Sentences with phrase «time heat loss»

Not exact matches

SpaceShipOne itself suffered several such problems in its three space flights, including the loss of its navigation system, a sudden lurch that carried the ship some 30 miles off course, the buckling of the aircraft's skin from the rocket motor's heat, and an uncontrolled wobble that spun the craft around at high speed some 20 times before pilot Melvill — he flew the first prize - winning flight, Binnie the second — stilled it, possibly just in time to prevent a fatal tumble.

Secondly, if you lift the lid during cooking, your cooking time will increase due to heat loss.

The literature over time shows the important impact of high temperature and time of heating on the loss of biochemical principle of human milk.

Predicting and controlling heat loss will be crucial for ITER, the international tokamak under construction in France, in which temperatures are to reach 150 million degrees Celsius, or 10 times the heat at the core of the sun.

European wheat production areas have to prepare for greater harvest losses in the future when global warming will lead to increased drought and heat waves in southern Europe, and wet and cool conditions in the north, especially at the time of sowing.

NCAR, which is financed in part by the National Science Foundation, has spent several years searching for ways to extend the predicability of floods, droughts, heat waves and other extreme weather events from weeks to months as a way to give weather - sensitive sectors such as agriculture more time to protect themselves against costly losses.

At the same time, the scientists found that polar bears use an unusual physiological response to avoid unsustainable heat loss while swimming in the cold Arctic waters.

To take a specific example, the largest deviation (missing heat) was adequately explanained by increased heat exchange between 0 - 700 and 700 - 2000m ocean layers, so would it now be time to get the Arctic ice loss and the China - India brown cloud effect on Siberia and North Pacific correct?

Very short (fs) single pulses improve the photothermal efficacy by minimizing heat loss by NPs, though at the same time they limit the efficacy of PT conversion, since maximal energy is limited by the optical breakdown threshold.

The big concern here is loss of these compounds over time due to aging and exposure to oxygen, light and heat during transportation.

This reduced cooking time can mean less loss of water - soluble nutrients due to reduced time of exposure to heat and water.

Under perfect launch conditions, the Sonic RS would have the better of the Swift 10 out of 10 times, but the difference was almost negligible to the point that a poor launch on the part of Chev would result in a dead heat, or even a loss for the turbocharged competitor.

Engine warm - up time is minimised through the installation of a new coolant by - pass system that helps to reduce heat losses in engine coolant during start - up.

[75] Two additional systems are added to the RX 450h's Lexus Hybrid Drive powertrain, an exhaust heat recovery system to reduce engine warm - up periods (optimizing engine start - stop times, particularly in cold conditions), [76] and a cooled exhaust gas - recirculation system to reduce fuel pumping loss.

WHY: If you've never checked out your pipes, now is an ideal time to make certain they aren't exposed to pressure, excessive moisture and heat loss during the winter.

Answer: If she only had patchy, odd - looking hair loss I wouldn't worry as much because Huskies will sometimes blow some of their coat this time of the year if they are primarily indoor and you have started turning the heat on - BUT, in her case, the scabs, redness and pus are definitely not normal.

What I was concerned about is her coming in heat, we do not want to breed her, but our Vet said that «They — have researched spaying the larger breeds of dogs before they go through one or two heat cycles, and found out that was one of the reasons they have discovered they have physical problems later in life» ---- We have been married for 51 years, and have never been without two labs at one time (a dog needs a dog companion, the same as humans) when we lose one, we all mourn her loss, so we get her a puppy and we start another member of our family.

At the same time, other research shows that increased heat will be detrimental to many domesticated cereal crops, plus it will promote increased loss of soil moisture, both of which will promote reduced crop yields.

Then he used that time series to drive a simple linear globally averaged mixed layer ocean model incorporating a linearized term representing heat loss to space.

With Pakistan bracing for more flooding, Russia facing the destruction wrought by extreme heat and wildfires and a variety of American communities slowly recovering after extraordinary floods earlier in the year, it's a good time to examine ways to limit losses in turbulent times and changing climes.

The essence of the greenhouse effect is that the atmosphere inhibits energy loss (to space) so that for a given rate of solar energy input, the temperature of the surface has to be greater in order to allow the necessary amount of heat to be lost per unit time.

