Thermodynamics B/C

[CookiePie1]

On average, how far off are your predictions.Mine are like 4 degrees off and we won our last invy.

When testing at home, my predictions were, on average, about 1-2 degrees off. Many of them I got right on, but some of them were almost 4 degrees off.

[robloxparodies]

what equation do I use to predict the final temperature of the water during the event? Stupid question, I know.

[UTF-8 U+6211 U+662F]

what equation do I use to predict the final temperature of the water during the event? Stupid question, I know.

You'll have to do lots of testing for your device first, but Newton's law of cooling is useful for predicting the temperature. However, making an equation/relation based on your own data is probably the best option.

[MattChina]

On average, how far off are your predictions.Mine are like 4 degrees off and we won our last invy.

my predictions were 3 degrees off and i got second at an invitational

[robloxparodies]

what equation do I use to predict the final temperature of the water during the event? Stupid question, I know.

You'll have to do lots of testing for your device first, but Newton's law of cooling is useful for predicting the temperature. However, making an equation/relation based on your own data is probably the best option.

Thank you! On average, what's the ideal difference of temperature to make sure your device works? When I tested my device using 150 ml of 60 C water, the final temperature was 50 C Is this good?

[John Richardsim]

Thank you! On average, what's the ideal difference of temperature to make sure your device works? When I tested my device using 150 ml of 60 C water, the final temperature was 50 C Is this good?

That's about what I've been getting too.

[bt03]

Thank you! On average, what's the ideal difference of temperature to make sure your device works? When I tested my device using 150 ml of 60 C water, the final temperature was 50 C Is this good?

That's a fantastic score. Just don't expect a high prediction score if competing with people with a decent insulator and perfect prediction.

[Alex-RCHS]

Thank you! On average, what's the ideal difference of temperature to make sure your device works? When I tested my device using 150 ml of 60 C water, the final temperature was 50 C Is this good?

That's about what I've been getting too.

Do you mean 60C before or after pouring the water in? I’ve found that the water drops about 10 degrees just after pouring it in.

[John Richardsim]

Thank you! On average, what's the ideal difference of temperature to make sure your device works? When I tested my device using 150 ml of 60 C water, the final temperature was 50 C Is this good?

That's about what I've been getting too.

Do you mean 60C before or after pouring the water in? I’ve found that the water drops about 10 degrees just after pouring it in.

For me, that's a 60 degree bath temperature before pouring.

(When I was getting data ready for the Solon invite, I only went by the temperature after pouring...my prediction ended up being 9 degrees too high...)

[CookiePie1]

That's about what I've been getting too.

Do you mean 60C before or after pouring the water in? I’ve found that the water drops about 10 degrees just after pouring it in.

For me, that's a 60 degree bath temperature before pouring.

(When I was getting data ready for the Solon invite, I only went by the temperature after pouring...my prediction ended up being 9 degrees too high...)

I always make a 60° water bath before pouring. The rules say that "event supervisors must announce the temperature of the source water bath", so the way the event should be run, it would be a constant temperature water bath that everyone's water comes out of. Since it is run this way, it does cause for a significant amount of heat loss, and since everyone's work areas are different distances from the water station, it makes quite a difference in heat retention. Now it's basically impossible to run this event perfectly, and there will be discrepancies no matter what.

So kudos to the event supervisors who run this event.