IEC 60879-2019 Ceiling Fans Environmental Test Chamber Energy
Efficiency Testing Lab
Overview:
This test laboratory can perform the performance test of the fans
in accordance with the methods specified in IEC 60879-2019 and GB /
T 13380-2007. The test system can accurately measure the
performance parameters such as the wind speed, air volume, fan
speed, fan power consumption, fan energy efficiency value of
ceiling fans and decorative ceiling fans, and can realize the
sampling and analysis of fan products, product quality inspection,
and research and development requirements.
It is a comprehensive single enthalpy difference chamber. The
laboratory contains a set of air volume measuring devices. The test
chamber uses 100mm thick rigid polyurethane board and 0.6mm thick
color steel plates on both sides for thermal insulation, which has
good thermal insulation effect.
This test room contains an external air conditioning system, which
is used to adjust the air environment inside the test room. The
indoor air is cooled, humidified, and heated to make the
temperature and humidity in the test room meet the requirements of
the test conditions.
This laboratory needs to be equipped with an operating room for
storing office computers, power cabinets, control cabinets, and
variable frequency power supplies. This house can be constructed by
boards, which is constructed by the buyer (generally next to the
laboratory).
This test system is mainly controlled by computer. The operator is
outside the test room, and the personnel will not affect the wind
field. The test of the equipment is completed automatically, and
the test data is recorded, saved, and the air flow report and
energy efficiency rating are automatically generated. This system
has advantages of good repeatability, high efficiency, convenient
data storage and so on.
Standards:
Can be designed according to the following standards:
IEC 60879-2019 "Comfort fans and regulators for household and
similar purpose- Methods for Measuring Performance "
GB/T 12021.9-2008 "Minimum allowable values of energy efficiency
and energy efficiency grades for AC electric fans "
GB/T 13380-2007 “A.C. electric fans and regulators”
Types of UUT :
*Ceiling fan:900～1800mm
Test Contents:
* Wind speed
* Wind volume
* Rotating speed
* Speed ratio
* input power
* Energy efficiency value
Laboratory Measurement Instrument Indicators:
| No.: | Name | Content | Range | Measurement uncertainty |
| 1 | Temperature and humidity sensor | Dry bulb temperature | 0～50℃ | ±0.1℃ |
| 2 | Temperature and humidity sensor | Relative humidity | 30%～80%RH | ±3%RH |
| 3 | Digital Power Meter | Input electrical parameters | / | ±0.5% |
| 4 | Anemometer | Wind speed | 0.15～5m/s | ±0.2m/s |
Laboratory Room Structure:
| External dimensions | 4700(W)×4700(D)×3100(H) |
| Inner dimensions | 4500(W)×4500(D)×3000(H) |
| Laboratory maintenance structure | 100mm Rigid polyurethane foam insulation |
| Door | Inside 1600×2200(H)×1 (Sliding doors) |
| Laboratory window size | 1600×800mm |
Experimental Measuring Device:
| Device | Type | Specifications |
| Laboratory | Anemometer guide | Stepper motor control | Japan SanRex or equivalent, with a maximum travel distance of 2m |
| Ceiling fan guide | Stepper motor control | Japan Matsushita or equivalent |
| Sample holder | Height adjusted by screw | Customized |
Main Technical Parameters:
1. Lifting range of sample stage: 900-1800mm.
2. Distance between anemometer and sample:1500mm.
3. The anemometer slide moves along four diagonal lines: 40-1000mm
(automatic adjustment).
4. Wind speed measuring instrument: Brand: Austria E + E, display
decimal point: 0.01m / s, instrument accuracy: ± 0.2m / s
5. Impeller diameter: 100 mm
6. Measuring range: 0.40 ~ 30.00m / s
7. Measurement accuracy: ± 1% of reading + 1% of range
8. Wind speed sensitivity: better than 0.15m / s
9. Temperature probe: range 0 ~ + 50 ℃; accuracy ± 0.5 ℃
10. Driving mode: domestic servo motor + guide shaft.
11. Control method: computer control.
12. Collect data: power value and wind speed value.
13. Data processing: Automatic calculation of average wind speed,
air volume, energy efficiency value, and energy efficiency rating.
14. Data storage and reference function.
Ceiling fan test principle and method:
1. First, install the ceiling fan through the ceiling fan lifting
column, and arrange the anemometer device below 1500mm from the fan
blade plane.
2. Adjust the temperature in the test chamber to meet the test
conditions (20 ° C), and start the test after running the fan for
1h.
3. Before testing, it is also necessary to close the air inlets and
outlets, doors and windows, and relevant personnel to leave the
laboratory to ensure that the laboratory is not affected by
external airflow. Then operator runs the anemometer to start
collecting anemometer parameters. The anemometer device is rotated
by 90 ° per minute to collect and record data (wind speed, speed,
etc.) under the action of the rotating drive frame. (The data of
wind speed ≥9m / min tested in all anemometers is valid data).
The laboratory is equipped with a regulated power supply, which can
reduce the impact of mains fluctuations on test measurements. Fan
power voltage current is measured by a 0.5-level power meter.
