Comfort
Good ventilation is the key to fresh air, optimum temperature and a comfortable indoor climate without drafts
Comfort that makes the difference
KE Fibertec defines comfort where people in sedentary environments do not experience drafts. This is achieved by the fact that the air velocity in the residence zone does not exceed 0.15 m/s.
The air distribution principle of low-impulse systems is based on passive thermal displacement, in which the air is supplied at a lower temperature than the air in the room. Due to the difference in density, where the cooled air is heavier than the warmer air in the room, the room air is displaced under the duct, while the blown air continues to move towards the floor. Air flow in space is then based on natural air movements, where the air is driven by the difference in density and convection currents from heat-giving activities and processes, hence the term “passive thermal displacement”.
Another option to achieve comfort is hybrid systems, which are low impulse channels, with laser-cut holes. As a result, the low-impulse principle is combined with the high-impulse principle, whereby part of the volume of air in the system is distributed away from the nearest zone under the ducts. This offers obvious advantages in particular if cooling is required where Delta T is higher than 5-6 °C, as it helps to avoid an immediate “cold drop” under the ducts. The cooling load is instead distributed over a larger area of the room.
In comfort situations, spaces are often low, so a typical solution is the KE Interior system, which is a semi-round pouch directly mounted on the ceiling in a rail system. Low-impulse comfort solutions are typically used in the applications listed below with a number of advantages.
Controlled air for laboratories
KE Interior can efficiently handle large volumes of air without drafts, making the system ideal for laboratories with stink cabinets and high air exchange.
The solution with KE Interior works quietly, creating a comfortable working environment without disturbing sound. It ensures high comfort, concentration and well-being for everyone staying in the room, while ensuring the efficient operation of ventilation.
For laboratories with clean room requirements, KE Interior can be supplied in Multiweave material, which does not emit fibers and is therefore approved for use down to Cleanroom Class 4.
Comfort and sound environment in cinemas, theatres and recording studios
Ventilation air is supplied at low speeds in the living zone, so guests and employees experience a comfortable, quiet air flow.
Ventilation air is supplied at low speeds in the living area, so guests and employees experience a comfortable and quiet airflow without disturbing what is happening in the room.
Low CO2 levels with even distribution of fresh air and temperature remain stable - without compromising on acoustics or room experience.
Drag free air in schools and offices
Fresh air is essential for efficiency in both the classroom and the office. Students/employees' performance ability decreases with increasing CO2 levels. When CO2 levels rise from 1000 ppm to 1225 ppm, performance drops 5% and at 1600 ppm a decrease of 10%.
The same applies to the temperature in the room. Performance ability of students and employee's decreases with increasing temperatures. When temperature rises from 22°C to 23.5°C performance decreases by 5% and 10% when temperature rises to 25.5°C.
The KE Interior system is easy to install and can be placed in the room so that the optimum air distribution is achieved.
Get expert advice for your next ventilation project
If you’d also like to find out more about textile based ventilation and the benefits it could bring to your next project, please feel free to send us an enquiry – with no obligation.
We’re here to offer advice and guidance on how to ensure an optimal and healthy indoor climate for your construction project. We will contact you to discuss your needs and requirements in more detail, so that we can find the best solution for your project.
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FAQs
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Find answers to most of what you need to know here or contact us directly for further help and guidance.
By adding the air directly in the sub-temperature living zone, efficient heating and cooling is achieved without oversized ventilation volumes. It can reduce the energy consumption of the cooling and heating system by up to 30% and at the same time minimize the need for expensive steel equipment.
A textile based ventilation system is lighter both in the weight of the material and when assembled. This means significantly shorter assembly time - up to 9 times faster in fact. Including the assembly time, it provides significantly lower operating and construction costs than traditional steel solutions.
The nozzles limit the induction of room air, so the air loses speed slower. The result is longer throwing length and deeper thermal penetration, ensuring that both hot and cold air are accurately distributed throughout the room.
The hybrid solution combines dense but air-permeable fabrics with KE DireJet nozzles. It prevents condensation and dust on the ducts and ensures that both hot and cold air can be distributed efficiently and comfortably in the room.
Industrial refrigeration is a general term for refrigeration in industrial enterprises where maximum air speeds in the room are needed.