BTEN AIRCOOL

  • About Us
  • Wiring Diagram
    • Window air condenser wiring
    • Outdoor unit wiring diagram
    • PCB Wiring
    • Compressor wiring diagram
  • Revision Test Papers
    • HINDI
    • ENGLISH
  • Home
  • Voltage type relay
    • Refrigerant pressure readings
    • Refrigerant pressure
    • Float valve
  • Refrigeration
    • high side and low side system?
    • Ton Of Refrigeration
    • Revision test paper
      • R410a Refrigerant
  • Rotor Amps
    • Tons conversion calculator
  • TEMPERATURE-PRESSURE
  • Contact Us
BTEN AIRCOOL

Thursday, 21 December 2017

What is the meaning of BTU in air conditioners?

 Btenaircool Services     December 21, 2017     No comments   

(Q) What is "Ton of refrigeration" and how it has been derived ? 

Ans. The refrigeration capacity of a machine is expressed in "Ton of refrigeration." Because before the discovery of mechanical refrigeration system, refrigeration was produced by ice and its use was expressed in pounds or tons of ice required per unit of time, usually per day. The value of American ton in pounds by weight is 2000 pounds. Now considering the latent heat of fusion of ice is 144 B.T.U./lb. We can find the value of heat of American ton of ice in B.T.U.

Ton of Refrigeration                                = 2000 x 144
                                                            -------------------------
                                                              = 288000 B.T U./day 
                       
                                                                =2000 x 144
                                                             ---------------------------
OR                                                                 24
                                             
                                                             = 12000 B.T.U./hour.
                                                                   

                                                              =2000 x 144
                                                          ----------------------------
OR                                                              24x60

                                                                = 200 B.T.U./min.

In M.K.S. system the weight of one ton of ice is approximately 900 kilo grams and the latent heat of ice is 80 kilo calories/kg. Therefore, in M.K.S. system :

                              Ton of refrigeration = 900 x 80
                                                               = 72000 kilo calories/day

                                                               =72000    =    3000 kilo calories/hour
                                                            --------------
                                                                    24

                                                                 72000
                                                           ----------------
                                                                 24x60   =    50 kilo calories/minute

Ton of refrigeration" can be defined as it is an agent which can add or remove heat at the rat of 288000 B.T.U. or 72000 kilo calories per day.

(Q) How many B.T.U. of heat, one ton refrigerating machine can remove in an hour ? 

       Ans. 12000 B.T.U. /hour.

(Q) How many kilo calories of heat, one ton refrigerating machine can remove in an hour ?

        Ans. A refrigerating machine of one ton capacity can remove 3000 kilo calories of heat in an hour.

  • Share This:  
  •  Facebook
  •  Twitter
  •  Google+
  •  Stumble
  •  Digg
Email ThisBlogThis!Share to XShare to Facebook

Related Posts:

  • Hermetic Compressors When the compressor and motor operate on the same shaft and are enclosed in a common casing, they are known as hermetic sealed compressors. These ty… Read More
  • L R A ( Lock Rotor Amps ) HINDI What is LRA?  We discuss about LRA  this is the most important to know what is the LRA and how we know the TON of the compressor So L… Read More
  • Important Terms Suction pressure.  It is the absolute pressure of refrigerant at the inlet of a compressor.  Discharge pressure.  It is the absolute… Read More
  • Rotary Compressors:- In rotary compressors, the vapour refrigerant from the evaporator is compressed due to the movement of blades. The rotary compressors are positive d… Read More
  • How to Clean and Flush Air Conditioner Hindi … Read More
Newer Post Older Post Home

0 comments:

Post a Comment

More Info

  • What is the high side and low side of the refrigeration system?
    Q. What are the parts which divide the refrigeration system into low pressure side and high pressure side ?  Ans. Refrigerant c...
  • Outdoor wiring diagram
  • High-Pressure Washer- Hindi
  • 4 core cable wiring diagram( Hindi)
  • Ton Of Refrigeration - HINDI

Course Process

  • High side and Low side ?
  • Interview Questions
  • Lock Rotor Amps
  • Mechanical refrigeration
  • Refrigerant pressure readings
  • Refrigeration system
  • ServiceTool
  • Temperature-pressure
  • Voltage type relay
  • Wiring Diagram

Related Posts:

  • Gas charging ,R410A R22 R32 pressures, - HINDI
    This video is helping to know  identify the gas in the  air condition unit and what kinds of the pressure we will maintain to the ai...
  • Refrigerant pressure readings R-22, R-410A, R-290, R-417A
    R-22 Standing pressure              -                150 PSI Saction pressure                -                 60 TO 70 PSI Discha...
  • How to Identify Common / Start / Run on the t Compressor Terminal
    in 3 easy steps use the formula: - 1. common and start is equal to medium value 2. start and running is equal to high...
  • Formula for finding the piston displacement of a compressor
    Compressor can be calculated as follows:- Where:- V = Volume in cubic feet.  D = Diameter of cylinder in inches.  S = Length o...

Blog Archive

  • ►  2019 (1)
    • ►  January (1)
  • ►  2018 (35)
    • ►  July (2)
    • ►  February (2)
    • ►  January (31)
  • ▼  2017 (7)
    • ▼  December (7)
      • What is the high side and low side of the refriger...
      • Difference between mechanical system and Absorptio...
      • Ton Of Refrigeration - HINDI
      • What is the meaning of BTU in air conditioners?
      • Outdoor wiring diagram
      • Reasons for Choosing US
      • Air conditioning problems

ABOUT US

ABOUT US
Ramesh Kurup :- Hello friends welcome to our blog “ Bten aircool. This is Ramesh Kurup.I am a professional Air Conditioner technician. I work with Bten Aircool since 3 years. This company is located in Mumbai Maharashtra.

Featured post

Voltage type relay work ?

  • Privay Policy
  • Disclaimer
  • Contact Us

Copyright © 2025 BTEN AIRCOOL