SIST-TS CLC/TS 50594:2015

SLOVENSKI STANDARD
01-junij-2015
Sušilniki perila za komercialno uporabo - Metode za merjenje funkcionalnosti
Tumble dryers for commercial use - Methods for measuring the performance
Elektrische Waschgeräte für den kommerziellen Einsatz - Prüfverfahren zur Bestimmung
der Gebrauchseigenschaften
Ta slovenski standard je istoveten z: CLC/TS 50594:2015
ICS:
97.060 Aparati za nego perila Laundry appliances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION CLC/TS 50594

SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
April 2015
ICS 97.060
English Version
Tumble dryers for commercial use - Methods for measuring the
performance
Elektrische Waschgeräte für den kommerziellen Einsatz -
Prüfverfahren zur Bestimmung der
Gebrauchseigenschaften
This Technical Specification was approved by CENELEC on 2015-01-26.

CENELEC members are required to announce the existence of this TS in the same way as for an EN and to make the TS available promptly
at national level in an appropriate form. It is permissible to keep conflicting national standards in force.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. CLC/TS 50594:2015 E
CLC/TS 50594:2015 – 2 –
Contents Page
Foreword . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and symbols. 6
3.1 Terms and definitions . 6
3.2 List of symbols . 9
4 Requirements. 10
4.1 General . 10
4.2 Rated capacity . 11
4.3 Dimensions . 11
5 Test conditions, materials, equipment and instrumentation . 12
5.1 General . 12
5.2 Ambient conditions . 12
5.2.1 Electricity supply . 12
5.2.2 Water supply . 12
5.2.3 Ambient temperature and humidity . 13
5.3 Test materials . 13
5.3.1 General . 13
5.3.2 Test load . 14
5.3.3 Detergent . 14
5.4 Equipment . 14
5.4.1 Equipment for normalization . 14
5.4.2 Equipment for conditioning the test load . 14
5.4.3 Equipment for wetting the test load prior to a test . 14
5.4.4 Equipment for measurement . 14
5.5 Instrumentation and accuracy . 15
6 Preparation for testing . 16
6.1 General . 16
6.2 Test specifications from manufacturers . 16
6.3 Installation of the tumble dryer . 16
6.4 Preparation of the tumble dryer for a test series . 17
6.5 Preparation of the tumble dryer for a test run . 17
6.6 Preparation of test loads. 17
6.6.1 General . 17
6.6.2 Pre-treatment of new test load items prior to use. 18
6.6.3 Requirements regarding the age of test load items . 18
6.6.4 Normalization of test load items . 18
6.6.5 Conditioning of test load items . 18
6.6.6 Test load composition . 19
6.6.7 Wetting . 21
7 Performance measurements – General requirements . 22
8 Tests for performance . 23
8.1 General . 23

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8.2 Test procedure for performance tests . 23
8.2.1 Test conditions, materials and preparation for testing . 23
8.2.2 Programme . 23
8.2.3 Test load . 24
8.2.4 Test procedure . 24
8.2.5 Validity of a test run . 24
8.2.6 Validity of a test series . 24
8.3 Measurements to determine water and energy consumption and
programme time . 25
8.3.1 General . 25
8.3.2 Procedure. 25
8.4 Measurements to determine condensation efficiency . 25
8.4.1 General . 25
8.4.2 Procedure. 25
8.5 Measurements to determine exhaust air volume . 26
8.6 Performance measurement at maximum exhaust duct pressure . 26
8.7 Measurement of the textile drying temperature . 26
9 Assessment of performance . 26
9.1 General . 26
9.2 Final moisture content of the load. 26
9.3 Total energy . 27
9.4 Corrected energy . 27
9.5 Corrected water consumption . 28
9.6 Corrected programme time . 28
9.7 Condensation efficiency . 29
9.8 Evaporation capacity. 30
9.9 Exhaust air volume . 30
10 Data to be reported . 30
Annex A (normative) Reference list . 31
Annex B (normative) Exhaust ducts for tumble dryer testing . 32
Annex C (informative) Flow diagrams . 37
Annex D (normative) Test report – Data to be reported . 39
Annex E (normative) Procedure to determine test load size where rated capacity
is not declared . 43
Annex F (normative) Flexible initial moisture content method . 44
Annex G (normative) Performance testing of steam heated tumble dryers . 46
Annex H (informative) Performance testing of gas heated tumble dryers . 54
Annex I (informative) Measurement of exhaust air volume . 55
Annex J (normative) Measurement of the textile drying temperature . 56
Bibliography . 58

Figure B.1 — Exhaust duct bend . 32
Figure B.2 — Exhaust duct Type 2 . 34
Figure C.1 . 37
Figure C.2 . 38
Figure G.1 — Schematic installation of the measurement equipment for steam heated
tumble dryers (Alternative 1). 48

CLC/TS 50594:2015 – 4 –
Figure G.2 — Schematic installation of the measurement equipment for steam heated
tumble dryers (Alternative 2). 50

Table 1 — List of symbols . 9
Table 2 — Specification of instruments . 16
Table 3 — Number of items in the test load for various test load masses . 19
Table 4 – Specifications for initial moisture content in the test load . 22
Table 5 — Specification for final moisture content of the test load after drying in
a cotton dry programme . 23
Table B.1 — Equivalent tube length of a 90° bend . 33
Table B.2 — Pressure drop values for different diameters and flows for a 15 m
long duct . 35
Table D.1 — Identification data . 39
Table D.2 — Test measurements . 40
Table D.3 — Test conditions and materials . 42
Table J.1 — Specification of temperature logger suitable for temperature
measurement for both washing and drying . 56
Table J.2 — Number of temperature loggers to be used during a textile drying
temperature measurement . 57

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Foreword
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