Steam Generation Technology with Major Energy and Water Savings. Elegant Power Management and flow settings with tested automation controls in the OAB-var and MightySteam.
Available from low kW to MW for both low and high steam flow requirements. Easy to operate: set the flow and temperature, then press start. Quick start-up and shut-down help save energy overall.
Reduce the carbon footprint of steam generation to zero through deep decarbonization. Eliminate GHGs. Monitor load on the HMI display. Set maximum power and control energy costs with novel control philosophies enabled by patented materials and processes.
The versatile OAB-var and MightySteam significantly simplify optimizing any steam generation process. 
What are the advantages of an electric steam generator over a conventional boiler? A highly compact steam generator, such as the OAB-var or MightySteam, lets you control power, steam flow rate, and exit steam temperature. Steam generators enable process optimization through precise temperature control, enhanced energy efficiency, pressure variability, steam-flow-rate control, and desired pulsing. They can turn on and off quickly, require minimal to no idling, and deliver unrivaled durability. It’s an excellent solution for high-usage operations, designed to withstand thermal expansion and eliminate steam leak points.
Click for Typical Electric Steam Generator Product Models
Use a modern steam generator when the application requires the following:
- The steam quality required is higher than that from saturated steam for improved productivity, chemical cleanliness, power delivery, and antibacterial efficacy.
- When energy efficiency is critical, compare the energy used to heat water from room temperature to the temperature at which it is used.
- For comfort heating with high energy efficiency*. MHI’s electric process heaters are carefully designed for optimal, reliable performance and require no lubrication or soot removal, minimizing maintenance.
- For processes that need variable temperature and variable flow rate, e.g., drying, chemical reactions, fuel production with reaction temperatures as high as 1200 °C for steam. Several new processes utilize steam at temperatures exceeding 500 °C. Productivity and process efficiency often increase with temperature.
- For clean steam use in pharma or food sectors. Clean steam applications require dry steam, meaning no water (or dissolved impurities) in the steam.
- Modern installations use touch-screen controls to activate and regulate steam (instead of struggling with several rusted, stuck valves). Such features improve efficiency and productivity.
- Local steam codes meet UL, ASME, and CRN regulations.
- Directly control steam processes and humidity. Instant steam generators sense signals and automatically regulate steam rate and set temperature.
- Introduction to Steam and Humidity, Steam Generators and their Applications
When burned, one kilogram of natural gas releases 2.75 kilograms of carbon dioxide (CO2), and one cubic meter of natural gas releases 1.9 kilograms of CO2, or 380 kilograms of CO2eq. The social cost of CO2 emissions is very high.
Annual USE Cost Example (OPEX). This is only an example and may not apply to your situation.
For CAPEX costs, please get in touch with MHI and factor in much lower ancillary equipment and significantly less tubing.
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Changing From Fossil Fuel Boiler to Electric
For CAPEX costs, please contact MHI and factor in much lower ancillary equipment and significantly less tubing. |
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Assumptions for OPEX:
· The steam is required intermittently throughout the day · Existing 500 BHP natural gas boiler · One standby boiler kept hot · Steam distributed throughout plant ______________________________ Annual Cost Example Results Even though electricity is assumed to cost three times more than natural gas on an energy basis, the total annual operating cost can still be significantly lower because:
Electric steam generators include an HMI controller for control and information. No need for a separate Boiler Management and Control.
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Please specify output temperature (choose saturated to 1200C (2200F) or more)
GOAB-6 Variable flow (2-6 Kg/hr. Steam)
OAB-4 Fixed flow 4 Kg/hr. Steam
OAB-Var 25 Kg/h 750C (15-25 Kg/hr.) – syngas production starter model.
OAB-460-Var Models (240-460 Kg/h Steam)
OAB-750-Var-Models (360-660 Kg/h Steam)
OAB-1200-Var-Models (1.2 Tons/h Steam)
OAB-2700-Var-Models (3 Tons/h Steam)
Video: OAB Unit 360 view (download)
PLC- HMI – Automation
Technical Specifications of Steam Generators
| Model | Image | Temp. Range | Pressure Rating | Efficiency (nominal best to use only as an approximate guideline) |
Application |
|---|---|---|---|---|---|
| MightySteam and OAB var (variable) steam temperature models
Premium model with variable flow rate and temperature features. Heavy industrial use. |
OAB Electric Steam Generators. Decarbonized. |
Up to 1200°C Models from 5 kg.hr to tons/h, kW to MW Modern electronic flow rate valves and HMI settings. | Atmospheric- 40 bar back pressure | High 95%+
Modern Power Management Ai driven software for High Flow Rate Units. |
Sterilization, chemical processing, food industry, CPG packaging. Pharmaceutical, textiles, HVAC, Testbeds. More Information |
| HGA-S or OAB fixed flow models for innovation prototyping. |  HGA-S-01
|
300-1200°C 1 kg/h with steam side valve or OAB, fixed flow 4 or 12 kg/h (fixed) with steam side valve. 750°C temperature |
Atmospheric | 95%+ | Sterilization, chemical processing, food industry, CPG packaging. Pharmaceutical, textiles, HVAC, Testbeds. More Information |
| HGA-M
Steam -gas mixtures |
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300-600°C 1 kg/hr. or 4 kg/h. Steam -gas mixtures |
Atmospheric | 95%+ | Medical sterilization, laboratory applications, and mobile applications More Information |
*Our experience indicates that an electric steam generator can be almost 50% more efficient in energy use than a fossil fuel steam generator and 25% more efficient than a conventional electric pressure boiler. (Approximate comparison only – individual situations can vary – please get in touch with MHI for details and assumptions used – Note 1 BHP~9.6KW.
