Recent content by k.udhay

Hello, My house has a Vaillant VRT350 thermostat fixed on wall. I want to change it to a smart thermostat and found Tado to be interesting so far. Which model should I buy? Here are my requirements on the device: 1. I want this new device to facilitate me control the desired temperature by...

Dear all, I am interested to know if there is any spring available which is just a rectangular block - Looks more like a mechanical key. Preferrably made of metal. The dimensions / numbers shown in the following image are indicative: Pl. let me know if you have come across some applications...

Thank you so much for such a detailed answer. I am fully clear with the answers!

What I also read is that Turbines are not quick for throttle response. Is that true?

Since about 4 months now, I was constantly thinking how a jet engine works and why it can't replace the ICE for cars, particularly when it has no reciprocating masses. Just two days ago, it triggered me that the power stroke of an ICE makes the biggest difference. In a diesel ICE, during the...

Thank you so much!

This video claims that the transmitter is self powered and hence needs no battery or other electric connection. Is this possible? I have never come across an electronic device that runs self-powered. Couple of things I think might happen here: 1. A solar cell in the transmitter? 2. Everytime...

Ah, but the number 4363.87 should not be a part of the equation. Like I said, I would like to use a formula with which I can change the interest rate, years of coverage etc.

Might be true, but where can I find this formula? Thank you for helping me.

Sorry for a very late reply and I really appreciate your efforts to help me! I actually started form the"mathsisfun" page. However I still couldn't figure out the sequence. Also this morning, after seeing your first reply, I tried desmos also. Though a parabola equation based regression was...

Below is a screenshot of an insurance policy: I was told by the insurance company that the return becomes lower and lower with the age till death increasing. And this reduction in return is by an annuity ratio of 6%. I wanted to find out the formula so that I can understand the effect of...

This is a bit confusing to me. If you tighten by X deg for both the proposals A and B, IMO B will be the better case. B has smaller shank length which means it has higher stiffness. For same angular rotation of the bolt, the one with more stiffness (which is B) will create more preload on the...

Thanks. What do you think on the clamping load between the two plates when the bolts in two conditions were given same tightening torque?

To me it really doesn't make difference. Let me think it out loud: Longer shank (=unthreaded area in the bolt) is less stiff For a given torque this can thus stretch more Shorter shank is stiffer For the same torque this will stretch less But in either case, the preload between the male and...

Hello all, In a recent discussion, I came across this question of influence of free length (or unthreaded length) in bolts in retaining the clamping force between the elements to be joined. Out of the two proposals in the attached pic., which one will keep the two plates clamped for a longer...