GB/T 33979-2017Test methods for proton exchange membrane fuel cell power system at subzero environment (English PDF)

Foreword

This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This Standard specifies, at low temperature environment (subzero), the general safety requirements, test conditions, test benches, routine tests before low temperature test, and low temperature test methods and test reports of proton exchange membrane fuel cell power system.

This Standard is applicable to the storage test, startup test, working performance test of proton exchange membrane fuel cell power system at low temperature environment (subzero) that use air as oxidant.

This Part is applicable to the complete fuel cell power system.

NOTE: According to the needs, realize the locking function. The system consists of some or all of the following components.

- fuel processing system. a system for metering, adjusting, processing, and pressure-regulating of fuel needed for fuel cell power system;

- air processing system. a system for metering, adjusting, processing, and pressure-applying of air needed for fuel cell power system;

- thermal management system. related parts that provide cooling and heat dissipation to maintain heat balance inside the fuel cell power system, also recover waste heat and assist the heating system during start-up;

- water treatment system. treat recycled or added water for use in fuel cell power system;

- power regulation system. control that the generated power matches user-specified power requirements;

- automatic control system. consist of sensors, actuators, valves, switches, and logic components to maintain fuel cell power system parameters within the manufacturer's set-up without manual intervention;

- ventilation system. provide air to the chamber of fuel cell power system through natural or mechanical methods;

- fuel cell stack. an assembly consisting of a plurality of single cells, plates, cooling plates, common pipes and supporting structures; its typical function is to convert hydrogen-rich gases and air into direct current, heat, water, and other by-products through electrochemical reactions;

- fuel cell module. consist of one or more fuel cell stacks, electrical coupling devices for transmitting electrical energy from the stacks, and monitoring devices;

- built-in energy storage device. an energy storage device inside the system, used to help or supplement the fuel cell module to supply internal or external loads.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 18384.3-2001, Electric vehicles - Safety specification - Part 3. Protection of persons against electric hazards

GB/T 20042.2-2008, Proton exchange membrane fuel cell - General technical specification of fuel cell stacks

GB/T 25319-2010, Fuel cell power system used for motor vehicles - Technical specification

GB/T 27748.1, Stationary fuel cell power system - Part 1: Safety

GB/T 27748.2-2013, Stationary fuel cell power systems - Part 2. Performance test methods

GB/T 28816, Fuel cell - Terminology

3 Terms and definitions

For the purposes of this document, the terms and definitions defined in GB/T 28816 and GB/T 31035 as well as the followings apply.

4 General safety requirements

The general safety requirements for proton exchange membrane fuel cell stack shall comply with the provisions of 4.2 in GB/T 20042.2.

5 Test conditions

When testing, the test conditions shall meet the following requirements. […]

6 Test platform

7 Routine test prior to subzero environment test

8 Subzero environment test

9 Test report