PAS 67-2008 Laboratory tests to determine the heating and electrical performance of heat-led micro-cogeneration packages primarily intended for heating ndwellings《主要用于住所采暖的热导微型热电联产.pdf

1、Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/02/2009 06:58, Uncontrolled Copy, (c) BSIPAS 67:2008Laboratory tests to determine the heating and electrical performance of heat-led micro-cogeneration packages primarily intended for heating dwellingsNO COPYING WITHOUT BSI PERMISSION EXCEPT

2、AS PERMITTED BY COPYRIGHT LAWBSI British Standardsraising standards worldwidePAS 67:2008 BRITISH STANDARDLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/02/2009 06:58, Uncontrolled Copy, (c) BSIPublishing and copyright informationThe BSI copyright notice displayed in this document indicate

3、s when the document was last issued. BSI 2008ISBN 978 0 580 64480 1ICS 97.100.99Publication historyFirst published October 2008Amendments issued since publicationDate Text affectedBRITISH STANDARD PAS 67:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/02/2009 06:58, Uncontrolled Copy,

4、(c) BSIContentsForeword ivIntroduction 11 Scope 22 Normative references 23 Terms and definitions 34 Abbreviations 65 Symbols 66 Micro-cogeneration packages, test modes and test regimes 96.1 Category of micro-cogeneration package 96.2 Composition of the micro-cogeneration package to be tested 96.3 Te

5、st modes and test regimes 116.4 Supplementary partial output tests 127 Test laboratory conditions adjacent to the micro-cogeneration unit 138 Records for future package surveillance 138.1 General 138.2 Manufacturer 138.3 Manufacturer and test laboratory 148.4 Test laboratory 149 Actions of the test

6、laboratory upon acceptance of micro-cogeneration package 1410 Testing principles 1410.1 Introduction 1410.2 Test fuels 1410.2.1 Second and third family gas 1510.2.2 Gas from a bespoke source 1510.2.3 Hydrogen 1610.2.4 Mineral oil 1610.2.5 Other liquid fuels, principally bio-oils 1610.2.6 Other fuels

7、, including unconventional fuel and solid fuel 1710.3 Introduction 1410.4 Measurement of energy output 1810.4.1 Space heating heat Qspace1810.4.2 Domestic hot water (DHW) QDHW1810.5 Electrical input and output Einand Eout2110.6 Case losses Qcase2210.7 Flue losses Qflue2310.8 Calculation of the energ

8、y content of the micro-cogeneration package at the beginning and end of individual tests (excluding DHW see 12.7) 2310.9 Energy balance 2410.10 Instrumentation and laboratory procedures 2411 Data to be recorded 2512 Test conditions 2612.1 Test sequence 2612.2 Full output test 2612.3 30% output test

9、2712.3.1 General 2712.3.2 Packages described as being suitable for continuous operation 2812.3.3 Packages described as being suitable for uni-modal operation 2812.3.4 Packages described as being suitable for bi-modal operation 2812.4 10% output test 2812.4.1 General 28 BSI 2008 iPAS 67:2008 BRITISH

10、STANDARDLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/02/2009 06:58, Uncontrolled Copy, (c) BSI12.4.2 Packages described as being suitable for continuous operation 2912.4.3 Packages described as being suitable for uni-modal operation 2912.4.4 Packages described as being suitable for bi-m

11、odal operation 2912.5 Supplementary test at other output values (optional) 3012.5.1 General 3012.5.2 Packages described as being suitable for continuous operation 3012.5.3 Packages described as being suitable for uni-modal operation 3112.5.4 Packages described as being suitable for bi-modal operatio

12、n 3112.6 Test for standby losses 3112.7 DHW only test 3312.7.1 CombiPK with hot water content less than 15 litres 3412.7.2 RegPK 3413 Declarations and test results 36AnnexesAnnex A (normative) Typical arrangements for micro-cogenerationpackages 44Annex B (informative) Method to determine case losses

13、 49Annex C (informative) Direct method of measuring the energy lossfrom exhaust gases and condensate 54Bibliography 56List of figuresFigure A.1 Space heating tests for HeatPK, CombiPK and RegPK packages 44Figure A.2 Domestic Hot Water (DHW) test for CombiPK packages with less than 15 litres storage

14、45Figure A.3 Domestic Hot Water (DHW) test for RegPK packages 46Figure A.4 Cross-section and plan of basic arrangement of Thin Film Temperature Resistance Devices used to determine the thermal condition of the DHW tank used for RegPK 47Figure A.5 Basic arrangement for the estimation of standing heat

