PDA

View Full Version : Evaporator Fan Heat Load



GBRD
05-05-2010, 10:42 PM
How can we find out evap fan heat load? Is it the total kWe of fans that is added directly to the total load or its the % of total load that is added after finding to final load?

In case of VSD fans, how this load would vary or be considered?

regards

lowcool
06-05-2010, 04:24 AM
try ringing the manufacturer or get some data sheets?

nike123
06-05-2010, 05:09 AM
Go with power input of motor!
http://www.engineeringtoolbox.com/electrical-motors-heat-gain-d_707.html

Magoo
06-05-2010, 05:51 AM
As nike123 said go for the drawn power, or else the rated full load amps of motor, to have a safety margin built in.
Magoo

GBRD
06-05-2010, 07:10 AM
Thanks Nike123 & Magoo. Do you mean -
kWr = Motor kWe x No. of motors x No. of running hrs ??

If above is correct, how about the efficiency of motors? Should this be considered at all?

nike123
06-05-2010, 08:08 AM
Thanks Nike123 & Magoo. Do you mean -
kWr = Motor kWe x No. of motors x No. of running hrs ??

Yep!



If above is correct, how about the efficiency of motors? Should this be considered at all? Everything is explained in link I posted!

GBRD
06-05-2010, 11:57 PM
Thank you all of you..