7000 HARDESON RD 2024-12-30 - Laserfiche WebLink

Confidential Draft Hydrogen Fueling Station Performance Validation Testing—DO NOT CITE OR QUOTE HyStEP Summary Test Report for Linde—Mobile Refueler Hydrogen Station Updated Revision Date:September 29,2023 I. Executive Summary The following is a summary of the tests performed at the Linde mobile refueler hydrogen station, which includes the following observations, conditions, limitations, and/ or necessary changes. 1. The Linde station/dispenser is designed as a mobile refueler module that can also be categorized as a stationary station module, that can be utilized temporary or permanently, depending on the need and application. It is designed and intended for ambient temperature (without pre-cooling) hydrogen fueling of heavy-duty vehicles, e.g., vehicles that use a CHSS volume significantly greater than 248.6 L. 2. Station module has one Bennett dispenser with H35 and H70 nozzles, which is connected to a mobile hydrogen fueling/supply storage system (vessels) of 500 bar(50 MPa). H70 nozzle was not working and has not been fully validated and/or ready to be used by Bennett. For this testing report, ONLY H35 has been validated by HyStEP. 3. For this testing performed using HyStEP, the dispenser implemented the general fault and table-based communication requirements from the current SAE J2601-2020 Table-Based fueling protocol but used ambient fueling table D-35 from SAE (TIR)J2601-2010 and the fueling protocol function requirements that are unique to ambient fueling. The dispenser was tested using the latest ANSI/CSA HGV 4.3-2022 testing method for the general fault and communications testing, and some additional tests were created for ambient fueling temperature tolerances. 4. Linde plans to use the Clean Energy Partnership fueling tables for fueling heavy duty sized CHSS. 5. Station is designed and intended to fill ONLY heavy-duty vehicles with a CHSS volume greater than 248.6L. Due to CHSS size limitations on HyStEP, fueling tests were conducted using CHSS Categories B and C. 6. Station has not implemented Top-off and Cold Dispensing (CD)fueling protocols. Top-off fueling protocol and cold dispensing are not required in J2601-2010. 7. Initial pressure (Pinitial) is determined after the connection pulse during the initial leak check. The dispenser does not use the vehicle MP signal to determine initial pressure. Bennett comment: before the start of a fill, the station measures the initial pressure in the CHSS immediately after the connection pulse according to J2601 (2020) Section 3.11.3 and J2601 (2010 preliminary) Section 7.1.2.1. Additionally, J2601 (2020) Section 8.3.1 states that a communicated pressure below 0.5 MPa is acceptable if the pressure measured after the connection pulse exceeds 0.5 MPa. Therefore, the test setup for test 2b was invalid and CARB correctly indicated in the Final Result column that the test was N/A. CARB comment: We included test 2b to determine whether the dispenser responds to an MP signal below the minimum initial pressure (2 MPa in this case). We agree that it is not a required test and the correct result is N/A. 8. The following fault tests were conducted using actual fueling by modifying the measured station pressure, fuel delivery temperature, or ambient temperature inputs in the PLC. See more details in the General Fault testing section: a. Ambient temperature signal. b. Minimum fuel delivery temperature. c. Ambient temperature limits for ambient fueling. d. Fuel delivery temperature tolerance for ambient fueling. e. Upper pressure corridor limit. 3 Page 12 of 38