Walk in test chamber for solar panel
Solar photovoltaic (PV) modules and panels are becoming increasingly popular due to emerging renewable energy trends. In the near future, solar panels could power vehicles, cell phones, laptops, lights, and airplanes. To power these devices effectively, solar panels must be able to withstand a variety of extreme environments. Therefore, in the design and manufacturing process of solar panels, environmental testing plays a crucial role.
Application
The solar panel walk in test chamber is designed to test the reliability of high-load photovoltaic modules (PV) under extreme environmental conditions. Our test chamber determines the ability of solar panels to withstand repeated thermal stresses caused by increases and decreases. The walk-in test chamber is made with airtight welds and a stainless steel interior to ensure integrity under the extreme conditions required by IEC. The test chamber is compatible for performing moisture tests, humidity freezing tests, high and low temperature tests. Low temperature test. The JOEO solar panel walk in test chamber is equipped with a touch screen controller, USB data file access, Ethernet control, alarm system, data file backup system, complete system security, and can also be pre-programmed to your requested solar test specifications.
Feature
JOEO Compact walk in environmental chamber provide a test chamber large enough for testing full-size PV modules and other large products in the least amount of floorspace. Can be use for panels 1.2m x 2m or larger.
Ideal for high temperature & high humidity applications,High temperature range to 150°C.
Walk in environmental chamber is a high-efficiency refrigeration system that provides unmatched performance; it features optimal temperature and humidity control accuracy for precise testing results, faster ramp. rates, and up to 40% energy savings.
The user interface allows you to program, control and monitor your tests at any time and anywhere-even from your tablet or smartphone.
IEC 61215 Crystalline Silicon Terrestrial Photovoltaic (PV)
10.11 Thermal Cycling Ramp down from 25°C to -40°C at 100°C/h max., soak for a of 10 minutes. Ramp up to 85°C at 100°C/h or less. Soak a minimum of 10 minutes. Then return to 25°C, 6 hour maximum cycle time. Repeat for specified number of cycles per figure 1 “Qualification Test Sequence” of the IEC-61215 test specification (50 and/or 200 cycles). Current test profile chart is based upon module temperature
10.12 Humidity Freeze Ramp from room temperature with 85%RH to 85°C/ 85%RH at 100°C/h max. Soak for 20 hours minimum. Ramp down to ambient with 85% RH at 100°C/h max. Ramp down to 0°C at 100°C/h max then to -40°C at 200°C/h max. Soak for 30 minute minimum. Ramp from -40°C to 0°C at 200°C/h max and from 0°C to 25°C at 100°C/h max. Humidity must be maintained at 85% ±5% whenever temperature is 25°C or higher. No. of Cycles: 10 cycles Current test profile chart is based upon module temperature
10.13 Damp Heat 85°C, ±2°C, 85%, ±5% RH No of Cycles/Time: 1,000 hours
a)Attach a suitable temperature sensor to the front or back surface of the module(s) nearlthe middle. If more than one module of the same type are tested simultaneously, it willsuffice to monitor the temperature of one representative sample.
b) Install the module(s) at room temperature in the chamber.
c) Connect the temperature-monitoring equipment to the temperature sensor(s). Connect each module to the appropriate current supply by connecting the positive terminal of the module to the positive terminal of the power supply and the second terminal accordingly. During the thermal cycling test set the continuous current flow during the heat up cycle to the technology specified current in 4.11.2 at temperature from -40 °C to 80 °C. During cool down, the -40 °C dwell phase and temperatures above 80 °C the continuous current shall be reduced to no more than 1,0 % of the measured STC peak power current to measure continuity. If the temperature rises too fast (greater than 100 °C/h) at the lowest temperature, the start of the current flow can be delayed until the temperature hasreached-20°C.
d) Close the chamber and subject the module(s) to cycling between measured module temperatures of (-40 ± 2) °C and (+85 ± 2) °C, in accordance with the profile in Figure 9. The rate of change of temperature between the low and high extremes shall not exceed 100 C/h and the module temperature shall remain stable at each extreme for a period of at least 10 min. The cycle time shall not exceed 6 h unless the module has such a high heat capacity that a longer
cycle is required. The number of cycles shall be as shown in the relevant sequences in Figure 1 of IEC 61215-1:2016. Air circulation around the module(s) has to ensure compliance with each module under test meeting the temperature cycling profile.
e) Throughout the test, record the module temperature and monitor the current flow through the module(s).
This article mainly describes the IEC 61215 test standard in the solar panel test specification, if you would like to learn about other test standards, you can contact JOEO to learn about your custom solar cell test needs
Application
The solar panel walk in test chamber is designed to test the reliability of high-load photovoltaic modules (PV) under extreme environmental conditions. Our test chamber determines the ability of solar panels to withstand repeated thermal stresses caused by increases and decreases. The walk-in test chamber is made with airtight welds and a stainless steel interior to ensure integrity under the extreme conditions required by IEC. The test chamber is compatible for performing moisture tests, humidity freezing tests, high and low temperature tests. Low temperature test. The JOEO solar panel walk in test chamber is equipped with a touch screen controller, USB data file access, Ethernet control, alarm system, data file backup system, complete system security, and can also be pre-programmed to your requested solar test specifications.
