KA-03a
Version 2.0
Operational Optimization
Cleaning of Condensers and Recoolers
Refrigeration Technology
Measure Goal
The goal is to standardize the calculation of electricity savings that are triggered by cleaning condensers and recoolers to reduce the condensation temperature.
Symbols, Terms and Units
| Symbol | Description | Unit |
|---|---|---|
ΔE | annual electricity savings | kWh/a |
ΔEeco | cumulative electricity savings | kWh |
Pel | electrical power consumption | kW |
ΔTK | condensation temperature difference | K |
hB | annual operating hours | h/a |
Ns | standard effective duration | a |
Calculation Formulas
Annual Electricity Savings
ΔE = Pel × hB × 0.03 × ΔTK
The annual electricity savings result from the electrical power consumption, operating hours and temperature difference (approx. 3% savings per K).
Cumulative Electricity Savings
ΔEeco = ΔE × Ns
The cumulative electricity savings result from the annual savings multiplied by the standard effective duration.
Examples and Scenarios
Scenario A
Savings
Cleaning of a dirty condenser with 50 kW electrical power
22'500
kWh
Inputs
Elektrische Leistung: 50 kW, Betriebsstunden: 5'000 h/a, Temperaturreduktion: 3 K
Downloads
Documentation (PDF)
Complete technical documentation including calculation basis
Excel Calculator (XLSX)
Interactive calculation tool for savings
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