1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2201 Carbon Monoxide (CO) Emission Rate of Portable Generators STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL
2、 COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Carbon Monoxide (CO) Emission Rate of Portable Generators, UL 2201 Second Edition, Dated January 9, 2018 Summary of Topics This revision was issued to include the ANSI
3、Approval designation for ANSI/UL 2201, the Standard for Carbon Monoxide (CO) Emission Rate of Portable Generators. The requirements are substantially in accordance with Proposal(s) on this subject dated March 17, 2017 and November 3, 2017. Text that has been changed in any manner or impacted by ULs
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9、s PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL January 9, 2018 (Title Page Reprinted: January 24, 2018) 1 UL 2201 Standard for Carbon Monoxide (CO) Emission Rate of Portable Generators The rst edition was titled Portable Engine-Genera
10、tor Assemblies. First Edition March, 2009 Second Edition January 9, 2018 This ANSI/UL Standard for Safety consists of the Second Edition including revisions through January 24, 2018. The most recent designation of ANSI/UL 2201 as an American National Standard (ANSI) occurred on January 24, 2018. ANS
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13、RIGHT 2018 UNDERWRITERS LABORATORIES INC. ANSI/UL 2201-2018UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 9, 2018 UL 2201 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT
14、PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4 2 Units of Measurement .4 3 Undated References 4 4 Denitions 4 PERFORMANCE 5 Test Method Options to Determine the Carbon Monoxide Emissions Rate .6 5.1 General .6 5.2 Portable Generator Assembly CO Emissions Method Option 1 .6 5.3 Portable Generato
15、r Engine-Only CO Emissions Method Option 2 .7 6 Generator Assembly Enclosed Space Testing 8 6.1 General .8 6.2 Enclosed Space Testing 1 Cold Condition, Low Air Injection Rate (AIR), High Load . .8 6.3 Enclosed Space Testing2W a r mCondition, Elevated Air Injection Rate (AIR), Medium Load 8 6.4 Enclo
16、sed Space Testing3W a r mCondition, Elevated Air Injection Rate (AIR), Low Load 9 6.5 Pass/Fail Criteria .9 JANUARY 9, 2018 UL 2201 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 This standard describes the testing
17、 procedures and requirements applicable in determining the carbon monoxide (CO) emission rate of a portable generator and also testing procedures and requirements applicable in determining the shutoff capability of a portable generator in elevated carbon monoxide (CO) environments. 1.2 These require
18、ments apply to spark-ignited engines installed in portable generators for each fuel type recommended by the manufacturer. 2 Units of Measurement 2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 3 Undated References 3.1 Any u
19、ndated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. 4 Denitions 4.1 For the purpose of this test method, the following denitions apply: 4.2 AIR INJECTION PORT An inlet into the enclose
20、d space having an opening that shall be no less than 25 in 2 (0.016 m 2 ) and no greater than 50 in 2 (0.032 m 2 ) and located on the Side Wall (C) at least 10 ft (3.05 m) from the Back Wall (B) as shown in Figure 4.1. This is generated text for gtxt. JANUARY 9, 2018 UL 2201 4UL COPYRIGHTED MATERIAL
21、 NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4.3 AIR OUTLET PORT An outlet allowing air to exit from the enclosed space that has an opening that shall be no less than 50 in 2 (0.032 m 2 ) and no greater than 288 in 2 (0.186 m 2 ), located on the Back Wall (B),
22、and positioned between the centerline of the room and the opposite wall of the air injection port as shown in Figure 4.1. 4.4 CO METER Meter capable of measuring CO levels at 1 Hz with accuracy requirements prescribed in the Code of Federal Regulations, (CFR) 40, Part 1065. 4.5 EMISSION MEASUREMENT
23、SYSTEM A constant volume sampling (CVS) or raw gaseous emission measurement system must meet the requirements of the Code of Federal Regulations, (CFR) 40, Parts 1054 and 1065. 4.6 ENCLOSED SPACE A test room that encloses the portable generator that has an overall air volume between 900 1250 ft 3 (2
24、5.49 35.40 m 3 ) and that is rectangular in conguration with a general size guideline of 17 ft 17 ft 8 ft (5.18 m 5.18 m 2.44 m) as an example. The test room should include two ports that will be located on each end of the enclosed space as indicated in Figure 4.1, with the port closest to the gener
25、ator acting as a forced fresh air inlet and the other port downstream of the generator exhaust acting as a natural air outlet. 4.7 LOAD BANK AND POWER METER An AC electric resistor load bank is used to simulate steady electric loads on the generator. The load bank is capable of adjustment of 5% of e
26、ach required load condition. A power meter is used to measure the actual electrical load delivered by the generator with an accuracy of 5%. 4.8 MAXIMUM AVAILABLE OBSERVED WATTAGE The maximum output power measured in accordance with Safety and Performance of Portable Generators, ANSI/PGMA G300. Figur
27、e 4.1 Enclosed space test room JANUARY 9, 2018 UL 2201 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4.9 PPM Gas concentration in parts per million. PERFORMANCE 5 Test Method Options to Determine the Carbon Monoxide Emissions Rate 5.1 Gen
28、eral 5.1.1 The carbon monoxide (CO) emission rate of a portable generator shall be obtained using a single representative generator test assembly subjected to the tests described in Sections 5.2 or 5.3 and shall pass all criteria as described in Section 6.5. 5.1.2 The CO emission rate is to be deter
29、mined by either testing with the engine installed in the generator in the conguration to be sold by the generator manufacturer in an ambient oxygen environment (approximately 20.9%) or by testing the standalone Class I or Class II engine per applicable EPA standards. 5.1.3 The shutoff capability is
30、to be determined by testing with the engine installed in the generator in the conguration to be sold by the generator manufacturer. 5.1.4 Fuel and lubricants must meet manufacturers specications for the generator or engine being tested. 5.2 Portable Generator Assembly CO Emissions Method Option 1 5.
