1、 4100 N. FAIRFAX DR., SUITE 200 ARLINGTON, VIRGINIA 22203 2004 STANDARD for PERFORMANCE RATING OF CENTRAL SYSTEM HUMIDIFIERS Standard 610 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permitted without license
2、 from IHS-,-,-Price $10.00 (M) $20.00 (NM) Copyright 2004, by Air-Conditioning and Refrigeration Institute Printed in U.S.A. Registered United States Patent and Trademark Office IMPORTANT SAFETY DISCLAIMER ARI does not set safety standards and does not certify or guarantee the safety of any products
3、, components or systems designed, tested, rated, installed or operated in accordance with this standard/guideline. It is strongly recommended that products be designed, constructed, assembled, installed and operated in accordance with nationally recognized safety standards and code requirements appr
4、opriate for products covered by this standard/guideline. ARI uses its best efforts to develop standards/guidelines employing state-of-the-art and accepted industry practices. ARI does not certify or guarantee that any tests conducted under its standards/guidelines will be non-hazardous or free from
5、risk. Note: This standard supersedes ARI Standard 610-1996. Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE OF CONTENTS SECTION PAGE Section 1. Purpose1 Section 2. Sc
6、ope.1 Section 3. Definitions 1 Section 4. Symbols and Constants.2 Section 5. Classifications.5 Section 6. Test Requirements 5 Section 7. Rating Requirements.6 Section 8. Minimum Data Requirements for Published Ratings .7 Section 9. Operating Requirements .7 Section 10. Marking and Nameplate Data .8
7、Section 11. Conformance Conditions 8 TABLES Table 1. Classification of Central System Humidifiers 5 APPENDICES Appendix A. References - Normative 9 Appendix B. References - Informative.9 Appendix C. Methods of Test for Central System Humidifiers - Normative 10 Appendix D. Method of Measuring Airflow
8、 Rate of By-pass Humidifiers - Normative.23 Appendix E. U.S. Method of Calculating Energy Consumption - Normative.24 Appendix F. Method of Calculating Energy Efficiency - Normative27 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reprodu
9、ction or networking permitted without license from IHS-,-,-TABLES FOR APPENDICES Table C1. Nozzle Discharge Coefficients .10 Table C2. Temperature Factor.11 Table E1. Heating Seasonal Performance Factor (HSPF).24 Table E2. Annual Fuel Utilization Efficiency (AFUE).25 FIGURES FOR APPENDICES Figure C1
10、. Return Air or Supply Air (Duct or Plenum) Test Section 14 Figure C2. By-pass (Supply-to-Return) Test Section.15 Figure D1. By-pass (Supply) Humidifier Test Section for Airflow Rate Measurement .23 Figure D2. By-pass (Return) Humidifier Test Section for Airflow Rate Measurement.23 Figure E1. U.S. R
11、egional Factors for Adjusting the Humidity Loads of the Respective Region.26 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ARI STANDARD 610-2004 1 PERFORMANCE RATING OF
12、CENTRAL SYSTEM HUMIDIFIERS Section 1. Purpose 1.1 Purpose. The purpose of this standard is to establish for Central System Humidifiers: definitions; symbols and constants; classifications; test requirements; rating requirements; minimum data requirements for Published Ratings; operating requirements
13、; marking and nameplate data; and conformance conditions. 1.1.1 Intent. This standard is intended for the guidance of the industry, including manufacturers, engineers, installers, contractors and users. 1.1.2 Review and Amendment. This standard is subject to review and amendment as technology advanc
14、es. Section 2. Scope 2.1 Scope. This standard applies to factory-made Central System Humidifiers, as defined in Section 3. 2.1.1 Energy Source. This standard applies to electrically operated Central System Humidifiers that depend on the air stream of a central air system for moisture evaporation and
15、 distribution. 2.1.2 Installation. Central System Humidifiers are intended for installation in central air systems. 2.2 Exclusions. This standard does not apply to the following: 2.2.1 Self-contained humidifiers as defined in ARI Standard 620. 2.2.2 Portable humidifiers as defined in AHAM HU-1. 2.2.
16、3 Humidifiers for commercial and industrial applications as defined in ARI Standard 640. Section 3. Definitions All terms in this document follow the standard industry definitions in the current edition of ASHRAE Terminology of Heating, Ventilation, Air Conditioning and Refrigeration unless otherwis
17、e defined in this section. 3.1 Humidification Capacity. The capacity associated with a Central System Humidifiers ability to add moisture to air expressed in gal/day L/day of continuous operation. 3.2 Humidifier. A device designed to add moisture to air. 3.2.1 Central System Humidifier (Humidifier).
