CSA B212-2000 Energy utilization efficiencies of oil-fired furnaces and boilers (Second Edition General Instruction No 1 October 2000).pdf

1、B212-00(Reaffirmed 2010)Energy utilization efficiencies of oil-fired furnaces and boilersGeneralInstruction No. 1B212-00October 2000Title: Energy Utilization Efficiencies of Oil-Fired Furnaces and BoilersPagination: 64 pages (ix preliminary and 55 text), each dated October 2000For information about

2、updates to this CSA publication, please complete and return the attached card.Cut along dotted lineName Organization Address City Province/State Country Postal/Zip Code E-mail B212-00B212-00Energy UtilizationEfficiencies of Oil-FiredFurnaces and BoilersPublished in October 2000byCSA International178

3、 Rexdale BoulevardToronto, OntarioCanadaM9W 1R3ISBN 1-55324-185-1Technical Editor: Mike DoddManaging Editor: Gary BurfordAdministrative Assistant: Elizabeth HopeDocument Processors: Hematie Hassan/Indira KumaralaganEditors: Maria Adragna/Samantha Coyle/Sandra Hawryn/Ann Martin/John McConnellGraphics

4、 Coordinator: Cindy KerkmannPublishing System Coordinators: Ursula Das/Grace Da Silva/Seetha RajagopalanSGML Project Manager: Alison MacIntosh CSA International 2000All rights reserved. No part of this publication may be reproduced in any form whatsoeverwithout the prior permission of the publisher.

5、 CSA International Energy Utilization Efficiencies of Oil-Fired Furnaces and BoilersiiiOctober 2000ContentsTechnical Committee on Oil Burning Appliance Standards viPreface viiiForeword ix1. Scope 12. Definitions and Reference Publication 12.1 Definitions 12.2 Reference Publication 43. Testing Condit

6、ions and Setup 43.1 Installation 43.1.1 Furnaces 43.1.2 Boilers 43.1.3 Direct Vent Systems 43.1.4 Thermocouple Grids 53.2 Fuel Supply Calorific Value 53.3 Burner 63.3.1 CO Reading and Fuel Input Rating 623.3.2 Flue 63.4 Furnace External Static Air Pressure 63.4.1 Measuring External Static Pressure 6

7、3.4.2 Required Value 63.4.3 Minimum Pressure for Furnace Testing 63.4.4 Combination Unit 63.5 Air Temperature Rise 63.5.1 Minimum and Maximum Values 63.5.2 Outlet Air Duct 73.5.3 Blower Speed 73.5.4 Condensing Furnaces 73.6 Boiler Water 73.6.1 Noncondensing Hot Water Boilers 73.6.2 Steady-State and

8、Heatup Testing 73.6.3 Steam Boiler Pressure 73.6.4 Outlet Water Temperature 73.6.5 Condensing Boilers 73.6.6 Return Water Temperature 73.7 Room Ambient Conditions 73.7.1 Installation of Thermocouples 73.7.2 Room Ambient Temperature 83.7.3 Air for Combustion and Draft Control 83.8 Automatic Vent Damp

9、ers Effectiveness Factor 83.9 Instrumentation Accuracy 83.9.1 Thermocouples and Readout Instrumentation 8B212-00 CSA InternationalivOctober 20003.9.2 Draft and Pressure Measurements 83.9.3 Vent and Flue Gas Analyses for CO 823.9.4 Fuel or Electrical Energy Consumption 83.9.5 Smoke-Measuring Instrume

10、nts 83.9.6 Time Measurement 83.9.7 Other Instruments 84. Testing and Measurements 84.1 Setup 84.2 Test Procedure 94.2.1 Steady-State Test 94.2.2 Flue and Draft Conditions 94.2.3 Room Temperature and Flue Gas Temperature 94.2.4 Fuel Input Rate and Steady-State Electrical Power 94.3 Flue Temperature M

11、easurements Cooldown Test 94.3.1 Furnaces 94.3.2 Boilers 104.4 Flue Gas Temperature Measurements Heatup Test 104.4.1 Furnaces 104.4.2 Boilers 114.5 Condensing Furnaces and Boilers 114.5.1 General 114.5.2 Direct Condensate Measurement 114.6 Draft Ratios 134.6.1 General 134.6.2 Direct Measurement of t

12、he R Factor 13VF4.6.3 Optional Method for Determining R and R for Systems Equipped with Power Burners or DirectF,T FInducers 144.6.4 Tracer Gas Measurement Procedure 144.7 Jacket Loss Measurement 154.7.1 Jacket Loss Test 154.7.2 Casing Surface 164.7.3 Casing Surface Temperature 165. Calculations of

13、Derived Results from Test Measurements 175.1 System Classification 175.2 Condensing Systems 175.3 Stoichiometric Ratio 175.4 Total Air Ratio 185.5 Average Sensible Heat Loss at Steady-State Operation 185.6 Steady-State Efficiency 185.7 Vent/Flue Gas Mass Ratio 195.8 Field Equivalent Vent Gas Tempera

