- Water flows at Too₁ = 50 °C, hoo₁ = 3500 W/m² ° C in a pipe with = 1.25 cm, r2=1.33 cm and L= 1 m, the pipe has k= 16 W/m C. The outside of the pipe is exposed to a fluid with Too2=20° C, hoo₂ = 7.6 W/m²° C. Calculate the rate of heat lost by the pipe and find the temperature of the pipe outer surface T₂. Park L 8(51)
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- B-Water flows at Too 50 °C, hoo1 = 3500 W/m² ° C in a pipe with r₁= 1.25 cm, r₂ =1.33 cm and L= 1 m, the pipe has k= 16 W/m °C. The outside of the pipe is exposed to a fluid with Too2 = 20° C, hoo₂ 7.6 W/m² ° C. Calculate the rate of heat lost by the pipe and find the temperature of the pipe outer surface T₂. 0 3 + 6 f = =Q1: Water at 80 oC is pumped through 100 m of stainless steel pipe, k=16 W/m.K of inner and outer radius 47 mm and 50 mm respectively. The heat transfer coefficient due to water is 2000 W/m2.K. The outer surface of the pipe loses heat by convection to air at 20 oC and the heat transfer coefficient is 200 W/m2.K. Calculate the heat flow through the pipe. Also calculate the heat flow through the pipe when a layer of insulation, k=0.1 W/m.K and 50 mm radial thickness is .wrapped around the pipeHot water is transferred through a stainless steel pipe of 0.06m inside diameter and 5m length. The inside wall temperature is 100OC, the outside surface temperature is 80OC, the thermal conductivity of stainless steel is 16 W/mOC, and the wall thickness is 10 mm. Calculate the heat losses if the system is at steady state.
- (heat transfer ) thanks The velocity of the fluid flowing in parallel over a 500mmx500mm flat heater surface is U= 19 m/s and the inlet velocity temperature is T_∞15 C. The surface temperature of this plate is T_s140 C, the friction force is F_D=0.4 N and the surface area of the plate is A=0.32 m2. According to this;(F_D= 0.4N A=32 m2)a) Surface shear stressb) Find the coefficient of frictionc) Heat transfer coefficientd) What is the amount of heat transfer (electric power) that must be given to maintain a constant surface temperature?The steel pipe has an internal radius of 50 mm., a thickness of 5 mm. and a length of 5 m. Inside the pipe, hot fluid with temperature 80 C flows inside the pipe and cold fluid with temperature 20 C flowing outside the pipe. Let k=285 W/mC and hi= 25 W/mC, ho= 10 W/mC. Find 4.1) Heat Transfer Rate (Q) 4.2) Temperature on both inner and outer tube surfaces...A power plant condenser (heat exchanger) trans- fers 100 MW from steam running in a pipe to sea- water being pumped through the heat exchanger. The wall separating the flows is 4 mm of steel, with k = 15 W/m K, and it has 7°C difference between the two fluids. Find the required area of the heat exchanger.
- Water at an average temperature of 23 deg C flows through a 10-cm diameter pipe that is 2.5 m long. The pipe wall is heated by steam and is held at 100 deg C. The convective heat transfer coefficient is 2.25 x 10^4 W/m^2K. Find the heat flow in W.Please solve, thanksThe essential component of a toaster is an electrical element (a resistor) that converts electrical energy to heat energy. How much current is drawn by a toaster with resistance 12W at 110V?
- I need ans within 15 minutes my best wishes tonn electric generator at a power plant produces energy by passing superheated steam from a high temperature container (reservoir), through a pipe connected to a series of fans, and then into a low temperature reservoir. As the steam passes across the blades of the fans some of the heat energy of the steam is transformed into mechanical energy, which turns the fans which in turn are connected to a generator, which in turn converts the mechanical energy into electrical energy. If the high temperature steam has a temperature of 412.1 K and the low temperature reservoir has a temperature of 105.4 K, what is the Carnot efficiency of this process?Q1 (a) The temperature at the inner and outer surfaces of a boiler wall made of 25 mm thick steel and covered with an insulating material of 15 mm thickness are 350 °C and 600 °C respectively. If the thermal conductivities of steel and insulating material are 68 W/m°C and 0.126 W/mC respectively, determine the rate of flow through the boiler wall. (AT)overall Q = ΣRth