Engineering, 14.09.2019 00:10 lee2125
Apipe of outside diameter 200mm is lagged with an insulating material of thermal conductivity 0.06 w m-1k-1 and thicknes 75mm. the pipe carries a process fluid at a temperature of 300oc and above the average temperature of the outer surface of the lagging is 45c. (a) estimate the rate of heat loss per meter length of pipe. (b) explain why the thermal resistance of the pipe wall can be ignored.
Answers: 1
Another question on Engineering
Engineering, 04.07.2019 18:10
Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factor·n". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed.gi) ifn 1, what will happen to the material when transformed material when
Answers: 1
Engineering, 04.07.2019 19:10
The short distance from the objective lens to the object causes problems at high magnification. which of the following is the most serious? a. cleaning the object surface b. positioning the object c. reflection from the object surface. d. illumination of the object
Answers: 1
Engineering, 04.07.2019 19:10
Estimate the change in specific internal energy au and specific enthalpy h from inlet to outlet for ethylene glycol (a liquid) flowing through each of the following devices: (a) a heat exchanger where the glycol temperature increases from 20 °c to 80 °c; (b) a pump operating at about 25 °c and increasing the glycol pressure from 100 kpa to 8 mpa.
Answers: 2
Engineering, 06.07.2019 03:10
Asolid steel sphere (k=63.9 w m-1 k-1 , ? =7832 kg m-3 , c=0.523 kj kg-1 k-1 ), 100 mm in diameter is initially at a uniform temperature of 500o c and is suddenly quenched in a large oil bath for which t? = 100o c and h = 3200 w m-2 k-1. estimate the time required for the sphere to cool to 200o c and to 110o c
Answers: 1
You know the right answer?
Apipe of outside diameter 200mm is lagged with an insulating material of thermal conductivity 0.06 w...
Questions
Mathematics, 24.06.2019 18:00
Mathematics, 24.06.2019 18:00
English, 24.06.2019 18:00
Mathematics, 24.06.2019 18:00
Mathematics, 24.06.2019 18:00
Mathematics, 24.06.2019 18:00
World Languages, 24.06.2019 18:00
Spanish, 24.06.2019 18:00
Mathematics, 24.06.2019 18:00
History, 24.06.2019 18:00
Mathematics, 24.06.2019 18:00
