dave great post on the uncertainty. your calculations are off because you used 7.5lbm/gal as the weight of water. however, that is the weight of ice (water). the weight of water is 8.33 lbm/gal. in addition you needed to convert from BTUs to Watt to get my values. one BTU = 1054.35 joules...
the average values are as follows.
Loop 1. inlet: 77.0 F outlet: 90.8 F flow: 14.9 gpm
Loop 2. inlet: 92.0 F outlet: 86.3 F flow: 29.1 gpm
Room temperature: 78.8 F
a weird note, the Loop 1(ECW loop that provides water to the entire facility) inlet temp varies between 72-82 F dependent...
a circuit setter is just an improved flow meter. installing it will be somewhat of a hassle.
on average it was 17%. sometimes it is near 0%, but others it is as high as 100%.
the thing i do not like is the chilled loop is the one reporting a greater heat transfer. with heat transfer...
i think i have a plan. anybody see an issue with it?
i am going to bring the machine down, and close the valve allowing water to it.
there are already thermocouples hooked up to the system, but for whatever reason the temperatures displayed on the gauges are not accurate. if i hook up a flute...
For emissivity concerns, the manual says that placing the IR thermometer on metal results in innaccurate data. But, if something like a black magic marker spot was drawn on the metal, then the recording should be accurate.
the temperatures are low, 70-95 degrees F.
I understand that taking...
Can anybody explain why my numbers are not equally out?
At work, I am trying to determine the heat transfer taking place in a water cabinet. Both loops have water in them. There is a counter current flow heat exchanger where the transfer takes place.
I take the temperature measurements with a...
