ML21091A211

Enclosure 2: C&D Technologies Battery Calculation Report (Five Pages, Including Previously Submitted Rating Table)

ML21091A211
Person / Time
Site:	MIT Nuclear Research Reactor
Issue date:	03/24/2021
From:	Massachusetts Institute of Technology (MIT)
To:	Office of Nuclear Reactor Regulation
Shared Package
ML21091A207	List: ML21091A208 ML21091A209 ML21091A211 ML21091A213 ML21091A214 ML21091A215 ML21091A216 ML21091A217
References
EPID: L-2021-NF A-0000
Download: ML21091A211 (6)

Text

IEnclosure 21 C&D TECHNOLOGIES, INC.

CD TECHNOLOGIES 1400 UNION MEETING ROAD BLUE BELL, PA 19422 Power Solution (215) 619-2700 FAX : (215) 619-7840 Project Information

Title:

Nuclear Lab@ 138 Albany Street Company: MIT Sized By: John Arcuri Date: Thursday 2nd May 2019 Reference No.: 35A MG+22A Lights = 57 Amps for 8hrs Key Parameters Number of Cells: 60 Minimum Temperature: 77 °F Number of Jars: 60 Design Margin: 1.10 Final volts per cell: 1.75 vpc (average) Aging Factor: 1.25 Parallel Strings:

Load Information Profile: Constant Current Amps: 57.00 Required min Charger calculates to:

Duration: 480 Minutes (456Ahr*1.1)/24hrs + OA = 21Amp min output AH Removed: 456 .00 Battery Model: AT-15P Specific Gravity: 1.300 Type: VRLA 20 year Product Line: msEndur II AT-P Selection Criteria: By Battery Application - Switchgear & Control

% of Requirement: 133.88%

Runtime: 16 hr 5 min Runtime is based on 100% battery capacity adjusted to user-selected minimum design temperature.

Number of Jars: 60 Jar Length: 23.19 in.

Jar Width: 6.12 in.

Jar Height: 9.04 in .

No. Plates: 15

• Float vpc: 2.26 volts per cell

• Max vpc: 2.33 volts per cell Jar Weight: 122.6 lbs Battery Weight: 7,356.00 lbs Accessory Kits Std. Accessory Kit: Please call C&D Applications Dept for accessory kit information

• Nominal values only, see Installation and Operations Manual for details.

The C&D Sizing Program adheres to the battery sizing methodologies found in the current versions of IEEE-485, Recommended Practice for Sizing Lead-Acid Batteries for Stationery Applications and IEEE-1184, Guides for Batteries for Uninterruptible Power Supply Systems Tuesday 16th March 2021

©2021 C&D Technologies, Inc. www.cdtechno.com All critical calculations must be verified with C&D Applications Specifications are subject to change without notice

cs I TECHNOLOGIES Power Solution C&D TECHNOLOGIES, INC .

1400 UNION MEETING ROAD BLUE BELL, PA 19422 (215) 619-2700 FAX: (215) 619-7840 Rating Table msEndur II A T-P - amps Final Voltage 1. 75 volts per cell - at 77.00°F 1 hrs 2 hrs 3 hrs 4 hrs 5 hrs 6 hrs 7 hrs 8 hrs 9 hrs 10 hrs 11 hrs Battery Model 1 min 0 min 0 min 0 min 0 min 0 min 0 min 0 min 0 min 0 min 0 min 0 min AT-07P 396.6 189.3 122.71 92.55 74.84 63.02 54.53 48.1 43.06 38.98 35.63 32.81 AT-09P 529 .7 259.3 170.15 128.73 104.19 87.78 75.95 66.99 59.96 54.28 49.6 45.67 AT-11P 662.1 324.1 212.69 160.91 130.24 109.72 94.94 83 .74 74.95 67.85 62 57 .09 AT-13P 737.7 352.1 228.24 172.14 139.2 117.23 101.42 89.47 80.08 72.51 66.26 61 .02 AT-15P 927 453.7 297.77 225.27 182.34 153.61 132.91 117.24 104.93 95 86 .8 79.93 AT-17P 1057.6 504.8 327.23 246.8 199.56 168.07 145.41 128.27 114.81 103.96 95 87.49 AT-19P 1191.9 583.4 382 .85 289.63 234.43 197.5 170.88 150.73 134.91 122.14 111 .6 102.76 AT-21P 1322 631 .1 409.04 308 .5 249.45 210.08 181 .76 160.34 143.52 129.95 118.75 109.36 AT-23P 1456.7 713 467.92 353.99 286.53 241.38 208.86 184.23 164.89 149.28 136.41 125.6 AT-25P 1586.4 757 .3 490.84 370.2 299.34 252.1 218.12 192.4 172.22 155.93 142.5 131 .23 AT-27P 1721 .6 842 .6 553 418 .36 338.62 285.27 246.83 217.72 194.87 176.42 161.21 148.44 AT-29P 1850.8 883.5 572.65 431.9 349.24 294.11 254.47 224.47 200.92 181.92 166.25 153.1 AT-35P 1101 .9 723 .15 547.08 442.82 373.05 322.78 284.72 254.83 230.71 210.81 194.11 AT-39P 1199 777.17 586 .14 473.96 399.16 345.35 304 .64 272.68 246.9 225.63 207.78

C&D TECHNOLOGIES, INC.

