Supermarket Dehumidification

Young Man Grocery Shopping
Supermarket

Today’s Grocery Stores

Modern supermarkets are complex and unique. They have a specific need for dehumidification due to the extensive use of refrigerated cases of frozen and refrigerated food.

Controlling humidity in grocery stores represents a significant challenge, but it also represents a tremendous opportunity to save money and improve the shopping experience. Humidity is a hidden energy issue. Often over half the store energy is refrigeration and air conditioning, and designs should consider the Return on Investment (ROI) provided by lowering operational costs.

If the humidity level is too high, moisture condensation forms on a cold surface, and frost forms on evaporator coils, refrigerated cases, and frozen food packets. Condensation on freezer glass cabinets obstructs the view and diminishes the customer experience.

High humidity levels can also lead to mold and mildew and make it uncomfortable for customers and employees.

High Humidity Levels in Supermarkets

Causes

A large amount of human movement requires a large amount of fresh, often humid air.

The presence of a large amount of fresh fruit and vegetables releases moisture in the air.


Misting the produce performed automatically or by staff.


Customer traffic lets in a large amount of humid ambient air.

Benefits of Dehumidifying the Ambient Inside Air

Reduced energy consumption

Increase the efficiency and life expectancy of refrigeration systems.

Reduce the latent load on evaporators

Improve product quality and reduce product loss

Improve the customer shopping experience resulting in customers spending more time in the grocery store

Increase shopper comfort levels resulting in customers spending more time in the grocery store
Improved product quality

DewAir’s Approach

DewAir’s dehumidification solution is installed in the supply ducting of the existing make-up air system or any rooftop HVAC system.

Using our patent-pending topology design, contractors place the dehumidifiers in the cool delivery air of the makeup air or HVAC system. The delivery air is already cooled when the dehumidifier is installed using this approach; there is no need for the dehumidifier to re-cool the air. DewAir’s RH-Cube dehumidifiers can precisely maintain the delivery dew point near 42F.

Highlights

Saving significant energy, requiring less capacity.

RH-Cube uses patented air-to-air counter-flow heat exchangers.

The total cooling energy is focused solely on dehumidification.

The air entering the dehumidifier is almost the same temperature as the air leaving the dehumidifier.

The RH-Cube indoor unit can be paired with a 20-seer modulating condenser capable of maintaining a constant 42F dewpoint in the air exiting the system.

When appropriate, contractors can also pair several RH-Cube dehumidifiers with a single 20-seer modulating condenser.

No condenser reheats.

Bottom Line

Implementing a DewAir dehumidification solution will save your customers a lot of money because: 

(1) They use less energy, reducing operating costs which are substantial in supermarkets and 

(2) they are much more efficient; as such, your customers will be able to spend less on a dehumidification system for their grocery stores.

Please take a look at our dehumidifier models.  We recommend the RH-Cube 18 DX for grocery stores with a 3-ton or 5-ton modulating condenser. 

Please do not hesitate to contact our team for more information, help with your design, or a quote.