18、 A class of Humidifier intended to be installed into the air stream of a central air system. It may be mounted in or on one of the following: a. Return air duct b. Return air plenum c. Supply air duct d. Supply air plenum e. By-pass (supply to return) f. Heating or cooling central air system Copyrig
19、ht Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ARI STANDARD 610-2004 _ 2 3.3 Humidistat. A device that regulates moisture input by responding directly or indirectly to changes in
20、 the moisture content of the air. 3.4 Published Rating. A statement of the assigned values of those performance characteristics, under stated Rating Conditions, by which a unit may be chosen to fit its application. These values apply to all units of like nominal size and type (identification) produc
21、ed by the same manufacturer. The term Published Rating includes the rating of all performance characteristics shown on the unit or published in specifications, advertising or other literature controlled by the manufacturer, at stated Rating Conditions. 3.4.1 Application Rating. A rating based on tes
22、ts performed at application Rating Conditions (other than Standard Rating Conditions). 3.4.2 Standard Rating. A rating based on tests performed at Standard Rating Conditions. 3.5 Rating Conditions. Any set of operating conditions under which a single level of performance results and which causes onl
23、y that level of performance to occur. 3.5.1 Standard Rating Conditions. Rating Conditions used as the basis of comparison for performance characteristics. 3.6 Seasonal Performance Factor (SPF). A ratio of the total heat delivered over the heating season (not to exceed 12 months) to the total energy
24、input over the heating season. 3.7 “Shall“ or “Should“. “Shall“ or “should” shall be interpreted as follows: 3.7.1 Shall. Where “shall“ or “shall not“ is used for a provision specified, that provision is mandatory if compliance with the standard is claimed. 3.7.2 Should. “Should“ is used to indicate
25、 provisions which are not mandatory but which are desirable as good practice. 3.8 Standard Air. Air weighing 0.075 lb/ft31.2 kg/m3 which approximates dry air at 70F 21C and at a barometric pressure of 29.92 in Hg 101.3 kPa. 3.9 Supplementary Heat. Heat used to enhance evaporation when used in the re
26、circulating system or to heat the water for direct evaporation. Section 4. Symbols and Constants 4.1 Symbols. Symbols used in this standard are as follows: AFUE = Annual fuel utilization efficiency An= Nozzle throat area, ft2m2 At= Cross-sectional area of test section, ft2m2 Cn= Nozzle discharge coe
27、fficient c = Specific heat of water, Btu/lbF J/(kgK) Eb= Additional equivalent electric energy required by the furnace fan for by-pass type Humidifiers, in Wh/yr EF-E = Average annual electric furnace or electric resistance heating energy consumption, kWh/yr EF-G= Average annual furnace energy consu
28、mption, Btu/yr EF-HP= Average annual electric heat pump energy consumption, kWh/yr Es= Average annual supplementary electrical energy consumption, kWh/yr Ev= Average annual electric energy consumption to operate the Humidifier, Wh/yr F = Temperature correction factor HSPF = Heating seasonal performa
29、nce factor Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ARI STANDARD 610-2004 3 Hm= Humidification Capacity, gal/day L/day Hmh= Hourly humidification Capacity, lb/h L/h
30、 Ho = Hourly rate of energy output of a Central System Humidifier, Btu/h Hs = Water supply rate, gal/day L/day Ht= Waste water rate, gal/day L/day N = The representative average use cycle of humidifier operation, 700 hours per year for units with Humidistats, or 1600 hours per year for units without
31、 Humidistats. Pb= Barometric pressure, in Hg kPa Pn= Nozzle throat pressure, in Hg kPa Ps= Input power to the Humidifier when operating under full load conditions, W W pv= Velocity pressure at nozzle throat or static pressure difference across nozzle, in H2O Pa Qa= Airflow rate at test unit, cfm m3/
32、s Qan= Measured airflow rate at nozzle, cfm m3/s qb= Hourly rate of equivalent electrical energy input for by-pass Humidifiers, Btu/h Qb= Measured by-pass airflow rate, cfm m3/s Qo= Average annual energy output of the Humidifier in terms of heat of vaporization, Btu/year qo= Rate of energy output, e
