JOSUN Advantage

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Comprehensive Research and Testing Center for Refrigeration Equipment and Systems

The company has built a testing center covering an area of over 3500 square meters, and plans to apply for a national level testing center for ship air conditioning and ventilation equipment, which has the ability to test the performance of ship air conditioning and ventilation systems, ship conditions, reliability, environmental simulation electromagnetic compatibility, and compressors. This testing center is capable of testing models such as chillers, modular air conditioners, assembled air conditioning units, condensing units, refrigeration units, modular air conditioning units, fan coil units, cabin air conditioners, liquid (air) cooling sources, integral air conditioners, constant temperature and humidity machines, dehumidifiers, etc The ability range for testing key indicators such as cooling capacity, dehumidification capacity, air volume, water volume, temperature and humidity, power, noise, and vibration is 2kW~2500kW. The design and construction meet the requirements of the National Laboratory CNAS and the American Air Conditioning and Heating Institute AHRI.

Performance compliance test

Enthalpy Difference Comprehensive Performance Laboratory

Fan performance testing

Thermal Balance Performance Laboratory

High and low temperature alternating damp heat test

Performance test of chiller unit

Noise testing

Performance of screw compressor

Reliability (environmental) testing

Material salt spray test

High temperature non-destructive testing laboratory

High and low temperature test

Reliability test of seawater resistance for condenser

Vibration intensity and vibration acceleration test

Operational stability test

Operation test of chiller unit

Assembly refrigeration device operation test

Operation test of assembled air conditioning unit

Operation test of combined air conditioner

Unit air conditioning unit operation test

Special testing station

IDFC Intelligent distributed air conditioning system simulation cabin

Improvement of air conditioning and ventilation system for onshore comprehensive test cabin

Ice temperature preservation warehouse

Condenser seawater resistance reliability test laboratory

Special laboratory

IDFC Independent fresh air intelligent decentralized air conditioning system simulation cabin

The cabin consists of a test simulation cabin, a low-noise distributed air conditioning module unit system, a cold (hot) medium water supply system, a fresh air supply system, a test control system, and a test testing system.

Improvement of air conditioning and ventilation system in onshore comprehensive laboratory

Improvement of air conditioning and ventilation system onshore comprehensive laboratory: This model cabin is built in a 1:1 ratio based on a complete air conditioning area of a real ship, and is equipped with a complete air conditioning and ventilation system and necessary power, water, and gas supply facilities. It is mainly used for conducting comprehensive performance testing of the system centered on comfort control technology of the air conditioning and ventilation system, including simulation and thermal testing functions Ability to test data management functions, etc

Ice temperature preservation system

Ice temperature preservation is a new storage and preservation technology that overcomes the shortcomings of refrigeration above 0 ℃ and freezing below -18 ℃, ensuring the flavor, taste, and freshness of food.
Ice temperature refers to the temperature range from 0 ℃ to the freezing temperature of living organisms, known as the temperate zone or simply ice temperature. Different foods have different ice temperature zones, and the ice temperature zone for fruits and vegetables is generally 0 ℃~-
Ice temperature preservation technology is the use of cooling methods to control the temperature of food within the temperate zone of ice, achieving a "dormant" state where the metabolism of food tissue cells is minimized and the energy consumption is minimized, thus effectively storing food. The time and freshness of food stored under ice temperature are more than twice that of ordinary refrigerated food.
Due to the narrow "ice temperate zone" of food, even slight temperature fluctuations in the storage environment may cause changes in the quality of the food. If the storage temperature is lower than the freezing point of fruit and vegetable products, it will cause freezing damage to the products and result in significant economic losses. Therefore, the storage environment temperature and other factors in the ice temperature preservation warehouse must be precisely controlled, which requires stricter technical requirements than ordinary refrigeration environments.
Ice temperature preservation and storage environment is a comprehensive application of multiple technologies, including refrigeration, heat transfer, aerodynamics, building structure, precise control, precise detection, data communication, module programming, power regulation, etc. It integrates control, monitoring, constant temperature, and constant humidity into one The body reduces the metabolism, respiration, and material consumption of stored food to a minimum state.
The ice temperature preservation system has the following advantages:
  • 1) Not damaging the cellular structure of food.
  • 2) Maximize the inhibition of the growth of harmful microorganisms and enzymes The activity prevents food from spoiling and spoiling.
  • 3) Maximize inhibition of respiration and reduce nutrition Ingredient loss, extending shelf life.
  • 4) To some extent, improve the quality of food.

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