Calling all HVAC technicians, LSU CM graduates, and Engineers
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Calling all HVAC technicians, LSU CM graduates, and Engineers
Posted by kingbob on 9/16 at 12:55 am
I am working on two problems for my Mechanical/Electrical class (Prof Spring) and my professor gave us two questions for homework that have little to no corresponding information in the notes or textbook readings that can help to solve it.

1. A 2 ton, air-cooled, DX window unit has a SEER of 14. If the unit operates for 1,800 hours during the summer, how many kWh of electricity will be used?

I know that for every ton of unit, it can cool approximately 12,000BTUH. I also know that 14 seer means it gets 14 BTUs/Watt of energy. the farthest I've gotten is 12,000 BTUH * 2 ton * 1800 hours = 43,200,000 BTU / 14 BTU/Watt / 1000 Watts/kW = 3086 kW

How do I proceed? Do I multiply back by the 1800 hours to get kilowatt hours?

2. How much space would be required for air handlers and the heating-cooling equipment for a 120,000 sf office building?

We simply have no information on this.



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Posted by The Boat on 9/16 at 12:57 am to kingbob
You have to convert it to gigawatts.


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Posted by kingbob on 9/16 at 1:01 am to The Boat
.003086 gigawatts
Ok, now what?



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Posted by The Boat on 9/16 at 1:02 am to kingbob
turn on your dvd player


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Posted by kingbob on 9/16 at 1:02 am to The Boat
but I have to get it up to 88 mph first!!!


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Posted by warrencromartie on 9/16 at 1:04 am to kingbob
The answer is 12.


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Posted by Carson123987 on 9/16 at 1:06 am to The Boat
quote:

You have to convert it to gigawatts.


quote:

turn on your dvd player




kingbob, good luck brah



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Posted by kingbob on 9/16 at 1:08 am to Carson123987
quote:

kingbob, good luck brah


Lucky for me, my flux capacitor is connected to my DVD player via some tinfoil held in place by chewing gum



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Posted by The Boat on 9/16 at 1:11 am to kingbob
Have y'all seen the guy driving a DeLorean around near LSU? It even has the Mr. Fusion on the back.

Is that Germans?



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Posted by Carson123987 on 9/16 at 1:12 am to The Boat
saw one on I10 on a trailer. thats it


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Posted by The Boat on 9/16 at 1:14 am to Carson123987
He was filling up at the Exxon at Highland and Lee.


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Posted by kingbob on 9/16 at 1:15 am to The Boat
quote:

He was filling up at the Exxon at Highland and Lee.


I thought where he was going he didn't need roads?

Also, when did Exxon start selling plutonium?



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Posted by dewster on 9/16 at 1:15 am to The Boat
There's one that is modified to look like the time machine that has been tooling around Baton Rouge.

I want that car.


This post was edited on 9/16 at 1:16 am

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Posted by jimbeam on 9/16 at 1:21 am to kingbob
This does not seem hard at all bob

This post was edited on 9/16 at 1:24 am

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Posted by djangochained on 9/16 at 1:31 am to jimbeam
Bob this is pretty basis stuff for a ME


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Posted by kingbob on 9/16 at 11:15 am to djangochained
quote:

Bob this is pretty basis stuff for a ME


Well, can you help me, then? I'm not an ME and this is something we
a. haven't covered in class
b. isn't in our book
c. isn't in our lecture notes
d. due tonight

I really need help.



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