Method and apparatus for increasing acceptance and adjusting the

Details Method and apparatus for increasing acceptance and adjusting the Method and apparatus for increasing acceptance and adjusting the

1996-10-28

1998-07-14

Capossela, Ronald C.

Refrigeration

Storage of solidified or liquified gas

With conservation of cryogen by reduction of vapor to liquid...

62 531, F17C 502

Patent

active

057786798

ABSTRACT:
Methods and apparatus for (a) increasing expansion tank "acceptance" (defined herein as working fluid storage capacity); and (b) adjusting the rate of pressure variations within a prespecified range in precharged fluid storage systems (for example, holding pressure down below a prespecified threshold value for a given volume of acceptance, stored water temperature level, etc.). A "volatile" fluid (defined herein as a fluid having a boiling point within the predetermined pressure and temperature operating ranges for a given system), is used at least in part as the expansion fluid in an expansion tank included in a fluid storage system. The volatile fluid, whether pure or combined with an ideal gas to temper the expansion fluids sensitivity to temperature, can be used to realize a relatively constant pressure "vapor spring" to make internal expansion tank pressure relatively independent of acceptance (where the term "relatively" in each instance is referring to a comparison between the use of an expansion fluid that contains a volatile liquid and one that does not contain such fluid).

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