How many tons of air conditioning is required per sq. ft. for a commercial (IT) space with a 12-13 foot ceiling height?
In India tonnage and BTU measurement as well as EER are quite different from the West. So to give an idea of how much tonnage your room requires,Calculate Area of your room, Take Sq root and divide the number by 10 to get equivalent tonnage. Eg- L= 13 B=10 so you have V=130 Sq.ft roomSqrt of 130 = 11.4 Divided by 10= 1.1Rounding off you'll need 1.1 ton AC. For a 180 sq.ft room it will be 1.3 Ton but round off to next figure - 1.5 Ton. Generally BTU rating and cooling capacity of AC is much more than required in case of 1 Ton models but that is compensated due to tropical weather in India.
I have to install an air-conditioning unit to a 2200 sq.ft. hall. What is the best for that size, split or central?
I will assume that you do not install AC units for a living.Ask for proposals from different HVAC companies. They will give their professional opinion after a survey of the place. The actual heat load of the building is important. For example, an occasion hall that has many people during the day for a few hours only, would be different from an open office space, with relatively few people. People who have done many installations will be able to help you get a reliable system.
What is the meaning of “ton AC”?
Ton of air conditioning has come from the use of ice for cooling /air conditioning. The amount of ice available was a measure of the amount of air conditioning which could be provided. In modern times, tonnage of an air-conditioning unit refers to the amount of ice the air conditioner can make in 24 hours from water at 0 C.Example : An air conditioner of 1 ton can make 1000 Kg of ice in 24 hours from water at 0 C.The latent heat capacity of ice : 334 KJthermal/KGSo for 1000 Kg it is : 334000 KJ thermalAmount of heat the air conditioner can withdraw in an hour : 334000/24 = 14000 KJ thermal
How much area is covered by 1 litre of paint?
Interior paints usually termed Emulsions have a coverage of about 80–100 sqft in 2 coats per litre.Exterior paints, typically have a coverage of 40 sqft in 2 coats per litre.Hope this helps.
Which size wire is used a in 1 ton, 1.5 and 2 ton split AC or window AC?
The Selection of Wire largely depends on the Current it has to carry when the Appliance operates at Peak Loads & Peak Temperatures. For ACs the Current Carried varies from Compressor Load, Equipment Health and Ambient Conditions, Internal Lubrication of Compressor etc. The Current drawn by AC is directly proportional to these parameters.The below mentioned figures are approximate figures and might vary for different OEMs and Star Ratings. However, you can always check the Rated Current Drawn by an AC in its Tech Specs.1 TR - 4 to 5.5 A1.5 TR - 6 to 7.5 A2 TR - 8 to 10 ANow, coming back to your question. Selecting the Wire. Some Consumer centric OEMs tend to give details such as Wire Size, MCB Rating etc in their datasheets. In Case it is not mentioned you can use Polycabs Chart for selecting appropriate Wire Size.Hope this Helps.
How many solar panels are needed to run a 1 ton air conditioner?
1 ton AC corresponds to a cooling capacity of 3517 watts.Assumption 1: Since AC is to be run by solar power, AC is taken as five star ratedEnergy Efficiency Ratio (EER) for 5 star AC = 3.1So the power input of the AC is given by 3517/3.1 = 1134.52 W.Assumption 2: AC runs for 8 hours per day with power requirement of 1134.52W.Total electricity consumption :- 1134.52*8 = 9076.16 WhConsidering the system to be energy self reliant, Battery is needed along with charge controller.Assumption 3: Lead acid Battery of 48V and efficiency of 90% is chosen and Charge controller of 95 % efficiency.So the total unit of electricity to be generated by solar panel = 10610 WhTotal Ah required = 10610/48 = 221.04 AhAssumption 4: Shortest sunshine hours available in that region is 4 hours . ( Taking the minimum condition)Value of current required:- 221.04/4= 55.26 AAssumption 5: 80 Wp solar panels of Voc= 24 V and Isc = 5A are to be used.11 solar panels of 80 Wp is to be connected in parallel (so as to make 55 A). Such sets are connected in series to make 48 V.So 22 solar panels of 80 Watt are required to run 1 ton AC throughout the year.NB* I have tried to make accurate calculation. Still some optimizations can be done depending on the Air Conditioner load curve and available solar sunshine. Kindly comment for corrections and improvements.
Will a 1.2 ton air conditioner be sufficient for a 168 square feet root?
Volume of target room: 14*12*11= 1848 cubic feet1 TR (ton of refrigeration) = 400 cfm (cubic feet minute)Hence, in one hour a 1.2 TR AC will circulate air of volume= 1.2*400*60 = 28800 cubic feet.Therefor in an hour 28800/1848= 15.58 cycles of complete exchange of air will take place. For a residential place, expected no of air change cycles is between 10 to 18. So, a 1.2 TR AC should be sufficient, considering it will be used in a residential space.
How many wind turbines could fit in 1 acre?
The density of wind turbines per unit of land area depends on many factors. Wind farms containing very large (1.5–2 megaWatt) turbines may have only one for every 25–50 acres. Smaller turbines can be more closely spaced.At either rate, the overall harvestable wind energy per unit of land at fully rated conditions (approx. 12 meters/sec wind speed), is generally in the range of 50 to 100 kW per acre.Designers of large wind farm projects carefully plan the layout of the turbines so that they have minimal impact on each other. This requires gathering lots of data about prevailing wind direction and velocity over the full cycle of seasons. Computer models use this information to determine the best (optimal) arrangement.
What wire is required for a 2-ton AC?
Here’s a picture of an air conditioner’s data tag that I took just today. This is a 2-ton air conditioner, as you can see from the model number. (You can see that, right?) Well, trust me.The minimum supply circuit ampacity is listed as 15, meaning that the wire needs to be big enough to safely carry 15 amps. That would normally be only 14 gauge copper wire.As you can see, we also need a circuit breaker somewhere from 20 amps to 25 amps.This is a new air conditioner, and fairly efficient. An older air conditioner might have different requirements, but you should be able to get those requirements from the air conditioner’s data tag.EDIT:In response to a comment (the comment thread here is interesting) I think that I should add an important bit of information here.For a standard split system air conditioner (in the U.S.A.) the overcurrent protection is built into the compressor motor. Meaning, the device that’s used to prevent too much current from flowing through the wire is built into the compressor motor. So the circuit breaker is only used for short circuit protection and ground fault protection.As you can see in the the data tag picture that I posted above, the manufacturer specifies that the minimum circuit ampacity is 15 amps. But the circuit breaker can be either 20 or 25 amps. Under most circumstances this wouldn’t be allowed, because the circuit breaker is too big to protect the wire. But for an air conditioner like this it’s OK, because the overcurrent protection is built into the compressor motor.To better demonstrate this point, here’s a shot from the installation instructions for a Panasonic air conditioner. You can see this document in full on page 17 at:http://ftp://ftp.panasonic.com/heatairconditioner/ke30nku/heatingandairconditioning_cs-ke30nku_cs-ke36nku-3_installation.pdfThis information is for a 2.5 ton and a 3 ton air conditioner. As you can see, for the smaller AC the manufacturer specifies a wire size of 12 gauge minimum and a breaker size of 35 amps. Normally, for 12 gauge copper wire you’d need a circuit breaker of no more than 20 amps. But with this air conditioner, overcurrent protection is built into the compressor motor, so the manufacturer specifies a different breaker size, which is only for short circuit protection and ground fault protection.