In most of industries and offices water chiller is most electricity consuming component more than 25% of monthly electricity is used to operate chillers. So appropriate operation and regular maintenance of the building chillers should be come first. If chillers are operated or service un-systematically, it results in more energy costs, lesser equipment performance and less chiller life. While various factors cause to reduce chiller efficiency, the some of them is-poor conducting practices, neglect servicing, neglect cooling tower maintenance, and neglect alternate-fuel chillers.
Poor operating execution not only can lower the chiller working, but also equipment’s life. For Ex- one common execution is when trying to provide more cooling water to a facility is to raise the rate of chilled water flow through the water chiller. The belief is that with a more flow rate, more cooling water will be obtainable. In reality, however, increasing the flow rate through a chiller beyond the manufacturer set limit actually reduces the working of the chiller. Equally crucial is that flow rates more than those suggested increase the rate of abrasion in the chiller tube leads to tube failure.
Although good servicing sessions are important to the proper operation of all equipment, there are various sectors where this is obvious regular servicing of chillers. For Ex- Note the effect that good servicing can have on chiller performance. Most new, high efficiency centrifugal chillers bear a full-load performance rating of approx. 0.50 kW/ton. If that chiller is well maintained, in five years it can be expected to have a full-load performance of 0.50-0.60 kW/ton. Regular maintenance programme is a key to vital operation to keeping things in check, and saves you equipment’s.
Corrosion and Solutions
Most Water Chiller tubes are made of copper, and counter galvanic corrosion due to two metals are unlike. The corrosion and loss of carbon steel can affect the efficiency of the chiller due to poor water flow issues; this will ultimately lead to fissure of the tube .