Chiller capacity calculation

How does a commercial chiller work? How to maximize chiller efficiency? What is a centrifugal water chiller?

Oversize the chiller by Ideal Size in Tons = Tons x 1. With this information, you can calculate chiller efficiency in terms of the energy efficiency ratio, or EER, and the coefficient of performance, or COP, for chillers.

Calculate the chiller capacity in tons of refrigeration. Most other chiller manufacturers cycle the compressor at less than loa which causes increased wear on the compressor and temperature instability. This means that for every 1kW of electricity you put into the machine, you will produce 5. For our example, we will calculate what size chiller is required to cool GPM (gallons per minute) from °F to °F? Use the following five steps and general sizing formula : 1. Step one is simply figure out the room size in square feet of the room you would like to keep cool. Next, figure out the amount of heat or heat load that the room receives.

Refrigeration or cooling capacity can be measured in tons.

For example, what size chiller is required to cool GPM from 72°F to 58°F? In addition, consult the factory when specifying a chiller with glycol or any fluid other than water. The electrical power demand of the chiller to produce this is 460kW. Simple instructions to assure proper cooling for your Industrial application. Measuring the ‘delta T’ requires a thermocouple or thermometer.

Check the water temperature of the water inlet line and the water outlet line, and subtract the numbers. This amount of heat could theoretically melt ton of ice in hours. The sensible heat in a heating or cooling process of air (heating or cooling capacity) can be calculated in SI-units as. One refrigeration ton is equal to 3. One kilowatt is equal to 0. So the power P in kilowatts (kW) is equal to the power P in refrigeration tons (RT) times 3. The SI units are watts (W). Another common unit is the ton of refrigeration, which describes the amount of water at freezing temperature that can be frozen in a day (hours).

Likewise, if your LWT is higher, say 60°F, you could specify a chiller with less capacity. The recirculation rate and the temperature drop across the cooling tower are the two pieces of data needed to calculate the amount of water lost from the open recirculating cooling system (due to evaporation). Following items will be discussed and calculated in this article : - Evaporation.

Cooling Tower Efficiency Calculations.

The efficiency of this cooling tower system depends on climatic conditions, in particular the wet-bulb temperature and the relative humidity of the ambient air. The required cooling tower design and size will be a function of following values. There can be multiple chillers in a chilled water plant.

This is can be used for chilled water and condenser water. Applicable to water cooled chillers and air cooled chiller. The cooling capacity of an air conditioning system is expressed in BTU's or tons.

Chillers , piping, pumps and. Qe will be lower than 95. TR and depends on the COP of the system.