Sentences with phrase «energy density of»

Range (energy density of current tech compares incredibly poorly to petrol), Reliability (refer to multiple recalls due to battery issues), Durability (10 years at best to replace the most expensive part of your car is not acceptable), Resale value (see durability above), Charging time / Convenience (you can get another 300 miles from a petrol engine in about 5 min, 8 + hrs from EVs).

The low - energy density of lignite means that it is consumed only at or near the mine mouth.

Kris De Decker, after analyzing the energy density of manufacturing our computers and (12 kilograms of fuel per kilo of computer) calculates that the embodied energy in the manufacture of just the RAM in a notebook computer would run the thing nonstop for a thousand days.

I'm very active in politics and can tell you that the forces driving the US towards further coal consumption (energy density of coal, domestic supply, labor employment, big - business / mining concerns etc.etc.)

The ultimate goal for the battery is to match the energy density of gasoline.

The oil used for transporting coal would be reduced by a factor of about 20,000 for every tonne of oil moved because the energy density of nuclear fuel is about 1/20, 000 of coal.

So could the next generation solid - state lithium battery, which «delivers 2.5 times the energy density of typical lithium - ion batteries, with the potential of costing one third of the 2020 projected price of those batteries,» Green Car Congress reported.

The photons will interact with the environment and some of them will become high energy and escape and at equilibrium the energy density of the incoming stream and the «trapped» photons will be the same.

Can energy density heating an object be less then the energy density of the object itself?

I say piffle, not merely because the earth rotates and its atmosphere has clouds, but largely because there are no real economies of scale due to the energy density of the sun (and ditto for wind) no better articulated than here - http://www.brookesnews.com/072210journalism.html You have been conned by the green pipedream of technological advances in solar and wind harnessing, when it is the upper physical density limit of solar insolation that is the overarching problem.

How are you transporting the energy to northern / southern countries where the energy density of the sun's rays isn't enough for power production?

there is a huge difference in the energy density of CNG and LNG, about 2.4 times.

Smil helps readers understand the relationships among the energy density of fuels, the shape of human civilization, and humanity's environmental impact.

You can use CNG for buses and garbage trucks, but not for highway traveling trucks as LNG has only 60 % of the energy density of diesel and 70 % that of gasoline.

in the Perpetuum Mobile thread w / gravity where in 2.1 find «Temperature is just another name for the mean kinetic energy density of molecular motion.»

Energy density of renewables is another problem.

Our power tower will be amongst the tallest and therefore allow the highest energy density of any of these plants.

Also, your world calculations seem to be done using a constant energy density of 3.6 boe / t for coal.

The energy density of these fuels is low and the amount of land that must be effectively industrialized, even for relatively small quantities of biofuels or biomass - derived electricity, is massive.

Therefore, as the energy density of the battery module increases over time, I'll be swapping out depleted battery modules for the new technology modules.

Since the volumetric energy density of ammonia is three times that of liquid hydrogen, and ammonia combustion can be exceptionally efficient (about the same as burning diesel fuel in turbodiesels), it may be true that a hydrogen economy based upon OTEC and ammonia may be close at hand.

If the energy extracted after the CO2 doubling is endemic to a smaller volume of air than before then the energy density of that volume has increased, and by the definition of Temperature in kinetic theory of gases, it is therefore now hotter as a result of the CO2 doubling.

The high energy density of nuclear fuel provides the opportunity to substantially reduce the cost of electricity.

If you take the amount of crude oil extracted since 1850 (estimates vary, but maybe 200 billion tonnes = 200 * (10 ^ 9) * (10 ^ 3) kg) and multiply by the energy density of crude oil (~ 50MJ / kg) the result comes out at about 10 ^ 22 J which is an order of magnitude lower than the increase in ocean heat content in the upper 700m since the 1950s (~ 10 ^ 23J).

The energy density of the fuel in large measure determines its environmental impact.

