Heat Dissipation Systems for Energy Storage Containers

Containerized energy storage is one of the most efficient energy storaging methods that prevails in many countries. While heat dissipation is an essential consideration for the systems' maintenance project, you will see several heat dissipation systems used in the energy storage market especially for battery container temperature control, that are integrated air conditioner temperature control solution, split style cold and hot channel isolation solution, top-mount air conditioner with duct air supply solution, cabinet air conditioner, energy-saving temperature control free-cooling system,  and heat exchange temperature control solution, each of which has its own charateristics that may be interested you. 

Integrated air conditioner temperature control solution

• The whole machine is built-in or external, with front air return and top air supply;

• The built-in air conditioner needs to add a rain cover at the air inlet of the condensing side of the container and a shutter at the air outlet;

• The indoor air supply is sent to the back of the battery rack through the top air duct.

The characteristics of integrated air conditioner temperature control solution include:

(1) High efficiency and environmental protection

  (i) High efficiency and energy saving fan and high efficiency compressor are adopted to reduce noise, prolong the service life of air conditioner and reduce power consumption;

  (ii) Air come out from the top of air conditioner, with uniform air output and large air volume, can meet the requirements of small temperature difference of battery heat dissipation;

  (iii) Environmental refrigerant, which meets the requirements of environmental protection.

(2) Reliability and convenience

  (i) Closed refrigeration cycle to protect the equipment from harsh environment;

  (ii) Integrated design, convenient installation, plug and play, no need for professional air conditioning installation personnel.

(3) Intellegent control

  (i) Multi-function alarm output, real-time system monitoring, convenient man-machine interface, make the control more simple;

  (ii) RS485 & dry contact;

  (iii) Self starting when power is on, multiple protection functions;

  (iv) The communication protocol can be opened, and the operation state of the air conditioner can be controlled according to the cell temperature. When the cell temperature is low, the air conditioner will enter the standby mode to maximize energy saving.

Split style cold and hot channel isolation solution

• Return air from the front and supply air from the back by indoor unit;

• The back of the battery rack is a cold channel, and the middle maintenance channel is a hot channel;

• No need to configure the fan module independently, the comprehensive cost is lower.

The features of split style solution are 

(1) The front return air and the back supply air are adopted, and the supply air is uniform;

(2) Large airflow design can be adopted to meet the requirements of small temperature difference of battery heat dissipation;

(3) Energy efficiency ratio is high;

(4) The indoor unit covers a limited floor area;

(5) Self start when power is on, It has multiple protection functions and high reliability;

(6) The communication protocol can be opened, and the operation state of the air conditioner can be controlled according to the temperature of the battery cell. When the temperature of the battery cell is low, the air conditioner will enter the standby mode to realize the maximum energy saving;

(7) It is easy to install, the air conditioner has its own refrigerant, and the connecting pipe is connected by copper nanoparticles, so there is no need to weld and charge refrigerant on site;

(8) 24-hour uninterrupted operation, designed working life is more than 10 years.

Top-mount air conditioner with duct air supply solution

• Specially for battery compartment with insufficient space in cabinet;

• The air conditioner is installed on the top of the battery compartment to cool the battery rack directly through the air duct;

• Special waterproof design is applicable to avoid water leakage at the top.

Advantages that top-mount air conditioner with duct air supply solution have

(1) High efficiency and environmental protection

  (i) High efficiency and energy saving fan and high efficiency compressor are adopted to reduce noise, prolonged the service life of air conditioner and reduced power consumption;

  (ii) The air conditioner is installed on the top of the container, with downward air outlet, uniform air outlet and large air volume, meeting the requirements of small temperature difference of battery heat dissipation;

  (iii) With environmental refrigerant, meet the requirements of environmental protection.

(2) Convenience and reliability 

  (i) There is a special integrated waterproof design, which fits the container seamlessly to avoid rainwater entering;

  (ii) The air conditioner is installed on the top of the container to save space and solve the problem of insufficient space in the container;

  (iii) Convenient installation, plug and play, no need for professional air conditioning installation personnel;

  (iv) Closed refrigeration cycle to protect the equipment from harsh environment.

