Get Chiller Data Collection Form (fact Sheet), Saving Energy In ... - Nrel

Efficiency: Chilled water systems also tend to be much more efficient than air conditioners, meaning they don't require as much energy to operate. Maintenance: Chilled water systems generally require less maintenance than their air conditioning counterparts, meaning you'll have to spend less time and money on upkeep.

As a rule-of-thumb, each 1°F increase in the chilled-water temperature reduces the energy consumption of the chiller by an amount from 1 percent to 1.5 percent.

Measuring chiller efficiency Mathematically, it's expressed as: COP = Cooling Capacity (watts) / Electrical Power Input (watts). A higher COP indicates better efficiency, so that more cooling is provided per unit of electricity consumed.

Maximum chillers efficiency is producing the greatest tonage at the lowest kilowatt usage. Maximum efficiency occurs with most chillers running at approximately 70-75 percent load and the lowest entering condenser water temperature (ECWT), based on design.

Product Manager For Industrial Chiller, Cold… Optimize equipment operation load. Experiments show that when the chiller operates at 70% to 80%, the power consumption per unit refrigerating capacity is smaller than that at 100% load. ... Provide a good power environment. ... Pipe scaling cleaning. ... Regular maintenance and repair.

Chillers consume more than 40% of the total energy used in the commercial and industrial buildings for space conditioning.

Chiller power consumption is typically calculated by multiplying the chiller's operating voltage by its operating current. This will give you the power consumption in watts, which can then be converted to kilowatts (kW) by dividing by 1000.

The efficiency of a chiller is usually measured by its COP (coefficient of performance). The COP is calculated by dividing the cooling output in watts by the power input in watts.