An experimental study of heat driven absorption cooling systems

Delgado, RA

Abstract

The great need for cooling combined with Mexico's large availability of low
enthalpy geothermal energy, makes it very attractive to utilize this resource for
cooling using heat driven absorption systems. Mexico posseses large amounts of
brine at temperatures which are too low to enable electricity to be generated
efficiently and economically. Of the possible non electric uses of low and medium
enthalpy geothermal energy are, to provide cold storage facilities for perishable
foods and produce ice using the heat driven absorption cooling systems.
The main purpose of the work described in the thesis is to obtain experimental data
on heat driven absorption cooling systems using geothermal energy for the design
of large scale systems.
An experimental study on the performance of the ammonia-water absorption
cooler operating on low enthalpy geothermal energy at the Cerro Prieto
Geothermal Field was made. The system was used to cool a small storage unit at
below freezing temperatures, during 8 hour tests and 24 hour tests.
An experimental study on the performance of the ammonia-water absorption cooler
operating on low enthalpy geothermal energy at the Cerro Prieto Geothermal
Field, has been made in order to operate it as an ice-making machine. Some
prototypes of ice generators were designed, installed and operated. An experimental study of a fluidized bed heat exchanger prototype connected to
the ammonia-water absorption cooler was made in order to use the geothermal
brine at the Cerro Prieto Geothermal Field.
Computer models based on LOTUS 123 worksheet were developed. These models
were developed to calculate quickly and accurately the thermodynamic data from
the water-ammonia absorption systems.

Citation

Delgado, R. An experimental study of heat driven absorption cooling systems. (Dissertation). University of Salford

• Thesis Type: Dissertation
• Deposit Date: Sep 23, 2011
• Publicly Available Date: Sep 23, 2011
• Award Date: Jan 1, 1992