IEA Solar Heating and Cooling Programm - NachhaltigWirtschaften.at

Endbericht Solare Kühlung und Klimatisierung – IEA SHC Task 38, Phase II 6
2 Summary
The overall goal of IEA SHC Task 38 „Solar Air Conditioning and Refrigeration“ is the
development and testing of compact solar heating and cooling systems with low nominal
capacity, custom-built high capacity systems for non-residential applications and the
development of new thermally-driven cooling machine concepts and components for
solar applications.
Beyond the technological focal point, the goal of the collaborative research project is an
efficient know-how transfer to the users of this technology and to the relevant industry in
order to promote market implementation.
IEA SHC Task 38 is based on the results of two previous IEA-SHC tasks, Task 26 Solar
Combisystems and Task 25 Solar assisted air conditioning of buildings. Based on the
results of these two tasks, concepts and systems for solar heating and cooling will be
developed and tested:
• Compact systems for solar heating and cooling in a capacity range of 2 – 20 kW.
• Custom-built high capacity systems for non-residential applications
• New concepts of thermally-driven cooling machines and components
IEA SHC Task 38 is divided into 4 subtasks:
Subtask A: Small and medium pre-engineered systems
Subtask B: Large sized custom-made systems
Subtask C: Modeling and fundamental analysis
Subtask D: Market transfer activities
The main activities within Task 38 of the partners participating in this project are in
Subtask A, which is led by AEE INTEC.
In this subtask, system concepts for small and medium compact systems have been
developed, compared and tested in pilot applications. The goal was to come to system
packages that contain a solar combisystem for domestic hot water and space heating and
use the surplus solar energy in summer for cooling applications. Such systems should be
offered as pre-engineered packages so that they can be designed and built by installers
without the need of customized design studies.
Practical operation experiences from demonstration systems are an important input for
the development of pre-engineered solar heating and cooling systems. Exchange of
experiences was achieved on a personal level by means of presentations and discussion
at the expert meetings. In addition a common procedure for monitoring of demonstration
plants as well as for the analysis of these data was defined. This makes monitoring data
of different plants comparable.
An Excel-Tool was developed where data of a whole operating year can be entered.
Automatically the tool will then calculate a large number of key figures to compare.
This Excel-Tool was used to analyze monitoring data of 11 small and medium scale plants
(Subtask A) and 11 large custom-made plants (Subtask B) and to compare them with
eachother. Three of the small and medium scale plants and three of the large plants were
in Austria.
AEE - Institut für Nachhaltige Technologien