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Experimental study on gas hydrate cool storage with R134a and R141b.
Author(s) : WANG S. P., LU S. S., CAI Y., LI F. M.
Summary
Experimental study on refrigerant gas hydrate has been done by using R134a and R141b respectively, as cool storage medium in an indirect-contact-charge and discharge cycling system. During the experiment, several kinds of alcohol like glycol, propanol, n-butanol and pentanol are individually added as surfactant to inspect their influence on gas hydrate formation. Meanwhile heat and mass transfer characteristics during hydrate formation and dissociation process in cooling storage tank have been analyzed at various running conditions. The results show that both R134a and R141b are good medium which exhibit active reaction and good performance. Generally, the crystallization of hydrate formation occurs in a finite extent of supercooling, and the supercooling reduces as hydrate begins to grow. By adding suitable surfactant, the supercooling degree is significantly reduced. For R141b gas hydrate, addition of 1% glycol shows the best effect, while for R134a, the best surfactant is 1-1.2% n-butanol.
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Details
- Original title: Experimental study on gas hydrate cool storage with R134a and R141b.
- Record ID : 1998-3364
- Languages: English
- Source: Emerging trends in refrigeration and air-conditioning.
- Publication date: 1998/03/18
- Document available for consultation in the library of the IIR headquarters only.
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Indexing
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Themes:
HCFCs;
HFCs;
Thermal energy storage - Keywords: R134a; Alcohol; R141b; Water; Additive; Clathrate; Thermal energy storage
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