Accession Number:

AD0274188

Title:

THE EFFECT OF PARA-ORTHO SHIFT ON HEAT EXCHANGER DESIGN IN HYDROGEN NITROGEN HEAT EXCHANGE AT HIGH PRESSURES

Descriptive Note:

Corporate Author:

AERONAUTICAL SYSTEMS DIV WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1962-01-01

Pagination or Media Count:

41.0

Abstract:

The size of a H2-N2 heat exchanger condenser is exponentially a function of flow ratio of N2H2. This is in agreement with the literature. The function is such that at 800 psia H and 20 atm 194 psia or 33.5 atm N2 being cooled from 300 or 500 R, a straight line assumption is reasonable below the flow ratio of 5N2H2 the constants 2,4,5,6,7, and 8 represent 2 through 8 of N2 condensed per H2. Above this value the assumption is poor. The effect of hydrogen para-ortho shift on heat exchanger design is small at low ratios of N2 H2 up to 3N2H2. Above this value it becomes a minor factor and should be considered. Above 5N2H2 the para-ortho shift affects the size of an exchange 25 or more and is a major factor.

Subject Categories:

  • Air Conditioning, Heating, Lighting and Ventilating

Distribution Statement:

APPROVED FOR PUBLIC RELEASE