14、ture 195.9 On-Cycle Time Constant 195.10 Effective Flue Gas Temperature Difference at Startup 195.11 Off-Cycle Time Constant 205.12 Effective Flue Gas Temperature Difference at Shutdown 205.13 Minimum Flue Gas Temperature Difference Above Room Temperature 205.14 Minimum Vent Gas Temperature Differen

15、ce Above Room Temperature 215.15 Effective Vent Gas Temperature Difference At Shutdown 215.16 Outdoor Air Correction Factor 225.17 Factor for Sensible Heat Loss During Burner On-Cycle 235.18 Factor for Sensible Heat Loss During Burner Off-Cycle 235.19 Factor for Infiltration Loss During Burner On-Cy

16、cle 24 CSA International Energy Utilization Efficiencies of Oil-Fired Furnaces and BoilersvOctober 20005.20 Factor for Infiltration Loss During Burner Off-Cycle 245.21 On-Cycle Time Constant Ratio 255.22 Off-Cycle Time Constant Ratio 255.23 Corrected Flue Gas Temperature Difference at Startup 255.24

17、 Corrected Flue Gas Temperature Difference at Shutdown 265.25 Corrected Flue Gas/Room Temperature Difference 275.26 Corrected Vent Gas Temperature Difference at Shutdown 285.27 Off-Cycle Sensible Heat Loss Integration Factors 285.28 Off-Cycle Infiltration Heat Loss Integration Factors 285.29 On-Cycl

18、e Sensible Heat Loss 285.30 Off-Cycle Sensible Heat Loss 295.31 On-Cycle Infiltration Heat Loss 305.32 Off-Cycle Infiltration Heat Loss 305.33 Latent Heat Loss Coefficient 315.34 Condensate Heat Loss 325.35 Energy Utilization Efficiency 335.35.1 Seasonal Energy Utilization Efficiency (SEUE) 335.35.2

19、 Annual Fuel Utilization Efficiency (AFUE) 345.36 Direct Condensate Measurement Calculations 345.37 Additional Requirements 355.37.1 Vent Damper Effectiveness 355.37.2 Ratio of Flue Gas Mass Flow During Off-Cycle to Flue Gas Mass Flow During On-cycle R 36F5.37.3 Ratio of Off-Cycle Flue Gas Mass Flow

20、 to On-Cycle Flue Gas Mass Flow at IdenticalTemperatures R 37F,T5.37.4 Ratio of Off-Cycle Vent Gas Flow to On-Cycle Vent Gas Flow at Identical Temperatures R 37V,T6. Published Ratings and Sampling Method 377. Minimum Efficiency Levels 377.1 Oil-Fired Furnaces 377.2 Oil-Fired Boilers 378. Marking 38T

21、able 39Figures 40B212-00 CSA InternationalviOctober 2000Technical Committee on Oil BurningAppliance StandardsM.F.C. Brooker Aero Environmental Limited, ChairMississauga, OntarioJ. Godfree Jeremy Godfree Product Design, Vice-ChairPugwash, Nova ScotiaR.B. Chauhan National Research Council Canada, Asso

22、ciateOttawa, OntarioL. Clare SET Industries Inc., AssociateKitchener, OntarioR. Greiss Natural Resources Canada, AssociateOttawa, OntarioE. Grzesik Ontario Ministry of Energy, Science (b) provide an explanation of circumstances surrounding the actual field condition; and(c) be phrased where possible

23、 to permit a specific “yes” or “no” answer.Committee interpretations are processed in accordance with the CSA Directives and guidelines governingstandardization and are published in CSAs periodical Info Update. For subscription details, write to CSA Sales Promotion,Info Update, at the address given

24、above. CSA International Energy Utilization Efficiencies of Oil-Fired Furnaces and BoilersixOctober 2000ForewordThe Canadian Standards Association, which operates under the name CSA International (CSA), providescertification services for manufacturers who, under license from CSA, wish to use the app

25、ropriateregistered CSA Marks on certain products of their manufacture to indicate conformity with CSAStandards.CSA Certification for a number of products is provided in the interest of maintaining agreed-uponstandards of quality, performance, interchangeability and/or safety, as appropriate. Where a

26、pplicable,certification may form the basis for acceptance by inspection authorities responsible for enforcement ofregulations. Where feasible, programs will be developed for additional products for which certification isdesired by producers, consumers or other interests.In performing its functions i

27、n accordance with its objectives, CSA does not assume or undertake todischarge any responsibility of the manufacturer or any other party. The opinions and findings of theAssociation represent its professional judgement given with due consideration to the necessarylimitations of practical operation a

28、nd state of the art at the time the Standard is processed.Products in substantial accord with this Standard but which exhibit a minor difference or a new featuremay be deemed to meet the Standard providing the feature or difference is found acceptable utilizingappropriate CSA Certification and Testi

29、ng Division Operating Procedures. Products which comply withthis Standard shall not be certified if they are found to have additional features which are inconsistentwith the intent of this Standard. Products shall not be certifiable if they are discovered to contraveneapplicable laws or regulations.