31、2.1 The weighted CO emission rate of a portable generator is to be obtained by determining the modal CO emission rates at six discrete generator loads at ambient oxygen. All tests shall be performed at an ambient air temperature of 15 35C (59 95F). Measure the CO emission using an emission measureme
32、nt system. 5.2.2 Calculate the weighted CO emission rate of the generator using the following equation: m w = 0.09 m 1 + 0.20 m 2 + 0.29 m 3 + 0.30 m 4 + 0.07 m 5 + 0.05 m 6 In which: m w = Weighted CO Emission Rate, gram per hour (g/h) m 1 = CO Emission Rate at mode 1 (g/h) m 2 = CO Emission Rate a
33、t mode 2 (g/h) m 3 = CO Emission Rate at mode 3 (g/h) m 4 = CO Emission Rate at mode 4 (g/h) m 5 = CO Emission Rate at mode 5 (g/h) m 6 = CO Emission Rate at mode 6 (g/h) JANUARY 9, 2018 UL 2201 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM
34、UL 5.2.3 The modal CO emission rate is to be measured using an emission measurement system and is to be determined at six loads as described in 5.2.5 5.2.7 using calculations consistent with those provided in accordance with the Code of Federal Regulations, (CFR) 40, Part 1065. When each modal resul
35、t is completed, the weighted CO emission rate shall be determined in accordance with 5.2.2. 5.2.4 At an ambient air temperature of 15 35C (59 95F), start the portable generator and warm at any speed at approximately 75% of its output power rating for 10 min. 5.2.5 With the generator still running, a
36、djust the load bank to apply the rst load listed below. a) Generator mode 1 power: 100% of the maximum available observed wattage b) Generator mode 2 power: 75% of the maximum available observed wattage c) Generator mode 3 power: 50% of the maximum available observed wattage d) Generator mode 4 powe
37、r: 25% of the maximum available observed wattage e) Generator mode 5 power: 10% of the maximum available observed wattage f) Generator mode 6: No load applied 5.2.6 Sample emissions in accordance with the Code of Federal Regulations, (CFR) 40, Part 1065, for at least 2 minutes with the prescribed lo
38、ad applied then stop emission sampling. Record the data and then calculate the mean CO emission values for that load. 5.2.7 Repeat this test for each load indicated in 5.2.5. Note that prescribed power levels achievable for each mode may be different than the prescribed percentage of load desired de
39、pending on the power available at the test condition. 5.2.8 The calculated weighted CO emission rate of the generator should not exceed 150 g/h using the formula in 5.2.2. 5.3 Portable Generator Engine-Only CO Emissions Method Option 2 5.3.1 This method to determine the weighted CO emission rate can
40、 be used for Class I and Class II portable generator engines. The emissions rate is to be obtained in accordance with the Code of Federal Regulations, (CFR) 40, Part 1065. 5.3.2 The following formula should be used to determine the weighted CO emission values of a Class I or Class II generator engin
41、e: Calculated weighted CO rate (g/h) = ECL MP LF In which: ECL = EPA Certication Level in (g/kWh) MP = Max. Power as specied in EPA Application (kW) LF = Load Factor for Class I or Class II = 0.47 JANUARY 9, 2018 UL 2201 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTIO
42、N WITHOUT PERMISSION FROM UL 5.3.3 The calculated weighted CO emission rate of the generator engine should not exceed 150 g/h using the formula in 5.3.2. 6 Generator Assembly Enclosed Space Testing 6.1 General 6.1.1 The enclosed space shutoff capability is to be determined by testing with the engine
43、 installed in the generator in the conguration to be sold by the generator manufacturer in an enclosed space described in 4.6. 6.1.2 The same generator tested in Section 5 is to be placed near the Front Wall (A) with the exhaust port exit positioned toward the Back Wall (B) with at least 10 ft (3.05
44、 m) of separation distance. See Figure 4.1. 6.1.3 CO sampling shall be positioned 1 ft (0.30 m) above the centerline of the top of the generator. 6.2 Enclosed Space Testing 1 Cold Condition, Low Air Injection Rate (AIR), High Load 6.2.1 Pre-condition the test room to an initial temperature of -10 5C
45、 (30.2 9F). 6.2.2 The air inlet port and air outlet port are to be closed and maintained until the end of the test. 6.2.3 Start the portable generator per the operator instruction manual. With the generator still running, adjust the load bank to apply 100% of the maximum available observed wattage.
46、The power shall be measured using a power meter. 6.2.4 At the end of the test, the generator shall meet the criteria in Section 6.5. 6.3 Enclosed Space Testing2W a r mCondition, Elevated Air Injection Rate (AIR), Medium Load 6.3.1 Pre-condition the test room to an initial temperature of 30 5C (86 9F
47、). 6.3.2 The air inlet port and air outlet port are to be open and maintained until the end of the test. 6.3.3 Apply an Air Injection Rate (AIR) at the inlet port that establishes an initial fresh air exchange rate within the enclosed space of 5 0.5 changes per hour and maintain that air injection r
48、ate throughout the test. 1 1 It is recognized that the conditions in the enclosed space may change during the course of the testing due to starting of the generator and resulting pressure and temperature differences, but the intent is to hold the Air Injection Rate constant at the inlet port. 6.3.4
49、Start the portable generator per the operator instruction manual. With the generator still running, adjust the load bank to apply 50% of the maximum available observed wattage. 6.3.5 At the end of the test, the generator shall meet the criteria in Section 6.5. JANUARY 9, 2018 UL 2201 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 6.4 Enclosed Space Test
