Originally Posted by
4bee
TINY! You ain't kidding Rick, it looks like they were meant for a Display case.
I know diddly **** about C02 systems, WAY before my time. But the following makes a couple of relevant comments:
7) CO
2 has a greater volumetric cooling capacity as compared to commonly used HFCs. For example, in a -20F application, R-404A has a latent heat of vaporization of 81 Btu/lb-min. As a comparison, in the same application CO
2 has a latent heat of vaporization of 130 Btu/lb-min. The resulting mass flow requirement for CO
2 will be approximately 38 per cent less, with the benefit of smaller compressor displacement and smaller pipe sizes.
CO2 supermarket refrigeration systems become more common
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