar. In the second section of pipe, calculate the velocity as (a) block flow profile (Vavg), and (b) maximum velocity in laminar flow profile? HINT: you will need...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
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