Refrigeration on Demand | Inline Thermal Storage Option

DXTS™ The Inline Charging Method

Refrigeration on Demand™ | The Thermal Storage Option | (TES) Thermal Energy Storage…

• Fast and easy installation
• Installed in addition to the existing refrigeration equipment
• Simple charging by night – more efficient battery charging during cooler night time temperatures
• Designed to accommodate refined vegetable Beetroot extract phase changing material for the “going green initiative”
• Battery condensing temperatures maintained at 15F /-22F annually – when during the day it is 100/120F outdoors
• Existing liquid lines mostly operate at evaporating pressures – refrigerant loss reduced due to less pressure
• Thermal modular system design provides stacking for additional capacity
• Good for the environment and economy – projected saving impact on the environment.

 

Our newly introduced patent pending DX Thermal Storage and proven DX Free Cooling combination provides a new energy saving cooling technology for DX vapour compression type refrigeration systems world-wide.

DXTS technology is about storing and shifting cooling energy for periods of time usually up to 12 hours then used when vapor compression and condensing power are too costly or inefficient to operate, especially when it is 115F outdoors, condensing units, compressors and condensing fans can be turned off.

The DXTS unit is available either inline or auxiliary charging methods can apply. The inline DXTS unit shown above is charged by its own refrigeration unit usually at night or other cooler periods and it is typically sized to provide the equivalent refrigeration duty by day.

The DXTS freezer module; 1 m3 provides approximately 13 kw of refrigeration duty @ -30C over 6 hours or 10 kw over 8 hours of demand. Heat transfer in and out of the DX thermal storage unit is a latent heat process which greatly reduces the overall footprint of the DXTS unit. The external aluminium framework assembly is designed for stacking if floor space is premium. Optional outdoor refrigerant based air cooled installations can offer further benefits such as an add on DXFC air cooled condenser that can be used to provide thermal battery charging when outdoor temperatures are low enough.

The assembly adapts to the existing refrigeration rack’s suction and liquid line. The inclusion of an inverted “P” trap en-route the compressors ensures an uninterrupted return of vapors back to the battery during the DXFC cycle. The battery cells are charged by either load shedding at night or by an external cascade Ammonia or HFO refrigeration unit depending on how green one’s calling is…

Anytime anywhere on demand refrigeration on a tariff that suits your budget. Thermal storage of cooling energy by night is an attractive way to save energy by avoiding higher operating charges during the day.

5 Responses to “ Refrigeration on Demand | Inline Thermal Storage Option ”

1. Frick says:

   June 4, 2014 at 7:40 pm

   If we consider to modify our existing refrigeration equipment to add the thermal storage option above, what major changes are required and is there a need to replace the thermostatic valves?

2. Engineering says:

   June 8, 2014 at 6:17 pm

   Thermostatic valves need to be replaced with electronic valves to enable dual control.

3. Luise says:

   January 21, 2015 at 9:47 am

   Hello. How is this thermal storage system different to the systems that are in the field today?

4. Engineering says:

   January 24, 2015 at 2:41 pm

   There are many different types of thermal storage systems available but very few transfer heat directly into a phase changing fluid which is 10 times more efficient than sensible cooling.

5. Engineering says:

   February 3, 2015 at 7:18 am

   Other types of thermal storage units that use sensible cooling require additional larger capacity pumps for circulating a brine or aqua solution through a secondary circuit that feeds the evaporators. Unlike DX evaporators, sensible cooling evaporators are generally 10 times larger due the the specific sensible heat capacity of water / degree if compared to the latent heat of fusion.