ULTRA HIGH-TEMPERATURE HEAT PUMPS
A significant share of energy consumption for heating and cooling used in industry, buildings and space heating continues to rely on fossil fuels. A large share of this heat can be supplied by high-temperature heat pumps (HTHPs) that reduce energy consumption by 50-70% compared to fossil boilers.
Industrial heat pumps are cost-effective solutions for generating heat and cold by absorbing thermal energy from low-temperature heat sources like waste heat or air and water. HTHPs generate more heat using a portion of electricity than direct conversions like electric boilers. HTHPs can directly produce high pressure steam, making them an efficient and cost-effective solution for heating and cooling.
Decarbonize now with Enerin’s ultra high-temperature HoegTemp® heat pumps. Enerin’s unique, patented technology and experience supplies industrial heat up to 250°C, with market leading efficiency and performance.
“The HoegTemp® seems promising as a reliable and energy-efficient heat pump that is able to deliver process heat with temperatures as high as we require."
— Product and Process Developer Ola Flesland at Pelagia AS
HEAT PUMPS ARE NOT DESIGNED EQUAL
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The HoegTemp® heat pump uses a Stirling system where the helium working fluid, or gas, is repeatedly compressed and expanded by double-acting pistons in a dry gas-phase system undergoing isothermal compression. This is a process of moving heat between objects or substances so slowly that the thermal equilibrium is maintained. A dry process is not limited by the compatibility of lubricants like conventional heat pumps.
The Stirling system is ideal for high-temperature applications largely because it operates in a closed-loop system that moves the same gas back and forth rather than relying on a phase change material or conventional refrigerants. Because of this, the HoegTemp is able to achieve its impressive single step lift process between greatly varying source and sink temperatures. The Stirling machine is compact and cost-efficient. -
Helium (R704) is an inert natural, safe refrigerant, which means that it is non-flammable, non-explosive and non-toxic, with zero Ozone Depletion Potential and Global Warming Potential. There is no lengthy health and safety approval process that adds to total cost.
Helium is an ideal, noble gas – stable and unreactive to other elements. It has the lowest boiling and melting points. This makes HoegTemp® invulnerable to changing conditions and equally good at all temperatures. It does not lose its heating capacity when it is cold, like other heat pump systems. -
The HoegTemp® is as flexible and as easy to control as a boiler. It can be adjusted by a factor of two, in seconds, and from zero to full capacity in minutes. There is no internal process that needs time to adapt to changes in demand, just heat exchangers that react instantly.
The heat pump can supply steam, hot water or thermal oil up to 250°C (482°F).
The heat pump can be stopped immediately.
40% — 100% in seconds.
0% — 100 % in two minutes.
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It is able to achieve a one step temperature lift process for steam, hot water and thermal oil up to 250°C (482°F), from sources as low as -30°C (-22°F).
It wins in efficiency for temperature lifts over 176-212°F (80-100°C), achieving a 50 to 70% energy saving which makes it versatile for many settings. -
Because the HoegTemp® operates at lower temperatures with less loss of efficiency and heat output, the frequency of vital defrosting cycles is reduced. Using multiple outdoor fan coil units with separate glycol loops and available steam heat makes defrosting fast and efficient, without interrupting the heat pump’s operation. This results in less down-time and energy losses compared to other heat pumps.
V6
500 kW ≈
1700 MBH
V12
1000 kW (1MW) ≈
3400 MBH
Waste heat can be captured as a free by-product in the form of steam, or it requires a cooling tower that cools the heat before it is blown into the air. Greater energy efficiencies can be leveraged with heat pumps enabling simultaneous heating and cooling.
e-ANALYSIS
Map energy flows and the consumption of energy including gas, oil and electricity.
Assess the waste heat from the product process stream, which is a measurement of the emissions to water and air.
Install Thermonitor, our measuring and logging system or use a system from a consultant.
Thermonitor measures electric energy, flow in liquids and gases, pressure and temperatures.
Assess the optimal thermal energy plan with zero-waste using cooling water, waste heat, and circular solutions for heating and cooling in the plant.
Replace the consumption of gas and oil in processes with HoegTemp steam and water heat pump solutions.
IMPLEMENTATION
Heating capacity: 250 kW to 1MW per module. Multiple modules can be combined for larger capacities.
Source temp: -30°C (-22°F) to 130°C (266°F).
Power, steam line and water circuit. Bypasses costly retrofit engineering.
Standardized & modular unit: easy, containerized installation and automatic operations.
The HoegTemp heat pump measures 3m x 4m x 2m high (9 ft x 12 ft x 6 ft).
The 2.5m (8ft) height for service space bypasses need to build a special technical room.
HoegTemp requires minimal assembly and installation (approx. one day), and eight hours yearly maintenance on site.
BENEFITS
High-energy savings without re-designing the plant and processes.
High energy efficiency (COP) at high temperature lifts for steam or hot water up to 250°C (482°F). Power control similar to boilers. Fast control response.
Utilizes end-of-pipe waste heat or ambient heat from air or water, and delivers process heat directly to existing steam lines.
Robust to varying operating conditions using
R-704 Helium – safe, inert, non-toxic, zero ODP, zero GWP.
Thermal energy storage and photovoltaics can be integrated on site.
Norwegian energy consultants validated Enerin to have best overall payback.
CUSTOMER’S
PERSPECTIVE
The HoegTemp high temperature heat pump is replacing the use of gas in the steam boiler and by this reduces the overall carbon footprint of IVAR biogas plant Grødeland.
“One of the biggest advantages of the HoegTemp is that the heat pump is retrofittable without major changes to the existing steam supply system. This makes it very suitable for the supply of the absorber-stripper system (CO2 removal from biogas) which uses steam at 2 bar pressure,” IVAR engineer, Per Ivar Aarrestad, says.
“Norway and Europe are facing increased electricity prices. This situation favours the use of heat pump technology over the use of electrical boilers. IVAR is therefore considering the use of steam generating heat pumps as a key technology when decarbonising its biogas plants.”
“THE HOEGTEMP HIGH TEMPERATURE HEAT PUMP IS REPLACING THE USE OF GAS IN THE STEAM BOILER AND BY THIS REDUCES THE OVERALL CARBON FOOTPRINT OF IVAR BIOGAS PLANT GRØDELAND”
— IVAR engineer Per Ivar Aarrestad
Contact us
Enerin AS Asker
Lensmannslia 4,
1386 Asker
Norway