CRISTOPIA
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THERMAL ENERGY STORAGE

WHY A TECHNOLOGY ADAPTED TO AIR CONDITIONING AND INDUSTRIAL REFRIGERATION Thermal energy storage is particularly well adapted to air conditioning and industrial refrigeration systems. By smoothing the production of cooling energy, the STL optimises the use of electrical resources and protects the environment. The STL is a flexible and reliable solution for the management of these important energy needs. It enables a significant reduction in installed chiller capacity (up to 70%), the use of low tariff electricity for significant running cost savings and effective management of cooling...

STORE ENERGY? TO REDUCE: ✔ chiller size: by 30-70% ✔ refrigerant charge ✔ size of heat rejection plant ✔ electrical demand ✔ plant room space ✔ chiller short cycling ✔ system maintenance costs ✔ system operation costs TO INCREASE: ✔ cooling capacity from existing plant ✔ chiller annual efficiency ✔ smoothness of electrical load profile ✔ energy management ✔ system life expectancy ✔ the COP and the reliability of the system ✔ system control The STL: contributing to a better environment TO PROTECT THE ENVIRONMENT: ✔ reduction of CO2 emissions ✔ reduction of electrical consumption during peak...

The spherical nodules are blow moulded from a blend of polyolefins and filled with PCM (Phase Change Material). CRISTOPIA's products cover a wide range with fusion Two types of nodules are available: • SN for very low temperature applications. • AC and AN for air conditioning and industrial cooling. NODULE CHARACTERISTICS Material: blend of polyolefins. Chemically neutral towards eutectics and heat transfer fluid. 1.0 mm thickness: no migration of the heat transfert fluid. Sphere obtained by blow moulding: no leakage Sealing of the cap by ultrasonic welding. Air pocket for expansion: low...

A TANK: THE STL EXAMPLE OF TANK CHARACTERISTICS Consult us for alternative dimensions. Volume in m3 Total length External without flanges surface to be L insulated mm m2 2,980 4,280 5,240 5,610 7,400 8,285 10,640 10,425 14,770 Inlet and outlet flanges ES mm Empty weight PE 4.5 bars kg Heat transfer fluid volume Standard pressure drop 2.5 mWG at nominal flow rate - See our technical manual …IN A MADE TO MEASURE TANK The dimensions of the tank(s) are calculated based on the plant space available at site and to satisfy the thermal performance requirements. The tank may be cylindrical or...

OPERATION HYDRAULIC LAY-OUTS TO SUIT YOUR APPLICATION PARALLEL SERIES DOWNSTREAM DESCRIPTION OF THE MODES OF OPERATION PARALLEL LAY-OUT EXAMPLE CONTROL DIAGRAM Operation mode Charge Direct production Discharge only Direct production + Discharge Direct production + Charge CHARGE Overnight the chiller is used to store cooling energy in the STL. The heat transfer fluid is cooled by the chiller to temperatures below the phase change temperature of the PCM. Circulating this fluid through the tank causes the crystallisation of the PCM contained in the nodules. The energy is stored at constant...

PRINCIPLE OF THE STL SERIES UPSTREAM DISCHARGE ONLY The STL can be used alone during peak electrical tariff periods or for back-up applications (the chiller being off). The heat transfer fluid enters the STL at a temperature higher than the PCM fusion temperature and is cooled by the nodules. The leaving temperature is controlled by the three way valve to match the system demand. DIRECT PRODUCTION + DISCHARGE When the system demand is greater than the installed chiller capacity the cooling energy is provided by the combined efforts of the chiller and the STL. The chiller works at full...

LEADER IN AN EXEMPLARY PRODUCTION FACILITY CRISTOPIA is a subsidiary of CIAT Group, the European leader in HVAC with renewable energy solutions. Our leadership in Thermal Energy Storage is a result of over 20 years of continuous technological development based on the latest production and management tools. Due to our skilled and dedicated staff, CRISTOPIA has developed a unique expertise in its field of activity. More than 2500 clients world-wide are using our technology to shift more than 800 MW of electricity every day (15,000 MWh of thermal energy are charged and discharged daily). The...

THERMAL ENERGY STORAGE CUSTOMER SERVICES TEST FACILITY CRISTOPIA has developed an experimental test facility to provide the most relevant advice on the use of the STL (lay-out, hydraulic details, controls, storage strategy,...). This test facility may also be used to simulate any new project with an STL. CRISTO’CONTROL AN AUTONOMOUS, COMPLETE REGULATION AND REMOTE CONTROL SYSTEM Cristo’Control is the only regulation and remote control system specifically adapted to Energy Pole with Thermal Energy Storage Systems. Because the performance of an installation with STL depends essentially on the...

APPLICATIONS CRISTOPIA ENERGY SYSTEMS’STL: FOR BETTER ENERGY MANAGEMENT Heat pumps, Low temperature energy recovery, air conditioning, back-up, computing rooms, clean rooms,... INDUSTRIAL REFRIGERATION AT NEGATIVE TEMPERATURES: Slaughterhouses, central kitchens, dairy industries, bottling plants, salting, ice rinks,... AN.12 AN.15 SN.18 INDUSTRIAL REFRIGERATION AT VERY LOW TEMPERATURES: SN.21 Chemical processes, pharmaceutical plants, deep freezes,... SN.26 SN.29 SN.33 « Due to the company’s continuous development, CRISTOPIA reserves the right to modify specifications without prior notice.»

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