Current research projects

Image Cryogenic liquid piston pumps for cold liquefied gases like LIN, LOX, LHe, LH2, LNG, LAr
Image State of system and failure analyses
Image Reduction of primary noise sources of fans
Image High temperature heat pump
Image Investigation of materials
Image Low noise and non metallic liquid-helium cryostat
Image Micro fluidic expansion valve
Image Solar Cooling
Image Electrochemical decontamination of electrically conducting surfaces „EDeKo II“
Image Innovative Manufacturing Technologies for Cryosorption Systems
Image Software for technical building equipment
Image Electrical components in refrigeration circuits
Image Preformance measurements of heat exchangers
Image Brine (water)-water heat pump
Image Hybrid- Fluid for CO2-Sublimation Cycle
Image IO-Scan - Integral measuring optical scanning method

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Software modules

Industry

Dipl.-Ing. Markus Müller

+49-351-4081-5218

Software for properties of refrigerants

ASEREP and REFLIB

Basic research on refrigerant properties has been carried out at the Institut fuer Luft- und Kaeltetechnik gGmbH (ILK) for many years. Results of this work are for example the refrigerant R723 and efficient software for the calculation thermodynamic and transport properties. The software modules ‘ASEREP’1) and ‘REFLIB’1) were developed especially for Windows applications.

They provide functions of thermodynamic and transport properties for important refrigerants and can be integrated into user software. The difference between them is that ASEREP supports only one substance data library - the library developed by the ILK „ASEREP “-, REFLIB however various 2). ‘ASEREPfxl’ and ‘REFLIBfxl’ (= 'ASEREP/ REFLIB for EXCEL') are special software packages, which provide access to the above mentioned substance data modules via Microsoft Excel® by means of so-called ‘Add-Ins’.

ASEREPfxl and REFLIBfxl2) are intended for the daily work. Some examples, like work sheets for thermodynamic cycles and saturation tables, belonging to the scope of delivery, show how the software can be used effectively, and they are useful tools.

  1. © Institut für Luft- und Kältetechnik gemeinnützige GmbH
  2. The libraries ASEREP1) as well as CO2_LIB1) for carbon dioxide belong to the standard scope of delivery of REFLIB and/or REFLIBfxl; others on request.

Cooling Agent

The ILK Dresden has many years of experience in the investigation of cooling brines for secondary circuits. For the calculation of secondary circuits with cooling brine, we offer you a Windows library for the calculation of thermophysical material properties. This library can be linked directly into programs or used via an add-in in Microsoft Excel. The library provides functions of thermodynamic and transport properties for cooling brines in the liquid phase. Material properties are available for different technical brines like Tyfocor or Antifrogen and water in the liquid phase.


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Further Projects - Software Development

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Computational fluid dynamics CFD

Scientific analysis of flows

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Multifunctional electronic modules for cryogenic applications

Electronic with less wiring effort - more than 100 sensors via one feedthrough

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Combined building and system simulation

Scientific analysis of thermodynamic processes in buildings and its systems

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Reducing the filling quantity

How much refrigerant must be filled?

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Optimizing HVAC operation with machine learning

Intelligent control of HVAC systems – high comfort with low energy demand