The studies involve measuring the flow (chilled water & process fluid if possible), differential temperature as
well as differential pressure across all the major chilled water heat exchangers to assess operating load on the
individual equipment. The overall operating load & refrigeration effect generated by various chillers is also
computed based on the physical measurements. The values are matched with the overall data to assess
gaps, distribution losses and identify potential savings / improvement areas.
The typical scope of the work covers
Measuring the flow of chilled water at the chiller inlet with non-contact ultrasonic transit time flow meter
Gauging temperature drop across the chiller with digital temperature indicator
Computing Overall Chilling Effect
Noting down / assessing average Chilling effect delivered by the system
Measuring the flow of chilled water for all the major consumers
Gauging temperature rise across the individual consumers
Computing Heat Load the individual consumers
Noting down the key other parameters like operating period, load variations
Assessing overall load on the chilling system
Analysing the performance and suggesting ways for improvement, as applicable
Submitting the report
A team of one engineer is deputed to carry out the studies and furnishing the report. The field visit is typically
for 5 to 6 hours; during which up to 8 measurements can be carried out depending upon initial preparations,
conditions of piping systems and support from the plant team.
Although not a part of regular assignment, the following parameters can also be also measured, if possible
and requested by the plant
Measuring the flow of the process fluid for the corresponding consumers
Gauging temperature drop for the individual consumers
Computing Process Heat Load the individual consumers and comparing the same with cooling water
load
Measuring the chilled water pressure at the inlet and outlet of the corresponding consumers
Computing pressure drop for the individual consumers
Measuring the chilled water pressure at various locations on the chilled water distribution network
Computing pressure drop across major sections of the chilled water network
Analysing the losses and suggesting ways for improvement, as applicable
Submitting the report
