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Dumb question but does the impounded box have to be 15 x 15 x 15 cm or does just the thermo device have to be within those dimensions and the impounded box can possess whatever dimensions?

geniusjohn5 wrote:Dumb question but does the impounded box have to be 15 x 15 x 15 cm or does just the thermo device have to be within those dimensions and the impounded box can possess whatever dimensions?

The impounded box and the device are the same thing? If you're talking about your other materials, you're not limited to 15x15x15. Just the device.

CookiePie1 wrote:

geniusjohn5 wrote:Dumb question but does the impounded box have to be 15 x 15 x 15 cm or does just the thermo device have to be within those dimensions and the impounded box can possess whatever dimensions?

The impounded box and the device are the same thing? If you're talking about your other materials, you're not limited to 15x15x15. Just the device.

Ok so it's not let I have to put my thermo device inside another box? I'm just acting super paranoid haha

geniusjohn5 wrote:

CookiePie1 wrote:

geniusjohn5 wrote:Dumb question but does the impounded box have to be 15 x 15 x 15 cm or does just the thermo device have to be within those dimensions and the impounded box can possess whatever dimensions?

The impounded box and the device are the same thing? If you're talking about your other materials, you're not limited to 15x15x15. Just the device.

Ok so it's not let I have to put my thermo device inside another box? I'm just acting super paranoid haha

You can put it in a box if you want; mine was in a box last year. Be sure you label both boxes with your team name and team number though.

Is a k-value of -.00749 any good? Honestly I have no idea

stevieb711 wrote:Is a k-value of -.00749 any good? Honestly I have no idea

It depends on the circumstances of your test. If you have a low volume and high temperature (e.g. 75mL and 75 degrees C), then I'd say that's pretty decent - we get -.009 to -.01. If it's on the other end of the spectrum (e.g. 125mL and 60 degrees C), that would be kind of high - we get -.004 to -.005. In the middle, that's a decent score - I'd expect about the same value from our box.
TL; DR: It depends on your volume and starting temperature, but at a medium volume and temperature, that's pretty good.

smayya337 wrote:

stevieb711 wrote:Is a k-value of -.00749 any good? Honestly I have no idea

It depends on the circumstances of your test. If you have a low volume and high temperature (e.g. 75mL and 75 degrees C), then I'd say that's pretty decent - we get -.009 to -.01. If it's on the other end of the spectrum (e.g. 125mL and 60 degrees C), that would be kind of high - we get -.004 to -.005. In the middle, that's a decent score - I'd expect about the same value from our box.
TL; DR: It depends on your volume and starting temperature, but at a medium volume and temperature, that's pretty good.

Would a foam drink koozie count as a "commercially available thermos/cooler/vacuum sealed device"? (just look up foam drink koozie if you don't know what I'm talking about)

CPScienceDude wrote:

smayya337 wrote:

stevieb711 wrote:Is a k-value of -.00749 any good? Honestly I have no idea

It depends on the circumstances of your test. If you have a low volume and high temperature (e.g. 75mL and 75 degrees C), then I'd say that's pretty decent - we get -.009 to -.01. If it's on the other end of the spectrum (e.g. 125mL and 60 degrees C), that would be kind of high - we get -.004 to -.005. In the middle, that's a decent score - I'd expect about the same value from our box.
TL; DR: It depends on your volume and starting temperature, but at a medium volume and temperature, that's pretty good.

Would a foam drink koozie count as a "commercially available thermos/cooler/vacuum sealed device"? (just look up foam drink koozie if you don't know what I'm talking about)

I doubt it but don't rely on being able to use it

UTF-8 U+6211 U+662F wrote:

CPScienceDude wrote:

smayya337 wrote: It depends on the circumstances of your test. If you have a low volume and high temperature (e.g. 75mL and 75 degrees C), then I'd say that's pretty decent - we get -.009 to -.01. If it's on the other end of the spectrum (e.g. 125mL and 60 degrees C), that would be kind of high - we get -.004 to -.005. In the middle, that's a decent score - I'd expect about the same value from our box.
TL; DR: It depends on your volume and starting temperature, but at a medium volume and temperature, that's pretty good.

Would a foam drink koozie count as a "commercially available thermos/cooler/vacuum sealed device"? (just look up foam drink koozie if you don't know what I'm talking about)

I doubt it but don't rely on being able to use it

Ok, I included it in one of my early designs and it performed really well. But I didn't want to be told I wasn't allowed to use it at a competition and be screwed for my predictions.

Just prepare a replacement ( a way it could be removed e.g.). If it can't be removed, then exacto/duct tape it enough it doesn't look like a commercial product. Some proctors can be really picky.