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Analysis of building electric energy consumption data using an improved cooling degree day method
Krese, Gorazd (Author), Prek, Matjaž (Author), Butala, Vincenc (Author)

URLURL - Presentation file, Visit http://www.dlib.si/details/URN:NBN:SI:doc-WQBWMOH4 This link opens in a new window

Abstract
In cases where a quick insight into the operation of an HVAC system is more important than accuracy, cooling degree days can be used for monitoring electric energy consumption dependent on meteorological conditions. Cooling degree days are calculated from differences between outdoor temperatures above the base temperature and the base temperature itself, therefore containing both climate and building information. The difficulties in applying this method are the determination of base temperature and choosing a procedure for calculating degree days, which vary depending on the resolution of the weather data used. In addition, the cooling degree method has a major flaw, i.e. it considers only a linear dependence between cooling energy consumption and sensible cooling load, thereby ignoring latent loads, which become more significant at higher outdoor temperatures. In this article an analysis of real electric energy consumption data using the cooling degree method and an improved method derived from it that includes latent loads, as well as a comparison between them, are shown. Both methods are applied several times to metered data, each time with a different combination of a method for determining base temperature and a degree day calculation technique.

Language:English
Keywords:building electric energy consumption, cooling degree day, base temperature, latent load, wet-bulb temperature
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Year:2012
Publisher:= Association of Mechanical Engineers and Technicians of Slovenia et al.
Number of pages:str. 107-114, SI 21
Numbering:Vol. 58, no. 2
UDC:697.1:697.97
ISSN on article:0039-2480
DOI:10.5545/sv-jme.2011.160 Link is opened in a new window
COBISS.SI-ID:12215835 Link is opened in a new window
Views:814
Downloads:251
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Record is a part of a journal

Title:Strojniški vestnik
Shortened title:Stroj. vestn.
Publisher:Zveza strojnih inženirjev in tehnikov Slovenije [et al.], = Association of Mechanical Engineers and Technicians of Slovenia [et al.]
ISSN:0039-2480
COBISS.SI-ID:762116 This link opens in a new window

Secondary language

Language:Slovenian
Title:Analiza rabe električne energije stavbe z izboljšano metodo s temperaturnim presežkom
Keywords:raba električne energije stavbe, temperaturni presežek, bazna temperatura, latentne obremenitve, temperatura mokrega termometra

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