Compressor suction and discharge lines in refrigeration systems must be designed to move compressor lubricants along the pipeline. This paper presents experimental and analytical results that describe the characteristics of two-phase, viscous liquid flows. Smooth-walled, flat plate test sections have been designed to allow flow visualization studies of the oil flow in different flow orientation...

The distribution system is the primary cause of taste and odor complaints in drinking water. This research examined the ability of small diameter pipes used in home plumbing to affect drinking water quality. The properties of the materials were investigated in the absence of disinfectant and the presence of either chlorine or chloramines. A panel was trained in flavor profile analysis (FPA) acc...

Oil and gas transmission pipelines are critical items of infrastructure in providing energy sources to regions and countries. Steel pipes are commonly used which can be subject to both internal and external corrosion. This paper presents an advanced nondestructive inspection technique for detection of oil-gas pipeline corrosion defect. The Pulsed Eddy Current (PEC) method has been successfully ...

pycnocycla spinosa aerial parts were collected weekly during four-month growth. hydrodistillation and gas chromatography coupled with mass spectroscopy techniques were used for essential oil and sesquiterpenes investigation. thirty-four components were identified, of which the characteristic sesquiterpenes were a -copaene, caryophyllene, a -humulene, b-ionene, d-cadinene, a -calacorene, caryoph...

THIS paper presents a new approach for detection of oil-gas pipeline corrosion defects in which pipeline magnetic flux leakage (MFL) detection system is adopted. To test the new approach, some artificial defects are simulated mathematically on the surface of oil-gas pipes to simulate different defects happening in practice. The interference eliminating method is introduced for compensation of d...

Dust control tests of experimental enclosed layer and floor feeding broiler houses were performed with ultra sonic sprayer units which have some advantages such as 1) low cost, 2) low electric power consumption, 3) forcing the charge and 4) unnecessary to lay pipes to spray. With spraying 2 % solution of emulsified canola oil in layer house, the concentration of dust with aerodynamic diameter (...

background and purpose: determination of heavy metals in oils is necessary to establish quality standards on a country level. this study aimed to determine of heavy metal contents (cr, ni, as, cd, hg, pb, sb, sn, sr, al) in 12 seed oil samples in iran by inductively coupled plasma-optical emission spectrometry (icp-oes). materials and methods: the concentrations of heavy metal were determined b...