Hybrid Heat Pumps VRF - GHP
Panasonic GHP/EHP hybrid system - intelligent VRF technology powered by gas and electricity
The combination of gas and electric units offers the possibility of even greater energy savings.
It's time to save energy by using gas and electricity with reliable Panasonic ECO G / ECOi technology.
The hybrid system offers intelligent control logic for greater savings and higher efficiency, taking the best from the ECO G and ECOi systems.
The solution on offer can be compared to a hybrid car in terms of heating and cooling.
Unprecedented flexibility and low operating costs
Advanced VRF-GHP hybrid systems powered by electricity and natural or propane gas provide unparalleled operating flexibility, safety and ultra-low operating costs . The system can be realised as a water or direct evaporation system with the possibility of connecting up to 48 indoor units.
The system offers all the advantages of gas-fired GHP heat pumps, including stable heat output at low outside air temperatures and the possibility of using free waste heat from the engine to supply DHW and electrical VRF systems, such as flexibility at low system loads.
- Cooling capacity 84 kW, heating capacity 94.5 kW
- The total maximum electrical power consumption of the entire hybrid system is only 7.53 kW
- Choice of natural gas or LPG as the main source of supply
- Thanks to the use of advanced energy saving features - operating costs are reduced by up to 50% compared to standard VRF or GHP systems
- With photovoltaics, operating costs up to 50% lower compared to a Panasonic GHP system with energy saving features
- With photovoltaics, operating costs up to 80% lower compared to a standard GHP system from another manufacturer
- Direct evaporation and chilled water systems can work together
- Significantly reduced CO2 emissions
Diagram of the EHP/GHP hybrid system
The diagram below shows the operation of the EHP/GHP hybrid system
EHP/GHP hybrid system components
Overarching GHP unit
EHP sub-unit
- GHP and EHP load calculation
- Operation depending on the upper limit setting
- Individual performance control
- Equipment control
- Special controls (defrosting, oil recovery, 4-way valve control, fault handling)
Intelligent controller
- Demand monitoring
- Calculation of indoor unit load/total load
- Work factor display
- Set the upper limit of MAP accordingly:
- Unit energy prices
- Electric power demand
- Loads on the air conditioning system
Principle of operation and optimisation of hybrid system performance
Loads on the air conditioning system
Peak power demand has been significantly reduced as the GHP system consumes less than 10% of the electricity consumed by the EHP system.
2. Optimum control - maximum energy savings
Switching between GHP and EHP system operation based on consumption, power demand, part load.
Where can we use a hybrid EHP/GHP system ?
1. Buildings with variable heating and cooling demand
Due to the possibility of specifying an operating priority for the GHP or EHP unit, or due to the maximum efficiency, the possibilities of optimising energy consumption according to the current load of the facility are almost unlimited.
Ideal for hotels or office buildings with fluctuating loads
2. if we are looking for very low running costs in our facility
A hybrid system uses much less energy than a GHP gas heat pump alone or a VRF system alone.
However, when combined with photovoltaics, the energy consumption is incomparable to any other system.
Compared with a gas heat pump alone, the hybrid system enables energy consumption to be reduced by up to 50-70 % when PV cells are used.
3. buildings with limited access to electricity supply
The electricity consumption of ECO G (GHP) units is only 9% compared to ECOi (VRF) units, as the compressor drive uses a gas engine.
In a hybrid system, the gas heat pump plays a key role and is responsible for more than 65% of the total system output
4. high DHW demand throughout the year
Using the heat from the flue gases during heating and cooling allows efficient production of DHW all year round
5. one common and flexible system for heating, cooling and c. w. u.
The ECO G system has been designed for the possibility of connecting different indoor units and controllers. In the new GE3 series,
in response to the needs of commercial customers, a refrigerant pump-out function has also been introduced.
It is possible to build a large system managed from one central controller based on GHP gas heat pumps electric VRF heat pumps and VRF-GHP gas and electric hybrid heat pumps. In this way, we can build a very extensive system tailored perfectly to the needs of the site, additionally using the entire spectrum of indoor units in both direct evaporation and water-based systems.
6. Radical reduction of CO2, NOx, SOx
GHP gas heat pumps are designed to significantly reduce emissions of carbon dioxide, nitrogen oxides and sulphur oxides into the environment, which have a very significant impact on our environment. Compared to traditional air conditioning and heating systems, gas heat pumps emit up to several times fewer pollutants into the environment.