GB/T 40261.1-2023 English PDFUS$649.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 40261.1-2023: Ergonomics of thermal environment - Evaluation of thermal environments in vehicles - Part 1: Principles and methods for assessment of thermal stress and determination of equivalent temperature Status: Valid
Basic dataStandard ID: GB/T 40261.1-2023 (GB/T40261.1-2023)Description (Translated English): Ergonomics of thermal environment - Evaluation of thermal environments in vehicles - Part 1: Principles and methods for assessment of thermal stress and determination of equivalent temperature Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: A25 Classification of International Standard: 13.180 Word Count Estimation: 34,312 Date of Issue: 2023-08-06 Date of Implementation: 2024-03-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 40261.1-2023: Ergonomics of thermal environment - Evaluation of thermal environments in vehicles - Part 1: Principles and methods for assessment of thermal stress and determination of equivalent temperature---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. ICS 13.180 CCSA25 National Standards of People's Republic of China Ergonomic transportation for thermal environments Internal Thermal Environment Assessment Part 1.Heat Stress Assessment Principles and methods and equivalent temperature determination Published on 2023-08-06 Implemented on 2024-03-01 State Administration for Market Regulation Released by the National Standardization Administration Committee Table of contentsPreface III Introduction IV 1 Scope 1 2 Normative reference documents 1 3 Terms and Definitions 1 4 Evaluation Principles 2 5 Methods for measuring the internal climate of vehicles 3 5.1 Overview 3 5.2 Thermal comfort3 5.3 Heat stress 4 5.4 Cold stress 5 5.5 Metabolic rate and clothing5 6 Use test subjects to evaluate5 7 Equivalent temperature determination 5 7.1 Evaluation Principle 5 7.2 Specific equivalent temperature 6 7.3 Measuring instruments 9 7.4 Assessment 9 Appendix A (informative) Structural changes of this document compared with ISO /T S14505-1.2007 and ISO 14505-2.200611 Appendix B (Informative) Heat Stress Assessment Example 12 B.1 Heat stress assessment12 B.2 Performance testing of vehicle HVAC systems12 Appendix C (informative) Measurement or estimation of metabolic rate and clothing characteristics13 C.1 Metabolic rate measurement or estimation13 C.2 Estimating clothing properties13 Appendix D (informative) Calibration and other measurements 14 D.1 Surface temperature calibration14 D.2 Determination of heat transfer coefficient14 D.3 Recovery time determination14 D.4 Determination of accuracy, repeatability and reproducibility14 D.5 Surface properties 14 Appendix E (informative) Measuring instrument examples 15 E.1 Warm-up dummy 15 E.2 Decentralized integrated heating sensor 16 Appendix F (informative) Characteristics and specifications of measuring instruments18 F.1 Overview 18 F.2 Instruments for measuring whole body and segmental equivalent temperatures18 F.3 Instruments for measuring orientation equivalent temperature 20 F.4 Instruments for measuring omnidirectional equivalent temperature20 Appendix G (informative) Equivalent temperature explanation 22 G.1 Interpretation of equivalent temperature in terms of thermal equilibrium22 G.2 Interpretation of equivalent temperature in terms of thermal sensation and thermal comfort22 Reference 25ForewordThis document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document is Part 1 of GB/T 40261 "Thermal Environment Ergonomics Evaluation of Thermal Environment in Vehicles". GB/T 40261 The following sections have been published. ---Part 1.Principles and methods of heat stress assessment and equivalent temperature determination; ---Part 2.Use subjects to evaluate thermal comfort. This document is modified to adopt ISO /T S14505-1.2007 "Thermal Environment Ergonomics Evaluation of Thermal Environment in Vehicles Part 1" "Thermal Stress Assessment Principles and Methods" and ISO 14505-2.2006 "Ergonomics of Thermal Environment - Assessment of Thermal Environment in Vehicles" Part 2.Equivalent Temperature Determination", in which the ISO /T S14505-1.2007 document type is adjusted from ISO 's technical specification to my country's national standard. Compared with ISO /T S14505-1.2007 and ISO 14505-2.2006, this document has many structural adjustments. This document corresponds to See Appendix A for structure number changes between ISO files. The technical differences between this document and ISO /T S14505-1.2007 and ISO 14505-2.2006 and their reasons are as follows. ---Replaced ISO 7730 (see Chapter 5) with the informative reference GB/T 18049, and GB/T 40261.2 replaced ISO 14505-3 (See Chapter 6), in order to adapt to my country’s technical conditions and improve operability. The following editorial changes have been made to this document. ---In order to coordinate with the existing standards, the name of the standard is changed to "Ergonomics of Thermal Environment - Evaluation of Thermal Environment in Vehicles - Part 1" Points. Principles and methods of heat stress assessment and equivalent temperature determination"; ---Incorporated the contents of ISO 14505-2.2006/COR.1.2007, and changed the radiation heat transfer coefficient of 4.2 in ISO 14505-2.2006 The unit of convection heat transfer coefficient is corrected from "W/m2" to "W/(m2·℃)" (see 7.1.3); ---Replaced ISO 7730 with GB/T 18049 (see Appendix B); ---Replaced ISO 8996 with GB/T 18048 (see Appendix C); ---Changed Figure E.1 and Table E.1 in Appendix E (Informative) Measuring Instrument Examples (see Appendix E); ---Deleted Appendix E of ISO 14505-2.2006. Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents. This document is proposed and coordinated by the National Ergonomics Standardization Technical Committee (SAC/TC7). This document was drafted by. China Institute of Standardization, Guangdong Midea Refrigeration Equipment Co., Ltd., Beijing University of Aeronautics and Astronautics, Winning Energy Efficiency Department Technology (Beijing) Co., Ltd., Fujian Yabote Digital Technology Co., Ltd., Qingdao Haier Intelligent Technology R&D Co., Ltd., Hisense Air Conditioning Co., Ltd. Division, Ningbo Fangtai Kitchenware Co., Ltd., Anhui Yangzi Air Conditioning Co., Ltd., Beijing Guanghui Derun Aviation Technology Co., Ltd., Inner Mongolia Industry University, Chongqing University, Civil Aviation University of China, University of Science and Technology Beijing, Xi'an Jiaotong University, Southwest Jiaotong University, Midea Group Wuhan Refrigeration Equipment Co., Ltd. Ltd. The main drafters of this document. Zhao Chaoyi, Qiu Yifen, Wang Rui, Tian Jun, Ge Meng, Su Shiqiao, Yu Cailing, Bie Qingfeng, Guo Junjie, Zeng Xiaocheng, Hu Huimin, Zhang Jiazheng, Li Baizhan, Mei Zhiguang, Qi Yun, Liu Hong, Yao Runming, Feng Chaoqing, Zheng Chongkai, Ma Yuexin, Gao Ping, Lu Yuanyuan, Zhang Di, Liang Tao, Yuan Jie, Yang Jie, Yang Yunxia, Li Wei, Jin Huibin, Gao Jianfeng, Shao Xiaoliang, Dong Qiang, Ma Rongjiang, Sun Liangliang, Qu Zhiguo, Zhang Jianfei.IntroductionConvection heat transfer, radiation heat transfer and conduction heat transfer and their interactions in vehicles are complex. External heat load and internal heating and ventilation The wind system combines to form a local climate that changes spatially and temporally within the vehicle. Asymmetric thermal conditions within vehicles tend to be The main reason for poor thermal comfort of the internal environment. In vehicles with no or poor HVAC systems, heat stress depends mainly on the external environment Effect of climate conditions on the cabin. Subjects form a comprehensive response to the combined effects of several thermal stimuli, and their subjective evaluation is a comprehensive The evaluation is not detailed or accurate enough and is not suitable for reuse. Technical measurements provide detailed information by integrating various thermal environment parameters within the vehicle. and accurate information to predict thermal effects on people. Since a variety of climate factors affect the final heat dissipation of the human body, in order to determine these factors The relative importance of these factors requires comprehensive measurement of these climate factors. The direct method to evaluate the vehicle thermal environment (hot, medium, cold) includes the measurement of various human body reactions, and has three forms. subjective method, objective method method and behavioral approach. Subjective methods use subjective scales to quantify people's reactions to their environment. Objective method refers to the use of instruments or outputs A method of measuring (such as performance measurement) to quantify a person's physical, physiological, or mental condition. Behavioral methods quantify or represent human responses to the environment. Each method is developed based on fundamental principles, and the most appropriate method form and combination of methods for thermal environmental assessment depends on the assessment concerned content and transportation environment. GB/T 40261 "Ergonomic Thermal Environment Evaluation of Thermal Environment in Vehicles" aims to provide information for the evaluation of the thermal environment in vehicles. Principles and methods for the development and evaluation of transportation vehicles. GB/T 40261 is planned to consist of three parts. ---Part 1.Principles and methods of heat stress assessment and equivalent temperature determination. The purpose is to describe land, sea and air traffic Principles and methods for the assessment of heat stress within tools. ---Part 2.Use subjects to evaluate thermal comfort. The purpose is to describe the use of subjects to evaluate thermal comfort in vehicle environments. method. ---Part 3.Determination of equivalent temperature using digital dummy. The purpose is to provide the use of numerical calculations to evaluate thermal comfort in vehicles. normative forecasting method. Ergonomic transportation for thermal environments Internal Thermal Environment Assessment Part 1.Heat Stress Assessment Principles and methods and equivalent temperature determination1 ScopeThis document provides methods for the assessment of internal heat stress in transportation vehicles in the land, marine and aviation sectors. Different methods for assessing transportation engineering Provides information on hot, cold and moderate thermal environments inside, stipulates specific in-vehicle climate assessment requirements, and describes the equivalent temperature of the thermal environment inside the vehicle test methods. This document applies to the thermal environment in vehicle cabins and also to other confined spaces with asymmetric climate conditions. etc. in this document The effective temperature measurement method is mainly suitable for evaluating thermal environments that deviate slightly from the thermal neutral state, and is also suitable for testing vehicles or similar enclosed spaces. HVAC system performance.2 Normative reference documentsThis document has no normative references.3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 cold stress coldstress A caloric balance that causes the body's heat loss to be just equal to or greater than the level that produces a significant, even irreparable, physiological stress response (thermal balance). Debt) climate symptoms. 3.2 heat stress heatstress A caloric balance that causes the body's heat loss to be just equal to or less than the level that produces a significant, even irreparable, physiological stress response (thermal balance). climatic symptoms of accumulation). 3.3 teq The temperature of a uniform space where the average radiation temperature is equal to the air temperature and the air velocity is zero. In this space, the human body passes through convection and radiation. The heat exchanged by the radiation is the same as in the actual environment evaluated. 3.4 teq,whole The temperature of an imaginary space where the air temperature is equal to the wall temperature and the air velocity is zero. In this imaginary space, a full-scale human figure is heated. The dry heat exchanged by the sensor via convection and radiation is the same as in a real non-uniform environment. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 40261.1-2023_English be delivered?Answer: Upon your order, we will start to translate GB/T 40261.1-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 40261.1-2023_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 40261.1-2023_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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