Discover the GA ACF Technology Gas Absorption Chillers Gabrio - - PowerPoint PPT Presentation
Discover the GA ACF Technology Gas Absorption Chillers Gabrio Giuberti Federico Morini Export Area Manager Pre Sales Engineer Robur facts & figures Our success factors: Innovation Service Social Responsibility Facts: - Founded in
Gabrio Giuberti Export Area Manager Federico Morini Pre Sales Engineer
Innovation Service Social Responsibility
Robur SpA
Robur Corporation Commercial presence in more than 50 Countries worldwide
Robur GmbH
ABSORPTION CYCLE RECOVERING HEAT FROM OUTSIDE AIR AS LOW AS -20°C AND/OR PRODUCE COOLING WITH EXTERNAL AIR UP TO +50°C
MOVING PARTS
THAN 0,9 kW FOR 17,7 KW OF COOLING OUTPUT AND ELECTRIC POWER DEMAND IS REDUCED BY 86%
WITH NO IMPACT ON GREENHOUSE EFFECT AND OZONE LAYER
INVESTMENTS FOR NEW POWER PLANTS AND POWER GRID
POWER CONSUMED BY THESE UNITS (IN CASE OF POWER CUTS)
Robur absorption technology has been developed since the sixties, starting from original patents of the beginning of the twentieth century (also by Albert Einstein, among others).
condenser evaporator
HEAT HEAT
HIGH PRESSURE LOW PRESSURE
compressor
ENGINE or ELECTRICITY
COMPRESSION CHILLER
evaporator
HEAT HEAT
HIGH PRESSURE LOW PRESSURE
compressor condenser
ELECTRICITY
HEAT FUEL
absorber generator
Primary energy input
pump
Useful effect ABSORPTION CHILLER
no top-up, no drain, extremely simple maintenance;
HCFC, HFC;
(solution pump) : very high reliability;
1/10 of an equivalent electrical chiller
The absorption chiller technology
Water/Ammonia Lithium Bromide/Water
ammonia
Up to 49% of the overall electricity demand of a typical house
66% of the electricity demand for HVAC 88% of saving compared to an electrical chiller of equivalent cooling capacity
Savings of up to 88% of electricity demand compared to a traditional electrical system (less than 170 W per each TR). Highly beneficial where power supply is a concern. Particularly effective in power peak shaving during seasonal electrical demand: optimization of the installed electrical capacity. Dramatically reducing the need for power supply in isolated off-grid applications: no need to connect remote locations. Excellent in providing a reliable and stable air conditioning even where power supply may suffer from outages or instability (a backup genset can easily support the electric load of absorption chillers).
A massive deployment of the absorption technology would imply huge benefits on strategic infrastructures, avoiding large-scale investments into new power plants or upgrade of the existing power grid. One 1000 MW power plant is worth 1 bn USD
Eight high voltage eletrical transmission lines One gas pipeline 2,400,000 USD/km 150,000 USD/km Saving 93%
Over 400.000 water-ammonia absorption chillers have been installed worldwide. The absorption cycle is substantially static, with no moving parts, therefore extremely reliable, with long life-cycle. The sealed circuit, in welded construction, is designed to be maintenance free (refrigerant charge for life). Overall maintenance costs very low. The modular approach provides operational flexibility and further reliability and embedded redundancy (no back-up required). No loss of refrigerant means no performance degradation over time.
Electrical chillers are manufactured by assembling components from different suppliers. Maintenance schedule implies
Robur chillers have a sealed system
maintenance free design (refrigerant charge for life).
1. Refrigerant part: 2. Auxiliaries:
Intrinsically suitable for high thermal lift, allowing a direct exchange with outdoor air, with no need for cooling towers and the relevant water consumption. Robur absorption technology is the winning solution where water is a valuable resource.
Absorption chillers dedicated to hot and humid climates, with extended
temperatures (HT versions, 50+ °C). No cross-limitation between air temperature and chilled water temperature.
A natural refrigerant (ammonia) with no impact on greenhouse effect (Global Warming Potential, GWP=0) and no impact on the ozone layer (Ozone Depletion Potential, ODP=0). No Fluorinated or Chlorinated refrigerants (F-gas), noxious for the environment and progressively banned worldwide. The maintenance-free sealed circuit design and a completely welded construction, means no potential release of refrigerant.
Natural gas is a clean source of energy, respectful of the environment. The direct use of Natural Gas in Robur absorption units dramatically reduces
heavier fuels for power generation.
Special versions (LB) to produce chilled water at negative temperatures (down to -10°C). Industrial processes or refrigeration applications, for example in the food industry.
Negative temperatures consent possible “peak-shaving” solutions for cooling demand, through ice-storage systems.
GAS FIRED ABSORPTION CHILLER FOR NEGATIVE WATER TEMPERATURES ACF-LB GAS FIRED ABSORPTION CHILLER FOR HIGH EXTERNAL AIR TEMPERATURES ACF-HT GAS FIRED ABSORPTION CHILLER FOR INDUSTRIAL USE ACF-TK GAS FIRED ABSORPTION CHILLER WITH HEAT RECOVERY ACF-HR GAS FIRED ABSORPTION CHILLER ACF
The absorption chiller ACF HR can convert the heat rejected by the absorber/condenser into DHW for free, with no additional consumption. When no DWH is needed the fan can dissipate excess heat to air.
Water mains DHW Robur AY120 or
boiler Cooling circuit
The Gas Absorption Technology has been tested and certified by EBI, DVGW Forschungsstelle, VDE, KIT (Germany), Cetiat (France), California Energy Commission (USA), ENEA and RSE (Italy)
Ecodesign RES Directive EPBD Ecolabel F-GAS EC842/06
Ecodesign RES Directive EPBD F-GAS EC842/06
Main features:
Main features:
comfortable environment.
ventilation by directing clean air to
maintenance and service.
Main features:
limitations and instability.
electrical chillers already installed.
season.
HR
Main features:
EQUIPMENT ROOM
MECHANICAL PARTS; LONG LIFE CYCLE AND HIGH RELIABILITY
COMPARED WITH A TRADITIONAL ELECTRICAL SYSTEM
CONNECTIONS) USING LPG
AND IS A PREFERRED INSTALLATION STANDARD
TECHNOLOGY
A SUITABLE AND RELIABLE PARTNER ABLE TO:
A SUITABLE AND RELIABLE PARTNER ABLE TO: