GB/T 44821.1-2024Technical requirements for stratospheric airship—Part 1: Environmental control system (English PDF)
平流层飞艇通用技术要求 第1部分：环境控制系统
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 26, 2024
Implementation date
May 1, 2025
Scope
GB/T 44821.1-2024 is the English-translated version of 平流层飞艇通用技术要求 第1部分：环境控制系统.
GB/T 44821.1-2024 is the Chinese national standard covering the system that keeps a stratospheric airship's cabin and equipment within their working temperature range — the sensors, the control computer, the fans, heaters and valves that act, and the thermal coating and insulation that slow the swing between sun and shade at altitude, the functions and performance, the interfaces, the reliability, maintainability and testability, the safety, the verification tests, and the marking, packaging, transport and storage. Part 1 of the series, with the propulsion part GB/T 44821.2-2024. First edition, in force from 1 May 2025. Issued on 26 October 2024, it has been in force since 1 May 2025.
Document preview — GB/T 44821.1-2024
National Standard of the People's Republic of China
- ICS
- 49.020
- Classification
- V 04
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Preface III Introduction IV 1 Scope1
- 2 Normative references1
- 3 Terms and Definitions1
- 4 Technical Requirements1
- 4.1 Composition1
- 4.2 Function1
- 4.3 Performance3
- 4.4 Interface4
- 4.5 Reliability4
- 4.6 Maintainability4
- 4.7 Testability4
- 4.8 Security5
- 5 Verification test5
- 5.1 Test Items5
- 5.2 Test requirements5
- 6 Labeling, packaging, transportation and storage5
- 6.1 Identification5
- 6.2 Packaging5
- 6.3 Transportation and storage6
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting is required.
This document is Part 1 of GB/T 44821 "General Technical Requirements for Stratospheric Airships". GB/T 44821 has been published as follows part.
Part 1: Environmental control systems; Part 2: Propulsion systems.- Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed and coordinated by the National Technical Committee for Aircraft Standardization (SAC/TC 435).
This document was drafted by: Aerospace Information Innovation Research Institute of the Chinese Academy of Sciences, China Special Aircraft Research Institute, Beijing Aerospace High-Tech Co., Ltd.
Company, China Aviation Technology Research Institute.
The main drafters of this document are: Cai Jingjing, Yang Yanchu, Li Zhaojie, He Zeqing, Nie Ying, Zhu Rongchen, Liu Qiang, Liu Lili, Kang Peifang, Wan Rong, Wang Daguang, Chen Chaoqun, and Ren Haitao.
Introduction
GB/T 44821 "General Technical Requirements for Stratospheric Airships" was formulated to establish a unified system for the development, production and use of stratospheric airships.
Standards will promote the healthy and rapid development of the stratospheric airship field, so as to better meet and serve the economic construction and security needs of China's near-space.
GB/T 44821 is intended to consist of two parts.
Part 1: Environmental Control System. The purpose is to propose general technical requirements and verification for the environmental control system of stratospheric airships.
The testing as well as labeling, packaging, transportation and storage requirements provide a basis for the design and manufacture of stratospheric airship environmental control systems.
Part 2: Propulsion System. The purpose is to propose general technical requirements, verification tests and Labeling, packaging, transportation and storage requirements provide a basis for the design and manufacture of stratospheric airship propulsion systems.
General technical requirements for stratospheric airships Part 1: Environmental control systems
1 Scope
This document specifies the technical requirements, verification tests, and labeling, packaging, transportation and storage requirements for the stratospheric airship environmental control system.
This document is applicable to the design and manufacture of the environmental control system for stratospheric airships. use.
2 Normative references
GB/T 43328
3 Terms and Definitions
The terms and definitions defined in GB/T 43328 and the following apply to this document.
3.1 Environmental control system
Environmental control system A system used to control the working environment temperature inside the airship cabin and various equipment to keep the working environment temperature within the specified range.
4 Technical Requirements
4.1 Composition
The environmental control system should consist of the following subsystems.
Condition monitoring and alarm subsystem. consists of temperature sensors and other measuring equipment. a) Data processing and control subsystem. consists of environmental control computers, sensor collection boxes and other equipment. b) Actuator subsystem. consists of cooling fans, electric heaters, valves and other equipment. c) Environmental protection subsystem. consists of thermal control coating, insulation board and other equipment. d)
4.2 Function
4.2.1 System
The temperature inside the airship cabin and the working environment of each equipment should be controlled to keep it within the specified range.
4.2.2 Condition monitoring and alarm subsystem
The condition monitoring and alarm subsystem should have the following functions.
Monitor the stratospheric airship environmental status and transmit relevant data to the data processing and control subsystem; a)
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
Editions of GB/T 44821.1
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 44821.1-2024 | Technical requirements for stratospheric airship - Part 1: Environmental control system | current edition | Current |
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Related Standards
GB/T 43328-2023 — Aerostat terminology
GB/T 44821.2-2024 — Technical requirements for stratospheric airship—Part 2: Propulsion system
GB/T 44821.3-2026 — General technical requirements for stratospheric airships - Part 3: Energy system
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