Theory predicts that sodium — oxygen (Na — O) batteries could provide only half the energy density of Li — O, but that is still five times better than Li - ion batteries.

If low energy density of solar is a problem in my home state of California, where we have large deserts available for solar farms, imagine how much more of a problem it is in South Korea, which has far more people per square kilometer.

But they can never be as cheap as coal - fired electric generation because the energy density of the sun's rays are not nearly at the level of fossil - fuels like coal, so you necessarily need more physical equipment to collect the energy, and turn it into electricity.

failing to understand fungibility and energy density of FFs, and failing to understand how to design a regenerative aka sustainable community / society.

If you don't compress it, the energy density of hydrogen fuel is quite small.

Technically there are all sorts of complications — the different energy density of different liquid fuels, how electricity should be treated if used to power pure electric or plug - in hybrid vehicles — for starters, but conceptually the low carbon fuel standard is simple and elegant.

In addition to hay, rabbits need to be fed a portion - controlled quantity of concentrate food to help ensure they are getting all the vitamins and minerals they need and this should make up approximately 20 % of their daily diet (around one tablespoon of food fed in the morning and the evening — depending on the size of your rabbit and depending on the energy density of the food you are feeding, see pack guidelines for full details).

Once the puppies are born, the mother can increase her food intake, but the energy density of the food must be high enough or she will not be physically able to consume enough to sustain milk production, weight, and body condition.

A balanced amount of the necessary dietary minerals in relation to the energy density of the diet is important.

These AAFCO nutrient profiles for cat foods presume an energy density of 4 kcal ME / g dry matter.

The overall energy density of this formulation may be a bit lower due to the lower fat content, but these dogs work in short, very intense bursts, and consequently do not need consistently high calorie intake.

Fiber has been used to slow carbohydrate release to prevent blood sugar spikes and reduce the energy density of foods, but it also may reduce palatability.

The use of an alkali - metal anode (lithium, sodium or potassium)-- which isn't possible with conventional batteries — increases the energy density of a cathode and delivers a long cycle life.

Speaking to Autocar UK at the Frankfurt Motor Show, Mercedes engineering boss Dr Thomas Weber said the new car would have a range of «between 400 and 500 km [248 and 310 miles]» thanks to lithium batteries with double the energy density of current components.

Let's do a little back - of - the - envelope calculation: Assuming that the heating unit has an efficiency close to 1.0 and that automotive diesel has an energy density of ~ 39 MJ / l which translates to ~ 10kWh / l.

Purely electric was clearly the better technology today if it wasn't for the miserable energy density of current state of the art batteries - they suck - big time - and weigh insanely much on top of it!

The power output of an engine depends in part on the energy density of the fuel being burnt.

Nevertheless, the associations of the intake of plain water with dietary fiber intake (positive), energy density of foods, and total and added sugars (inverse) do suggest different dietary selections in relation to plain water intake.

Clear patterns were also not seen in the relationship between weight change and the energy density of dietary components (e.g., beverages of low energy density were strongly associated with weight gain).

Unfortunately, some people get so caught up in being ketogenic that they end up decreasing nutrient density and increasing the energy density of their diet so much that they end up putting on weight due to an excess energy intake.

In the current study, no positive association between the consumption of high - fat dairy products and weight gain was observed that might have been expected because of the higher energy density of these products.

Using a bomb calorimeter to measure the heat of combustion of various proteins, carbs, and fats, they determined the energy density of dietary protein = 4.1 calories / gram, carbs = 4.1 calories / gram, and fat = 9.3 calories.

And the energy density of foods is of interest for weight management not only because it allows people to eat satisfying portions while limiting calories, but also because reductions in energy density are associated with improved diet quality.

How to eat big and lose If you want to determine the energy density of the foods and beverages you're consuming, here's an easy way to calculate energy density based on the product label: Start by comparing the serving - size weight in grams to the calories.

Chia seeds help reduce your caloric intake by filling you up and helping lower the energy density of certain foods — ultimately, assisting greatly in weight loss.