From Surf Wiki (app.surf) — the open knowledge base

European seasonal energy efficiency ratio

Eurovent standards for air conditioner performance depending on time of year

In Europe, the seasonal efficiency of refrigeration equipment, chillers and air conditioners is often rated by the European seasonal energy efficiency ratio (ESEER) which is controlled (among others) by the Eurovent Certification Company. A similar standard in the United States is the integrated energy efficiency ratio (IEER).

The ESEER is calculated by combining full and part load operating Energy Efficiency Ratios (EER), for different seasonal air or water temperatures, and including for appropriate weighting factors. These values are shown in the following table.

Partial load ratio	Air temperature (°C)	Water temperature (°C)	Weighting coefficients
100	35	30	3%
75	30	26	33%
50	25	22	41%
25	20	18	23%

The formula for ESEER can then be presented as follows: :ESEER = (EER@100% load × 0.03) + (EER@75% load × 0.33) + (EER@50% load × 0.41) + (EER@25% load × 0.23)

Eurovent publishes EER and ESEER values in its Directory of Certified Products together with cooling capacity and power input for standard conditions at full load for a wide variety of commercially available equipment.

UK Building Regulations Part L SEER

In the United Kingdom, a Seasonal Energy Efficiency ratio (SEER) for refrigeration and air conditioning products, similar to the ESEER but with different load profile weighting factors, is used for part of the Building Regulations Part L calculations within the Simplified Building Energy Model (SBEM) software, and are used in the production of Energy Performance Certificates (EPC) for new buildings within the UK and the European Union; both as part of the European directive on the energy performance of buildings (EPBD).

The formula for SEER can be presented as follows: :SEER = a (EER@25% load) + b (EER@50% load) + c (EER@75% load) + d (EER@100% load)

where a,b,c,& d are the load profile weighting factors relevant to the proposed application.

References

(2006). "Eurovent Paper: Effect of the Certification on Chillers Energy Efficiency". Eurovent.
[http://www.planningportal.gov.uk/uploads/br/BR_PDF_PTL_NONDOMHEAT.pdf] {{Webarchive. link. (2011-10-04 Department for Communities and Local Government: Non Domestic Heating, Cooling and Ventilation Compliance Guide)

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

heating,-ventilation,-and-air-conditioning

Want to explore this topic further?

Ask Mako anything about European seasonal energy efficiency ratio — get instant answers, deeper analysis, and related topics.

Research with Mako

Free with your Surf account

Content sourced from Wikipedia, available under CC BY-SA 4.0.

This content may have been generated or modified by AI. CloudSurf Software LLC is not responsible for the accuracy, completeness, or reliability of AI-generated content. Always verify important information from primary sources.

Report