In the majority of industrial applications the PSA oxygen generator must be delivered at a constant and economical rate. It is therefore essential to keep under control the flowrate, purity and pressure of the oxygen to keep up with the manufacturing requirements. Too small a generator could be overloaded in high demand situations; conversely a too large generator could result in larger capital expense and higher operating costs. Informed oxygen use knowledge of the process, equipment & production requirements, as well as the future load growth is therefore crucial to determine a suitable industrial PSA oxygen generator.
PSA oxygen generator capacity demand meets your company's production capacity like metal processing, glass making, and water treatment each use a different flow and purity of oxygen. Sizing that is accurate ensures you won't run short of oxygen during times of peak production and protects against buying equipment with excess capacity.
It further allows for a minimum wastage of compressed air and the consistency of operation to be maintained along with anticipated maintenance planning. By assessment of industrial oxygen demand you can choose a system that is appropriate for present needs with justifiable modifications in production.
An efficient PSA oxygen generator plant selection is based on the oxygen consumption, purity required, delivery pressure and any other operational condition. Assess these factors for understanding the right oxygen generator sizing required.
The process starts with the oxygen demand per machine/process. The equipment could be working simultaneously and should also have the peak demand of oxygen during the high-production levels, not just the average. Using this information you can work backwards to find your proposed generator size.
Oxygen flow rate is usually expressed in litres per minute (LPM) or normal cubic metres per hour (Nm³/hr). Comparing flow requirements to those of the generator is possible if the same conditions are assumed.
The flow rate necessary to meet the oxygen purity requirements will determine if you will need a different flow rate from the same generator. If an industrial process needs a much higher purity of oxygen, the flow rate from one generator could be different than it would be for another. Capacity has to be checked at each purity level.
You will need the oxygen supply pressure for your equipment to specify. The pressure required at the point of use and the pressure drops (head losses) in pipe, valves, and other pieces of equipment.
Daily operating hours can impact energy use, scheduling and the applicability of an Industrial oxygen generator capacity. Industrial process or scheduling considerations may require more attention to machine availability and controlled product delivery.
Additional machinery and normal seasonal loads. Consider future expansion. The allowed oversize is a compromise, since it will provide some margin for variations in conditions. Allow room for verified machine capability and truly anticipated changes.
PSA oxygen generator capacity calculation is the first step using all of the operating process oxygen consumption. The total demand must be converted to a flow basis, include any justified peak demands and then compared to the rated flow at the specified purity and pressure.
Document all the machines or processes that use oxygen and the flow rate they need. Sum all the equipment flow rate needed when all the equipment is expected to be in use at the same time.
Formula:
Total Oxygen Demand = Sum of Single Equipment Flow Rates
Demand calculation - Total demand in this case is 180 LPM (ie 60 + 80 + 40). But if the machines are to be operated in combinations, then check the demand for all the combinations of operation and find the maximum credible demand.
Oxygen flow rate calculation enables buyers to convert between, and compare to generator specifications with process demand expressed in different units.
When using average NLPM and Nm³/hr respectively conversion is:
- NLPM to Nm³/hr: NLPM divided by 16.67.
- Nm³/hr to NLPM: 16.67 (Nm³/hr) = NLPM.
For instance 180 NLPM ÷ 16.67 ≈ 10.8 Nm³/hr.
If flow is measured in actual LPM and not normalised litres, then initially the correct temperature and pressure should be taken into consideration. Always double check the reference conditions for flow measurement.
In addition to possible identified distribution losses, take into account PSA oxygen generator sizing estimates for production fluctuation, and possible transient consumption rates. In circumstances where projections are based on known operating figures, a capacity allowance could be appropriate.
Case in point A 20% allowance on a calculated demand of 180 LPM would require 216 LPM. This allowance should be regarded as a guide for planning purposes, not a standard industry figure. Final selection should be checked on rated oxygen delivery at the desired purity and pressure, and with respect to the ability to use stored oxygen to meet small shortfalls in demand.
Suppose you have a plant where three machines demand these levels of oxygen:
| Machine | Oxygen Demand |
|---|---|
| Machine A | 60 LPM |
| Machine B | 80 LPM |
| Machine C | 40 LPM |
| Total Demand | 180 LPM |
So if the two machines run at the same time the total is 180 LPM or about 10.8 Nm³/hr when converted to the same normalized basis as the flow.
With an estimated 20% capacity allowance applied, we get:
180 x 1.20 = 216 LPM, or about 12.96 Nm³/hr.
This oxygen generator calculation example provides an initial sizing target. The final PSA oxygen generator capacity should be confirmed by the manufacturer's rated output at the specified purity, pressure and site conditions.
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Expand Your Knowledge of PSA oxygen generator and Their Applications |
Understanding the specifications alone do not provide enough information to specify the right industrial PSA oxygen generator. The buyer needs to pay special attention to the following:
These criteria can be compared to choose the right PSA oxygen generator plant that best fits production demands at the lowest price. Obtained a technical detailed proposal prior to being the PSA oxygen generator plant accepted.
About Airox Technologies offers products, technologies and solutions for the generation of oxygen for industrial and medical applications, complemented by system design, manufacturing, installation, commissioning and after sales services. The products on offer are PSA oxygen generator plants and customised set-up designed according to the application.
Airox Technologies is the best option for businesses looking for PSA oxygen generator manufacturers in India to obtain technical advice and equipment selection. Buyers can communicate with its technical team about flow rate, purity of oxygen, pressure, compressed air supply, and increase in production.
Visit Airox Technologies to discover the range of products in the individual oxygen generators, oxygen plants and oil-free compressors line. Ask to compare model-specific specifications, rated outputs, power requirements, installation requirements and service terms, all based on the process conditions and flow rates.
Proper PSA oxygen generator sizing ensures your industry has an assured source of oxygen for your application at the most affordable energy and equipment costs. Compute the actual need, include potential peak flows and confirm rated performance before choosing an industrial oxygen generation system.
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Contact Airox Technologies for a technical discussion and a quotation based on your process requirements. |
Sum the flow rates of items operating at the same time, consider legitimate maximum demand and confirm the generator's rated capacity, at the desired purity and pressure.
LPM by 16.67. Make sure the reference conditions are the same for both the measurements and then compare these values.
An industrial PSA oxygen generator is chosen depending on the requirement of oxygen, purity, pressure, operating time, site conditions, maximum usage and growth.
Oxygen storage tank this is used to hold a reserve of oxygen for peak short demands of demand, even pressures and taking the strain off sudden load swings.
Yes, one generator can run several machines if the combined demand of rated oxygen flow, purity and pressure of each machine does not exceed the generator's rated flow.
Airox Technologies' PSA oxygen generation solutions and services provide you with the necessary details you need when determining capacity, purity, pressure, and installation.