Of course, in such a time average, each location's fluxes (energy, and also momentum and mass) are balanced, with vertical imbalances (generally a net gain in heat at lower latitudes and net loss in higher latitudes, especially in winter) are balanced by horizontal fluxes.

Given that the uncertainties in the sea level budget are on the order of 0.1 mm / year, that implies that the «latent heat» loss to space has to be some many times less than what I first postulated.

Re 40 simon abingdon — there is very little mass loss to space (can be significant for evolution of conditions over geologic time or in more extreme conditions, but not for Earth like conditions over the timescales over which climatic equilibrium is determined), and latent and sensible heat are transported by conduction and convection and mass diffusion, which can't significantly extend outside the atmosphere.

The heat would also cause staple crops to suffer dramatic yield losses across the globe (it is possible that Indian wheat and U.S. corn could plummet by as much as 60 percent), this at a time when demand will be surging due to population growth and a growing demand for meat.

Most of them are single - pane, and they work great during the afternoon for passive solar gain, but at other times they represent a huge loss of heat for Thomas during the winter.

To reduce the travel time of water through pipes, and the resultant loss of heat, the heaters are place close to the points of use.

I have just definitively proven above that it is not a feature of static equilibrium, it is a dynamic phenomena caused by differential and irregular time dependent heating and cooling, where the bulk of the heating is at the surface, but where heat loss occurs to some extent very high up in the atmosphere as well.

IF co2 were retaining heat would not the satellites record a drop in escaping heat from the Earth, last time I checked there was no appreciable change in radiative heat loss from the Earth

The advantages of this approach over entering the geometry directly into PHPP are, firstly that it should save time on data - entry and secondly that it is possible to visually verify in the 3D model that all the heat - loss surfaces have been correctly taken into account.

But in any case the difference between constant pressure and constant volume is only a factor of 7/5 in the case of air, whereas latent heat increases PV about five times as fast as vapor loss contracts it at any realistic temperature.

If the heat loss rate is reduced by using insulation, it will take some time for the water to cool enough to form significant ice.

northern Scandinavia) cloudy days in November and December are typically warmer than cloud - free days because the Earth's surface has a net radiation loss at the time (i.e. outgoing heat loss exceeds radiation received from the sun).

Convection is 40 times intensive than heat conduction and the reduction of convection by diminishing the temperature gradient between the bulk and surface will give 40 times higher reduction of losses.

This study shows that warm, fresh surface layers in summer are followed by reduced heat losses in winter, shortening the time for convection.

A new study for the first time found links between the rapid loss of snow and sea ice cover in the Arctic and a recent spate of exceptional extreme heat events in North America, Europe, and Asia.

The air mass for radiation heat loss does NOT change with latitude or time of day.

A leaky building compared with an airtight one, otherwise similarly thermally insulated, can have up to five times more heat losses.

The effect any previous year of sea ice reflectivity or heat loss or heat gain has been lost over the previous winter, and each year's energy budget must stand alone: That sea ice was near recent all - time highs in March and April 2012 indicates that an all - time sea ice low in September can't be attributed to any particular sea ice measurement in 2011, 2010, or 1979.

Also, radiation heat losses from the ice at 5:00 AM at latitude 80 north are the same as they are at Noon (local solar time) at latitude 84 north, and the same as they are at midnight at the pole.

Heat diffusion and permafrost melting takes time — in fact, the deeper Arctic permafrost can be seen as a relic of the last glaciation, which is still slowly eroding — so any significant loss of permafrost soil carbon will happen over long time scales.

Look at the discussion and you'll see that rapid loss happens on some runs, without any need to find some mysterious unknown heat source or current or wind — not always, not the same year each time, but it was known from that work as a possibility.

In day time the amount of water at saturation point increases with AGW, but more water means more heat loss and greater pressure drop at night

But I only get a third as much heat per unit of CO2 produced because of losses in electrical generation and transmission, so I produce three times as much CO2 to keep warm.

Re ice loss — for sea ice loss, you'd have to take a time integral over the year of the latent heat of melting * ice mass anomaly to find an annual average heat (enthalpy in this case) anomaly.

Every time you do a corner or a jog in the design, it is another possible point of heat loss, so a lot of Passivhaus designs tend to be boxy.