"Heat naturally flows from hot to cold. It's a spontaneous process."
"Heat cannot of itself pass from a colder to a hotter body."
"Know your cap, pick a transfer that applies at a lower temperature and pressure."
"Our main source of infrared radiation is the Sun. Now we know this gives off radiation because we know it feels hot."
"Convection is the way that heat is transferred in a fluid. When a fluid gets heated up, the particles start to move."
"It's all about heat transfer. We're transferring heat by thermodynamics."
"When the iron is super hot, it puts the heat into the PCB super fast."
"...because the heat can't distribute through the material as it's burning or transitioning all of the heat is concentrated in that very thin micron thin shell of expanding reaction..."
"Heat that increases the temperature of a substance is called sensible heat."
"One unique thing about refrigerants is they have a very good capacity to absorb and release heat."
"Water is very good at transferring that heat out and into the water."
"You actually get five times as much heat out as you put energy in."
"Warm materials tend to lose heat to cooler ones when the materials are in direct contact with one another. The process of heat transfer is called conduction."
"Surface area to volume ratio. Well, the more surface area you have, the more heat loss you're going to have."
"Flow of heat was a one-way process that seemed to be built very fundamentally into the workings of the entire universe."
"The temperature of the surroundings increases as heat flows into it."
"It's impossible for a self-acting machine denoted by any external agency to convey heat from one body to another at a higher temperature."
"It will literally set up a mini convection current above the coffee that keeps repeating itself speeding up the process of cooling down that coffee."
"It can travel in solids, liquids, and gases and that kind of automatically makes it the most difficult to try and prevent heat losses via."
"Loft insulation contains lots of air spaces, air is a good insulator preventing conduction heat losses."
"As hot stuff rises because it expands...you have this cycle...convection cycle."
"Heat transfers: anyone can do this from home."
"Pros of using heat transfers: anyone can do this from home."
"The condenser takes that heat and moves it to a place where it doesn't matter."
"The heat energy will move from where it's hotter to where it's cooler; thank the Lord that that's the way He made it."
"Heat always flows from the hottest to the coldest component in any system."
"Thermodynamics and heat transfer is a very interesting subject."
"Energy will flow from the hotter, the system of higher temperature, to the system of lower temperature."
"The new Cricut Easy Press 3 is for anyone who wants a guided step-by-step heat transfer experience."
"Having a balance of all three sides is going to create a truly flawless transfer."
"Heat is energy being transferred from one object to another because of the temperature differences between those objects."
"Conduction: transfer of heat from molecule to molecule."
"The latent heat of condensation is a warming process, the heat released when water vapor condenses to form liquid."
"The first way the earth loses heat is at spreading ridges, taking hot material from inside the earth, transferring it to the surface where it cools down."
"Heat will always flow from warmer to cooler."
"The heat change of a system is equal in magnitude but opposite of sign of the surroundings."
"It is cold peel or hot peel, that means that after I finish pressing my image onto my shirt, I don't have to wait for the image to cool down before I peel it off."
"The heat equation is a partial differential equation. But it's not as complex as it seems - it's really just a simple energy balance."
"The heat equation is often written using the Laplace operator."
"Earth's core, there's convection going on, it's trying to remove heat through that convection."
"And always remember to check the heat and timing needed for your vinyls."
"We want to know how much heat energy was transferred to that solution."
"The amount of heat energy, or Q, is directly proportional to the mass, m, and the temperature change, delta T, of the substance."
"You'll get the hang of working these heat problems."
"This causes large amounts of heat to be transferred into the mantle through conduction where it heats up the rock causing it to start rising: A Mantle Plume forms."
"Iron on vinyl needs a heat source to transfer it, so that could be a household iron or a heat press like the EasyPress."
"Energy will go from the thing that's hotter to the thing that's colder."
"Convection is fast. Radiation is even faster."
"This one works really well with heat transfer vinyl, great for t-shirts."
