How do you use Normand's Rule to find the pressure (P), wet bulb temperature (Tw), the temperature (T), an the dew point temperature (Tdew)?
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How do you use Normand's Rule to find the pressure (P), wet bulb temperature (Tw), the temperature (T), an the dew point temperature (Tdew)?
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- If a pneumatic cylinder has a volume of 14 cu. in. at 1000 PSIG (1000 Pounds per square inch gauge) when the temperature is 85°F and then the temperature is elefated to 125°F by compression to 12 cu. in. What does the gauge pressure increase to?Presents the diagram of the problem, necessary formulas, clearance and numerical solution: The filament of an incandescent lamp has an area of 50 mm2 and operates at a temperature of 2,127 ◦C. Assume that all the energy supplied to the bulb is radiated by it. If the emissivity of the filament is 0.83, how much power must be supplied to the bulb when it is in operation?(1) Hydrostatic balance states Op Əz Equation -1 where p is pressure, z is altitude, p is density and g is the acceleration due to gravity. It can be shown that the reciprocal of hydrostatic balance also applies. That is Equation -2 дz Әр = -Pg, = 1 pg Use the ideal gas law (p = pRT, where R is the gas constant for dry air and Tis temperature) to eliminate p from (2). (2) Under geostrophic balance, the following balance is approximately satisfied Equation -3 fu=-g ¹ (3) where f is the Coriolis parameter, u is the zonal wind, y is meridional distance and z is altitude. (Note that the derivative on the right hand side is taken at constant pressure.) Differentiate (3) with respect to p, and use your expression from part 1 to obtain an expression relating du/ap and T/ay. This expression is called "thermal wind balance".
- What is the standard unit of temperature in the SI? (Do not abbreviate; for example gram not g.)Needs Complete typed solution with 100 % accuracy.Solve the following: a) A house walls that are 15 cm thick and have an average thermal conductivity four times that of glass wol. Assume there are no windows or doors. The walls' surface area is 950000 cm? and their inside surface is at 23 °C, while their outside surface is at 4°C. (Thermal conductivity of glass wool is 0.042 W/m°C) O Calculate the rate of heat conduction through house walls? (ii) How many 150W room heaters would be needed to balance the heat transfer due to conduction? (approximate number) b) A spherical infrared heater of radius 5.15 cm has an emissivity of 0.75. What temperature must it run at if the required power is 0.38 kW? Neglect the temperature of the environment. (Stefan's constant = 5.67*10-8 Wm 2K4) The temperature of the heater in Celsius =