Current research projects

Range of services laboratory analyses

Pulse-Tube-Refrigerator with sealed compressor

All-in-one device for freeze-drying and production of biomaterial

In-situ investigation concerning the swelling behaviour of polymer materials under elevated pressures and temperatures

Optimizing HVAC operation with machine learning

Low Temperature Tribology

Tribological investigations of oil-refrigerant-material-systems

Test rigs for refrigeration and heat pump technology

Lifetime prediction of hermetic compressor systems

Humidifier System for High-Purity Gases

Influenced melting point of water by magnetic field

Software modules

Calibration of Low Temperature Sensors

Refrigerants, lubricants and mixtures

Panel with indirect evaporative cooling via membrane

Hydrogen and methane testing field at the ILK

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Industry 4.0 membrane heat and mass exchanger (i-MWÜ4.0)

EuroNorm INNO-KOM

04/2019 - 09/2021

Dipl.-Ing. (FH) Hannes Rosenbaum

+49-351-4081-5324

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completed

Linking the entire life cycle of a multi-functional air handling unit

Membrane heat and mass exchanger ...

... enable heat and mass transfer without direct contact of the media involved. A large number of the resulting application potentials and fields of application have already been successfully tested on a laboratory scale at the ILK Dresden. These include

Air humidification
condensate-free sorptive air dehumidification
Heat and moisture recovery in a closed system
Indirect evaporative cooling in air conditioning and process air technology.

Objective

To meet Industry 4.0 and quality assurance standards, design, assembly and test procedures were developed that can be networked with planning, design and production. In addition, procedures were developed for energy and hygienic condition diagnosis during operation, and a parameter-guided maintenance management system for quality assurance was derived from this.

[Translate to EN:] Interaktion eines i-MWÜ4.0 — Interaction of an i-MWÜ4.0

The call for the use of energy-efficient and sustainable technologies and processes in air conditioning is particularly relevant to humidification and dehumidification. Example: liquid sorption processes. Innovative membrane heat and mass transfer units can help here. They are designed on the basis of measured values and then tested, maintained and optimised over their entire life cycle.

Dipl.-Ing. (FH) Hannes Rosenbaum

Approach

The development of the Industry 4.0 Membrane Heat and Mass Exchangers was based on four main areas (tools):

For the TESTING TOOL, approaches were developed to adapt common test methods for leakage, tightness, permeability and processing quality with regard to non-destructive testing on semi-finished products (iMWÜ production) and in plant operation.
The DIAGNOSETOOL and the CONTROLLING AND NETWORKING TOOL of the iMWÜ4.0 were developed on the basis of the acquisition, storage and evaluation of long-term measurement data from a functional sample. The focus was on hygienic (risk of mould) and energy aspects. Numerical calculations using balance equations for mass, momentum, energy and species support self-diagnosis and machine learning, as do material properties from laboratory tests. Computational algorithms have been specifically programmed for implementation in an online monitoring system - for comparison and analysis of real and comparative processes.
The solution approach for the MANUFACTURING TOOL (automatable production of the i-MWÜ4.0) was the conceptual constructive revision with regard to automatable production/manufacturing and assembly. Preference was given to materials, components, semi-finished products, joints and joining techniques that are suitable for series production and that enable the arrangement of components and the assembly process to be coordinated.

Outcomes

The results of the successfully completed R&D project include:

A test method including a test device for non-destructive testing of flowable, multi-layer textile composites (patent pending): Tightness/leakage and processing quality testing on unassembled semi-finished products
Monitoring of iMWÜ4.0 status data (LabView)
implemented algorithm for hygienic self-diagnosis regarding the risk of mould growth
Implementable Python code of the ideal comparison process in iMWÜ4.0 as well as the calculation of real material properties from measurement data for online analysis in the form of a target/actual comparison
New design approaches for 2- and 3-fluid membrane heat and mass exchangers

Non-destructive semi-finished product testing (tightness, leakage, processing quality), flowable textile composite (roll material)

Interested?

Beyond the research project, we are planning to form a competent consortium that will cover the entire process chain, from the design, manufacture and processing of textile heat and mass transfer surfaces to plant construction, process control and energy management at the end product at the end user. Co-operation with institutes and companies from different industries is possible and desired at any time: