GB/T 33193 consists of the following two parts under the general title Air conditioning for main line rolling stock:
——Part 1: Comfort parameters;
——Part 2: Type tests.
This is Part 2 of GB/T 33193.
This part is developed in accordance with the rules given in GB/T 1.1-2009.
This part is under the jurisdiction of the National Railway Administration of the People's Republic of China.
Drafting organizations of this part: Qingdao Sifang Rolling Stock Research Institute Co., Ltd., CSR Qingdao Sifang Co. Ltd., CRRC Changchun Railway Vehicles Co., Ltd., CNR Tangshan Railway Vehicle Co., Ltd. and Shijiazhuang King Transportation Equipment Co., Ltd.
Chief drafters of this part: Ouyang Zhongzhi, Mao Hongmei, Chen Ping, Ren Guangqiang, Liu Wenbo, Ouyang Lizhi and Yan Yinghua.
Air conditioning for main line rolling stock - Part 2: Type tests
1 Scope
This part of GB/T 33193 specifies the test procedures and measurement methods for the vehicle air-conditioning system in accordance with the requirements of GB/T 33193.1-2016.
This part is applicable to main line railway vehicles that carry passengers, but excludes suburban, metro, tramway vehicles and driving cabs.
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 normative document (including any amendments) applies.
GB/T 12816 The limiting value and measurement method for the interior noise in the railway passenger coach
GB/T 12817 General technical specification for railway passenger car
GB/T 33193.1-2016 Air conditioning for main line rolling stock - Part 1: Comfort parameters
ISO 7726: 1998 Ergonomics of the thermal environment - Instruments for measuring physical quantities
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 33193.1-2016 apply.
4 Test preparation
It is advised that preliminary tests are carried out to verify the electrical and electronic assemblies, the functional logic of the control system, the air tightness of the air distribution system and the capacity of the air conditioning equipment.
Other equipment shall be in a normal state during the test of air conditioning system.
The test conditions for the compartmented carriages and the open large compartmented carriages in this part shall comply with the relevant requirements of GB/T 12817.
5 Air movement tests
5.1 Static air movement test
5.1.1 Test conditions
The test shall be carried out under the following conditions:
a) parking indoors;
b) altitude < 1500m above sea level;
c) exterior air speed ≤ 4m/s;
d) ambient temperature between 15℃ and 30℃.
5.1.2 Air flow rate
The flow rates below shall be measured in accordance with 9.4:
a) outside fresh air;
b) exhaust air (measured at possible place if appropriate);
c) recirculated air, conditioned air or mixed air.
5.1.3 Pressure differential
This may be shown up by the movement of smoke between the two designated areas, in order to verify that the air conditioning system is well designed to avoid the propagation of odors, especially in catering service areas, smoking areas, toilets and technical areas (e.g. driving cab) of various vehicles.
5.2 Dynamic air movement test
5.2.1 Dynamic air movement measurement
The measurement of air speed and/or pressure during operation may be applied to the following parts:
a) outside fresh air;
b) exhaust air.
The behavior of the cooling system condensate fan should be inspected during dynamic air movement measurement.
These results shall be compared with those taken on a stationary vehicle. The tests may be determined by the supplier and the purchaser through negotiation.
5.2.2 Dynamic tests on pressure protection system
Where pressure wave protection is required (such as a high-speed vehicle) , the vehicle and air conditioning installation shall protect the vehicle from sudden pressure changes.
The dynamic pressure test may be completed in combination with the aerodynamic type test of the vehicle, as determined by the supplier and the purchaser through negotiation.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Test preparation
5 Air movement tests
5.1 Static air movement test
5.2 Dynamic air movement test
5.3 Air speed tests
6 Climatic tests
6.1 General
6.2 Preheating test
6.3 Precooling test
6.4 Regulation test
7 Behavior tests at extreme exterior conditions
8 Complementary tests
8.1 Determination of vehicle heat transfer coefficient
8.2 Thermography
8.3 Noise
9 Measurement methods and measuring instruments
9.1 General requirements
9.2 Temperatures
9.3 Relative humidity
9.4 Air speed
9.5 Air flow rate
9.6 Simulated speed of vehicle
9.7 Simulated solar radiation
9.8 Consumed power and related electric power
10 Test devices
10.1 Passenger volume
10.2 Temperature uniformity of climatic chamber
10.3 Measurement of relative humidity
10.4 Simulation of air speed
10.5 Simulation of solar radiation
11 Distribution of measuring points
11.1 Distribution of measuring points in a vehicle
11.2 Distribution of measuring points in the climatic chamber
Annex A (Normative) Distribution of measuring points for testing air speed of 3 most unfavorable positions in comfort envelope
Annex B (Normative) Test procedures
Annex C (Normative) Location of measuring points for the test on the mean interior temperature in the passenger compartment and adjacent areas
Annex D (Normative) Equivalent solar radiation intensity
Annex E (Normative) Location of measuring points of test sensor in climatic chamber
Annex F (Normative) Location of measuring points for the test on the maximum room temperature difference and relative humidity difference in comfort envelope
Annex G (Normative) Location of measuring points for the test on airflow speed and room temperature temperature difference in comfort envelope
Annex H Normative) Location of measuring points for the test on surface temperature
