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Air Conditioning System in Mushroom Farming Plant

Views: 0     Author: Site Editor     Publish Time: 2025-01-21      Origin: Site


Air Conditioning System in Mushroom Farming Plant


An air conditioning system in a mushroom farming plant is crucial for creating and maintaining the ideal environmental conditions for mushroom growth.


Functions of the Air Conditioning System

Temperature Control: Different mushroom varieties have different temperature requirements. For example, button mushrooms typically grow best at around 16-18°C during the fruiting stage, while shiitake mushrooms may prefer temperatures around 18-22°C. The air conditioning system helps maintain these optimal temperatures, preventing the temperature from getting too high, which could lead to slow growth or even death of the mushrooms, or too low, which might inhibit their development.

Humidity Regulation: Mushrooms need high humidity to grow properly. Usually, the relative humidity in the mushroom-growing environment should be maintained at 85%-95%. The air conditioning system can control humidity by adding or removing moisture from the air. In dry conditions, it can use humidifiers to increase humidity, and in case of excessive humidity, it can use dehumidification functions to prevent the growth of mold and other harmful microorganisms.

Air Exchange and Ventilation: Mushrooms need to breathe, taking in oxygen and releasing carbon dioxide. The air conditioning system ensures good air circulation, bringing in fresh air and removing stale air containing high levels of carbon dioxide. This helps prevent the build-up of harmful gases and provides a healthy gaseous environment for mushroom growth.

Disease and Pest Prevention: By precisely controlling temperature, humidity, and air quality, the air conditioning system helps create an environment that is less conducive to the growth and spread of diseases and pests. For example, maintaining appropriate humidity levels can prevent the occurrence of some fungal diseases, and good air circulation can reduce the risk of pest infestations.


Types of Air Conditioning Systems Commonly Used

Centralized Air Conditioning System: This system is suitable for large-scale mushroom farming plants. It consists of a central air conditioner unit that controls the temperature and humidity of the entire growing area through a network of ducts and air outlets. It offers uniform temperature and humidity distribution, stable performance, and is easy to manage and maintain. However, the initial investment cost is relatively high.

Split Air Conditioning System: In smaller mushroom farms or areas where decentralized control is needed, split air conditioners can be used. Each unit combines an indoor unit and an outdoor unit. They are flexible to install and can be independently controlled for different growing rooms or areas, allowing for more customized environmental control. The installation cost is relatively lower than that of a centralized system, but the overall energy efficiency may be slightly lower.

Evaporative Cooling System: This system uses the principle of water evaporation to cool the air. It is energy-efficient and can increase air humidity at the same time, which is suitable for some mushroom varieties that require high humidity. It works by passing air through wet pads, causing the water to evaporate and cool the air. The initial investment and operating costs are relatively low, but its cooling effect may be affected by high ambient humidity.


Components of the Air Conditioning System

Air Handling Unit (AHU): This is the core component that processes and distributes air. It typically includes filters to remove dust and impurities, a cooling or heating coil to adjust the temperature, a humidifier or dehumidifier to control humidity, and a fan to circulate the air.

Refrigeration System: For cooling purposes, it usually consists of a compressor, condenser, evaporator, and expansion valve. The compressor compresses the refrigerant, which then releases heat in the condenser and absorbs heat from the air in the evaporator, thus cooling the air.

Control System: Composed of temperature and humidity sensors, controllers, and actuators, the control system continuously monitors the environmental parameters in the mushroom-growing area and adjusts the operation of the air conditioning equipment in a timely manner to ensure that the temperature, humidity, and air quality are maintained within the set range.


How to Determine the Optimum Temperature and Humidity Range in a Mushroom Room

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