HIGH-CAPACITY HEAT PUMPS
FOR HIGH TEMPERATURES
in large-scale buildings, industry, power plants and process technology
OCHSNER
POTENTIAL
Economic, ecological and ethically convincing
»» RESPONSIBILITY
Increasing energy costs are presenting industry, commerce,
trade and above all local authorities with huge challenges.
The energy costs for space heating and air-conditioning or
process heat represent by far the highest cost factor. The
decision-makers are also being required to save primary
energy and to reduce pollutants and CO2 emissions. Renewable energy from ambient warmth or exhaust heat utilisation
will in the long run guarantee the supply of energy economically, efficiently and without risk. The new generation of heat
pumps are the ideal solution for heating and cooling buildings in the most efficient and inexpensive fashion.
»» READY FOR ACTION
The technology is perfected, proven and available. The Town
Hall of Zurich has, for instance, been heated by water from
the Limmat River using a heat pump since 1937. The technology does not need to be subsidised and has no negative
ecological, economical or ethical side-effects.
Page 2
Using OCHSNER heat pumps, the Guidelines for Primary Energy
Efficiency (Energy Building Certificate) are achieved in an inexpensive fashion, without having to compromise as far as the building
fabric is concerned. This has often to be maintained, even during energy-system renovation (building conservation orders etc.).
Compared to heat insulation, the energy-system renovation by
means of a heat pump usually costs significantly less, although
the same savings of primary energy and operational costs as well
as CO2 reduction can be achieved.
»» ECONOMY
Due to the absolute minimising of the operational costs for
heating and cooling, we provide economic building technology and increase the value of the building significantly. Whilst
heat pumps for single-family houses represent the most used
heating technology in many places, the broad use in largescale buildings as well as in industry and commerce has still
to be realised.
»» EFFICIENCY
Due to the savings in energy and operational costs achieved
in comparison to conventional heating or cooling systems,
the use of high-capacity heat pumps is especially economical
and environmentally friendly.
A further essential usage potential of heat pump technology
for increasing energy efficiency lies in energy and power plant
technology as well as in district heating networks.
Chemical, mechanical, endogenous and exogenous processes of
all kinds can be used as heat sources or heat sinks.
Exhaust heat of all kinds from exhaust air, cooling water or heat
from waste water can be used meaningfully with heat pump
technology.
Decisive advantages
»» The heat pumps provide decisive advantages for
building energy certificates.
»» Ecodesign Energy label documents the energy
efficiency of a heat pump.
OCHSNER stands for highest efficiency,
operational safety and longevity.
OCHSNER
INNOVATIVE TECHNOLOGY
Fit for future
OCHSNER industrial heat pumps work efficiently and are environmentally friendly, achieving low operating costs, maximum
operational safety and longevity.
Components of the highest quality, decades of experience and
a simple, compact design are the basis for energy efficiency,
operational safety and customer satisfaction.
Page 4
During the past years, OCHSNER has continuously
re-engineered its high-capacity heat pump series.
The aim of this research and development program was
especially
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to increase the COP values
to increase the flow temperatures up to 95°C
to expand the operating limits
to provide maximum operational safety / availability
to optimise the control characteristics
to optimise the dimensions and weight
to reduce noise emission
and to secure telemonitoring
Regulation and control technology
» T
he control terminal with LCD-display allows the reading of
all in- and outputs, the changes in operational temperature
as well as the acoustic and optical display of all malfunction
reports.
» The control has been developed especially for the high-performance compressor with Economizer in heat pump operation, as well as for the two-stage high-temperature refrigerant
circuit resp. turbocompressor. All measured values are monitored and regulated continuously and in real time.
» SmartGrid compatible
»
Communicable control for the simple integration in the
building management system for networking by means of
LonWorks®, Modbus®, BACnet.
»
Continuous telemonitoring and registration of the operation
conditions via Internet or LAN by means of the OCHSNER
supervision system (accessory)
In-house testing station for high-capacity heat pumps
»Full-load testing with test protocols under field conditions up
to 800 kW
» Testing to EN 14511 – provides security!