15、 loss from the DHW Test Rig 48Figure B.1 Example of location of surface temperature points on component 52List of tablesTable 1 Relevant clause numbers for each test mode 11Table 2 Definitions of test regimes 12Table 3 Test modes for permitted supplementary partial output testsunder each regime 12Ta

16、ble 4 Maximum permitted measurement uncertainties 18Table 5 Positions and weighting factors for the evaluation of TContentDHW20Table 6 Permitted percentage discrepancy for Qbalance24Table 7 Summary of test conditions 26Table 8 Heating periods for continuous operation 30Table 9 Heating periods for un

17、i-modal operation 31Table 10 Heating periods for bi-modal operation 31Table 11 EU reference tapping cycle 35Table B.1 Example of calculation of mean surface temperature 52ii BSI 2008BRITISH STANDARD PAS 67:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/02/2009 06:58, Uncontrolled Copy

18、, (c) BSIResults TablesResults Table 1 PAS 67 Manufacturers declaration 37Results Table 2 PAS 67 Laboratory test results 38Results Table 3 PAS 67 Additional domestic hot water laboratory testresults (RegPk only) 39Results Table 4 PAS 67 Standby losses test result 40Results Table 5 PAS 67 Test result

19、s; Recording of control settings toachieve output results 41Results Table 6 PAS 67 Test results; Uncertainty of measurement 42Results Table 7 PAS 67 Test declaration 43Summary of pagesThis document comprises a front cover, an inside front cover, BSI 2008 iiipages i to iv, pages 1 to 56, an inside ba

20、ck cover and a back cover.PAS 67:2008 BRITISH STANDARDLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/02/2009 06:58, Uncontrolled Copy, (c) BSIForewordThis Publicly Available Specification (PAS) has been developed by the Energy Saving Trust in collaboration with the British Standards I ns

21、t it u t io n ( BS I). T h e t e ch n ic a l a ut h o rs h ip h as be e n undertaken by Gastec at CRE Ltd through a development process managed by the Energy Saving Trust, with sponsorship from the Department for Environment, Food, and Rural Affairs (DEFRA) through the Housing Energy Efficiency Best

22、 Practice Programme which is operated by the Energy Saving Trust. Acknowledgement is given to the following organizations that have been instrumental in the development of this specification.Building Research Establishment (BRE)Department for Communities and Local Government (CLG)Department for Envi

23、ronment, Food, and Rural Affairs (DEFRA)Energy Saving TrustGastec at CRE LtdHeating and Hotwater Industry Council (HHIC)Wider comments from other interested parties were invited by BSI. The expert contributions made by the individuals and organizations consulted in the development of this PAS are gr

24、atefully acknowledged.This Publicly Available Specification does not purport to include all the provisions that may be needed to form the basis of a contract. Users are responsible for its correct application.This Publicly Available Specification has been prepared and published by BSI, which retains

25、 its ownership and copyright. BSI reserves the right to withdraw or amend this Publicly Available Specification on receipt of authoritative advice that it is appropriate to do so. This Publicly Available Specification will be reviewed at intervals not exceeding two years, and any amendments arising

26、from the review will be published as an amended Publicly Available Specification and publicized in Update Standards.This Publicly Available Specification is not to be regarded as a British Standard.To comply with this specification, the user shall comply with all its requirements.Compliance with thi

27、s Publicly Available Specification does not in itself confer immunity from legal obligations.iv BSI 2008BRITISH STANDARD PAS 67:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/02/2009 06:58, Uncontrolled Copy, (c) BSIIntroductionThe purpose of PAS 67 is to determine by measurement, und

28、er a variety of load conditions, the data needed to calculate the energy performance of a micro-cogeneration package. It is restricted to packages whose function is the production of heat and electricity and whose control is by heat demand. The tests are designed to be reproducible.Micro-cogeneratio

29、n units (also known as micro combined heat and power units) require a substantially different test procedure from that for boilers, and the laboratory tests specified in PAS 67 have been designed to take account of these differences. The results obtained from testing to the requirements of PAS 67 ar

30、e not intended for use as a direct comparative assessment of micro-cogeneration packages. However, the results obtained from testing to the requirements of PAS 67 can be fed forward to procedures to calculate one or more indices of performance, such as an estimation of annual system energy requireme

31、nts and system efficiencies, which could be utilized as part of a heating system design and for comparative assessments. PAS 67 contains a number of testing modes and regimes (see Table 2) and manufacturers are cautioned to consider carefully how their packages are to be used when choosing the modes

32、 and regimes under which they wish their product to be tested. It is recommended that the units offered for test conform to all relevant directives prior to submission for testing in accordance with PAS 67. NOTE Attention is drawn to Directive 2004/8/EC on the promotion of cogeneration, which exclud

