Energy Efficiency Ratio or EER is a parameter which determines the utilization of
input power supply to cool the room. Every consumer looks for better utilization of
input power supply as it will help to reduce the electricity consumption and hence
bill. EER of AC is a ratio of Cooling Capacity to the input power supply consumed.
Different STAR rating of AC has different value of Energy Efficiency ratio.
Refer to the table below for relation between STAR rating and EER for Jan 1, 2014
to Dec 31, 2015 and answer the question given below:
1)what does this information mean to a consumer?
2) For 1 Ton AC, the cooling capacity is 12000 BTU/hr.
(a) Find the cooling capacity of 1 Ton AC in terms of Watt.( 1 BTU = 1055 Joule)
(b) If the 1 Ton AC has 5 Star rating, hat is the electrical power consumed by the
AC.
Answers
Answer:
It’s chilling summer and most of us might be planning to purchase AC and doing internet research. But the main thing which comes to our mind is the power consumption of AC. As this have a significant effect on our pocket. This post outlines, EER (Energy Efficiency Ratio), ISEER (Indian Seasonal Energy Efficiency Ratio) and the method to calculate the power consumption of 1.5 ton AC in terms of kWh or Unit.
For the sake of calculation of energy / power consumption of AC, we will take 3 STAR, 1.5 ton Split AC as reference. But the method is well applicable for 1 Ton or other tonnage of Window / Split AC. The very first thing is to note down the details provided on the name plate of AC. Following parameters should be noted from the name plate:
Cooling Capacity
EER / ISEER
Inverter AC / Non-Inverter AC
Let’s first discuss each of these parameters in brief.
Cooling Capacity:
Cooling Capacity of AC is defined as the amount of heat energy removed from room. It is given in terms of BTU / hour. BTU stand for British Thermal Unit and it is defined as the amount of heat energy required o raise the temperature of 1 pound of water by 1 degree Fahrenheit. If you calculate this, you will find that
1 BTU = 1055 Joule (Approx)
Answer:
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