The IRONMAX is the first ironer on the market that is equipped with a parallel oil flow system. Read here 3 reasons why the parallel flow system makes the IRONMAX the most powerful gas heated ironer in the industry.
Let’s start with how a parallel flow system differs from a serial flow system. With a serial oil flow circuit, the hot thermal oil enters the ironer at the entry and runs through the ironer in the same direction of the linen: from the entry of the ironer to the exit. Consequence is that the oil, which is hot when the linen enters the ironer, gradually cools down.
With the parallel flow system, the chests and bridges are divided in circuits that are all individually fed by thermal oil and, more importantly, the thermal oil flows perpendicular to the direction in which the linen flows.
Because of this, the parallel oil flow system provides more evaporation capacity and actually solves some issues that were met by serial flow systems.
- A parallel flow system assures the most constant ironing temperature.
Correct ironing requires a constant ironing temperature, to ensure good heat transfer to the linen. The heat transfer is directly related to the flow of thermal fluid in the ironer chest, and to the temperature difference between the chest and the linen.
To put it in a formula : P = Q x Δt, where P is the power (heat transfer to the linen), Q is the oil flow in the chest and Δt the temperature difference between chest and linen.
And this is where the parallel flow system kicks in : one of the mayor flaws of serial flow systems is that only a part of the thermal oil flow in the chests is used, the part that flows where the linen makes contact with the chest. The oil in sections of the chest that is not in contact with the linen is in fact not used.
On a parallel flow systems the oil flows perpendicular to the linen which means that all the oil in the ironer comes in ‘contact’ with the wet linen. So there is a larger body of thermal oil available to dissipate the heat. In other words, your Q in the formula above is higher, so for a given temperature difference the heat transfer to the linen is higher.
- The parallel flow system assures more uniform ironing temperatures.
With a parallel flow system, the thermal oil flows in separate circuits that are independently fed by the same source, which offers 3 advantages over a serial flow system:
– The chests and bridges consist of several circuits, which are all fed independently and all have the same temperature.
– The thermal fluid covers less distance, allowing it to better retain its heat, compared to a serial flow system where the thermal oil does not go into circuits.
– Last but not least, by using circuits, we control how the oil flows through the chests and bridges. This evenly spreads the thermal oil, and thus the ironing temperature, over the complete ironing surface.
These 3 effects are paramount for a uniform ironing temperature over the complete ironing surface.
- The parallel flow system evaporates more water.
When linen enters the chest, it contains a large amount of water, but much of this water ‘lays on the surface of the linen’, as a matter of speech. At the entry you’ll need power, but the water evaporates relatively easy. As the linen goes through the ironer, the situation changes: You’ll have a less amount of water to evaporate, but instead of it ‘laying on the surface of the linen’, the remaining water is locked in the capillarity of the fibers and the only way to remove this is with heat. A rule of thumb is that, in order to remove this water, the ironing temperature where the linen leaves the ironer must be at least as high as the ironing temperature where the linen enters the ironer.
And that’s exactly where a parallel flow system differs from a serial flow system: with a serial flow system, the oil cools down as it goes from entry to exit, whereas the parallel flow system assures the same temperature from beginning to end.