GEA open type heat pumps
Industrial add-on heat pumps with reciprocating compressors
GEA open type heat pumps are optimized for recovering heat from ammonia refrigeration plants. The hot gas from the refrigeration plant is cooled in an open gas cooler vessel, minimizing the superheat and pressure drop and so establishing perfect conditions for the efficient booster heat pump operation.
The heat pump series is equipped with GEA Grasso 5 HP (50 bar), GEA Grasso V HP (39 bar) or GEA Grasso V XHP (63 bar) reciprocating compressors in either a single or duplex arrangement. It can be selected in different configurations with desuperheater and/or subcooler for optimized efficiency and reduced energy costs depending on the temperature difference of the heat carrier circuit. Adding a desuperheater allows supply temperatures up to +95°C / +203°F with V XHP compressor, +82°C / +180°F with 5 HP compressor and +70°C / 158°F with the V HP compressor technology.
GEA open type heat pumps are commonly added to ammonia refrigeration plants condensing between +20 and +40°C / +68 and +104°F. The heat pump series is supplied with a highly efficient oil separator which minimizes the oil carry-over to less than 5 parts per Million (ppm) and helps eliminate the mixing of oil between the refrigeration plant and the heat pump.
Highlights and technical features
- Heat recovery from ammonia refrigeration plants
- Heating capacity 300 kW to 3,500 kW / 1,024 to 11,942 MBH *)
- Hot water supply temperature up to +95°C / 203°F
- Pressure difference (of compressors) up to 30 bar
- Natural refrigerant ammonia (R717)
- Maximum design pressure 50 bar(a)
- Single or duplex reciprocating compressor arrangement
- Fully welded plate and shell condenser
- Heat exchangers are available with AISI 316L, SMO 254 or titanium plate material
- Different plate materials available (acc. media requirements)
- Subcooler and desuperheater options
- Separation vessel (no intermediate heat exchanger to refrigeration plant)
- Highest efficiencies, also at part load
- VSD drive
*) Heat carrier +35 and +65°C / +95 and +149°F, LP refrigeration plant condensing +35°C / +95°F
Learn more with GEA RT Select – our product selection and configuration tool.
GEA open type heat pumps
| Type | Heat
carrier (°C) | LP Conden-
sing (°C) 1) | Heating
capacity (kW) | COP 2) |
| inlet/outlet | at 1500 min-1 | line | ||
| 35 HP
| +35/+65
+70/+80 | 35.0
35.0 | 320
266 | 8.38
4.78 |
| 45 HP
| +35/+65
+70/+80 | 35.0
35.0 | 426
355 | 8.33
4.91 |
| 55 HP
| +35/+65
+70/+80 | 35.0
35.0 | 533
444 | 8.45
4.87 |
| 65 HP
| +35/+65
+70/+80 | 35.0
35.0 | 639
531 | 5.78
4.29 |
| 2x 45 HP
| +35/+65
+70/+80 | 35.0
35.0 | 828
709 | 8.19
4.90 |
| 2x 55 HP
| +35/+65
+70/+80 | 35.0
35.0 | 1036
887 | 8.19
4.89 |
| 2x 65 HP
| +35/+65
+70/+80 | 35.0
35.0 | 1242
1063 | 8.22
4.93 |
| V300 HP | +35/+65 | 35.0 | 879 | 8.51 |
| V450 HP | +35/+65 | 35.0 | 1317 | 8.53 |
| V600 HP | +35/+65 | 35.0 | 1756 | 8.59 |
| 2x V450 HP | +35/+65 | 35.0 | 2634 | 8.56 |
| 2x V600 HP | +35/+65 | 35.0 | 3511 | 8.59 |
2) COP (coefficient of performance) = heating capacity / electrical consumption at net
Related Products
Customized GEA heat pumps
Customized heat pumps are designed for optimized efficiency and a wide range of temperatures and capacities. They serve all common industrial applications and district heating. They are applied when special conditions or requirements outstrip the limits of our standard heat pumps.
GEA RedGenium
A proven performer becomes even better:
Higher temperatures, an enhanced capacity range, best-in-class efficiencies, increased sustainability at lower total costs – the new GEA RedGenium heat pump has it all.
GEA RedAstrum
GEA RedAstrum is the standard ammonia screw compressor heat pump that meets the increasing demand for efficient heating. The series is known for its wide capacity and temperature range. It features high-end components and a sophisticated, compact design.
GEA Blu-Red Fusion
GEA has launched an innovation that combines highly efficient cooling and heating in a single product. The new GEA Blu-Red Fusion is a combination of the successful GEA Blu chillers (low stage) and GEA Red heat pumps (high stage).
Service Products
GEA Omni Retrofit Panel
The intuitive touch for screw and piston compressor control. powerful, yet approachable. Cerebral, yet intuitive. Sophisticated, yet simple. Simply – GEA Omni.
GEA Ammonia Dryer
The GEA Ammonia Dryer removes water from the refrigerant cycle and makes the perfect addition to ammonia refrigeration systems along with filters and purgers.
GEA Purger
The GEA Purger removes non-condensable gases from your refrigeration system, maximizing system efficiency.
PR-OLEO® Premium-Quality Ammonia Refrigeration Oils
PR-OLEO® ammonia oils are the natural choice to optimize industrial cooling and heating applications operating with reciprocating or screw compressors.
GEA Service Kits for reciprocating compressors
Welcome to the world of simplicity with GEA Service Kits for reciprocating compressors. Our mission is clear - to make your experience with original spare parts seamless and your operations smoother than ever. "Take it easy, use a kit" is not just a tagline – it is a promise we deliver on.
GEA Insights
GEA minimizes dairy cow lameness with AI solution
GEA CattleEye alerts dairy farmers when cows are lame, enabling them to address health issues quickly to ensures optimal cow health and milk yield.
GEA solutions enable fiber-to-fiber recycling of textiles
Chemical recycling solutions from GEA allow mixed fiber textiles with PET to be recycled and made into new sustainable clothing.
Advancing continuous pharmaceutical manufacturing
GEA and partners innovate flexible continuous processing technologies, transforming pharmaceutical development and manufacturing for a modernized future.