Where a fuel-fired steam boiler or any other fossil fuel-based heater operates appropriately with a predictable maintenance schedule, the proper inspection takes weeks with highly experienced technicians and specialized tools. This means production downtime, which is the most significant cost to industrial facilities. In unexpected failures, plant shutdown can take longer, contributing to more opportunity costs. Electric systems are far less complex.
Depending on the assumptions for CO2 emission costs, an electric steam generator will likely cost less and operate with lower costs than conventional boilers.
Click for Electric Steam Generator Product Model Numbers
Electric Steam Generator. High Efficiency.
Reduce water wastage with the OAB MightySteam smart steam generator. Easy to install, simple to use, and cost-effective. Optimize—use only the water you need—and save considerable energy.
Contact MHI. Choose from single-phase (1 -20 Kg/h (kW systems) to three-phase (25-9000Kg/h, MW power systems). Please specify the temperature, flow rate range, and required back pressure. Temperature choices from 150°C, 200°C, 300°C, 550°C or 750/800°C and 1300°C.
Steam Generator Models.
- OAB® Models. 60 kg/h – 10,000 kg/h. steam
- GOAB Models: 2 kg/h – 40 kg/h.
- Laboratory 1 kg/h Models. Steam HGA, Steam-Air Mix HGA-M.
Is it time to upgrade to a more reliable, easy-to-use, instant electric steam generation system with built-in modern energy-saving features? Upgrade to a generator that offers independent control over the steam flow rate, temperature, and backpressure. MHI high-temperature steam gives everyone easy access to clean steam free of boiler residue, chemical or bacterial contaminants, and other undesirable solid substances.
Unlike conventional boilers, patented MHI steam generators make instant high-quality, superheated, dry steam above the inversion temperature.
Flexible steam characteristics improve energy efficiency, process control, and water savings. MHI steam generators with touch-screen inputs offer features like electrical on-off (on-demand steam) and management of steam operations with signals from external sensors (humidity meters, concentrators, valves).
Industrial Models.
High Tonnage OAB
- GOAB™ with variable temperature and variable steam rate adjustment. Several models.
Today, the need for high-quality, clean electric steam also includes zero emissions, high energy efficiency, and minimal spatial footprint requirements. The MightySteam® and OAB® steam generators produce non-condensing steam above the inversion temperature. Because there are no liquid droplets, the steam is of high quality. This improves steam performance for pharmaceutical use, clean comfort, and utility.
When converting from fossil fuel energy to electric energy, steam generation, the following aspects may be helpful to consider:
- The OAB® steam generators operate at 98% or better efficiency at typical utility-steam temperatures. Because efficiencies are higher for the same energy use, please consider whether the required power can be reduced when converting to electric steam generators.
- Electric boilers are small and emit no gas. Therefore, you can use several smaller electric boilers instead of one large boiler.
- Electric steam generators’ on-off capability, variable temperature, and variable flow-rate features can help save energy.
- High-temperature steam, typically from electric steam generators, can accelerate several chemical processes for higher productivity gains. The steam generator does not need to operate at high pressures to produce high-temperature steam.
With this modern, energy- and time-saving steam generator, you don’t need superheaters or boilers to reach 800°C+ for high-quality, clean steam. There are no combustible fuel oils or gases, no intense magnetic field, and no heating of flow pipes by induction. The measured temperature is that of the steam, not the line.
Self-cleaning systems – save on downtime and labor hours.
Click here to send us your requirements for a variable steam rate, variable temperature, variable backpressure, and instant on-off steam generation. Temperature choices from 150°C, 200°C, 300°C, 550°C or 750/800°C and 1300°C.
R&D and Process Development Models.
- 1 Kg/hr with temperatures from low to 1300C.
- 4Kg/hr and 12Kg/hr Fixed Steam Flow Models
- 6 Kg/hr and 12 kg/hr variable flow steam and temperature up to 800C and beyond.
- Click for mixed Air-Steam models HGA-M
- Click for Steam Chambers for R&D
Clean Manufacturing
High-temperature steam Integrated
Link to a Brief History of Steam Production Methods
Introduction to various types of steam and humidity
Why is the MHI Electric Steam Generator Efficient? The HGA, GHGA, and OAB® steam generators are the result of decades of intense R&D and customer acceptance. These modern steam generators use surface-enhancement nanotechnologies, optimized high-impact heating materials, unique designs, and efficient control electronics. MHI Inc. holds several current patents in materials and heater designs. The graph below shows one example of MHI’s significantly improved materials in its build.
