Calculate the heat-transfer rate and exit temperatures for

Assignment Help Mechanical Engineering

Reference no: EM13620225

An air preheater for a power plant consists of a cross-flow heat exchanger with hot exhaust gases used to heat incoming air a 1 atm and 300 K. The gases enter at 375°C with a flow rate of 5 kg/s. The air flow rate is 5.0 kg/s, and the heat exchanger has A = 110 m2 and U = 50 W/m2 ? °C. Calculate the heat-transfer rate and exit temperatures for two cases, both fluids unmixed and one fluid mixed. Assume the hot gases have the properties of air.

Reference no: EM13620225

Questions Cloud

Find the minimum required diameter of the bolt to the : a structural support is installed within a space craft. the support is made of 7075-t6 aluminum plut t-ult 250 mpa and

Determine net work input per unit mass of air flow in kjkg : air enters the compressor of a brayton refrigeration cycle at 100 kpa 270 k. the compressor pressure ratio is 3 and the

What are the conditions for using the standard deviation : part 1 what are the conditions for using the standard deviation formula when conducting a significance test? be

If the temperature of the surroundings is 300k then : supose you have one mole of an ideal gas t1300k in a container and you want to compress it isothermally by a constant

Calculate the heat-transfer rate and exit temperatures for : an air preheater for a power plant consists of a cross-flow heat exchanger with hot exhaust gases used to heat incoming

What is the final pressure pf in the tires assuming : starting out a trip from a mountain you inflate the tires on your car to a pressure of 321kpa pi when the temperature

What is the expression for calculating the acceleration of : what is the expression for calculating the acceleration of a motor given the moment of inertia and the accelerating

Calculate the posterior probability that you can use the : the claim size for a certain insurance policy is a pareto random variable with density function . the parameter is

What is the maximum torque it can supply at 120 rated speed : if a vsdmotor combination has a torque of 100 n.m at the rated speed and full power what is the maximum torque it can

User Account

All Pages