Valves

Coning, Piet de; Swinley, John

doi:10.1016/b978-0-12-818888-0.00005-x

Cited by 2 publications

(4 citation statements)

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“…where τ 1 -time of excess pressure drop in the purge chamber from 0.4 to 0.2 MPa; V -volume of the capacity of the test vessel in accordance with GOST26-12-384-72 (0.064 m 3 ); V 1 -actual volume of the purge chamber capacity, m 3 ; T -temperature of compressed air, K (T=293.15 K); Т 1 -actual temperature of the compressed gas, K.…”

Section: Engineeringmentioning

confidence: 99%

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Methodology of Experimental Investigations of Valve Operation

Seyidahmadov¹

2019

EUREKA: Physics and Engineering

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Tightness, as well as the reliability of the valve plate, is a complex property of the effective operation of compressor cylinders of the first stage and, in general, gas-engine reciprocating compressors. The issue of valve plate tightness is a subject of independent study, since technical and economic efficiency depends on their work. In this connection, only some data obtained under operating conditions are presented in this work. As a research result, it is found that, taking into account the identified requirements for the gas lift system, in order to effectively increase the operating hours of valves with increased tightness of the plate, it is necessary to check and purge the valves. Therefore, each valve in the gas lift compressor station, without subjecting them to cleaning, is first recommended to check for leaks. To confirm the feasibility of checking valve tightness, special equipment is offered for each gas-lift compressor station, a purge chamber, on which the tightness of valve plates is checked. The usefulness and importance of the purge chamber is in preparation of the valve at the gas lift compressor station, which contributes to increased efficiency, safe operation, normal tightness and reliability of its operation.

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Section: Engineeringmentioning

confidence: 99%

“…Therefore, the efficiency and safety of operation of the valves of the compressor unit. Therefore, the experimental study of valve tightness and increasing their operational efficiency, as well as the analysis of technological parameters before and after the experimental study, is very important [3,4].…”

Section: Introductionmentioning

confidence: 99%

Methodology of Experimental Investigations of Valve Operation

Seyidahmadov¹

2019

EUREKA: Physics and Engineering

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“…It requires no solvent extraction or enrichment methods, making it a simple and clean preparation method. It allows for the highly sensitive and specific detection and quantification of volatile compounds in complex samples …”

Section: Introductionmentioning

confidence: 96%

“…It allows for the highly sensitive and specific detection and quantification of volatile compounds in complex samples. 44 …”

Section: Introductionmentioning

confidence: 99%

Multimethod Approach to Investigate the Factors Influencing High-Temperature Fuming of Bitumen

Deller,

Grist,

Giustozzi

et al. 2024

ACS Omega

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Bitumen is heated at high temperatures during asphalt paving applications. In these circumstances, there is the possibility for fuming. These fumes can vary in intensity and, if significant, may attract complaints. The bitumen's chemical composition depends on the crude oil from which it originates. A tool to screen bitumen and evaluate its potential to release fumes would be highly beneficial. In this study, three methods have been employed to investigate a series of bitumen samples that were known to produce complaints by (a) quantifying benzene, toluene, ethylbenzene, and m, o, p-xylene (BTEX), (b) measuring the partition coefficients of these analytes, and (c) measuring the volatile mass of bitumen exposed to isothermal heating. It was found that the concentration of BTEX varied significantly between bitumen samples. The partition coefficients of these analytes are substantially the same between samples. Finally, the volatile mass of each sample varies significantly between samples, independent of bitumen grade or country of origin. These volatile masses correlate strongly with fuming complaints from bitumen and can be used as predictors of bitumen fuming risk.

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Valves

Cited by 2 publications

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Methodology of Experimental Investigations of Valve Operation

Methodology of Experimental Investigations of Valve Operation

Multimethod Approach to Investigate the Factors Influencing High-Temperature Fuming of Bitumen

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