calculating savings 1

[pitfall]

I am in the process of implementing a PdM program. Part of my responsibilities is quantify savings. Is it possible to calculate energy usage via temperature differences? i.e. Fuse 1 is 20 degrees hotter than Fuse 2 and 3. Therefore fuse 1 is using 4 watts more energy.

 

[creg41]

I have heard of two engineering firms that have calculated this information. I am still researching this one myself. maybe out in the open with other input we can get it done. I was told it was as simple as measuring the loss in voltage at either end of the anomaly which still had good connections. the result is the loss of voltage due to the anomaly and I have done this in several instances with a voltage meter which has shown a voltage loss in 1-4 volts but I dont think a standard voltage meter is the tool to use. It is the same as using a continuity tester except your measurments are generally on an energized component which is somtthing most electricians do but I think you need an istrament that measures a smaller amount of voltage to get a more refined number then associate it with the temperature of the hot spot. I am not an electrical engineer so my knowledge is limited. If I am on the right track so far the rest is an approximate calculation based on kilowatt usage and cost which fluxuates between equipment, power companies etc.

 

[pitfall]

I found this while articale while searching

http://www.flirthermography.com/media/2003_Kacuba FINAL.pdf.

I am not an engineer and asked one of our EE how best to use the formula in the article. He said that we would need to measure the resitance after the component cooled and then use the formula. I was wanting to do the calculation without expending resources in colleting data. I had made the assumtion that I could do before and after amp readings and then calculate watts using a formula that I found. However, this requires my guys calling and ICT to get the readings. I wanted to find a simple "in the ball park" way of calculating savings with an * denoting that it is simply an structured estimate