Hi,

I'm looking at doing a research project on using molten sodium as a heat transfer fluid in a Concentrated Solar Power plant and was struggling to find some informative literature regarding there use so far in other power plants.

I've heard that there has been some use of molten sodium in Nuclear Power plants but I'm yet to find any journal articles or research papers outline this.

I was wondering if anyone has any idea of places I could specifically search to try and find some information on this topic.

Thanks

]]>I'm looking at doing a research project on using molten sodium as a heat transfer fluid in a Concentrated Solar Power plant and was struggling to find some informative literature regarding there use so far in other power plants.

I've heard that there has been some use of molten sodium in Nuclear Power plants but I'm yet to find any journal articles or research papers outline this.

I was wondering if anyone has any idea of places I could specifically search to try and find some information on this topic.

Thanks

Hello, I need to find a way to simulate a pin that pushes down on a leather sample and causes the leather to be compressed on the pressured region. I need to analyse the time for the leather to return to the original form from the compressed form. Can anyone suggest me any software that can do this? Is it possible to use ANSYS to do this simulation on leather? (I have no experience in using this software) If so, some tips would be very much appreciated. Thank you very much! :grin:

]]>Does a gear exist that would allow the motor to drive two different sets of gears depending on back-driving resistance? In other words the gear would have two states:

1) There is no resistance against the gears/motor => the motor drives the high speed gear and the high torque gear remains free to rotate

2) There is resistance against the gears/motor => the motor drives the high torque gear and the high speed gear remains free to rotate

In both of these circumstances the gears should be non back-drivable so that the system can lock without the motor maintaining a torque. I'm an engineering student working on a prosthesis project and so any knowledge/experience/advice in this area would be greatly appreciated. Thanks!

]]>1) There is no resistance against the gears/motor => the motor drives the high speed gear and the high torque gear remains free to rotate

2) There is resistance against the gears/motor => the motor drives the high torque gear and the high speed gear remains free to rotate

In both of these circumstances the gears should be non back-drivable so that the system can lock without the motor maintaining a torque. I'm an engineering student working on a prosthesis project and so any knowledge/experience/advice in this area would be greatly appreciated. Thanks!

Hello !

I am working on a project with to antagonistic hydraulic cylinders. They both have two brackets with two screws each, i.e 8 screws in total.

how do I calculate the load(forces) that will affect the screws once the cylinders are moving?

I also added an image to make it easier for you guys to understand.

I am working on a project with to antagonistic hydraulic cylinders. They both have two brackets with two screws each, i.e 8 screws in total.

how do I calculate the load(forces) that will affect the screws once the cylinders are moving?

I also added an image to make it easier for you guys to understand.

A 1 (one) meter high tank that has a hole with threads for a screw to fit tightly, is immersed to. say 50 (fifty) meters in water where the pressure is about 5 (five) atm. The precition is so good that the screw fits so well as if there is no hole at all when the screw is driven in (closes) the hole. What pressures are there in the tank when the hole is closed and open. Is there a way to harvest energy from pulsating hydrostatic pressure.

]]>We are building a 4 motor driven, with the middle wheels being idle for support. The parameters known are :

Mass= 50 kgs

Theta (Angle ) = 60 degree

Acceleration = 0.254 m/s^2

Assuming coefficient of kinetic friction = 0.6

I am attaching the work I have done and where I get stuck.

I am having trouble calculating the normal forces (N) and frictional force so if someone could help me or tell me what am I missing in the free body diagram or the calculation it would be of great help. I am getting a negative value of N2 which doesn't seem correct. Either way if someone could check and confirm my calculation.

I need to solve this so we can choose a motor for our vehicle, so involves calculation of torque which also I have included.

Thank you very so much.

Mass= 50 kgs

Theta (Angle ) = 60 degree

Acceleration = 0.254 m/s^2

Assuming coefficient of kinetic friction = 0.6

I am attaching the work I have done and where I get stuck.

I am having trouble calculating the normal forces (N) and frictional force so if someone could help me or tell me what am I missing in the free body diagram or the calculation it would be of great help. I am getting a negative value of N2 which doesn't seem correct. Either way if someone could check and confirm my calculation.

I need to solve this so we can choose a motor for our vehicle, so involves calculation of torque which also I have included.

Thank you very so much.