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Rob White
14-03-2016, 01:18 PM
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I need someone to do a basic maths equation.

I am doing some revision and homework, a training
slide I have read gives an example for refrigerant charges.

......................................................

An example of the comfort cooling / heating equation or a room
cooled by an R1234ze split air conditioning system with a ceiling
mounted indoor unit is shown below:
• LFLR1234ze = 0.303 kg/m3
• h = 2.2 for ceiling mounted unit
• A = 9 m x 5.5 m = 49.5 m2
M = 2.5 x 0.3031.25 x 2.2 x √49.5

M = ??? kg.

......................................................

I know what the answer is, I have worked out the answer but it
differs from their answer and because they are doing the training
I am starting to doubt myself????????????? :o :confused:

So please do the simple equation above and post the answer.

No prizes, I just want conformation about my answer.........

Regards

Rob

.

frank
14-03-2016, 01:24 PM
.

I need someone to do a basic maths equation.

I am doing some revision and homework, a training
slide I have read gives an example for refrigerant charges.

......................................................

An example of the comfort cooling / heating equation or a room
cooled by an R1234ze split air conditioning system with a ceiling
mounted indoor unit is shown below:
• LFLR1234ze = 0.303 kg/m3
• h = 2.2 for ceiling mounted unit
• A = 9 m x 5.5 m = 49.5 m2
M = 2.5 x 0.3031.25 x 2.2 x √49.5

M = ??? kg.

......................................................

I know what the answer is, I have worked out the answer but it
differs from their answer and because they are doing the training
I am starting to doubt myself????????????? :o :confused:

So please do the simple equation above and post the answer.

No prizes, I just want conformation about my answer.........

Regards

Rob

.
Bit difficult Rob, as your M= line contains some funny number (0.3031.25) which I assume should be 0.303 x 1.25??

Rob White
14-03-2016, 01:37 PM
.

Thank you Frank.

You confirmed it for me, I'm not loosing it, just yet :D

I was doing a training slide from Real Alternatives sponsored by the IOR and
that was their equation.

Phew.............. I'm not mad :)

Cheers Frank treat your self to half of what you fancy and bill the IOR :D

Regards

Rob

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