TECHNO OGIES 1400 UNION MEETING ROAD BLUE BELL, PA 19422 Power Solution (215) 619-2700 FAX: (215) 619-7840 C&D Battery Model 840 Ampere-hours, 8 hr, to 1.75 vpc Model: AT-15P Product Line: msEndur II AT-P Type: VRLA 20 year Grid Type: Lead Calcium Specific Gravity: 1.300 No. Cells / Jar:

Part Number: n/a No. Plates: 15

• Float vpc: 2.26 volts per cell

• Equalize vpc: 2.33 volts per cell

• Nominal values only, see Installation and Operations Manual for details Key Calculations Based on the Following Parameters:

Model: AT-15P Number of Cells: 60 Cell Voltage: 2.26 volts per cell Temperature: 77.00 °F Battery String Information:

• Float: 135.60 vDC Nominal Float

• Equalize: 139.80 vDC Nominal Equalize vDC as Entered: 2.26 vDC Based on User Provided Cell Voltage Number of Cells: 60 Number of Jars: 60 Battery Weight: 7,356.00 lbs Hydrogen Evolution:

at Volts per Cell: 2.33 Hydrogen generation calculation based on worst case Boost/Equalize charge mode in accordance with IEEE 1635-2012 Table 2.

Per Cell: 0.001110 cu. ft. H2 / Hour Per String: 0.066578 cu. ft. H2 / Hour (60 cells in the string) at Temperature: 77.00 °F Electrolyte & Composition Calculations:

Per Cell Per String Electrolyte Volume: 2.69 gal 161 gal Electrolyte Weight: 29.84 lbs 1790 lbs Lead Weight: 81.50 lbs 4890Ibs H2SO4 Weight(%): 12.65 lbs 759 lbs Electrolyte quantities given are approximate values designed to meet or exceed known reporting requirements of applicable health and safety codes.

Cell Resistance & Short Circuit:

Short Circuit Current: 6038 max. amps. Calculated Short Circuit Current in Amperes Cell Resistance: 0.000331 ohms. Resistance expressed in ohms, for Cell + 1 Connector Cell Resistance: 0.000331 ohms. Re Jar Information Width: 6.12 in.

Length: 23.19in.

Height: 9.04 in.

Cover: polypropylene , UL94 VO.

LOl>28 Standard Jar: polypropylene, UL94 VO.

LOl>28 Optional Jar: n/a Safety Vent: Safety valve consisting of a pressure release vent and flame arrester Terminals: Outward protruding tin plated copper terminal with Ohmic Ring for ease of measurement during maintenance Weight Information **

Jar: 122.60 lbs Dom. Pack: n/a

• • - Does not include module or rack weight Features Easy to install space saving modular design provides the greatest amount of power in a small footprint Certified as NEBS Level 3 compliant to Earthquake Risk Zone 4 in various system configurations Exceed 1997 UBC Zone 4 seismic requirements for at or below grade installations Proprietary calcium alloys and patented positive grid design minimize positive grid corrosion and growth - maximizes battery life Robust polypropylene container and cover-enhances product quality and improves strength of materials for safe operation Fully backed by a worldwide networ1< for local service Applications This model is suitable for numerous applications and deployments. Listed below are standard applications, however, applications engineering should always review specific requirements prior to deployment.

Switchgear & Control - General

Purpose:

An application in which, characteristically, both high and low currents are required for various durations. Duty cycles (sequence and duration of current loads over support time) are typically 1 minute to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> in duration.

Telecommunication - Long Duration: An application in which, discharge currents are relatively low and the battery reserve time is from three hours to several days.

UPS - Short Duration: An application in which, discharge currents are very high and the battery reserve time is one hour or less(typically 15 minutes).

Product Line PRODUCT LINE: The msEndur II is the latest advancement in battery technology. By combining the service life of a flooded battery with the perfomance-energy density of valve regulated, C&D has created msEndurll- The True Long-Life Battery Other Battery Models For This Product Line AT-07P AT-09P AT-11P AT-13P AT-15P AT-17P AT-19P