ESSMANN case study
"Aeration and ventilation for plastic injection moulding plants"
Download as PDF
Firma Ludwig Peithmann GmbH & Co. KG manufactures plastic injection moulded components that are built into kitchen appliances, for example. Melting the plastic granules during the production process generates considerable heat. The company’s continued growth necessitated the installation of ever more machinery, which caused massive problems with heat on the production line. The work environment became virtually intolerable during the summer months and equipment failures had a negative impact on the reliability of production processes.
Project definition
- A cost-effective aeration and ventilation solution that considerably lowers temperatures in the halls, is economical to maintain and is able to admit the required fresh air into the work environment without causing draughts.
- Incorporation of aerodynamically effective smoke extraction and melt-out heat extraction faces.
- Improvement in incident daylight.
ESSMANN solutionAfter extensive ventilation measurements were taken and analyses performed, the following solution was developed together with the client: Three arched ESSMANN arcade rooflights provide daylight and a melt-out heat extraction face, ensuring the necessary smoke extraction can be performed, whilst at the same time acting as supports for the ESSMANN all-weather double flaps. These discharge the excess thermal load irrespective of the weather conditions and significantly improve the climate in the hall. Air must be fed in from the outside as this concept is based on natural ventilation of the hall. The project planners opted to use mechanical, decentralised ESSMANN air treatment units with fabric ventilation channels. These ensure the systematic admission of fresh air without causing any draughts. The ESSMANN air intake channels for the internal fresh air equipment required were also integrated into the arcade rooflights. Furthermore, this equipment contains pumped warm water damper registers, which ensure that the heat supply is guaranteed throughout winter.
Customer benefits
- Low energy costs: The ESSMANN arcade rooflights supply natural daylight to the work environment, thus reducing the energy costs associated with artificial lighting.
- Low risk of leakage: The ESSMANN arcade rooflights act as supports and minimise both the risk of roof penetration and any potential leakage.
- Reduced investment and operating costs: The ESSMANN all-weather double flaps provide rainproof ventilation using the natural thermals in the plant, whilst at the same time serving as SHE systems. No additional ventilation system is needed, which reduces investment costs. And no auxiliary power is needed to ventilate the plant, which reduces operating costs.
- Easy integration into complicated geometries: The building is ventilated and heated using decentralised Tornado air treatment systems. The modular design of the system ensures easy integration into complicated geometries, even in old buildings.
- Static limitations: The building had reached its static limits. However, the air treatment systems are made of zinc aluminium, so this lightweight design eliminated the need for any additional static measures to be put in place.
- Selective, localised ventilation: The fresh air and extracted air equipment is controlled from a central switch cabinet. The ability to ventilate either the entire building or only selected problem areas improves energy efficiency. Air intake channels for the internal fresh air equipment with integrated pumped warm water damper register
Result
Peithmann employees now have a bright hall that offers the best possible work stations from an ergonomic point of view. Furthermore, ESSMANN all-weather double flaps and the Tornado air treatment system provide the best possible aeration and ventilation solution, whatever the season or weather."
