Thermodynamics B/C

[LittyWap]

Hello I came here because I have a few questions
1). i see aerogels are a abig thing for thermo, but im confused because i see alot of pictures of them seeing them in a pebble like form but i also see picture of it being one sheet. How exactly do aerogels work?

2).in the rules it says the beaker has to be roughly ratio'ed at 1.4 times the diameter, ive been looking all around abd the closest ive seen is 1.2 , does anyone know where i can buy one with that ratio?

I believe people far overestimate the advantages to aerogels. While getting a good heat retention score would be nice, I think it would be much better to focus on the test and prediction than heat retention. Poly-styrene or urethane foams should suffice, (in my opinion), up until the state and national level competition.

I doubt anyone will be such a stickler about the whole 1.4 thing. I don't see how having a 1.2 beaker would provide any advantage, if at all.

[JoeyC]

Hello I came here because I have a few questions
1). i see aerogels are a abig thing for thermo, but im confused because i see alot of pictures of them seeing them in a pebble like form but i also see picture of it being one sheet. How exactly do aerogels work?

2).in the rules it says the beaker has to be roughly ratio'ed at 1.4 times the diameter, ive been looking all around abd the closest ive seen is 1.2 , does anyone know where i can buy one with that ratio?

Takuramen if you REALLY wish to buy aerogels you can find blanket type ones like Pyrogel here
http://www.buyaerogel.com/product/pyrogel-xt-e-blanket/
make sure they're hydrophobic (waterproof) or else it will catastrophically degrade. But a small been said by others, the test and prediction is more important to your score.
Edit: I have been informed by Alex RHC that many contain fiberglass so read the MDS closely

[lamppost]

Hello, I'm new to this event! Just wondering, for Divison B, the measurements listed for the insulator are 20.0 x 20.0 x 20.0 cm, can it be 19 x 19 x 19?

[Froggie]

Hello, I'm new to this event! Just wondering, for Divison B, the measurements listed for the insulator are 20.0 x 20.0 x 20.0 cm, can it be 19 x 19 x 19?

I think so, rules state it should fit in a 20 x 20 x 20 box.

[WhatScience?]

Hello, I'm new to this event! Just wondering, for Divison B, the measurements listed for the insulator are 20.0 x 20.0 x 20.0 cm, can it be 19 x 19 x 19?

I think so, rules state it should fit in a 20 x 20 x 20 box.

This is correct...your dimensions can't exceed 20....anything lower is fine

[arv101]

I have a good understanding on the concepts of thermo now but how do I take it to the next level and get all the questions right. For example, I am now making like careless mistakes and keep missing random, different type questions. Also, where can I learn and practice the different types of possible problems (like math related)?

[lamppost]

Link to the question marathon?

[Froggie]

Link to the question marathon?

viewtopic.php?f=266&t=10926

[lamppost]

Do you guys think the Thermodynamics Kit is a good device (the cardboard one)?





do i ask too many questions? lol

[JoeyC]

One can never ask too many questions.
The thermodynamics kit is alright, but I'll tell you that anything made of cardboard will not stand a chance against properly constructed PUR foam (R-10 for the win!!!!)