Forum: Geothermal & Heat Pumps
01-15-16, 09:51 PM
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Replies: 158
Views: 70,228
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Forum: Geothermal & Heat Pumps
01-02-16, 09:32 PM
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Replies: 158
Views: 70,228
Some generalized info:
Safety and quality...
Some generalized info:
Safety and quality run together. A high-quality job is safe by nature.
A safety interlock is nice, but a design that doesn't need one is better.
Your 7500 btu...
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Forum: Geothermal & Heat Pumps
01-02-16, 07:34 PM
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Replies: 158
Views: 70,228
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Forum: Geothermal & Heat Pumps
01-02-16, 02:38 PM
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Replies: 158
Views: 70,228
Ok, this conversation is quickly moving in the...
Ok, this conversation is quickly moving in the right direction. Your level of knowledge has progressed to the point where you can make accurate, measurable snapshots of what is happening inside the...
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Forum: Geothermal & Heat Pumps
01-02-16, 12:00 PM
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Replies: 158
Views: 70,228
From your last post, I can see your concept of...
From your last post, I can see your concept of the heat exchange mechanism in the condenser is flawed. The heat transfer function is not simply gas temperature in vs liquid temperature out. The...
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Forum: Geothermal & Heat Pumps
01-02-16, 11:14 AM
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Replies: 158
Views: 70,228
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Forum: Geothermal & Heat Pumps
01-01-16, 09:38 PM
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Replies: 158
Views: 70,228
1 bar of pressure is atmospheric pressure. At...
1 bar of pressure is atmospheric pressure. At atmospheric pressure, your gauges will read 0 psi. Absolute pressure is at 0.000000X psi at a deep vacuum. This is what a micron gauge reads: microns of...
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Forum: Geothermal & Heat Pumps
01-01-16, 04:29 PM
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Replies: 158
Views: 70,228
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Forum: Geothermal & Heat Pumps
12-29-15, 08:41 PM
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Replies: 158
Views: 70,228
DID YOU MEAN TO TAKE AN OPTICAL ILLUSION OF A...
DID YOU MEAN TO TAKE AN OPTICAL ILLUSION OF A PICTURE??
I had to look close to see that your equalizer line wasn't actually connected to the sensing bulb...
Then I had to use my imagination to...
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Forum: Geothermal & Heat Pumps
12-22-15, 09:36 PM
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Replies: 158
Views: 70,228
This rig you have going will be an awesome test...
This rig you have going will be an awesome test bed to aid you in understanding all the different factors at play in the system. You already have some time under the hood with different compressor...
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Forum: Geothermal & Heat Pumps
12-22-15, 04:42 PM
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Replies: 158
Views: 70,228
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Forum: Geothermal & Heat Pumps
12-03-15, 05:01 PM
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Replies: 158
Views: 70,228
Without pressure numbers, there is no way of...
Without pressure numbers, there is no way of knowing what your superheat or subcooling conditions are. In the quoted post, there is no way to tell if your leaving gas is barely picking up any heat...
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Forum: Geothermal & Heat Pumps
12-02-15, 08:32 PM
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Replies: 158
Views: 70,228
I believe you did better than your measurements...
I believe you did better than your measurements depict. An hour is a long time to leak heat. For every 0.1 degF of water temperature lost to the ground or evaporation, that's 230 BTU of heat transfer...
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Forum: Geothermal & Heat Pumps
11-30-15, 04:37 PM
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Replies: 158
Views: 70,228
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Forum: Geothermal & Heat Pumps
11-28-15, 12:18 PM
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Replies: 158
Views: 70,228
I'm going to relate this situation to cars.
...
I'm going to relate this situation to cars.
How you set up your machine depends on how you want to use it. If you are trying to make a top fuel dragster that will do a super fast quarter mile, it...
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Forum: Geothermal & Heat Pumps
11-26-15, 09:38 PM
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Replies: 158
Views: 70,228
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Forum: Geothermal & Heat Pumps
11-26-15, 04:20 PM
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Replies: 158
Views: 70,228
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Forum: Geothermal & Heat Pumps
11-25-15, 10:21 PM
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Replies: 158
Views: 70,228
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Forum: Geothermal & Heat Pumps
11-24-15, 07:22 PM
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Replies: 158
Views: 70,228
Your conundrum lies in matching mass flow. With...
Your conundrum lies in matching mass flow. With cap tube metered setups, it is very important to match the compressor to the cap tube to the heat exchangers. They all effect each other. Whenever some...
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Forum: Geothermal & Heat Pumps
11-23-15, 05:56 PM
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Replies: 158
Views: 70,228
My go-to dmm has a cap checker on it. It's a...
My go-to dmm has a cap checker on it. It's a "lowly" fluke 12. It doesn't read current, though. I have learnt my lesson in that regard: if I really need to measure amps on something, a non-contact...
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Forum: Geothermal & Heat Pumps
11-23-15, 02:08 PM
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Replies: 158
Views: 70,228
How would you feel if you only had a bad start...
How would you feel if you only had a bad start capacitor? It could be a possibility. Since the motor was tripping out under high current, the other possible causes are locked rotor and bad windings....
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Forum: Geothermal & Heat Pumps
11-22-15, 12:22 PM
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Replies: 158
Views: 70,228
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Forum: Geothermal & Heat Pumps
11-22-15, 10:08 AM
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Replies: 158
Views: 70,228
Congratulations! You killed one. Now you have...
Congratulations! You killed one. Now you have something to hang on your wall.
Don't rule out cap tube sizing yet. If you cut off too much cap tube, it could have overfed your evaporator. You may...
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Forum: Geothermal & Heat Pumps
10-25-15, 03:11 PM
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Replies: 158
Views: 70,228
I know exactly how you feel. My dad still works...
I know exactly how you feel. My dad still works with the bucket system. When a project starts, he fills one bucket with tools, another one with materials. During the project, tools and materials are...
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Forum: Geothermal & Heat Pumps
10-25-15, 11:32 AM
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Replies: 158
Views: 70,228
I believe the needle valve will teach you much...
I believe the needle valve will teach you much more about your rig and tuning it than any of us can. There are many factors that interact with each other in ways that are more difficult to describe...
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