Determine the amount of money this facility will save a

Assignment Help Mechanical Engineering

Reference no: EM13640219

During a plant visit, it was noticed that a 12-m-long section of a 12-cm-diameter steam pipe is completely exposed to the ambient air. The temperature measurements indicate that the average temperature of the outer surface of the steam pipe is 75°C when the ambient temperature is 5°C. There are also light winds in the area at 25 km/h. The emissivity of the outer surface of the pipe is 0.8, and the average temperature of the surfaces surrounding the pipe, including the sky, is estimated to be 0°C. Determine the amount of heat lost from the steam during a 10-h-long work day.

Steam is supplied by a gas-fired steam generator that has an efficiency of 80 percent, and the plant pays $1.05/therm of natural gas (1 therm = 105,500 kJ). If the pipe is insulated and 90 percent of the heat loss is saved, determine the amount of money this facility will save a year as a result of insulating the steam pipes. Assume the plant operates every day of the year for 10 h. State your assumptions.

Reference no: EM13640219

Questions Cloud

A ball thrown straight upward returns to its original level : a ball thrown straight upward returns to its original level in 2.60 s. a second ball is thrown at an angle of 32.0deg

A study is run to estimate the association between exposure : a study is run to estimate the association between exposure to lead paint in childhood and attention-deficit

A potential difference of 120 v is applied to the capacitor : a spherical capacitor is formed from two concentric spherical conducting shells separated by vacuum. the inner sphere

Calculate the total amount in the two funds at the end of 2 : you are given1 fund x accumulates at an interest rate of 8 compounded quarterly2 fund y accumulates at an interest rate

Determine the amount of money this facility will save a : during a plant visit it was noticed that a 12-m-long section of a 12-cm-diameter steam pipe is completely exposed to

How does this information relate to the fact that : cyclopropane has significantly less angle strain than cyclopropane yet is only slightly lower in energy. how can this

Two parallel plates have charges of 600 x 10-4c and -600 x : two parallel plates have charges of 6.00 x 10-4c and -6.00 x 10-4c respectively.a. what is the electric field between

Suppose that a stray neutron with an initial speed of 23 : suppose that a stray neutron with an initial speed of 2.3 times 107 ms is just barely captured by a nucleus with

Determine the axial force and deformation of the diameter : a cylindrical bar of radius 15 mm and length 100 mm is held at both ends. if at 30degc no axial force exists in the bar

User Account

All Pages