Environmental Artificial Climate Room, College of Resources and Environment, Fujian Agriculture and Forestry University

The external dimensions of the artificial climate chamber are 3350mm in length, 3850mm in width, and 2800mm in height. The net height inside the chamber is 2200mm.

2. The artificial climate outdoor enclosure adopts a 75mm thick double-sided color steel 0.5mm polyurethane foam white color steel insulation board, with a bulk density of 42 ± 2Kg/m ³ and a fire rating of B1. The indoor ceiling is a 50mm thick polyurethane foam white color steel insulation board, and the ground is equipped with a 50mm polyurethane white color steel insulation board. The air outlet on both sides is made of 2.0mm spray coated steel plate orifice plates, and the ground is equipped with anti slip plastic carpets. Anti leakage protection system.

3. Case StudyEnvironmental Artificial Climate Room, College of Resources and Environment, Fujian Agriculture and Forestry UniversityIndoor 1 room parameters

Construction quantity: 1 room

Temperature range: 0-50 ℃

Temperature control accuracy: 1 ± ℃

Humidity range: 50-90% RH

Humidity control accuracy: ± 5% RH

Cultivation rack: equipped with 8 sets of 4-layer LED tissue culture racks (practical 3-layer LED light source board), tissue culture rack size: length 1000 x width 500 x height 2000 (mm). Each layer of storage board is equipped with LED plant specific growth light sources below, which have a long service life, energy saving, and good light uniformity. The storage board is equipped with mirror stainless steel, which is corrosion-resistant. On the right side of each storage board, there are main and auxiliary light dimmers, as well as weak current, DC24V， Power supply safety.

4. LED light source for LED tissue culture rack: The output spectrum meets the needs of plant growth. The main light is warm white LED beads with a color temperature of 4100K that are beneficial to plant growth, and the auxiliary light is red LED beads with a wavelength of 660nm that can promote plant growth. Light control range: Light intensity at 10cm is 0-60000Lux (1200umol/s.m2), with 0-100% infinite dimming and uniform variation of light intensity. It can automatically control the light intensity or manually control the light intensity.

5. The artificial climate chamber adopts an intelligent control system, which can set the time period, temperature, humidity, lighting, etc. for more than 20 hours. It has the function of setting parameters and recording data, and can also manually control the on or off of indoor lighting.

6. The temperature control system adopts intelligent air conditioning control technology, ensuring uniform indoor temperature and a temperature rise and fall rate of 1 ℃ every 1.5 minutes. According to the heat load of the climate chamber, the operation of the air conditioning unit is intelligently controlled. The control system collects the temperature inside the climate chamber and compares it with the set temperature. Through PID and fuzzy control algorithms, the energy input to the climate chamber is accurately controlled to balance the input energy with the energy dissipated in the climate chamber, achieving greatly improved accuracy and saving a lot of energy. Equipped with a fresh air exchange system, which can be controlled by a controller and equipped with dust filtering devices to maintain uniform fresh air flow.

7. Humidity control technology: By using indoor humidity sensors, the ultrasonic humidification system and dehumidifier dehumidification system are activated and adjusted to comprehensively regulate temperature and humidity. The temperature and humidity are mixed evenly inside the control box before entering the room through the air outlet. (External industrial ultrasonic humidifier for humidification, uniform mist and indoor uniformity; industrial dehumidifier intelligent dehumidification, dehumidifier fully automatic drainage device, no need for manual water pouring, and connected to the control system, with set and controlled dehumidification program).

8. Microcomputer: 10 inch color LCD touch screen (embedded) serves as the human-machine interface, and all parameter displays and settings can be performed on the touch screen. ）.

9. Adopting PID intelligent control mode to control the operation of equipment, achieving automatic detection and control of various parameters in the climate chamber, and enabling unmanned operation of the climate chamber. All are automatic control operating systems, and the computer records the entire process in real-time online; It has data storage, memory, and online query functions, and can continue its original working state in case of temporary power outage, shutdown, or restart, thus ensuring that the equipment runs normally according to the program; The automatic protection function of over temperature alarm can prevent damage to the test and equipment due to overheating or overcooling; The electronic control device is equipped with overcurrent protection, short circuit protection, leakage protection, phase loss protection, and parameter abnormality alarm.

10. With a USB interface to download data, it can achieve online storage of data. Equipped with password lock screen function (three-level password management), unauthorized personnel cannot enter the operation interface to prevent accidental operation.

11. Power supply: AC 380V 50Hz voltage fluctuation ± 10%, three-phase five wire system.

12. Sustainable long-term operation.