Recent content by clurt
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Carbon sequestration, how does it work? Is it practical?
Hi All, I understand carbon sequestration in the simplest sense is capturing and storing carbon. As seen in the title, I'm going to split this into two sections. i) How does it work? I imagine that trees, in a sense are doing this. They take in the carbon from our atmosphere and is stored...- clurt
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- Carbon Climate Emissions Practical Work
- Replies: 5
- Forum: Earth Sciences
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Bolt Tightening - Torque versus Tension
Hi guys, Bringing myself back up to speed with bolt tightening, would really appreciate if anyone has some resources or answers to these questions: 1. The proof load for torque tightening, and proof load for tension tightening 2. Main advantages and disadvantages between the two 3. What is...- clurt
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- Bolt Bolts Force Tension Torque
- Replies: 1
- Forum: Mechanical Engineering
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Calculate the moisture content of air
Really appreciate the response. Intuitively I did something similar. 1% of 7111.11 is 71.11 kg. Therefore (71.11 + density of water in ambient conditions*V) / (Density of dry air * V) > (71.11 + 0.00321* 7300 m^3)/(1.201*7300m^3) = approx 0.00107 kg/kg airI figured if 71.11kg is...- clurt
- Post #3
- Forum: Engineering and Comp Sci Homework Help
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Calculate the moisture content of air
Homework Statement (Simplified) During tests at cliffside power station, the following data was recorded from the cooling tower. A cooling tower has a 9 cell draft design, each diameter is 10m. Data D_o = 10m V_exit = 14.4 m/s T_exit(15 celsius) = 288.15K Ambient conditions : T(15 celsius) =...- clurt
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- Air Evaporation Humidity Temperature Thermodynamics
- Replies: 2
- Forum: Engineering and Comp Sci Homework Help
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Establishing equations for a worm screw mechanism
Hey guys :) So I'm looking to form equations that I can apply a Laplace transformation to. The mechanism specifically is a trailer jack - it converts rotational motion to linear motion. And its high torque provides a mechanical advantage to lifting heaving loads. Can anyone help me form...- clurt
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- Differential equations Laplace Mechanical engineering Mechanism Screw
- Replies: 2
- Forum: Mechanical Engineering
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How Does the Jacobian Process Work in Kinematics?
So r_2cos(theta_2) goes to -cos(theta_3) How?- clurt
- Post #2
- Forum: Mechanical Engineering
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How Does the Jacobian Process Work in Kinematics?
Hey guys, Im studying for an exam and don't fully understand the jacobian process. Speciffically how you can differential the middle colum with respect to theta_3. Please view attached. So from step 1 to 2. Thanks.- clurt
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- Differentiate Jacobian Kinematics
- Replies: 1
- Forum: Mechanical Engineering
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Calculating normal stress in a beam
Hello So I've done some calculations, I'd like to see if my stuff is right. Thanks :) Please view attached http://i.imgur.com/AfMZyr0.jpg area = (pi)(9^2) = 254.46 Cos53.13=15/CG CG=25kN Normal stress = 25000/254.46 =98.25- clurt
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- Beam Normal Normal stress Stress
- Replies: 1
- Forum: Engineering and Comp Sci Homework Help
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Few Questions on source tranformation
http://m.imgur.com/PM25nEB,BlRd503Additional source- clurt
- Post #2
- Forum: General Engineering
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Few Questions on source tranformation
It's question 1b) Please view attached 1. Just to clarify, when different voltage sources are in series you pick the smaller one? 2. First step, they turned the 1A and 2ohm into 2V, why does the resistance disappear? Then between the last two steps the 12/7 ohm resistance remains with 18/7...- clurt
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- Parallel Series Source Source transformation
- Replies: 3
- Forum: General Engineering
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Quick question, phasors and impedance
Do you always flip the minus sign when when using S=VI? And what about the half in front, all the time too?- clurt
- Post #3
- Forum: Electrical Engineering
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Quick question, phasors and impedance
Please see attached On line S=0.5*V*I why is the minus sign removed from in front of the "I" angle. 25.38 specifically. Could is be a typo? http://imgur.com/eUmEovo- clurt
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- Impedance Phasors
- Replies: 4
- Forum: Electrical Engineering
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Determining the amount of liquid water in a pressure vessel
So there is a mass of 100kg and volume of 1m^3. (Distiller water) That's 0.01 m^3/kg How do I calculate the percentages?- clurt
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- Liquid Pressure Pressure vessel Vessel Water
- Replies: 2
- Forum: Mechanical Engineering
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How to calculate the power generated by a turbine (steam)?
Thanks a lot! Do you recognise this formula... W = PnR(T2/P2-T1/P1) It's in the answers for a question, the question asked to calculate the work done by the air in a cylinder as it expands out. What's this equation, where is it derived from?- clurt
- Post #5
- Forum: Mechanical Engineering
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How to calculate the power generated by a turbine (steam)?
Firstly, let's assume the expansion is isentropic. An example I found: Mass flow = 0.5kg/s Pi = 6000 kPa Ti = 500 Celcius Pf = 30kPa From this, how do we find the power generated and final steam quality? Do we look at steam tables, W = m(flow) (h_1 - h_2) --- is that helpful?- clurt
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- Mass flow Power Pressure Steam Temperature Turbine
- Replies: 18
- Forum: Mechanical Engineering