View Single Post
Old 03-15-18, 08:59 PM   #15
ecomodded
Supreme EcoRenovator
 
Join Date: Sep 2012
Location: Vancouver Island,Canada.
Posts: 1,036
Thanks: 116
Thanked 100 Times in 87 Posts
Default

Quote:
Originally Posted by Semipro View Post
Heating time is a measure of performance (e.g. capability) not efficiency. I'd argue here that efficiency is energy in/versus energy out to accomplish a task.
https://en.wikipedia.org/wiki/Electrical_efficiency
Since the end goal is heating, and all the electrical input energy is converted into heat, and the system is essentially closed with respect to external heat loss, I challenge the assertion that scaling results in decreased efficiency.
The overall heat transfer coefficient of the system takes a hit with a scale build up The pdf I linked to earlier has a list of papers / books to back up the info.

Scale sucks more heat out faster and takes longer to put the energy in to accomplish the same temperature rise. A two fold hit then there's lifespan to add to the scales effects
__________________

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
ecomodded is offline   Reply With Quote
The Following User Says Thank You to ecomodded For This Useful Post:
jeff5may (03-15-18)