33、es micro-cogeneration units from the need to meet the minimum thermal efficiency requirements that are specified in the Hot-Water Boiler Directive, 92/42/EEC 1 (commonly referred to as the BED, the Boiler Efficiency Directive). BSI 2008 1PAS 67:2008 BRITISH STANDARDLicensed Copy: Wang Bin, ISO/EXCHA

34、NGE CHINA STANDARDS, 03/02/2009 06:58, Uncontrolled Copy, (c) BSI1 ScopeThis Publicly Available Specification (PAS) specifies a comprehensive set of test conditions for determining the heating and electrical performance of heat-led micro-cogeneration packages that are primarily intended for use in d

35、wellings. The PAS is suitable for testing those micro-cogeneration packages with a thermal output up to 70 kW (252 MJ/hr); the full output test may also be suitable for packages up to 400 kW (1440 MJ/hr).For the category of micro-cogeneration package that provides space and water heating in which th

36、e domestic hot water (DHW) is provided wholly from within the package (CombiPK), the DHW test conditions described in this PAS are only applicable for packages with less than 15 litres of water storage. For CombiPK packages with hot water storage of 15 litres or more, the DHW test has not been yet b

37、een developed and this will be considered for the next revision of the PAS. However, CombiPK packages with hot water storage of 15 litres or more can be tested using all other PAS 67 tests (full output, partial output and standby tests). The PAS results can be input to the procedure to calculate ann

38、ual energy performance, such as “Method to evaluate the annual energy performance of micro-cogeneration heating systems in dwellings” 2 which for these products, until the PAS is revised, treats the DHW load as additional space heating load. This enables the estimation of the annual energy performan

39、ce and derivation of the single index of performance for product comparison.A reporting format for the test results is also specified.NOTE PAS 67 is not intended to deliver an evaluation of the annual energy performance of a product directly, but provides the data from which it may be calculated. It

40、 is intended to produce test results and other information that can be used in a separate method of calculation of annual energy performance of the micro-cogeneration package. An estimate of annual energy performance is necessary for the SAP (The UK Governments Standard Assessment Procedure for Ener

41、gy Rating of Dwellings) 3 and other energy rating schemes. The document “Method to evaluate the annual energy performance of micro-cogeneration heating systems in dwellings” 2 specifies such a method. An extension of the annual energy performance method is used to derive a single index of performanc

42、e for product comparison, similar in principle to SEDBUK (Seasonal Efficiency of Domestic Boilers in the UK) 4 already used for boilers. 2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited appli

43、es. For undated references, the latest edition of the referenced document (including any amendments) applies.BS 845-1:1987, Methods for assessing thermal performance of boilers for steam, hot water and high temperature heat transfer fluids Part 1: Concise procedureBS 845-2:1987, Methods for assessin

44、g thermal performance of boilers for steam, hot water and high temperature heat transfer fluids Part 2: Comprehensive procedure2 BSI 2008BRITISH STANDARD PAS 67:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/02/2009 06:58, Uncontrolled Copy, (c) BSIBS 1566-1:2002, Copper indirect cyli

45、nders for domestic purposes Open vented copper cylinders Part 1: Requirements and test methods BS EN 13203-2:2006, Gas-fired domestic appliances producing hot water Appliances not exceeding 70 kW heat input and 300 litres water storage capacity Part 2: Assessment of energy consumption BS EN 304:1992

46、, Heating boilers Test code for heating boilers for atomizing oil burnersBS EN 437:2003, Test gases Test pressures Appliance categoriesBS EN 60751:1996, Industrial platinum resistance thermometer sensorsDirective 2004/8/EC of the European Parliament and of the Council of 11 February 2004 on the prom

47、otion of cogeneration based on a useful heat demand in the internal energy market and amending Directive 92/42/EEC. Directive 2004/108/EC of the European Parliament and of the Council of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility

48、and repealing Directive 89/336/EECEngineering Recommendation G83-1, Recommendations for the connection of small scale embedded generators (up to 16A per phase) in parallel with Public Low-Voltage Distribution NetworksUKAS M3003, Edn 2 2007, The Expression of Uncertainty and Confidence in Measurement

49、3 Terms and definitionsFor the purposes of this PAS the following terms and definitions apply:3.1 case lossheat lost from all surfaces (whether by radiation, natural or forced ventilation) of the micro-cogeneration package to the surroundings, including that from the flue pipe3.2 cogenerationsimultaneous generation in one process of thermal energy and electrical and/or mec