candles continued

The 2 candles on the bench now are  #1 burning Grain alcohol and #2 burning Liquid Paraffin wax.

#1 is a 5 year old candle and by that I mean it was filled with wax and burning 5 years ago then placed on a shelf in the shop. I took it off the shelf today and put an updated insert and tube (wick holder)  using the same wick, I then lit it and  It has been burning a 1.5 inch long flame for 3.5 hours. You can easily read in the dark with this.

#2 I took a new can put a 1/2 oz. of Grain Alcohol in put the new wick holder and new wick and light it at the same time I lit #1 and it to ha been burning for 3.5 hours with one exception at 3 hours I checked the fuel and it was about half gone so I took a shot glass and poured in 1 oz of fuel and pulled the wick up about 1/8 ” form 1/4″ this took about 1 minute and is burning a 3/4″ flame.

100_9686

The candle in the for front is candle #1. and yes candle #2 is burning.
2:28p started #4 i dont smell it but josh says raceing fuel (less than 1/4oz) 1 1/2″ flame 1/4″ trim still no smell. 2:43 out of fuel purfect burn out.

4-10-16
2:38  started #1,2 & 3 all trimmed to 1/4″
1-2 1/4″ flame   2- 1 1/8″ flame    3-1 1/8″ flame

3:10 I put 1 under the plain air 42″ from the center of the blade (plain air is a bench fan that we made from parts around the shop and uses a R/C air plane propeller it works as well as a desk fan on med.) the flame is burning at a 90 angle it is flickering between 1/4″ and 3/8″.  it rely stinks of wax down wind.

the wind (plain air)

plain air (the wind)

#1 in the wind

#1 in the wind

3:26 can 2 is warm to touch, no fuel on insert, it is sitting off center of plain air as is 3 and the flame is holding almost 90 angle 1″ same goes for 3 although 3 is not as warm and holding a 1″ flame as well. 3:45 1 is still in the wind and is not showing any signs off drying out 2&3 still holding with no changes in burn so there not drying out ether it  still stinks down wind but i don’t have a headache or feel like i need fresh air 4:05   Time to shut down  1 is not warm at the rim hot at the thread out 2 is hot hot at out the rim 3 not as hot as 2 out.

at 9:00 last night decided to try a boil test I took the #1 candle with a long 1/8by” wick added the warming grill then took a 4 oz can and put 3 oz of 70* water  in it and placed it on the candle  by 9:30 the temp had reached 140*  at 10:20 I shut it down and raised the wick to a long 1/4″ and re lit it the water dropped to 100* by 10:36 it was back up to 175* shut it down at 10:49 because it topped out at 180*.  Will have to figure this out because i have boiled water before.i realy should be making tea I’m using a candy thermometer here.

armchair engenearing

armchair engineering

looked at #1 this morning and it was quite a mess there was soot all over the base of the warming plate, OK History #1 is the first proto made in 2010 the warming grill is a metal pencil holder with the bottom cut off  to fit a threaded ring the warming plate is a hard drive platter the threaded ring screws on to the candle. OK back to #1 the wick was set for high heat so it was sooting pretty good, the plug of soot i’m holding with the tweezers fell out of the hole in the platter that’s close to a 1/6″ thick.

carbon plug

soot (carbon) plug

look at flow pattern on the platter,

base of plater

soot on base of platter

I used a copper heat sink from a computer to cover the hole in the platter to keep the flame from touching the can of water.

copper plate

soot on copper plate

I think the boil fail was due to the copper plate so since im going to do it over I’m going to use grain alcohol and the 2nd warmer grill which is another style of pencil holder with the bottom left on and no copper. so for now i will go on with a thermal crush test the ASTME uses this on liquid glass candles and lamps in there testing, I don’t know if they do this on the plastic liquid candles or not. so i thought well try it , anyway to accomplish this im using a deep fryer to reach the 160 deg for the hot water bath that the can will sit in for 5 min then a maximum 15 second transfer to a 70 deg bath and this will crush the can if it leaks it fails. since the can is 2 pieces the failure will be at the seam of lid. we are going to boil the can with about 1/2 oz colored water(to see leaks) and the lid tight and since the candles float upside down we are holding them down with a weight. well that didn’t work i mean rely there was no change at all no sound nothing. so far the only lesson here is the can did not collapse.  OK now I’m boiling water with the can full to the brim of water in side the boiling water trying to boil the water in the can my temp is 205 its been 7 min and the can water is not boiling yet’ the seal in the cap is still intact not swelling ,nothing the seal is still use able, OK it been 20 min on boil I,m running out of water so since i have to add some water and lose my boil I’m going to go to the cold bath it’s at 54*. The can still did not collapse it did create a vacuum that did suck in the bottom but that was it, there was a hiss as i took the lid off so it was holding a vacuum. what does it take to crush this can? OK that’s it this can has been in and out of both baths 5 or 6 times with different ammounts of water from full (it never did boil) to a capfull over the last 1 1/2 hours and I still cant crush it, the can is finley showing a lot of signs of shrinking and swelling but that’s all, this time i’m going to see how long it keeps the seal