OCHSNER
PRODUCT OVERVIEW
Series ISWS, IWWS
With screw compressor
65
Compressor
» Semi-hermetic compact screw compressor
»Twin-shaft rotation displacement machines with asymmetric
high-performance profiles
» Slide-switch control, rotation speed control (optional)
»High operational safety by means of efficient force-fed
lubrication
» Maintenance-free operation
»Mechanical soft-start using pressure compensation whenever
the compressor is switched on
Series IWWT, ISWT
with turbocompressor
50
Compressor
» Turbocompressor, two-stage
» Oil-free operation via magnet bearing
» Highest possible COP in partial-load operation
»Exact adjustment of performance to the heat load of a system
by means of speed-controlled drive (continuously variable
rotational speed control – 18,000 to 48,000 rpm)
»Lowest noise emission – sound pressure level at 1 m
distance: 78 dB(A) at 350 kW performance
» Lowest staring current
Series High-temperature IWP 95
with screw compressor
95
Compressor
» Screw compressor in special high-temperature design
Electronic OeCC injection technology
(OCHSNER electronic Cooling Cycle Controller)
»Injector for evaporator and Economizer
» Highest COP due to precise overheat control
»Maximum evaporator utilisation due to stable overheating
throughout the complete operational range
»High security due to full compressor protection
(no liquid slugging)
Page 6
Electronic OeCC injection technology
(OCHSNER electronic Cooling Cycle Controller)
» Injector for evaporator and Economizer
» Highest COP due to precise overheat control
»Maximum evaporator utilisation due to stable overheating
throughout the complete operational range
»High security due to full compressor protection (no liquid
slugging)
OVI-Technology (OCHSNER Vapour Injection)
»Super-cooling circuit with partial flow vapour injection
» Increase in heating capacity by increased mass flow
» Flow temperatures up to 65°C
Refrigerant circuit
»Tube-bundle heat exchanger as evaporator and condenser
Capacity range
»
120 kW bis 1 MW
Electronic OeCC injection technology
(OCHSNER electronic Cooling Cycle Controller)
»Injector for evaporator and Economizer
» Highest COP due to precise overheat control
»Maximum evaporator utilisation due to stable overheating
throughout the complete operational range
» High security due to full compressor protection
(no liquid slugging)
OVI-Technology (OCHSNER Vapour Injection)
»Super-cooling circuit with partial flow vapour injection
» Increase in heating capacity by increased mass flow
» Flow temperatures up to 50°C
Refrigerant circuit
» Tube-bundle heat exchanger as evaporator and condenser
Capacity range
»
220 KW UP TO 385 KW
OVI-Technology (OCHSNER Vapour Injection)
2-stage refrigerant circuit
»Super-cooling circuit with partial flow vapour injection
»Increase in heating capacity by increased mass flow
» Flow temperatures up to 95°C
»For heat source temperatures from, for instance, 10°C and
heating system flow temperatures up to 95°C
» Tube-bundle heat exchanger as evaporator and condenser
» Plate heat exchanger used as interim heat exchanger
» Refrigerant: 1st stage R134a, 2nd stage Öko 1 (HFC), low GWP
» Special start-up control
Single-stage refrigerant circuit
»For heat source temperatures from 35°C to 55°C and heating
system flow temperatures up to 95°C
»Tube-bundle heat exchanger as evaporator and condenser
»Refrigerant: Öko 1 (HFC), low GWP
Capacity range
»190 kW up to 750 kW
OCHSNER
APPLICATIONS
Heating, cooling, energy recuperation in buildings, commerce, sports facilities
»» LARGE VOLUME BUILDINGS
Heating and air-conditioning of office buildings, residential
buildings, administrative buildings, educational establishments, hospitals, supermarkets, warehouses, manufacturing
facilities etc.
»» CATERING INDUSTRY AND SPORTS FACILITIES
Heating for accommodation areas, swimming pool heating,
hot-water heating, air conditioning. Short pay-back periods
due to continuous high heat loads.
»» AGRICULTURE
Heating of greenhouses or pools for fish breeding
»» INFRASTRUCTURE
Icing prevention on roads, railroads, concrete roads, grass
and sports fields
Page 8
Heat source renewable
ambient heat
Heat source
exhaust heat
» Ground water
» Soil
» Outside air
»
Exhaust heat from server
rooms / IT
»
Climate systems / cooling
network (in house)
»
Exhaust air (in house)
»
Communal waste water sewers
Heating and cooling
Exhaust heat is at present largely unused and burdens the
environment. In many buildings, heating and cooling is required
at the same time. Instead of generating heat with a fuel-fired
furnace and parallel to that cooling with cold water, the heat
pump can fulfil both functions (heating and cooling) at the same
time. In the process, unbeatably high energy efficiencies with
unsurpassably low operating costs result.
