Equipment shelter internal heat load

[blackpotter]

My company often does the electrical design for cellular sites. Each site is unique in that they use different equipment and they may place the equipment on a roof, in a shelter, indoors or outdoors, etc.

I need some help in finding a way to calculate the cooling load of a shelter or equipment room housing the cellular equipment. I have no problem when the equipment manufacturer gives me the heat dissipation for that particular equipment but that information is not always easy to obtain. I don't want to be oversizing A/C equipment due to lack of information so I need to find a way to obtain the proper cooling load when I don't have the cellular equipment heat dissipation information.

Is there a preferred method used to calculate or measure the heat dissipation of the equipment in a space without having the specific heat dissipation values from the manufacturer?

I appreciate any suggestions.
Justin

 

[IRstuff]

Why can't you use the information you've gotten in the past to come up with an average value?



TTFN

 

[blackpotter]

IRstuff,

Thanks for the comment.

That is what we are basically left with doing. We can try using information we have gotten in the past and using past experience. The problem is that the cellular equipment is constantly changing with different configuration and we are working with a number of different carriers, which all use different equipment.

I am looking for the best way to calculate or go to the site and measure the heat load given off by the equipment during peak output. Sometimes, the only information we have about the equipment is the electrical input load but I know not all the electrical load is converted to heat.

Justin