The SEER in 3 steps
Step 1: Previous calculation
- Currently, energy efficiency for cooling units is usually given as EER (Energy Efficiency Ratio)
- This value is calculated at a fixed ambient or hall temperature of 35°C
- In reality, hall temperatures are usually well below 35°C, and fluctuate over the course of the year
- For this reason, for a realistic calculation of energy efficiency, it is necessary to ascertain the seasonal variation in ambient temperatures
Step 2: Record temperature values
- To create a temperature profile, firstly, comprehensive measurements were conducted in a range of factory halls across Germany
- From these measurement points (more than 60,000 in total), interpolation is used to represent the temperature profile for Germany
- From this profile, fluctuations in the seasonal pattern are readily ascertained
Step 3: International comparability
- As a “global player”, Rittal has set itself the target of enabling customers around the world to calculate their own potential energy savings.
- With this in mind, based on our findings, international temperature profiles have now been prepared as well
- Consequently, calculations can be made ...
- a) For every climate zone on the planet
- b) For your specific production case