How to calculate the efficiency of a chiller !By Imran

How to calculate the efficiency of a chille

How to calculate the efficiency of a chiller. Chillers are one of the largest energy consumers within a building and this has a big impact on operational costs. Therefore its important to monitor your chillers to asses the efficiency of the system and ensure optimal performance. So in this article we will look at how to calculate the efficiency of a chiller. Need to learn this in a hurry? Scroll to the bottom to watch the video tutorial. Calculating the efficiency of a chiller is fairly simple. It is measured in “COP” which stands for Coefficient Of Performance. The Coefficient of performance is just a ratio of the refrigeration effect produced by the chiller against the amount of electrical energy that went into the machine to produce this. Both units should be measured in Kilowatts (kW) lets have a look at how this is achieved. Take for example a chiller which is producing 2,500kW of cooling or 8,533,364BTU/h in metric units. The electrical power demand of the chiller to produce this is 460kW. The metric calculation would be: Mid ad 2,500kW / 460kW = 5.4 so the COP is 5.4. This means that for every 1kW of electricity you put into the machine, you will produce 5.4kW of cooling. The imperial calculation would be: First convert BTU’s to kW’s 8,533,364BTU/s / 3412.142 = 2,500kW 2,500kW / 460kW = 5.4 so the COP is 5.4. This means that for every 1kW of electricity you put into the machine, you will produce 5.4kW of cooling.