How to calculate the Airconditioner capacity for a standard
telecom BTS shelter?
Answer Posted / suraj.dahiya
Genarally 1 Ton capacity means---The cooling produced by
melting of 1 ton of ice in a day is.taken as unit of
refrigeration (in tons). Now unit of refrigeration used in
S.I. System is KW. 1 ton of refrigeration = mass of ice x
latent heat of ice / 24 hrs i.e
= 900 kg x 335 KJ/Kg ( one short ton = 900 kgs )
---------------------
24 x 3600 secs
= 3.4895 KJ/Sec Now we should convert KJ to KW i.e 1KJ=1KW
so 3.5 KJ / Sec = 3.5 KW
that is 1 ton of refrigeration = 3.5 KW
Always in telecom sheleters we shold take the load of BTS
For Ex: In shelter there are 4Nos of BTS,If each BTS is
consuming 20A the total Amps for 4BTS is 80A.
So The total Load of the BTS is P=VI i.e
P=230*80=18400Watts i.e 18.4KW Now each 1Ton =3.5KW we can
suggest for 5Ton of AC for 18.4 KW
plus surface area of BTS shelter suppose (9feet*6 feet)=54
sqft area.
required temp =54*25=1.350 kw
so total kw = 18.4+1.350=19.7KW
total Tr. required to cool the shelter @25 C =19.7/3.5
=5.6 Tr. AC required
Is This Answer Correct ? | 2 Yes | 5 No |
Post New Answer View All Answers
For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?
can u give me a brief idea about power line carrier communication ??
our factory is going under construction mean time transformer 1000 kva 2 nos &load break swithch 12 kv & 4 nos 750 kva 2 nos & 380 kva 2 nos generator to be errcted.how to arrange earth pits &how to earth connect & neutral pit how to calculate in earth bit size.
how does directional relay work incase of ac ?
How may I get the maximum current capacity for a particullar size Alluminum or Copper cable if there is compulsion to use?
what is the function of bearing in dc mchine" and where it is placed
what is a bus post insulator? explain its application in a substation.
describe the constructional features of an auto transformer and its principle operation
What will be the impact on motor performance if a LT motor is rewound with changed motor winding data as given below:- Original winding data: total 04 wires = 02 wires of 17 SWG + 02 wires of 16.5 SWG. Changed Winding data: total 03 wires of 15.5 SWG wire size Motor rating: 160KW, 740RPM, 415V, ID FAN application. Normal Running Current = 95% of FL Current.
what is the importance of Partial Dischage test for Electrical Equipments
What is the purpose of using busbar mounting fuse?
What are :- AC Distribution Board (Single & Double Front) DC Distribution Boards Distribution Board LT Breaker Panel.
Can double compression glands be used with regular cables?
What is the polarization index value ? (Pi value)and simple definition of polarization index ?
How equivalent impedance is calculated in thevenin theorem?