Sentences with phrase «leakage rate for»

Although the study's estimated leakage rate for production operations was in line with EPA's estimate, several processes leaked more than previously thought, while another (well completions) emitted much less due to the effectiveness of recent EPA rules.

Estimates of leakage rates for action under the Kyoto Protocol ranged from 5 to 20 % as a result of a loss in price competitiveness, but these leakage rates were viewed as being very uncertain.

Not exact matches

Shale: Water First, Leak Later: The Climate Benefits of Shale Gas Could Leak and Wash Awaydiscusses how methane leakage and water usage rates are eroding the climate argument for shale gas.

The ceramide - infused barriers were also rated higher for prevention of leakage and itching.

Methane lawsuit threat hangs over EPA's head Research by the Environmental Defense Fund has found that leakage rates must remain below 3.2 percent for natural gas power plants to carry a climate advantage over coal plants.

The reason for this failure is because of the leakage in the promotion practices that lowers the business conversion rate for the e-commerce shops.

«There's quite a bit of uncertainty and disagreement about what the actual leak rate is,» said Tom Moore, Western Regional Air Partnership Air Quality Program Manager for the Western States Air Resources Council in Fort Collins, Colo. «That makes it difficult to understand how much any particular regulation would reduce methane leakage.»

We find (i) measurements at all scales show that official inventories consistently underestimate actual CH4 [methane] emissions, with the natural gas and oil sectors as important contributors; (ii) many independent experiments suggest that a small number of «super-emitters» could be responsible for a large fraction of leakage; (iii) recent regional atmospheric studies with very high emissions rates are unlikely to be representative of typical natural gas system leakage rates; and (iv) assessments using 100 - year impact indicators show system - wide leakage is unlikely to be large enough to negate climate benefits of coal - to - natural gas substitution.

Unfortunately, I believe that the rest of the world on average will have higher methane leakage rates from the hydrofracking and transmission operations than for those in the USA; which I believe, will significantly increase methane concentrations in the atmosphere over the next several decades.

Methane leakage rates can and probably will be lowered substantially in the future.One study found that 70 percent of total leakage from 250 wells in Fort Worth, Texas, was occurring at only 10 percent of the wells, suggesting significant potential for low - cost, high - impact intervention.

We will need to wait until the 16 academic - lead studies are completed to compare them with the national top - down emissions rate reported by Miller et al. for fossil fuel related emissions, including end uses and natural leakage, neither of which is being measured in these studies.

I've heard a leakage rate of 0.1 % per year tossed around as acceptable for terrestrial carbon sequestration; pumping CO2 down into the ground.

As a proportion of the total oil and gas produced at these fields, this represents a leakage rate of about 10 % for both fields, in good agreement with previous estimates for several other leaky formations around the United States.

Building my own blower door allows me to take my time finding and sealing leaks and to get a good idea what the leakage rate is for my house.

Those effects «essentially canceled out the climate benefits of substituting natural gas for coal, regardless of the leakage rate,» according to the study.

What do these leakage rates mean for the viability of natural gas as a bridge fuel?

This is just the latest peer - reviewed study finding methane leakage rates well below the threshold for natural gas to maintain its climate benefits over other traditional fuel alternatives.

We consider possible exchange rates for allowances to adjust for differences in program stringency, and we examine how they interact with price floors and ceilings while explicitly representing other program features (e.g., leakage policies, companion policies, and allowance allocation).

Researchers noted during a webinar presentation of the study's preliminary findings in July 2017 that it was the first time long - term continuous sampling of methane from natural gas activities had occurred, and that most existing studies that use aircraft data only sample for a limited number of days, usually only one to two, and often show a higher leakage rate.

Multiple studies have indicated that natural gas is no better for the climate than coal when you consider the high rates of methane leakage in natural gas production and transport.

The homes in the study under discussion had air leakage rates that covered a wide range, as is typical for a group of new homes.

Rated properly, those policies account for more than $ 2 billion of annual premium leakage.

As a comparison, 3 m ³ / hr / m ² is the best air leakage rate being proposed for dwellings in current consultations for changes to the Building Regulations, and this value is only proposed for 20013 / 14 in England & Wales.