OCHSNER
APPLICATIONS
Energy recuperation from process and exhaust heat in industry, process and power station engineering
»» Utilisation of low-temperature exhaust heat (up to
30°C) in order to generate room and process heat
(up to 95°C)
Low-temperature exhaust heat, which cannot be reutilised
using conventional heat exchangers, is available in large
quantities, especially as a result of mechanical processes or
cooling processes in the chemical, pharmaceutical and food
industries. Using heat pumps, this low-temperature exhaust
heat can be efficiently brought back up to a useable temperature level.
»» The heat pump circuit as a cooling process
The heat pump circuit can, as a cooling process, in many
cases usefully replace cooling towers and other energy
destroying systems. If heat (up to 95°C) is then needed at the
same time in other parts of the process, the highest COPs and
thus the highest energy efficiencies are the result.
»» Hot water heating up to 95°C
For food industry, dairies, abattoirs, beverage industry etc.
»» Utilisation of medium-temperature exhaust heat
Use of waste
process heat
Process
heat input
(35 - 55°C)
From flue gas (heating plants), from the return pipework
of district heating networks, chemical processes as well as
power station processes in order to generate process heat or
district heating up to 95°C. For the first time, heat flows at this
temperature level can be used and flow temperatures of up to
95°C economically generated.
OC
If the heat pump is working in
the heating and cooling mode
simultaneously, the COPs can
be added together.
Heat pump
Heat source
Cooling function
Heat sink
Heating function
OCHSNER
REFERENCES
Implemented OCHSNER-Projects
»» VATTENFALL HAMBURG
»» MEGABAUMAX SALZBURG
»» FRONIUS WELS
»» ENERGIE AG
»» ALTES RATHAUS (OLD TOWN HALL) BONN
»» ÜBERLANDWERK KRUMBACH
Heat source EDV-Server room, Heating capacity 2x 360 kW,
Cooling capacity 2x 245 kW
Heat source ground probes, heating capacity 375 and 170 kW,
Cooling capacity 395 and 203 kW
Heat source ground water, heating capacity 142 kW,
Cooling capacity 157 kW
Page 10
Heat source ground water, heating capacity 327 kW
Heat source ground water, heating capacity 337 kW
Heat source waste water sewer, heating capacity 120 kW
Energie AG Linz
Vattenfall Hamburg
Megabaumax Salzburg
Citigroup Frankfurt
»» STADTWERKE AMSTETTEN
»» EVANGELISCHE GEMEINDE BONN
»» CITYGROUP FRANKFURT
»» ROSENZUCHT DEPARTMENT VAR
»» GEMÜ EMMEN
»» ...
Heat source waste water sewer, heating capacity 228 kW
Heat source cooling water, heating capacity 2x 175 kW
Heat source ground water, heating capacity 930 kW
Heat source ground water, heating capacity 2x 130 kW
Heat source breeding pool, heating capacity 440 kW
W757e P 02/2015
Subject to technical changes, as well as type and printing errors.
Zentrale/Werk
Ochsner-Straße 1
A-3350 Haag
Tel: +43 (0)5 042458
Fax: +43 (0)5 04245-349
Endkunden-Hotline: +43 (0)820 201000
[email protected]
www.ochsner.at
OCHSNER
Wärmepumpen GmbH Deutschland
Elxlebener Weg 10
D-99310 Arnstadt
Tel: +49 (0)3628 6648-0
Fax: +49 (0)3628 6648-497
Endkunden-Hotline: +49 (0)1805 624763
[email protected]
www.ochsner.de
OCHSNER East
PL 30-198 Kraków, Zakliki z Mydlnik 16
Tel: +48 (0)12 4214527
Fax: +48 (0)12 4212809
[email protected]
www.ochsner.pl
identity.co.at
OCHSNER
Wärmepumpen GmbH
(Firmenbuch)
Krackowizerstraße 4
A-4020 Linz
[email protected]
www.ochsner.at