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UK domestic air conditioning: a study of occupant use and energy efficiency

Pathan, A.; Young, A.; Oreszczyn, T.; (2008) UK domestic air conditioning: a study of occupant use and energy efficiency. In: Proceedings of Conference: Air Conditioning and the Low Carbon Cooling Challenge. Network for Comfort and Energy Use in Buildings: London, UK. Green open access

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Abstract

This paper presents the results of a study of air-conditioning usage in homes in the southeast of England. First part of the study consisted surveying 13 dwellings with air-conditioning for a series of 4 week periods during the summer of 2004. The second part involved testing energy efficiency of “single-split” and “portable” air-conditioning units under “in-use” conditions. Data on usage patterns and typical temperature profiles during operation was collected and is presented here. Temperatures at which users switched their units on were, on average, 24-25oC, while typical running times for a single operation were found to be around 5 hours during daytime and 7 hours at night in bedrooms. The study also indicated high occupant satisfaction rates with split-units. An unexpectedly high overall energy efficiency ratio (EER), of 5-10, was found for the single-split unit tested during the relatively mild autumn weather. However, a very poor EER, of less than 1, was found for the portable unit tested. Further work is needed to increase the reliability and statistical significance of the results.

Type: Proceedings paper
Title: UK domestic air conditioning: a study of occupant use and energy efficiency
Open access status: An open access version is available from UCL Discovery
Publisher version: http://www.nceub.org.uk/index.php?pagename=Researc...
Language: English
Additional information: Paper presented at the Windsor 2008 Conference: Air Conditioning and the Low Carbon Cooling Challenge, Cumberland Lodge, Windsor, UK, 27-29 July 2008
Keywords: Domestic or residential air conditioning, energy efficiency ratio (EER), coefficient of performance, split system air conditioning
UCL classification: ?? BG ??
URI: http://discovery.ucl.ac.uk/id/eprint/15115
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