There are many compressor stations along long-distance natural gas pipelines. Natural gas can be transported using different boot programs and import pressures, combined with temperature control parameters. Moreover, different transport methods have correspondingly different energy consumptions. At present, the operating parameters of many pipelines are determined empirically by dispatchers, re...

In general terms a fabric filter system consists of a porous flexible layer of textile material through which a dusty gas is passed to separate particles from the gas stream. Deposits on the textile are removed periodically by powerful moving and thereby cleaning of the cloth to maintain the pressure drop across the filter within practical operating limits. There are several methods to make the...

A mathematical model of the problem pulse propagation in a semi-infinite gas pipeline was developed by expressing pressure drop quadratic law resistance and local component inertia force conservation momentum, using mass one-dimensional statement. The repeats Riemann but takes into account frictional force. Using an auxiliary function form natural logarithm reduced density, gauge functions, cer...

In this paper we present a new method for the production of bubble-liquid suspensions ~from now on BLS! composed of micron-sized bubbles and with gas to liquid volume ratios larger than unity. We show that the BLS gas fraction l5Qg /Ql , being Qg and Ql the flow rates of gas and liquid, respectively, is controlled by a dimensionless parameter which accounts for the ratio of the gas pressure ins...

Method of measurement of pressure drop in ports of hermetic compressor under discharge pressure is presented. ?,22 gas at 298 psig and 215QF condition pumped by hermetic compressor is directed into flow bench type pressure chamber where variety of orifices is installed and pressure drop is measured directly. Compressor and flow bench are installed in series on standard calorimeter which measure...

To provide supplementary oil recovery after the primary and secondary processes, enhanced oil recovery (EOR) techniques are introduced. Carbonated water injection (CWI) as an EOR method can improve sweep efficiency and the risk of gas leakage. On the other hand, the interfacial tension (IFT) is one of the key factors which can affect fluid displacement during the process of CWI greatly. Therefo...

This paper discusses the use of laboratory drag measurements and filter operating data to analyze factors affecting dustcake flow resistance in a hot-gas filter at the Power Systems Development Facility (PSDF). The hot-gas filter is a Siemens-Westinghouse two-tier candle filter system that is collecting coal gasification ash from a KBR Transport Gasifier. Operating experience with this system h...

arguably, the natural gas transmission pipeline infrastructure in iran represents one of the largest andmost complex mechanical systems in the world. the optimization of large gas trunk lines known asigat results in reduced fuel consumption or higher capability and improves pipeline operation. in thecurrent study, a single-objective optimization was conducted for khormoj compressor station on t...