منابع مشابه
Influence of Pipeline Operating Pressure on Value Setting of Automatic Control Valves at Different Pressure Drop Rates
When a natural gas pipeline ruptures, the adjacent upstream and downstream automatic control valves (ACV) should close quickly to prevent leakage or explosion. The differential pressure set point (DPS) at each valve location is the main criteria for value setting in ACV actions. If the DPS is not properly adjusted, the ACV may mistakenly close or it may not take any actions at a proper ti...
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A general framework is presented for accurately and efficiently estimating the phenomenological pressure-dependent rate coefficients for reaction networks of arbitrary size and complexity using only high-pressure-limit information. Two aspects of this framework are discussed in detail. First, two methods of estimating the density of states of the species in the network are presented, including ...
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C. S. WARD 1 has described previous devices used to indicate failure of oxygen supply. These include the '%osun" warning device, the Wantage oxygen failure alarm, 2 the Coote warning device, a the Adler and Burn device, 4 the "fail safe" oxygen device, 5 and the ECC gas failure alarm. 6 The reader is referred to Ward's paper for descriptions. It is evident from the above list that a warning sys...
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IN the recent past a number of blood pressure recorders for clinical use, and especially during anaesthesia, have been described (Molyneux and Pask, 1953; Simpson, 1956). It seemed, however, that these recorders had several disadvantages and that there was a place for an instrument that was cheap, simple and not a possible source of an explosion when used in the vicinity of explosive anaestheti...
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Increase in urban water networks, network management is one of most important problem in which the parameters of the network pressure and leakage at night in search of networks and connections will be worn. Given that the urban water networks with more than 30 years old have been worn and is part of the network and still have not replaced the night of exhaustion and pressure leakage is due to i...
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ژورنال
عنوان ژورنال: Journal of the Japan Society for Aeronautical and Space Sciences
سال: 1971
ISSN: 0021-4663
DOI: 10.2322/jjsass1969.19.251