Why AC appraised in Tons, Not in kW?
AC (Air-conditions and Refrigeration are constantly appraised in Tons.
Aeration and cooling systems are constantly evaluated in Tons capacityinstead of kW since Air conditioners are planned on the premise of amount of warmth expulsion from room, corridor or particular region. Amount of warmth is termed in Tons implies if a ventilation system can uproot 1000 kilocalories of warmth or 4120 kilojoules or 12000 BTU of warmth in an hour that AC evaluated as 1 Ton of AC since 1000 Kilocalories or 4120 kilojoules or 12000 BTU equivalent to one Ton of warmth. Additionally, this is the same case for cooler and icebox i.e. refrigeration framework.
Great to know:
BTU = British warm unit. An estimation of warmth, particularly, the measure of warmth expected to raise the temperature of a pound of water by 1°F.
Meaning of Ton
A Ton of refrigeration (RT) is roughly equal to 12,000 BTU/h or 3,516.8528 W or 4.7142Hp.
A Ton of refrigeration (RT) is a unit of force used to portray the warmth extraction capacity of ventilating and refrigeration types of gear. It is characterized as the warmth of combination consumed by dissolving 1 short ton of unadulterated ice at 0 °C (32 °F) in 24 hours.
What number of kW and HP are there in 1 Ton?
1 Ton = 3.5168525 kW = 4.714Hp
Clarification
1 Ton = 12,000 BTU/h
1 Watt = 3.412141633 BTU/h
1 Ton = 12,000/3.412141633 = 3,516.8528 Watts = 3.5168528 kW.
1 Ton = 3,516.8528 Watts = 3.516 kW.
Too
1 Ton = 3,516.8528W/746 = 4.7142798928 Hp →→→ (1 Hp = 746 Watts)
1 Ton = 4.714 Hp
How to change over Ton to Kw and the other way around?
One RT(Refrigeration Ton) = 3.5168528 kW…
1 RT = 3.5168528 kW
1 kW = 0.284345 RT(Refrigeration Ton)
1 kW = 0.28434517 RT
Thus,
The force P in kW = Power P in RT (Refrigeration Ton) times 3.5168528… .
P(kW) = P(RT) × 3.5168528
Case
Change over 3 Ton AC into kW i.e. Change over 3 RT to kW.
Arrangement:
P(kW) = 3 RT × 3.5168528
P(kW) = 10.55 kW
3 Ton AC = 10.55 kW
The amount Current in Ampere will a 2 Tons AC attract Single Phase and Three Phase System?
Assume, There are 230V and Power factor = Cosθ = 0.95 in Single Phase AC framework…
1 Ton = 3,516.8528 Watts = 3.516 kW.
2 Ton = 2 x 3.516 kW = 7.032kW = 7032W
Power in a Single Phase AC System
P = VxI Cosθ and current…
I = P/(V x Cosθ)… .. Where Cosθ = Power factor
I = 7032W/(230V x .95)
I = 32.18 A
In this manner, a 2 Ton AC (Air-condition in Single Phase AC framework will take 31.18 Ampere Current
Andin Three Phase System
Assume, There are 440V and Power factor = Cosθ = 0.85 in Three Phase AC framework…
Power in a Three Phase AC System
P =√3 x VLxIL Cosθ and current… .
I = P/( √3xVxCosθ)
I = 7032W/(1.732 x 440V x .85) Where Cosθ = Power factor and √3 = 1.732
I = 10.855 A
In this manner, a 2 Ton AC (Air-condition in Three Phase AC framework will take 10.855 Ampere Current
Great to Know:This is just count taking into account Electrical recipes. In genuine, Air conditioner current depends a ton on working conditions, for example, surrounding temperature, refrigerant weight, Energy Efficiency Ratio (EER) and so on for case, if EER is 6, then info power for 2 Tons Air conditioner is 24000BTU/6 = 4000 watts..
On the off chance that this is a 230 volt framework, then ventilation system load current would be = 4000/(230x.95) = 18.5 A
For More detail… Check the Air conditioner Name plate rating.
Another comparative rating is Coefficient of force (COP) which is the yield power in watts isolated by info power, so with a COP = 1.8, for case, information power for 2 Tons Air conditioner is 7032W/1.8 = 3906 watts. Presently you can discover current by utilizing the above strategy which is equivalent to 18A approx.
What number of 2 Ton A.C (Air conditioner) would I be able to keep running on a 25 kVA Generator?
2 Ton = 2 x 3.516 kW = 7.032kW = 7032W
The Efficiency of Utility Power Generator is 90% roughly.
Effectiveness of Generator = 25kVA x (90/100) = 22.5kVA
Presently the Number of 2 Ton AC (Air conditioners) which you can keep running on a 25 kVA Generator easily..
22.5kVA/7032W
= 3
So you can run Three Air conditioners of 2 Tons each on a 25kVA Generator.
What is the suitable rating of MCB for 2 Ton and 1 Ton AC (Air conditioner) and why?
As we have ascertained the heap current for 2 Ton AC Air conditioner…
Ascertained Current for 2 Ton A.C = I = 32.18 A
Presently 40A Class "C" MCB (smaller than expected electrical switch) would be suitable for 2 Ton AC (aerate and cool) on the grounds that in beginning time it takes more present of the full load current
What's more, 20 A Class "C" MCB would be better for 1 Ton AC (cool)
Great to Know:
Class "'C' Type MCBs
Class "C" Type MCBs are suitable for establishments with high inrush of current at the beginning exchanging time. as it were, hardware and gadgets having inductive loads, for example, aeration and cooling systems.
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