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Collector test method under quasi dynamic conditions according to the European Standard EN 12975-2

Fischer, S; Heidemann, W; Müller-Steinhagen, H; Perers, Bengt LU ; Bergquist, P and Hellström, Bengt LU (2004) ISES Solar World Congress, 2001 In Solar Energy 76. p.117-123
Abstract
In April 2001 the new European Standard EN 12975:2000: ''Thermal solar systems and components--Solar Collectors'' was established. With the publication of this European standard all national standards, related to the same topic, have to be withdrawn by the nations of the European Community. Now only one standard for testing solar collectors is valid throughout Europe.This European Standard specifies test methods for validating the durability, reliability and safety requirements for liquid heating collectors. The standard also includes two alternative test methods for the thermal performance characterization for liquid heating collectors. Apart from the well-known test method under steady-state conditions according to ISO 9806-1, ISO 9806-3... (More)
In April 2001 the new European Standard EN 12975:2000: ''Thermal solar systems and components--Solar Collectors'' was established. With the publication of this European standard all national standards, related to the same topic, have to be withdrawn by the nations of the European Community. Now only one standard for testing solar collectors is valid throughout Europe.This European Standard specifies test methods for validating the durability, reliability and safety requirements for liquid heating collectors. The standard also includes two alternative test methods for the thermal performance characterization for liquid heating collectors. Apart from the well-known test method under steady-state conditions according to ISO 9806-1, ISO 9806-3 and ASHRAE 93-77 the EN 12975 permits a quasi-dynamic test method for the thermal performance characterization of solar thermal collectors.This paper presents the improved approach to outdoor performance testing of solar thermal collectors under quasi-dynamic test conditions. The test requirements and collector theory are closely connected to those long agreed on for steady-state testing, as described in the ISO and ASHRAE standards mentioned above. The most important effects for the all day performance of the collector are taken into account. The test method covers most collector designs on the market today (except ICS type). Only some correction terms are added to the basic collector models of the present steady-state test methods. Still this limited change will allow test data to be collected and used from whole days.An important fact is that the collector model used for the parameter identification is written so that the error in collector output power is minimized. Therefore an accurate long-term prediction of the collector performance can be an integral part of the test method, where the same collector model and parameters are used for both testing and prediction. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Solar Energy
volume
76
pages
117 - 123
publisher
Elsevier
conference name
ISES Solar World Congress, 2001
external identifiers
  • WOS:000188391600015
  • Scopus:0347028563
DOI
10.1016/j.solener.2003.07.021
language
English
LU publication?
yes
id
0345e7f5-37f2-4ecf-b6ba-3861ae6e37d5 (old id 1042991)
alternative location
http://www.ingentaconnect.com/content/els/0038092x/2004/00000076/00000001/art00290
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V50-49HSS84-2&_user=745831&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000041498&_version=1&_urlVersion=0&_userid=745831&md5=ddef85c318a3d035bf1261aa36b2f346
date added to LUP
2008-03-27 15:48:16
date last changed
2016-12-04 04:42:23
@misc{0345e7f5-37f2-4ecf-b6ba-3861ae6e37d5,
  abstract     = {In April 2001 the new European Standard EN 12975:2000: ''Thermal solar systems and components--Solar Collectors'' was established. With the publication of this European standard all national standards, related to the same topic, have to be withdrawn by the nations of the European Community. Now only one standard for testing solar collectors is valid throughout Europe.This European Standard specifies test methods for validating the durability, reliability and safety requirements for liquid heating collectors. The standard also includes two alternative test methods for the thermal performance characterization for liquid heating collectors. Apart from the well-known test method under steady-state conditions according to ISO 9806-1, ISO 9806-3 and ASHRAE 93-77 the EN 12975 permits a quasi-dynamic test method for the thermal performance characterization of solar thermal collectors.This paper presents the improved approach to outdoor performance testing of solar thermal collectors under quasi-dynamic test conditions. The test requirements and collector theory are closely connected to those long agreed on for steady-state testing, as described in the ISO and ASHRAE standards mentioned above. The most important effects for the all day performance of the collector are taken into account. The test method covers most collector designs on the market today (except ICS type). Only some correction terms are added to the basic collector models of the present steady-state test methods. Still this limited change will allow test data to be collected and used from whole days.An important fact is that the collector model used for the parameter identification is written so that the error in collector output power is minimized. Therefore an accurate long-term prediction of the collector performance can be an integral part of the test method, where the same collector model and parameters are used for both testing and prediction.},
  author       = {Fischer, S and Heidemann, W and Müller-Steinhagen, H and Perers, Bengt and Bergquist, P and Hellström, Bengt},
  language     = {eng},
  pages        = {117--123},
  publisher    = {ARRAY(0xa9caee8)},
  series       = {Solar Energy},
  title        = {Collector test method under quasi dynamic conditions according to the European Standard EN 12975-2},
  url          = {http://dx.doi.org/10.1016/j.solener.2003.07.021},
  volume       = {76},
  year         = {2004},
}