33、quals heat of vaporization, Btu/h W qp= Rate of electrical energy input, Btu/h W Qs = Measured airflow rate of standard air at test unit, scfm standard m3/s Qw= Average annual energy lost in waste water from the humidifier housing or sump, Btu/year qw= Rate of waste water energy lost, Btu/h SPFE= Se
34、asonal Performance Factor of electric furnace or electric resistance heating = Air entering test unit dry-bulb temperature, F C = Air entering test unit wet-bulb temperature, F C = Air leaving test unit dry-bulb temperature, F C = Air leaving test unit wet-bulb temperature, F C = Return air wet-bulb
35、 temperature at Rating Conditions, F C = Return air wet-bulb, test temperature, F C tan= Air entering nozzle dry-bulb temperature, F C tout= Temperature of waste water used to dilute the concentration of non-evaporatives in the Humidifiers housing or sump, F C tr= Return air dry-bulb temperature at
36、Rating Conditions, F C tt= Return air dry-bulb test temperature, F C Vb= By-pass flow rate determined in accordance with Appendix D, cfm vn= Specific volume of air at dry-bulb and wet-bulb temperature conditions existing at nozzle but at standard barometric pressure, ft3/(lb of dry air) m3/(kg of dr
37、y air) = Specific volume of air at nozzle, ft3/(lb of moist air) m3/(kg of moist air) Vt= Air velocity in test section, ft/min m/s Other consistent units, such as lb/h kg/h may be used except when calculating energy consumption or efficiency. rt2at1atttvn2at1atCopyright Air-Conditioning and Refriger
38、ation Institute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ARI STANDARD 610-2004 _ 4 = Specific volume of air at dry-bulb and wet-bulb temperature conditions existing in test section, ft3/lb m3/kg = Specific volume of air
39、entering test section, ft3/lb m3/kg Wn= Specific humidity ratio of air at nozzle, (lb moisture)/(lb of dry air), (kg of moisture)/(kg of dry air) W1= Specific humidity ratio of air entering test section, (lb moisture)/(lb of dry air), (kg of moisture)/(kg of dry air) Ws1= Specific humidity ratio of
40、air at saturation at wet-bulb temperature entering test section, (lb moisture)/(lb of dry air), (kg of moisture)/(kg of dry air) Wsn= Specific humidity ratio of air at wet-bulb temperature at nozzle, (lb moisture)/(lb of dry air), (kg of moisture)/(kg of dry air) Ww= Waste water rate consisting of t
41、he water quantity determined in accordance with C5.6.2.4, over the time period of the test, lb/hr t = Waste water temperature rise, F C = Energy efficiency 4.2 Constants. Constants used in this standard are as follows: K1= 1096 1.414 K2= 0.075 1.200 K3= 1.000 0.264 K4= 368 28.5 K5= 1.250 0.733 K6= 1
42、.000 0.277 0.365 = Furnace fan power to operate by-pass type Humidifier, W/cfm 3.412 = Conversion factor to convert W to Btu/h 8.34 = Conversion factor to convert gallons of water to pounds of water 24 = Conversion factor to convert gallons of water to pounds of water 1060 = Heat of vaporization of
43、water in Btu/lb (Based on water temperature of 60F) 3412 = Conversion factor to convert kWh to Btu 1v1vCopyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ARI STANDARD 610-200
44、4 5 Section 5. Classifications Humidifiers within the scope of this standard shall be classified as shown in Table 1. Table 1. Classification of Central System Humidifiers Types of Central System Humidifiers Designation ARI Type Arrangement Horizontal duct - returning air to central air system Humid
45、ifier Central air system Return air duct RD Vertical duct returning air to central air system Humidifier Central air system Return air plenum RP Central air system Humidifier Horizontal duct delivering air from central air system Supply air duct SD Central air system Humidifier Vertical duct deliver
46、ing air from central air system Supply air plenum SP Horizontal / vertical duct - returning air to central air system Humidifier Horizontal / vertical duct delivering air from central air system By-pass (supply to return) SR Humidifier Central air system Heating or cooling unit HC Section 6. Test Re
47、quirements 6.1 Test Requirements. Published Ratings shall be verified by tests conducted in accordance with the test method described in Appendix C and at the rating conditions in Section 7. 6.1.1 Equipment. Humidifiers shall be tested using all components as recommended by the manufacturer. 6.1.2 Electrical Conditions. Nameplate voltages for 60 Hz systems are shown in Table 1 of ARI Standard 110. Nameplate voltages for 50 Hz systems shall include one or more of the utilization voltages shown in Table 1 of IEC Standard 6003
