Ads
related to: slant fin baseboard heat installation cost comparison calculator tool table- Install a Thermostat
Hire a professional to install a
thermostat. Enter your zip to start
- Heating Pro Costs
Compare quotes for your project.
Enter your zip to get started now.
- Repair Your Thermostat
Hire an expert to repair your
thermostat. Enter your zip to start
- HVAC pros
Find a pro for your project.
Get a free quote today!
- Install a Thermostat
Search results
Results from the WOW.Com Content Network
Equivalence of direct radiation (EDR) is a standardized comparison method for estimating the output ability of space-heating radiators and convectors. Measured in square feet, the reference standard for EDR is the mattress radiator [ 1 ] invented by Stephen J. Gold in the mid 19th century.
The CLF is the cooling load at a given time compared to the heat gain from earlier in the day. [1] [5] The SC, or shading coefficient, is used widely in the evaluation of heat gain through glass and windows. [1] [5] Finally, the SCL, or solar cooling load factor, accounts for the variables associated with solar heat load.
A radiator is a device that transfers heat to a medium primarily through thermal radiation.In practice, the term radiator is often applied to any number of devices in which a fluid circulates through exposed pipes (often with fins or other means of increasing surface area), notwithstanding that such devices tend to transfer heat mainly by convection and might logically be called convectors.
The fin material should preferably have high thermal conductivity. In most applications the fin is surrounded by a fluid in motion, [ 1 ] which heats or cools it quickly due to the large surface area, and subsequently the heat gets transferred to or from the body quickly due to the high thermal conductivity of the fin.
Here, is the overall heat transfer coefficient, is the total heat transfer area, and is the minimum heat capacity rate. To better understand where this definition of NTU comes from, consider the following heat transfer energy balance, which is an extension of the energy balance above:
These first Heisler–Gröber charts were based upon the first term of the exact Fourier series solution for an infinite plane wall: (,) = = [ + ], [1]where T i is the initial uniform temperature of the slab, T ∞ is the constant environmental temperature imposed at the boundary, x is the location in the plane wall, λ is the root of λ * tan λ = Bi, and α is thermal diffusivity.
Ads
related to: slant fin baseboard heat installation cost comparison calculator tool table