Feature
JOEO Compact walk in environmental chamber provide a test chamber large enough for testing full-size PV modules and other large products in the least amount of floorspace. Can be use for panels 1.2m x 2m or larger.
Ideal for high temperature & high humidity applications,High temperature range to 150°C.
Walk in environmental chamber is a high-efficiency refrigeration system that provides unmatched performance; it features optimal temperature and humidity control accuracy for precise testing results, faster ramp. rates, and up to 40% energy savings.
The user interface allows you to program, control and monitor your tests at any time and anywhere-even from your tablet or smartphone.
Common test Standard
| IEC 61215 | Crystalline silicon terrestrial photovoltaic (PV)modules -Design qualification Temperature Cycling:-40℃ to +85°℃ for 50 and/or 200 cycles *Humidity Freeze:-40℃ to +85℃&85%RH for 10 cycles Damp Heat +85℃&85%RH for 1,000 hours *Curent test chart shows humidity control during the ramp |
| IEC 61646 | Thin-film terrestrial photovoltaic (PV)modules -Design qualification Temperature Cycling:-40°℃ to +85°℃ for 50 and/or 200 cycles *Humidity Freeze:-40℃ to+85℃&85%RH for 10 cycles Damp Heat:+85℃&85%RH for 1,000 hours *Curent test chart does not show humidity control during the ramp |
| IEC 61730 | Photovoltaic module safety qualification Part 2:Requirements for testing |
| IEC 62108 | Concentrator photovoltaic (CPV)modules and assemblies -Design qualification |
| UL 1703 | Flat Plate Photovoltaic Modules and Panels |
| ASTM E1171 | Test methods for photovoltaic modules in cyclic temperature and humidity environments |
IEC 61215 Crystalline Silicon Terrestrial Photovoltaic (PV)
10.11 Thermal Cycling Ramp down from 25°C to -40°C at 100°C/h max., soak for a of 10 minutes. Ramp up to 85°C at 100°C/h or less. Soak a minimum of 10 minutes. Then return to 25°C, 6 hour maximum cycle time. Repeat for specified number of cycles per figure 1 “Qualification Test Sequence” of the IEC-61215 test specification (50 and/or 200 cycles). Current test profile chart is based upon module temperature
10.12 Humidity Freeze Ramp from room temperature with 85%RH to 85°C/ 85%RH at 100°C/h max. Soak for 20 hours minimum. Ramp down to ambient with 85% RH at 100°C/h max. Ramp down to 0°C at 100°C/h max then to -40°C at 200°C/h max. Soak for 30 minute minimum. Ramp from -40°C to 0°C at 200°C/h max and from 0°C to 25°C at 100°C/h max. Humidity must be maintained at 85% ±5% whenever temperature is 25°C or higher. No. of Cycles: 10 cycles Current test profile chart is based upon module temperature
10.13 Damp Heat 85°C, ±2°C, 85%, ±5% RH No of Cycles/Time: 1,000 hours
Procedurea
a)Attach a suitable temperature sensor to the front or back surface of the module(s) nearlthe middle. If more than one module of the same type are tested simultaneously, it willsuffice to monitor the temperature of one representative sample.
b) Install the module(s) at room temperature in the chamber.
c) Connect the temperature-monitoring equipment to the temperature sensor(s). Connect each module to the appropriate current supply by connecting the positive terminal of the module to the positive terminal of the power supply and the second terminal accordingly. During the thermal cycling test set the continuous current flow during the heat up cycle to the technology specified current in 4.11.2 at temperature from -40 °C to 80 °C. During cool down, the -40 °C dwell phase and temperatures above 80 °C the continuous current shall be reduced to no more than 1,0 % of the measured STC peak power current to measure continuity. If the temperature rises too fast (greater than 100 °C/h) at the lowest temperature, the start of the current flow can be delayed until the temperature hasreached-20°C.
d) Close the chamber and subject the module(s) to cycling between measured module temperatures of (-40 ± 2) °C and (+85 ± 2) °C, in accordance with the profile in Figure 9. The rate of change of temperature between the low and high extremes shall not exceed 100 C/h and the module temperature shall remain stable at each extreme for a period of at least 10 min. The cycle time shall not exceed 6 h unless the module has such a high heat capacity that a longer
cycle is required. The number of cycles shall be as shown in the relevant sequences in Figure 1 of IEC 61215-1:2016. Air circulation around the module(s) has to ensure compliance with each module under test meeting the temperature cycling profile.
e) Throughout the test, record the module temperature and monitor the current flow through the module(s).
This article mainly describes the IEC 61215 test standard in the solar panel test specification, if you would like to learn about other test standards, you can contact JOEO to learn about your custom solar cell test needs
