OAB - Superheated Steam Generator

Steam Generator Comparisons

Steam Generator Comparisons

Feature	One Atmosphere Boiler	Water Tube Steam Boilers	Electric High Pressure Steam Boilers
Maximum Steam Temperature1	300-1300°C Standard	600°C with Economiser and Superheater	134°C for 3 bar steam
Efficiency	~95%	<90%	~85-95%
Idle Energy Waste	Low	High	Moderate
Non Steam Producing Energy Usage Time (Start Up Time2)	Nearly Instant	60+ Minutes. Becomes slower with higher pressures and volume requirements	~60 Minutes. Becomes slower with higher pressures and volumes. (Not including cool down and pressure release for autoclaves)
Suggested Inlet Temperature3	Tap	40-60°F	20-35°C
Capital Cost per Kg of Steam3	Low	High	Moderate. Depends on temperature/pressure required.
Operational Costs4	Low	High	Low-Moderate
Unit Footprint	Starting at 1'x1'x1'	Large	Depends on size and pressure requirements.
Plug & Play Operations	Yes	No	No
Requires Boiler Certifications5	No	Yes	Yes
Downtime6	Low	Low-Moderate	Low
Utilizes Combustion7 (Requires Ventilation)	No	Yes	No
Energy Needed to produce 100 Kg/hr steam from cold start	~100 kWh	~150-200 kWh Equivalent (Inluding start up time consumption)	~150kWh Equivalent (Inluding start up time consumption)
Power Weight [Kg Equipment/(Kg/hr) of steam] for a 100kW Generator	~2 Kg per Kg/hr of steam	~5 Kg per Kg/hr of steam (Weight increases with temperature/pressure)	-
Maximum Work Potential (Based on second law limitation)  Base is 1 Bar 100C liquid water for all.	672 kJ/Kg for 500°C superheated steam 1973 kJ/Kg for 1300°C superheated steam	755 kJ/Kg for 10 Bar saturated steam 1169 kJ/Kg at 100 Bar saturated steam	Generally not used for creating work.
Enthalpy (heat) Content	3489 kJ/Kg for 500°C superheated steam at 1 Bar	2777 kJ/Kg for 10 Bar saturated steam Saturation steam temperature 180°C	2725 kJ/Kg for 3 Bar saturated steam Saturation steam temperature 311°C
Running at Partial Capacity	With MHI Electronic Controls, No loss of efficiency	Significantly lower efficiencies, if model is capable	Lower efficiencies
Air Contamination Effects	Extremely high operation temperatures diminish effects of air	Air contamination harms output	No air contamination is allowed (strict)
Piping Losses	Discrete, locatable units reduce necessary piping. Low, 1 atmosphere pipe pressure.	High pipeline pressure combined with long piping distances leads to heat loss and dangerous conditions in the event of pipe failure.	High pipeline pressure combined with long piping distances leads to heat loss and dangerous conditions in the event of pipe failure.

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¹Maximum Steam Temperature obtained from production models; includes the use of superheaters.
²Time from a cold start to reach maximum operating temperature.
³Capital Cost per Kg of Steam calculated by dividing device output by device cost. Similar magnitude output devices are used. Prices used in calculations are general estimates obtained from public sources.
⁴Operational Cost per Kg of Steam calculated by dividing output by resources consumed, excluding water. Resources assume prices of $0.09/Kwh and $5/1000 cuft for Natural Gas.
⁵Boilers using high pressure vessels require annual inspections and certification certificates. Pressure certificates, ASME and local goverment regulations vary. Because One Atmosphere Boilers do not utilize pressure to generate steam, they do not need certifications.
⁶Most boilers require routine cleaning and inspections that impact uptime.
⁷Combustion byproducts include NOx and other harmful gasses. Combustion restricts applications of many steam boilers.

Models

One Atmosphere Boiler Standard Models

 

If you want to simply play with a steam product while you generate ideas please purchase the TOAB-4-300, mant for robust plug and play.

Model	Amount of Steam Produced (Range)	Electrical Power	Specify Steam Output Temperature
OAB-4	4-6Kg/hr Steam	Single Phase Only Request Information	550°C, 750°C, 1300°C
OAB-12	12Kg/hr Steam	Request Information	550°C, 750°C, 1300°C
OAB-24	24Kg/hr Steam	Request Information	300°C, 550°C, 750°C, 1300°C
OAB-36	36Kg/hr Steam	Request Information	300°C, 550°C, 750°C
OAB-48	48Kg/hr Steam	Request Information	Call
OAB-60	60Kg/hr Steam	Request Information	Call
Custom - Higher Volumes	Custom	Request Information	Call
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Model Tankless One Atmosphere Boiler	Amount of Steam Produced (Range)	Electrical Power	Specify Steam Output Temperature
TOAB-4-300   With nanostructure technology	4-6Kg/hr Steam	Single Phase Only Request Information	300C Now priced at a discount price less than $8000 without control add controls for 50% discount on industry standard controller.
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All Control Systems Integrated: Easy to Install and Use

Single Phase 220/240V (XPAN) or Three Phase  (TRIPAN) for Common World-wide Voltages

Applications

Applications

One Atmosphere Boiler Suggested Applications
Hospital Use	Pilot Plant Steam Generator
Autoclaves	Cleaing Chemical Tanks
Steam Shower	Steam Reacting Agent
Pressing Iron	Steam Reforming
Clean Steam	Steam Generator
Laboratory Steam Generator	Food Processing
Food Processing	On Demand Steam
Superheated Steam Generator	Idle Steam
Steam Cracking	Process Steam
Viscous Material Handling	Endotoxin Free Steam
Tankless Steam Boiler

Traditional boilers yield saturated steam (Tsat and Psat are linked). Boiler efficiencies increase with lower pressures. At 10 Bar the saturation temperature is is 180°C. 

 

If the steam is for heating puposes, please compare the enthalpy row below.  If the steam is for work purposes please use the work potential row below, the work potential increases with both temperature and pressure.  Work potential is measured from 25°C base temperature.  The cost of boilers increases for very high pressure ratings.  Even at 100 Bars the  saturation temperature is only 311°C.

1 Bar =100000 Pa = 14.5 psi

10 Bar =1000000 Pa =145 psi

100 Bar = 10⁷ Pa = 1450.3 psi

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Superheated Steam Information
Desired output:	Pure Steam Air/Steam Mixture Other Gas/Steam Mixture
If other gas, specify:
Specific Temperature or Flow Rates of Interest:	(Leave blank if unknown)
Gas/air flow rate:	(If applicable)
Temperature range:	°F  °C
Output pressure desired:	Low Pressure at Velocity >1-5 bar at Steady Flow Unknown

Please describe your application and any limitations you expect in your water inlet quality so that we may recomend the most applicable model and control system.