PDA

View Full Version : Calculating KW



hookster
14-06-2007, 06:59 PM
If I have the tons/hour of a compressor how do I calculate the KW output of the compressor?

The MG Pony
14-06-2007, 07:16 PM
hunt down a program called convert, it does every thing and is very usefull!

Peter_1
14-06-2007, 08:55 PM
Or Uconeer

airconadam
14-06-2007, 09:19 PM
try this http://www.onlineconversion.com/power.htm

lana
15-06-2007, 07:27 AM
Hi there,

TON means [BTU/hr] / 12000

TONS /hr :confused:????

Also, TON or BTU/hr or kW can be converted to each other if they all represent thermal power. If you mean compressor electrical power (kW) then you can not convert thermal power to electrical one.

Cheers

Samarjit Sen
15-06-2007, 02:25 PM
3.420 kw ( Refrigeration Capacity ) = 1 Ton

lana
15-06-2007, 02:48 PM
3.420 kw ( Refrigeration Capacity ) = 1 Ton

hookster says TONS/HR ????

Samarjit Sen
15-06-2007, 04:07 PM
Hookstar has got confused with BThu/hr and TR (Tons) He might be under the impression that Tons is also per hour.

US Iceman
15-06-2007, 04:45 PM
Ton-Hour is a valid term, but it is used more often in thermal storage than normal refrigeration systems.

If you have a system with a 1 Ton capacity, that runs for 18 hours to maintain the temperature of some space, then you can say you have used 18 Ton-Hours to provide this cooling.

This type of terminology is helpful when working with thermal storage systems. You need to know the total cooling load on a per hour basis for the entire time cycle (168 hours per week or 24 hours per day).

You might consider this the total area under the curve for the load profile.

Samarjit Sen
15-06-2007, 05:21 PM
If I have the tons/hour of a compressor how do I calculate the KW output of the compressor?

Hello US Iceman,

I agree to what you have said and described. But what do you think Hookster meant by the above statement.

lana
15-06-2007, 05:38 PM
Hi everybody,

[TON.hr] is energy but TON is power, i.e. energy/time.
BUT he said TON/hr which I don't understand.

Cheers

US Iceman
15-06-2007, 06:15 PM
My guess is he is talking about one of two things...

1) he said kw output, which could imply heat rejection measured in kW.

2) Or, he is looking for a conversion of Tons to kW(R) (refrigeration capacity in kW)

It would help if he participated more in his own post???:(

Samarjit Sen
16-06-2007, 05:23 AM
Good Morning US Iceman, one thing that I have noticed is that it is very seldom that the original member who put a thread participated in his posts. All members are eager to help, but without further details or clarifications it becomes difficult.

US Iceman
16-06-2007, 03:38 PM
...it is very seldom that the original member who put a thread participated in his posts.


Well there is that, but some may feel intimidated by all of us jumping into the discussion too I suppose.:confused: They really should not let that prevent them from participating.

Peter_1
16-06-2007, 05:44 PM
This is what I call basic politeness

Alberto R.J.
23-07-2007, 05:31 PM
Hello. I want to know the power consumption of a small refrigerator. the specification sheet says the power output is 320 watts. I know that the power input depends on the efficiency of the motor and other components, but being conservative, is there a factor that would let me know it?
thanks

alberto

Peter_1
23-07-2007, 05:45 PM
Devide the output with 2 tot 2.2 and you have +/- the input for a refrigerator.

suny
04-08-2007, 05:33 PM
Hi Dear Moderators & Members

I would like to add my views to that of Samarjit, US Iceman & Peter_1. I have also noticed that the original person who put forward a post disappears after the first post. I hope you should address the original person along with the member you are giving suggestions counter suggestions which will encourage him to participating in the post.

With in a very short period of time becoming a member I was able post more & more posts because members like Samarjit, Lana, GM Pony, Viking, Monkey Spanners, Shanman, and TXiceman to name few called me saying “Hi Suny”. That encourage me and therefore I feel I am not isolated in the form and you all recognize me.

Even in this instance no body addressed hookster and you all were discussing the post among your selves, which isolated hookster. Therefore I would urge you all to address as Hi hookster & member’s name you want to address as an example even you quote his post.

Please do not think that I have put you all learned moderators & members an embarrassing situation. This is my personal experience I have gained from this valuable forum. Hope you all agree to my suggestion positively. Thank you for reading this.

Suny

sankar
17-07-2010, 01:31 PM
what is the use of ecconomiser expansion valve. If it is not working ,what happend? Anyone can explain deeply.

Peter_1
17-07-2010, 02:06 PM
Sankar, this is a complete wrong post: wrong section, wrong time, replied on a post of 3 years old, not enough information.
Nobody will read this..except me.:off topic:

vagee_arm
18-07-2010, 12:29 PM
If I have the tons/hour of a compressor how do I calculate the KW output of the compressor?
1ton=3.517kw
1ton=0.02Btu/mim

vagee_arm
18-07-2010, 12:30 PM
1ton=3.517kw
1ton=0.02Btu/min

ruedarodante
18-07-2010, 09:34 PM
Hi
How or where can I get the TECH Manual as check list?

Peter_1
19-07-2010, 06:43 AM
Ruedarodante, you're posting in a wrong section and replying with a new question.:off topic:
Where you can get this manual? Buy it from Gary.
But it's not a checklist and you can't use it as a checklist neither.

icecube51
19-07-2010, 06:44 PM
hey Peter,

it is fun to be stupid, let those boys play (LOL)

Ice

mohmmad ali
23-07-2010, 04:31 PM
i ,thank if comp.working 12 c to -15c
1ton/h = 1kw/h in out put only.