30、Testing techniques, test procedures and instrumentation frequently must be prescribed by the CSACertification and Testing Division in addition to the technical requirements contained in Standards ofCSA. In addition to markings specified in the Standard, the CSA Certification and Testing Division may

31、require special cautions, markings and instructions that are not specified by the Standard.Some tests required by CSA Standards may be inherently hazardous. The Association neither assumesnor accepts any responsibility for any injury or damage that may occur during or as the result of tests,wherever

32、 performed, whether performed in whole or in part by the manufacturer or the Association, andwhether or not any equipment, facility or personnel for or in connection with the test is furnished by themanufacturer or the Association.Manufacturers should note that, in the event of the failure of the CS

33、A Certification and Testing Divisionto resolve an issue arising from the interpretation of requirements, there is an appeal procedure: thecomplainant should submit the matter, in writing, to the Secretary of the Canadian StandardsAssociation.If this Standard is to be used in obtaining CSA Certificat

34、ion please remember, when making applicationfor certification, to request all current Amendments, Bulletins, Notices and Technical Information Lettersthat may be applicable and for which there may be a nominal charge. For such information or forfurther information concerning CSA Certification please

35、 address your inquiry to Applications andCustomer Service, CSA International, 178 Rexdale Boulevard, Toronto, Ontario M9W 1R3. CSA International Energy Utilization Efficiencies of Oil-Fired Furnaces and Boilers1October 2000B212-00Energy Utilization Efficiencies of Oil-Fired Furnaces and Boilers1. Sc

36、ope1.1This Standard specifies the methods for determining seasonal energy utilization efficiency (SEUE) andannual fuel utilization efficiency (AFUE) for (a) oil-fired furnaces having an input of up to and including 66 kW (225 000 Btu/h); and (b) boilers having an input of up to and including 88 kW (

37、300 000 Btu/h). The tests contained in this Standard are not intended to represent actual efficiencies realized in thefield. These tests provide a standardized method of comparing relative unit performance.1.2This Standard establishes minimum efficiency levels for oil-fired furnaces and boilers.1.3T

38、his Standard applies to the oil-fired portion of a combination or multifuel burning appliance.2. Definitions and Reference Publication2.1 DefinitionsThe following definitions apply in this Standard:Air shutter an adjustable device for varying the amount of primary air entering the burner(atmospheric

39、 and power types).Annual fuel utilization efficiency (AFUE) the ratio of annual output energy to annual inputenergy, which includes any non-heating-season pilot input loss and, for gas or oil-fired furnaces orboilers, does not include electric energy.Appliance (or unit) a furnace or boiler.Appliance

40、 outlet the opening provided in an appliance for the exhaust of the flue gases from thecombustion chamber.Barometric draft regulator or barometric damper (draft relief device) a device designed tomaintain a constant draft in a furnace or boiler.Calorific value (CV) or higher heating value (HHV) the

41、heat produced per unit of fuel whencomplete combustion takes place at constant pressure and the products of combustion are cooled to theinitial temperature of the fuel and air, and when the vapour formed during combustion is condensed. The calorific value is expressed in MJ/kg for liquid fuels.Conde

42、nsing furnace a furnace or boiler that is designed to condense part of the water vapour inB212-00 CSA International2October 2000the flue gases and is equipped with a means of collecting and draining this condensate.Cut-in the time or temperature at which a thermostat has acted to increase the energy

43、 or fuel inputto the burner to cause the heating action to commence.Cut-out the time or temperature at which a thermostat has acted to decrease the energy or fuelinput to the burner to a minimum.Design power rating the nominal power rating that a furnace or boiler manufacturer assigns to aparticular

44、 design, expressed in kilowatts.Direct exhaust system a mechanical appliance venting system supplied by or recommended by themanufacturer through which the products of combustion pass directly from the appliance to the outsideatmosphere, and that does not employ a means of draft relief (see Barometr

45、ic draft regulator).Direct vent system a system supplied by a manufacturer that provides the following:(a) all air necessary for combustion, either from the outdoors or from an unheated space, directly to afurnace or boiler; and(b) draft relief (if the unit is equipped with a draft control device) t

46、hat provides for discharge of all fluegases to the outside atmosphere.Excess air air that passes through the combustion chamber and the furnace flues in excess of thatwhich is theoretically required for complete combustion.Flue a conduit between the flue outlet of the furnace or boiler and the integ

47、ral draft diverter, drafthood, barometric draft regulator, vent terminal, or any other point of draft relief, ie,Flue damper a device installed upstream of the barometric draft regulator or vent terminal on a unitnot equipped with a draft control device, designed to automatically open the venting sy

48、stem when theappliance is in operation and to automatically close off the venting system when the appliance is onstandby.Flue gases all gases in the flue for the duration of combustion in the combustion chamber, includingreaction products, inert components, and any excess air.Flue gas losses the sum

49、 of sensible and latent heat losses above room temperature of the flue gasesleaving the appliance.Forced draft air forced into the combustion chamber by mechanical means.Indoor installation this includes units located within the structure that communicate with theheated space, such that jacket heat from the units is retained within the heated space and the air forcombustion and draft control comes from the