If the gas pressure is reduced, it is a clear sign that leakage is occurring.
He added that "at a gas governor site in Wales which regulates gas pressure, a theft of a few pounds of copper could have led to an explosion".
Peak Oil means that, on balance, fields around the world that are young and still under high gas pressure, thus expanding their oil output, are equaled by older declining fields with lower pressure, which are forced to let their output slip each year.
That puts the gas under sufficient pressure to spin a turbine and thus generate electricity.
If autos are someday powered by hydrogen, Ovshinsky thinks the hydrogen should be stored not as a gas under high pressure, but as a solid hydride.
Something about combustible high-pressure gas and all.
FORBES: Update: The Honda Civic GX is Fine As Long As You Don't Refuel (Oh, and Tunnels Are Okay)
Fracking is a technique of shale gas extraction that involves pumping water and chemicals into shale rock at high pressure to extract gas.
The Stirling cycle describes a phenomenon where a confined volume of gas expands at high pressure and contracts at low pressure.
In September 2008, a high-pressure natural gas pipeline operated by BP ruptured, sending two segments of pipe flying 900 feet across the tundra.
As a material highly sensitive to the environment, graphene could act as a sensor with a single device measuring strain, gas, magnetism or pressure.
We think the Senate can vote in the majority for energy proposals that will reduce our dependence on foreign oil and reduce the pressure on gas prices.
CNN: 'Two oil men' to blame for high gas prices, Pelosi says
Such a development is likely to exert upward pressure on gas prices if for no other reason than the fact that the currently landlocked and illiquid markets may soon become global.
FORBES: If America is the New Saudi Arabia, What Does That Mean for Our Energy Future?
For example, a car could gently increase the gas-pedal spring pressure when the speed is too high -- the navigation system knows how tight that upcoming curve is, remember -- or apply a light twist to the steering wheel if the car is drifting off course.
CNN: Behold the?all-seeing, self-parking, safety-enforcing, networked car
So, as North Sea gas dwindles, there is great pressure on the UK to produce its own supplies from shale gas, which increases the significance of Mr Davey's shale gas announcement.
BBC: Gas-fired power stations to be encouraged by government
An international campaign group, the Shwe Gas Movement, has been putting pressure on Myanmar and its investors to compensate those displaced by pipeline, gas terminal and port.
FORBES: Myanmar's Ethnic Conflict Flares In Shadow Of Asian Oil Investments
Fracking is a technique involving pumping water and chemicals into shale rock at high pressure to extract gas.
BBC: Lancashire's shale gas estimated at ?136bn by Cuadrilla
Fracking is a technique where water and chemicals are pumped into shale rock at high pressure to extract gas.
BBC: Lancashire election candidates asked to oppose fracking
There is very little pressure on British gas to be efficient and to keep these price rises to a minimum.
Fracking is a controversial process that involves pumping water and chemicals into shale rock at high pressure to extract gas.
This will help take some pressure off of gas prices, but our citizens must understand this storm has disrupted the capacity to make gasoline and distribute gasoline.
Hydraulic fracturing pumps many thousands of gallons of mainly water and sand, with a few chemicals, at high pressure into tight gas-bearing shale deposits (hardened muds), creating cracks that allow gas to flow back up the well to the surface ( Shale Shock).
The purpose of the well is to determine the structural status of the cavern as well as the pressure of any gas that might be inside of it, he said, adding that the last mechanical integrity test performed on the cavern was done in late 2010.
The Department of Energy is releasing supplies from the nation's Strategic Petroleum Reserve to limit disruptions of supplies to oil refineries, which "will help take some pressure off of gas prices, " and the Environmental Protection Agency has waived rules requiring low-pollution blends in some areas in order to increase availability of gas and diesel, he said.
Either way, the CO2 must be put somewhere, for which strategies include pumping it into rocky formations (such as depleted oil and gas wells) at a pressure of 100 atmospheres, or even piping it in liquid form under pressure onto the sea-floor where it is cold enough and the pressure high enough that it is hoped the material will stay there, assisted by the formation of CO2-hydrate.
More generally, Iranian calls to form a gas cartel are useful for Russia as they serve to put pressure on European states that, in the wake of gas and oil supply disruptions over the past 13 months, are having second thoughts about deepening their dependence on Gazprom.
ECONOMIST: Don't worry, there won't be an effective gas cartel
In fracking, a mixture of water, sand and some chemicals is pumped into a well under high pressure to force the gas from the rock.
This is where the "wind" of electrically charged particles coming off the Sun is slowed by pressure from the sparse gas found between the stars.
The difference between turbocharging and supercharging is simple: a turbocharger boosts engine air pressure by using exhaust gas to power a turbine that pushes more air into the combustion chamber.
FORBES: 2012 Audi A7 Test Drive and Review - High-Tech Meets High Style
应用推荐