Search results for query: *

Thank you very much guys. I sat down with manuals and a couple civil engineers and once I had done the first few I understood it's not very hard, just tedious. Regards

First of all it's a third takeoff for rebar i.e. third redundency and secondly I don't need to know how to place them . All I do is finger out quantities of types by going through drawings, which by now I have no more problems with. Thirdly I don't see how a MTO should be concerning to you... no...

Hello Guys, hopefully somebody can help me the internet hasn't been too helpful. I am doing a material takedown for rebar in a large bridge construction project. Never having been subjected to civil drawings before the progress is slow and painful. I was wondering if anybody could direct me to a...

Hello guys, I am looking for a good website on the internet that has thermodynamic properties on Nitrogen (entropy, enthalpy, specific volume...). Thank you very much for any help. Regards Domenic

I have a simple optimization problem, but have almost no experience with Matlab. Is there a good tutorial website you guys can suggest to me? Thank you Domenic

Stainless steel is only stainless as along as it has an oxygen source to replenish its protective layer, however, this system will be submerged for extended periods of time. The experience my company has made with 316 and saltwater has usually ended in rust (sooner or later). So I think...

Thank you very much for your input, I should have mentioned that the fluid to be cooled/heated is salt water and the temperature range is between 2 and 40 degrees. I have had a look and I don't think titanium is anywhere near the price of FEP, this will be a one off heat exchanger so all parts...

Hello everybody, I am designing a heat exchanger which involves corrosive materials, which excludes any metal as possibilities as materials. I seem to have narrowed it down to PE by comparing polymers with their respective thermal conductivities. Now I am faced with the choice between High...

Hello, I am looking for material properties of Tygon, especially thermal conductivity. Has anybody a place they can point me to, the internet doesn't seem to offer too much. Or else can anybody tell me if it is suitable for usage in a heat exchanger. Thank You Domenic

I am conducting tests on a new underwater sensor, one of my scheduled tests is a 15000psi hydrostatic pressure test. With that I mean the sensor will have to be submerged in water and the pressure increased to 15kpsi. This is a mechanical test, i.e. I am looking for structural integrity after...

Hello, not sure if this is the right forum to post the question in, but I have a couple Sensors which I would like to pressure test up to 15000psi in water. Is there anybody that knows of a facility preferably in Canada. Thanks a lot Domenic

Hey guys, I am currently making a calibration tank for underwater sensors. I am using a heat exchanger to bring the tank to a certain temperature, once it has reached it the heat exchanger will turn itself off and only the stirrer will run during the calibration. I am trying to calculate the...

If you look at the resistivity, which is going to be the important factor in this case, you will see that the differences in the thermal conductivities don't make a large difference. ln(rout/rin)/(2*pi*L*k) Cheers

I am looking for a crude way to obtain the volumetric flow of through a propeller immersed in water. My variables are Pitch diameter RPM density and chord of the propeller. Do I need a coefficient, or an I use the relation mass flow = density x Propeller Velocity x Area. And if I can use it, how...

Sorry I forgot diameter

Just setting up a new heat exchanger system, in it I need a propeller that is able to overturn the volume of the tank in a given time. Could you please point me to the formula that relates propeller pitch to volume flow rate for one revolution. Thanks a lot for the help Domenic

a qoute to local suppliers is out at the moment so we are waiting to hear back from them. thanks for the quick reply

thx a lot guys, but once again I have also looked through microplastics and 9/32 seems to be a real oddball. I will however try the sample method. Cheers

thank you, but I have tried them already they didn't have the length I need

Hello everybody, I am looking for a nylon spacer for a 2-56 machine screw with a length of 9/32" or 7mm. I have been looking all over but all I can find is a version on McMaster which is over a dollar per spacer, I could get them machined locally for probably less. So if anybody has an idea...