Zudek provides water-ammonia absorption chillers that use waste heat to produce cooling, reducing energy costs by up to 90%. A case study at a ham processing plant in Italy found that installing a Zudek chiller and gas engine-powered cogeneration system led to annual savings of 495,000 euros with a 2-3 year return on investment. The system produces electricity on-site, recovers waste heat to power the absorption chiller, and reduces the plant's cooling needs by 88% compared to the previous electric compression chiller with a COP of 2.5.

2. water – ammonia absorption
Zudek

3. OUR MISSION
high quality
high efficiency
energy savings

4. OUR HISTORY

5. OUR STRUCTURE
design
engineering
production
service
CUSTOM
MADE
SOLUTIONS

6. PRAMSTRAHLER CASE STUDY
ham processing company, Bolzano, Italy
REFRIGERATION PLANT BEFORE ZUDEK INTERVENTION
overall energy consumption: 7.500.000 kWh electric
cooling energy : 3.000.000 kWh cooling
electrical consumption refrigeration (COP 2,5) : 1.200.000
kWh electric
thermal energy consumption: 2.020.000 kWh thermal
natural gas consumption: 200.000 Sm3

7. ENERGY OVERVIEW
change in average industrial electricity price in Europe
eurostat

8. INNOVATIVE REFRIGERATION
water-ammonia absorption
RECOVERED ENERGY
heat transformed to cold
reduction up to 90% of energy bills

9. TYPES OF ABSORPTION CHILLERS
water-lithium bromide
refrigerant water
> 6 ° C
ZUDEK water-ammonia
refrigerant ammonia
+ 6 °C to -60 °C

10. ZUDEK WATER-AMMONIA ABSORPTION CHILLERS
waste heat recovery
trigeneration

11. ZUDEK WATER-AMMONIA ABSORPTION CHILLERS
TYPES OF APPLICATION
DAIRY INDUSTRY
WATER
+1° C/ +5 °C
FOOD & BEVERAGE
GLYCOL
-5°C / -10 °C
CHEMICAL /
FARMACEUTICAL
GLYCOL
-20 °C / -25 ° C
ICE CREAM /
DEEP FREEZING
AMMONIA
-35 °C / -40 °C

12. TRIGENERATION
a combined production of
electricity, heat and cooling
/ TURBINE

13. PRAMSTRAHLER CASE STUDY INTERVENTION
-3°C
-8°C
+90°C
+80°C
SECONDARY PUMP
WITH INVERTER
COLD ROOMS >0°C
INTERMEDIATE
TANK
-3°C
-8°C
EXISTING AMMONIA PLANT
ABSORPTION CHILLER
ENERMATIK ZUDEK
PRIMARY PUMP
-3°C
-8°C
STEAM BOILER
6 bar (g)
176kW

14. PRAMSTRAHLER CASE STUDY
REFRIGERATION PLANT AFTER ZUDEK INTERVENTION
832 kW electric from gas engine
996 kW thermal heat recovery, of which:
•176 kW thermal steam boiler (at 6 bar (g))
•820 kW thermal to absorption chiller
àabsorption chiller up to 440 kW cooling
at (-8°C)

15. PRAMSTRAHLER OVERALL OVERVIEW (6.500
hours/year)
REFRIGERATION PLANT AFTER ZUDEK INTERVENTION
auto-produced electricity with CHP: 5.409.300 kWh electrical
total heat recovery: 6.474.000 kWh thermal
steam thermic energy: 1.144.000 kWh thermal
produced cooling energy: 2.931.500 kWh cooling
saved natural gas from heating: 126.800 Sm3
saved electricity from cooling: 1.172.600 kWh electrical

16. COOLING CAPACITY : 440 kW
WATER + GLYCOL : -8 ° C / -3 °C
COOLING TOWER : + 30 ° C / + 35 ° C
COMPRESSION CHILLER
ELECTRIC POWER : 176 kW
COPel = 2,5
ZUDEK ABSORPTION CHILLER
ELECTRIC POWER : 20 kW
COPel = 22
88 % ELECTRICITY SAVED
CROSS COMPARISON

17. PRAMSTRAHLER OVERALL BENEFITS
overall saving/earnings: 495.000 € / yearly
return of investment: 2-3 years
reduced maintainance

18. LIVESTREAM OVERLOOK Industry 4.0

19. WHY EARNING ON BEHALF OF OUR PLANET,
WHEN WE CAN EARN BY RESPECTING IT.