Why not give us the whole problem? It is pretty hard to figure out what you are talking about from what you have written. Is it possible that thermal conductivity could be part of the problem?williamx11373 said:I need to use the equation ( thermal resistance for convection)
R= 1/hA
but I am not given an Area, I am only given 4 meters as a thickness. how do I find A to use for the equation to solve for R.
There are three types of heat transfer: conduction, convection, and radiation. Conduction is the transfer of heat through a solid material, convection is the transfer of heat through a fluid, and radiation is the transfer of heat through electromagnetic waves. To determine the type of heat transfer problem, you must consider the material involved and the presence of a fluid.
The rate of heat transfer is affected by several factors including the temperature difference between two objects, the thermal conductivity of the material, the surface area and distance between the objects, and the presence of any insulating materials.
The rate of heat transfer, also known as heat flux, is calculated using the following formula: Q/t = kA(T2-T1)/d where Q is the heat transfer rate, t is the time, k is the thermal conductivity, A is the surface area, T2-T1 is the temperature difference, and d is the distance between the two objects.
Steady-state heat transfer refers to a condition where the temperature difference between two objects remains constant over time. Transient heat transfer, on the other hand, refers to a situation where the temperature difference changes over time. Transient heat transfer problems require more complex calculations.
To solve a heat transfer problem, you must first identify the type of heat transfer and gather all necessary information such as material properties and boundary conditions. Next, you can use mathematical equations or software to calculate the rate of heat transfer. It is important to double-check your calculations and consider any assumptions made during the problem-solving process.