"Moist heat requires shorter time as compared to dry heat because water conducts heat better than air does."
"When you heat ice into steam, the temperature will not go up directly with heat added."
"This is Thermal Grizzly's Carbonaut thermal pad, infused with carbon tubes designed to transfer heat efficiently and effectively from the heat source to the heat sink."
"That negative sign means that heat was released instead of being absorbed."
"Wind wicks heat away, it pulls heat away from anything that it touches."
"The higher the thermal conductivity, the shorter the time it takes for the temperature to decrease."
"The flow of heat is equal to a difference in temperature divided by -- I'm going to call that thermal resistance."
"That's convection. One over H outside."
"The second law of thermodynamics states that heat always moves from hot to cold."
"Understanding the basics of heat transfer is going to be important in interpreting our images."
"No process is possible whose sole result is transfer of heat from cold to hot."
"Heat is defined as the energy that flows from a higher temperature object to a lower temperature object because of difference in temperatures."
"In order to change the temperature of a substance, heat must be supplied or removed for this change to occur."
"When heat is added to a substance to increase its temperature, that amount is positive; when heat is removed, that amount is negative."
"The net effect of all that would be to decrease the thermal resistance and increase the total rate of heat transfer."
"Superheat tells you that all the possible heat transfer has occurred and there's only gas refrigerant that's being fed to the compressor."
"These thermoelectric coolers, these Peltier elements, suck heat out of the cold heat sinks and move it only a couple of millimeters."
"Heat transfer processes can be quantified in terms of appropriate rate equations."
"There are three different heat transfer mechanisms: thermal conduction, thermal convection, and thermal radiation."
"Conductive heat transfer is actually a really big deal with aluminum drink coasters."
"Transfer by electrons, yes; vibration of atoms of the metal bar, so lattice vibration, yes."
"The brakes are hot, the transmission's hot, the rear end's hot, all that goes just straight to the driver."
"You want it to look super shiny and super clean, and that means that the heat's gonna transfer very quickly."
"If the problem is specified by the hot fluid on one side and cold fluid on the other, then we can find out the heat flux knowing only the hot fluid temperature and the cold fluid temperature."
"The heat transfer problem is steady, that means their temperature is one-dimensional because of the geometry and the boundary conditions."
"Of course, you want to know how much heat is being lost by the hot oil pipeline to the cold oil pipeline."
"In today's session, we first of all learned how to set up a heat source for a solid domain."
"Conduction often takes place through direct contact of molecules with each other."
"The rate of heat transfer is proportional to the temperature gradient into the area."
"The average heat transfer coefficient... varies with temperature."
"When you talk about heat transferring, you're talking about energy moving from one object or material to another."
"Radiation is the heat transfer through electromagnetic waves."
"For a bit of safety, clone the steady-state simulation with saved results and then start the transient heat transfer from there."
"Refrigerators, any form of mechanical refrigeration, doesn't make cooling so much as it moves heat elsewhere."
"Q equals KA delta t over delta x. Simple."
"All the heat that comes into the face by conduction goes into the fin."
"All that heat is carried out by convection."
"This course is going to cover all of the things associated with heat transfer, also known as thermodynamics."
"Heat transfer only goes in one direction, from hot to cold."
"There's going to be some circulation from the hot outside to the cool inside, there will be a circulation cylinder there from fluid mechanics, natural convection."
"Oil is not a good conductor of heat, but heat transfer oil conducts heat a lot better."
"The first way is by stitching the patch onto the cap using our embroidery machine, and the second way is by using our heat press to heat transfer the patch onto the cap."
"When you say the metal gets hot, how does the water know the metal is hot? Through vibrational modes."
"If you have the metal, it's going to get a lot hotter, so that temperature is going to be transferred much more effectively than it will be through concrete."
"Thermal analysis deals with the heat transfer through different geometries."
