Design of a Solar Driven Cooling Unit Based on the Diffusion Absorption Principle

Topics:
Mechanical and Industrial
Tags:
Generator,
University Of Stuttgart
Source:
University of Stuttgart

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Overview: The paper reveals about a Diffusion-Absorption Cooling Machine with 2.5kW cooling power driven by solar thermal collectors that was developed, constructed and tested. The diffusion absorption process based on ammonia-water solutions and an inert gas for pressure equilibration has been known for about a century, but the only machines constructed so far use high temperature generators directly powered by gas or electricity. To use solar thermal energy with commercial vacuum tube collectors a new generator had to be designed which can operate at temperature levels around 120°C and the expensive mechanical solution pump had to be replaced by a thermally driven gas bubble pump.

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Format: PDF | Size: 679KB | Date: Jul 2001 | Pages: 16

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