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Advanced Placement (AP) Human Geography (also known as AP Human Geo, AP Geography, APHG, AP HuGe, APHug, AP Human, HuGS, AP HuGo, or HGAP) is an Advanced Placement social studies course in human geography for high school, usually freshmen students in the US, culminating in an exam administered by the College Board. [1]
2010: Dalian Pipeline disaster – The explosion of two petroleum pipelines and subsequent fire in the port of Dalian, in northern China's Liaoning province on Saturday, on July 17, 2010, caused fatalities, damages and an ecological disaster, releasing 11,000 barrels of oil into the Yellow Sea, and covering up, according to different sources, from 50 to 430 km 2 of sea and coast lines.
A 5 foot long section of pipe was ejected 72 feet away. There were no injuries. [26] Residents in Lawrenceville, Georgia reported to a local gas company a gas smell. This led to finding diesel fuel running into a storm drain from a leaking Products Pipe Line 26 inch line. It was unknown how long the pipeline had been leaking.
Pipe bursting is a trenchless method of replacing buried pipelines (such as sewer, water, or natural gas pipes) without the need for a traditional construction trench. "Launching and receiving pits" replace the trench needed by conventional pipe-laying.
For NS2, the pipes have an outer diameter of approximately 1,200 millimetres (48 inches) and a steel wall thickness of 27–41 millimetres (1.1–1.6 in) – thickest at the pipe ingress where operating pressure is 22 megapascals (220 bar) and thinnest at the pipe egress where operating pressure is 17.7 megapascals (177 bar), when transporting gas.
Natural gas (and similar gaseous fuels) are pressurized into liquids known as natural gas liquids (NGLs). [5] Natural gas pipelines are constructed of carbon steel. Hydrogen pipeline transport is the transportation of hydrogen through a pipe. Pipelines are one of the safest ways of transporting materials as compared to road or rail, and hence ...
Rubenstein obtained his B.A. in public affairs from the University of Chicago in 1970, and went to London where he obtained his MSc in city and regional planning from the London School of Economics in 1971. Back in the States he obtained his PhD in geography and human engineering from the Johns Hopkins University in 1975. [3]
The flow of a gas or hydrocarbon liquid down a pipe line causes erosion as a result of the contact between the pipe wall and the medium being transported. The main factors that increase erosion are the flow rate and the contamination levels present in the gas or hydrocarbon fluid.