Deep Decarbonization and High Efficiency with MHI Steam Generators: Unlike traditional boilers, which lose significant efficiency with pressure, Steam generators typically operate with high efficiency and allow operation at the minimum back process pressure required, regardless of steam-output temperature. The efficiency is higher than 95%, even close to 98%, with rapid heat-up within minutes for dry steam, touch-screen safety features, zero CO2, and zero NOx. The generators offer variable steam flow and variable back pressure for constant temperature. The units are built to the highest level of user-preferred ASME codes. They support modern Ethernet protocols and electrical code compliance. Contact MHI.
MHI Electric Steam Generators are clean: Older steam boilers are fuel-fired (fossil-fired) and may use biofuels, coal, natural gas, and byproduct materials. The composition of exhaust gases depends on the fuel type and may require cleaning treatment if it contains pollutants such as CO2, CO, SO2, Soot, Ash, NOx, and particles. MHI steam generators do not produce or emit these. Traditional boilers require boiler rooms and a certified workforce. Compare energy efficiencies of different methods of making steam.
The patented MHI nano-material treatment of boiler steel materials shows a significant decrease in humid air oxidation and steam oxidation rate at high temperatures.
The MHI Steam Generators work hard for you. Depending on the model, they monitor incoming electric phase variations, steam temperature, and steam flow rate; display any developing faults; and accept a host of user input controls. They even monitor water quality.
OAB steam generator software control
Steam Superheaters, Low-Pressure Steam Generators, Industrial Electric Steam Generators for Utility and Process use, High-Pressure Steam Generators, Steam Generators, Electric Steam Generator, Superheated Steam Generator, Clean Steam Generator, Steam Generators, Inline steam, Shrink Fitting for Packaging.
Modern Steam. MightySteam® products reduce the price of high-quality steam. Enjoy high conversion efficiencies, and save water.
Modern PLC, SCR, HMI (touch screen) operation. Remote communications and control.
MightySteam® Products (Industrial and R&D Use)
MigthySteam® Controlled Humidity Products (Commercial Use)
Use less energy for the same outcome.
Energy savings with steam for deep decarbonization.
Energy Content and Combustion Efficiency of Fuels that are Used for Steam Generation.(Source) |
Comparison of CO2 Emissions One million BTU of fossil-fuel combustion energy (i.e., ~1055055 KJ) can make ~380 Kg of 100°C steam. The mass of carbon dioxide in lbs., produced with one million BTU, is given below. |
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| Fuel Type /Energy Unit | Typical Temperature of Steam | Conversion Efficiency, %. Common Range. | Idling Required | Requirement of Super-structure and Water Feed Treatment. | ||
| *Natural Gas/ MMBtu | 100-132°C | 80-86 | Yes | Yes | ~117 lbs | |
| *Coal/ Ton | 100-121°C | 75-90 | Yes | Yes | ~163 lbs. | |
| Electric Steam Generator/ KWh
MightySteam® Products |
100°C – 1300°C
Steam pressure and temperature are independently set. Variable flow rate settings. |
96 – 99 | No | No | 0 lbs. (zero) | Clean Steam |
Brief History (Chronology) of Disruptive Steam Production Methods
Instant high-temperature, variable steam, and variable backpressure.
Compare steam production methods.
Save energy and water.
On-demand rapid high-temperature steam generation.
Compare Traditional Steam Boilers to Modern Steam Generators
Steam generators are versatile. They are open-flow systems where the steam rate and back pressure can be preset. The working of the steam generator does not require pressure as an independent variable. When a pressure rating for the steam generator is specified, the rating indicates the pressure tolerance of the system. There is a lot of flexibility for applications. A pressure setting (value) can be input (user input) before the start of a cycle. This pressure setting may be the on-off trigger to turn off the generator for maximum process pressure. Or it can be an RH trigger from downstream. The unit can be preset to automatically start again quickly and make high-temperature steam if the pressure or RH value falls.
Click for Steam Generator Models.
Smart Controls for Steam Generators
Model |
Temperature Range| |
Back Pressure Rating| |
Efficiency(nominal best to use only as an approximate guideline)
|
Applications(click for learning types of steam, steam industry nomenclature and applications)
|
MightySteam®OAB®
(0r scroll below) |
Up to 1200°C |
Atmospheric- 40 bar |
High 95%+ |
Sterilization, chemical processing, food industry, CPG packaging.Pharmaceutical, textiles, HVAC, Testbeds. |
HGA-S
|
300-1200°C |
Atmospheric |
95%+ |
Research and development, material testing, food testing chambers |
HGA-MHGA-M-01
|
300-800°C |
Atmospheric |
95%+ |
Medical sterilization, laboratory applications, mobile applications, |
Steam Connectors