(3) Intelligence control

  (i) Multi function alarm output, real-time system monitoring, convenient man-machine interface, make the control more simple;

  (ii) RS485 & dry contact;

  (iii) Self starting when power is on, multiple protection functions;

  (iv) The communication protocol can be opened, and the operation state of the air conditioner can be controlled according to the cell temperature. When the cell temperature is      low, the air conditioner will enter the standby mode to maximize energy saving.

Cabinet air conditioner

• The air conditioner adopts lower air supply and upper air return;

• Cold and hot air supply and return circulation duct is short, temperature control is more accurate;

• Cooling capacity design is optional.

Cabinet air conditioner has following features:

(1) High efficiency and environmental protection

  (i) High efficiency energy saving fan and high efficiency compressor are adopted to prolong the service life of air conditioner and reduce power consumption;

    (ii) Microchannel aluminum tube condenser is adopted for more efficient energy saving.

(2) Easy to install and operate

    (i) Compact all-in-one unit, plug and play, easy to install;

    (ii) Flange design is convenient for various installation methods;

    (iii) Closed refrigeration cycle to protect the equipment from harsh environment;

    (vi) Sheet metal with spraying for anti rust and anti-corrosion.

(3) Intelligence control

    (i) Multi-function alarm output, real-time system monitoring, convenient man-machine interface, make the control more simple;

    (ii) RS485 & dry contact;

    (iii) Self starting when power is on, multiple protection functions;

    (vi) With temperature and humidity signal output, high temperature and humidity alarm output function;

    (v) Micro positive pressure and dehumidification function ensure the operation environment of power equipment.

Energy-saving temperature control free-cooling system

•   The air conditioner adopts lower air supply and upper air return;

•   With fresh air or heat pipe function, outdoor natural cold air can be used in winter, more energy saving and environmental protection;

•   Product external installation, does not occupy the internal space of the container；

•   The air resistance of outdoor condensation side is small, and the axial flow fan is adopted, so the product has higher energy efficiency;

•   Cooling capacity design is optional.

Heat exchange temperature control solution

•       Ensure that the inside and outside of cabin are sealed to meet the requirements of salt spray corrosion protection；

•       The condensation water caused by intermittent operation of the equipment is avoided;

•     Using the characteristics of high outlet air temperature and large internal and external temperature difference, the internal and external heat transfer is carried out;

•       Seamless interface with equipment to reduce wind resistance.

Characteristics of heat exchange temperature control solution include:

 (1) Efficiency and environmental friendliness

     (i) Passive refrigeration, reduce energy consumption;

     (ii) Plate heat exchanger using high efficiency countercurrent recovery mechanism;

     (iii) The heat pipe heat exchanger uses the principle of Thermosyphon to exchange heat through the natural flow of refrigerant in the system; Similar air conditioning design, with evaporator and condenser, but no compressor;

     (iv) Adopt adjustable speed - 48V DC fan or high efficiency AC fan to extend the service life of heat exchanger and reduce power consumption.

 (2) Easy to install and operate

     (i) Compact all-in-one machine, plug and play, easy to install;

     (ii) Flange design is convenient for various installation methods;

     (iii) Closed refrigeration cycle to protect the equipment from harsh environment;

     (iv) Sheet metal with spraying, anti rust and anti-corrosion.

(3) Intelligent control

     (i) Multi-function alarm output, real-time system monitoring, convenient and quick human-computer interface, making the operation easier;

     (ii) RS485 & dry contact;

     (iii) Self starting when power is on together with multiple protection functions.    

Based on users' individualized requirements, most preferrable heat dissipation solution can be chosen but not limited to the mentioned scope. With the diversification of energy storage methods and the application of new technologies, more heat dissipation options will be on table. LANDKING will update the latest industry news in time.