Sentences with phrase «lost by convection»

The mechanism is named after the effect of solar radiation passing through glass and warming a greenhouse, but the way it retains heat is fundamentally different as a greenhouse works by reducing airflow, isolating the warm air inside the structure so that heat is not lost by convection.»

Most surface heat is lost by convection not radiation.

Not exact matches

We played very well we did the hard work look it flamini was pulled by the neck that goal shouldn't have counted the second was a good delivery wish we could start scoring them corners their goal keeper made some very good saves we need to move the ball faster before it gets congested so far we only lost one match them goals will start to go in for us trust me as we are doing well we are just a little short in convection

One of the most harmful phenomena these investigations have discovered is the drift instability, which leads to small - scale turbulence of the plasma that efficiently transports heat and particles by convection to the outer regions, where they are lost and unable to contribute to nuclear fusion.

Heat is lost by radiation, convection and evaporation.

A side point here is that the ocean loses heat by radiation to both the air (thanks to greenhouse gases) and to space, and to the atmosphere by direct conduction and this, via convection and radiation, ultimately to space.

Heat is lost from the hot coffee (or tea for ya'll across the pond) by conduction convection, and radiation to a cooler body.

The idea is that heat is lost from the upper atmosphere by radiation and replaced from below by heat carried upwards with convection currents.

The implication that the upper troposphere loses energy only by one means (radiation) but receives energy by two means (radiation & convection) that would seem to increase with warming.

There is a heat flow from the surface to the upper atmosphere, largely in the form of convection currents, driven by the temperature gradient, to replace the lost heat and maintain equilibrium.

A lack of insulating sea ice vastly increases energy loss since open water loses much more energy by convection and latent heat loss.

In all other cases (with or without radiant heating by a near by star) the planet will always be losing heat to space, and will always have a troposphere layer (if it has an atmosphere of non-condensing gases) where heat transport is dominated by convection.

It is not «conduction» but exchange of radiation; if you keep your hands parallel at a distance of some cm the right hand does not (radiatively) «warm» the left hand or vice versa albeit at 33 °C skin temperature they exchange some hundreds of W / m ² (about 500 W / m ²) The solar radiation reaching the surface (for 71 % of the surface, the oceans) is lost by evaporation (or evapotranspiration of the vegetation), plus some convection (20 W / ²) and some radiation reaching the cosmos directly through the window 8µm to 12 µm (about 20 W / m ² «global» average); only the radiative heat flow surface to air (absorbed by the air) is negligible (plus or minus); the non radiative (latent heat, sensible heat) are transferred for surface to air and compensate for a part of the heat lost to the cosmos by the upper layer of the water vapour displayed on figure 6 - C.

In the real world, as you point out, the ocean during the day is almost always losing heat from incoming solar radiation to the atmosphere by convection and radiation.

Without atmosphere the surface of the ocean or land would lose o (T ^ 4 — Ts ^ 4)(1) where Ts is the temperature of the space (about 4K) while in the presence of the atmosphere the heat losses are hc * (T — Tl)(2) and o (T ^ 4 — Tl ^ 4)(3) where (2) represents the heat transfer by convection (inclusive conduction) through the air layer and (3) corresponds to the net flow due to the heat exchange by radiation, Tl being the mean temperature of the air layer.

Due to this loss of energy, the temperature of the remain water has dropped (1 / heat capacity = 0.24 degK / (kJ / kg)-RRB- OR the lost energy must be imported by: conduction (collisions transferring kinetic energy), convection (a new group of molecules with a new average energy), or absorbing radiation.

The ocean below receives energy from SWR (about 80 %) and loses energy to the skin layer by conduction and convection.

A good example is the UHI which, by reducing convection, increases temperature therefore the proportion of the incoming SW energy that is lost by radiation.

(For the earth system as a whole, the only way it can lose heat is via radiation, although heat can be transferred between different parts of the system, e.g., surface to atmosphere by convection and evaporation / condensation.)

But since the person is not in a void they would be losing a great deal of that heat by other means (conduction, convection, and evaporation) and the temperature would be much lower.