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How to Choose Energy-Efficient Doors for Cold Storage Facilities?
How to Choose Energy-Efficient Doors for Cold Storage Facilities?
In the rapid development of cold chain logistics, energy consumption of up to 38% of the operating cost of cold storage has become a pain point in the industry. After field research on many cold storage facilities, we found that the energy loss mainly comes from three major "invisible loopholes":
1. Long opening and closing times and low efficiency of the common cold storage door, which is the main source of energy loss;
2. the gap between the loading and unloading platform and the pit, and the bottom of the platform, which is exposed to the outdoors, leads to the loss of energy;
3. the poor sealing of truck loading and unloading links produces cold and heat exchanges that can lead to energy leakage, which directly leads to increased costs.
To achieve energy efficiency, environmental protection, and cost optimization, selecting the right energy-saving cold storage door has become imperative. Fortunately, Fastlink has you covered with its HSS-DEY High-Speed Sliding Cold Storage Door—featuring a comprehensive 5-dimensional energy-saving solution.
1.High-speed opening and closing system: The opening speed is as high as 2.5m/s, which is more than 4 times that of the common cold storage door. Test data show that the transformation of a cold storage door can save electricity 67733.14 degrees per year, a reduction of 80%. The energy loss caused by air convection accounts for 82.5% of the annual energy consumption, accounting for the largest proportion, and the effect of reducing this part of the energy consumption is also the most obvious. Therefore, improving the door opening and closing speed and reducing the opening time is the most effective program.
2.Composite heat preservation structure: The door plate adopts the third generation of waterproof heat preservation core material with a thickness of 100mm. The R-value reaches 17, and a door can comprehensively protect the low-temperature environment of the cold storage.
3.Dynamic sealing system: Adjustable sealing design/built-in sealing rubber strips/full sealing design in the unloading position ensures high sealing around the door body, which can meet the harsh cold storage application environment and effectively break the cold.
4.Cooling Heating system: The tracks are equipped with insulation panels to prevent heat loss due to cold bridges and to avoid maintenance costs due to frost and water on the floor.
5.Industrial-grade durable design: Impact resistance, low failure rate, long life, maintenance-free, reducing maintenance costs.
Take an ammonia-cooled cold storage retrofit project, a cold storage door retrofit, as an example:
The temperature inside the cold storage is -18°C, the temperature outside the storage is 10°C, and the relative humidity of the air inside and outside the cold storage is 26% and 60%, respectively. The cold storage door is opened and closed 15 times an hour, working 24 hours a day, 365 days a year without rest. The cold storage door before the renovation used an ordinary stainless steel sliding door. The door had been hit, the sealing of the hole was very poor, and the hole had appeared in the serious frost phenomenon. The anti-freezing heating system works 24 hours a day, and the freezing system is continuously working. The anti-freezing heating system works continuously for 24 hours. After the transformation of the use of the high-speed cold storage sliding door, let's compare the energy loss before and after the transformation:
| Common stainless steel sliding door (before remodeling) | High-speed cold storage door (after remodeling) | |
| Cold storage door size (mm) | 3000mm×3000mm | 3000mm×3000mm |
| Door panel thermal resistance value | 10 | 17 |
| Switching speed (m/S) | 0.53m/s | 2.0m/s |
| Single door opening delayed closing time (S) | 20 | 4 |
| Total time to open the door for a single time (S) | 31 | 7 |
| Percentage of time open (%) | 13.02% | 2.9% |
| Annual cooling power consumption (KWh/y) *due to air convection | 69116.22 | 15378.98 |
| Annual refrigeration consumption (KWh/y) *due to conduction | 392 | 231 |
| Annual refrigeration consumption (KWh/y) *due to infiltration | 12916.26 | 0 |
| Annual refrigeration power consumption (KWh/y) *due to electric heating system | 1310.40 | 393.12 |
| Total annual refrigeration consumption (KWh/y) | 83734.75 | 16001.61 |
Speed, heat preservation, sealing, cold break, and durability are the 5 key factors to be considered when choosing energy-saving cold storage doors. FTL has been devoted to research and development and has continuously optimized and upgraded the energy-saving means of cold storage doors in practice and is committed to providing you with the optimal solution of cold chain loading and unloading systems.
In the industrial door sector, sectional doors have become the "go-to choice" for logistics warehouses, cold storage facilities, and automotive manufacturing plants due to their insulation, weather resistance, durability, and space-saving design. However, for an industrial sectional door, the motor is its "heart." Traditional motors, plagued by frequent failures and excessive energy consumption, have long been a pain point for businesses.
Industrial sectional doors are designed to move in a vertical direction and ride smoothly on ceiling tracks, providing more space within and outside of the building. The space-saving design is highly suited to uses like manufacturing units, cold chain storage, and logistics warehouses where every square meter counts. With maximum clearance and unhindered movement of goods and equipment, sectional doors help optimize workflow efficiency and storage capacity in high-demand industrial setups.