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Path: Home » Indice Pubblicazioni » Convegni ATI - Accesso riservato soci CTI » CA - 61 - Perugia 2006 » Development of a low capacity adsorpt...

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Development of a low capacity adsorption chiller

Pubblicazione


Autore: J. Geyer, K. Parr

Collana: CA - 61 - Perugia 2006

Note:
Rising comfort requirements will bring a further increase in applications of cooling devices for room cooling also in central Europe. Using the currently usual techniques (compression process) will result in a significant rise of the electric power requirement in summer. The use of solar power or waste heat for cooling purposes can bring an important contribution to the defusing of this problem in future. Currently such systems (Ad- and absorption systems) are only available in the higher capacity range. Within the framework of a research project an adsorption chiller with a capacity of approx. 10kW will be developed. The unit should be supplied by heat from solar- or district heating systems. For first basic principle investigations a laboratory unit (approx. 1 kW cooling capacity) with silica gel/water as working material pair was built
up. With this unit basic works were made to investigate the behaviours of different sorts of silica gel as well as investigations for possibilities to simplify various components and to identify useful control strategies. Based on these experiences a
prototype model (nominal cooling capacity: 7kW) was constructed. With the prototype model further test series are carried out. Important targets are to reach a high efficiency through optimization measures at various components and the control system. On the other hand measures are to verify to simplify the construction with regard to a low-cost manufacturing, as well as to reach long periods with maintenance-free operation.


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