Heat recovery device in refrigeration system, or HRV, plays an essential role in the factory ventilation system. So what is HRV and how does it work in the air conditioning system? Let's Tan Long Discover the details of this important device in the article below.
Find out what HRV heat recovery device is?
HRV, short for Heat Recovery Ventilator, is Heat recovery device in refrigeration system. It provides fresh air and retains the temperature of the exhaust air, helping to save energy in buildings.
Structure of heat recovery device in HRV refrigeration system
Heat recovery device in HRV refrigeration system consists of two parallel ventilation zones, each with an exhaust duct and an air inlet duct. The exhaust air transfers heat to the heat exchanger, while fresh air from outside absorbs this heat. This process retains heat and saves energy.
HRV Heat Recovery Equipment Usually controlled by temperature and humidity sensors, which help regulate heat exchange. It is widely used in ventilation systems of homes, commercial buildings, hospitals, schools and other applications to improve air quality and create a comfortable living environment.
Function of HRV heat recovery device
HRV Heat Recovery Equipment has the function of ventilation, removing moisture, odors and pollutants, while retaining some heat to save energy. This helps maintain stable temperature and air composition (CO2, O2) in the room.
This device also has an idle mode at night when not much heat is needed, which reduces the load on the FCU in the morning and maintains air circulation, providing comfort. Therefore, heat recovery devices are very popular in today's air conditioning systems.
Working principle of HRV heat recovery device
HRV Heat Recovery Equipment Can be combined with other air conditioning systems such as VRF, VRV Daikin, and Chiller to optimize energy efficiency.
The HRV unit connects to four types of ductwork: fresh air duct, exhaust duct, supply duct, and return duct.
Function of each air duct:
- Fresh air supply pipe: Bring in air from outside. The end can be fitted with insect screen for protection.
- Supply pipe: Outdoor air passes through the HRV, exchanging heat with cold air from the room. This duct can be connected to the ceiling vent or the return air duct of the FCU.
- Return pipe: Exhaust air from the room, including CO2 from respiration, helps clean the air. After passing through the HRV, the air from the return duct will cool the air from the fresh air duct to save energy.
- Exhaust pipe: Exhaust air should be directed to the outside. The louver at the end of the exhaust duct should be far away from the fresh air supply louver to prevent exhaust air from returning to the room.
Benefits of heat recovery devices in HRV refrigeration systems
Most of the HVAC systems in Vietnam are increasing cooling costs and reducing indoor comfort. For example, when windows are opened for ventilation, hot outside air enters the home unchecked, wasting energy and reducing comfort.
Heat recovery device in HRV refrigeration system helps save energy and reduce utility bills. Heat from the exhaust air is transferred to fresh air through the heat exchanger of HRV. HRV Up to 95% of heat energy can be recovered from exhaust air, reducing the cooling requirements of the equipment. HVAC. So, HVAC equipment No need to operate at full capacity, saving energy and costs.
Installation location of HRV heat recovery device
HRV Device compact in size, similar to a condenser Large FCU ceiling unit, with height over 300mm, easy to install in ceiling, loft, or machine room. It can be combined with other ventilation systems such as toilet and kitchen exhaust.
HRV help save energy and reduce load on Air conditioning system from 10-30%, depending on the operating mode.
Practical applications of HRV
HRV Widely used in homes, factories, offices, hospitals, hotels, schools and many other places to improve air quality and create a comfortable living and working environment.
Conclude
Heat recovery device in refrigeration system HRV helps to limit room temperature changes during ventilation, ensuring high quality indoor air. Heat recovery equipment in refrigeration system HRV can also be combined with other air conditioning systems such as VRV Daikin.
