Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Thermal fatigue for heat exchanger cycle test comparison

  1. Jan 23, 2015 #1
    I have a heat exchanger with water/air as medium and we test it in a facility where we cycle the water temperature between 25 to 95 degrees Celcius with a cycle time of 5 minutes for thermal fatigue.
    Our customer require the testing to be between 5 to 95 degrees instead with 3 minute long cycles but this is not possible to do in our test facility.

    Now the customer has a engineer that claims that he calculated that for the two different test-setups should be comparable we have to run our tests for 4,2 times the amount of cycles then theirs. He claims he did this with a Weibull distribution. As I have forgotten much from school I can't really tell if this is correct or not. Is his reasoning applicable to this problem or how should one make theese two test comparable?
     
  2. jcsd
  3. Jan 25, 2015 #2
    Can you ask the engineer to provide you with his calculations?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Thermal fatigue for heat exchanger cycle test comparison
  1. Heat Exchanger (Replies: 13)

Loading...