"It's the ability of a material to transfer heat efficiently that plays a significant role in cooling electronics."
"We focused on structural mechanics in the previous tutorials; this time, we're going to perform a heat transfer analysis."
"If well insulated, we can often say that there's no heat transfer in or out."
"Cooling is a process in which the heat transfer takes place from higher temperature to lower temperature."
"Heat pump is used for pumping the heat from a lower temperature to a higher temperature."
"The rate of heat transfer from the plate to the fluid is being influenced by the flow of fluid."
"A really thorough and rigorous analysis might involve solving the actual heat equation in two dimensions for each separate solid."
"Under certain conditions, we can study the heat transfer here by neglecting the temperature variation within the ball."
"Heat always goes from the area with a hotter temperature to the colder temperature."
"Radiation is a mode of heat transfer which does not require any medium between the interacting bodies."
"When two objects are in thermal contact, heat will move from the higher temperature to the lower temperature object until the two objects are in thermal equilibrium."
"Let's start with what heat actually is. There are three types of heat transfer: radiative, conductive, and convective."
"The heat lost by the copper is going to equal the heat gained by the water."
"An endothermic process... feels cold because it is sucking heat out of your hand and depositing that heat into its own bank account."
"The condensers are designed to efficiently transfer the heat from the steam to a separate coolant."
"A cylindrical wall carries a hot fluid which creates an elevated temperature at its inner wall."
"The only way for heat to be transferred is by radiation."
"You can also increase heat transfer coefficient by adding spiral fins."
"Heat flows from a hot reservoir to a cold reservoir in a cyclic process."
"Emissivity is the rate of radiation emitted from a surface... a blackbody has an emissivity of 1, meaning that it rejects the highest amount of heat via radiation."
"Radiation is heat transferred via electromagnetic waves or photons... it doesn't matter that there's a vacuum in between; radiation is passed via electromagnetic waves which can pass through anything."
"Convection is heat transfer between a solid surface and a flowing fluid... as the wind is blowing past your arm or your face, it's taking away more heat than if the air were to just be stagnant."
"The rate of heat transfer is equivalent to the mass flow rate... multiplied by the specific heat of that air... multiplied by the temperature differential."
"Convection is the transfer of heat by the movement of a heated fluid."
"The overall heat transfer coefficient... rearranges the equation so that it looks more like Newton's law of cooling."
"Heat is that kind of energy in transit which is transferred because of temperature difference from high temperature to low temperature."
"Fourier's law of heat conduction forms the foundation pillar of the conduction and the convection heat transfer."
"The internal fin structures are very important for getting heat into the phase change material."
"The heat equation is certainly a very important PDE."
"This is the heat equation because it measures or describes how heat moves around a region if there is no heat being generated within that given region."
"Saving energy: high delta T means more efficient heat transfer."
"What we're seeing here is some diffusion of the heat, so it's going from white to yellow to orange, and then as it cools down more towards a ready color."
"Thermal radiation is unique in that it's the only one of the three modes of heat transfer that can occur in a vacuum."
"We should get a physical sense of the mechanisms for heat transfer: conduction, convection, radiation."
"Conduction can go through solids, liquids, gases; it's just material that has no bulk motion."
"If you want to help heat transfer, you push the fluid, pull the fluid, move the fluid."
"Radiation heat transfer is electromagnetic in nature."
"In order to have heat transfer, there must be a temperature difference."
"The refrigerant evaporates by absorbing heat from the secondary fluid, hence the secondary fluid gets cooled."
"Heat transfer vinyl is a vinyl that has a permanent adhesive that is heat activated."
"No process is possible that results solely in a transfer of heat from a cooler to a warmer body."
"When I want to calculate heat transfer, I'm interested in heat flux; when I want to calculate charge and current, I'm interested in current flux."
"As the vapor flows through the pipe inside the fridge, it absorbs and removes heat from the food inside."
"The more surface area you have, the more heat you can pull away from it."