Utility System Performance Studies
Chiller Performance Assessment — kW/TR, COP and System Efficiency Evaluation
Field-measured chiller performance assessment against engineering benchmarks — SPC (kW/TR), COP etc — to identify exactly where your chiller plant is underperforming and why.
What This Assessment Covers
A chiller performance assessment measures how your chiller plant is actually running today against the benchmarks it was designed. It's for plants where the chiller has never been independently measured since commissioning, or where something has changed: rising power bills, ageing equipment, or a suspicion that maintenance alone isn't fixing the problem.
Symptoms That Indicate Degraded Performance
- kW/TR rising over time, without a clear maintenance explanation
- Insufficient cooling at user end
- Compressor running hours creeping up for the same cooling load
- High condenser pressure readings on the panel
What You Get From the Study
Common Findings
Most degraded chiller performance traces back to one of a small number of causes: condenser fouling that's gone unaddressed between cleaning cycles, a chilled-water system that has drifted from its design delta-T, or a cooling tower that's no longer delivering the condenser water temperature the chiller was sized around. The assessment identifies which of these — or which combination — applies to your plant specifically.
Who This Is For
Utility managers and HVAC heads at pharmaceutical and process plants, energy managers preparing a business case for chiller replacement or retrofit, and plant heads who want an independent read before committing capital.
Frequently Asked Questions
What's a good kW/TR value for an industrial chiller?
A well-maintained screw chiller should typically operate at 0.65–0.75 kW/TR at design conditions. Values above 0.85–0.90 kW/TR usually indicate degraded performance worth investigating.
How long does an on-site assessment take?
Depends on the number of chillers and whether continuous logging is needed to capture a representative load profile — this is scoped during the initial conversation.
Do you assess the whole chilled-water system, or just the chiller?
Both, where relevant — chiller performance is directly coupled to cooling tower condition and chilled-water pumping, so those are reviewed as part of the same visit.
Is this different from routine preventive maintenance?
Yes. Maintenance keeps equipment running; this assessment independently measures how efficiently it's running against an engineering benchmark, which maintenance checklists don't typically capture.
Benchmark: chiller specific power (kW/TR)
Range shown: 0.55 to 1.00 kW/TR
Shaded band: 0.65–0.75 kW/TR, typical of a well-maintained screw chiller at design conditions.
Get your chiller assessed
Start with a conversation about your chiller plant — no commitment required.
Request an Energy Auditor call us at +91 63538 39739