subject
Engineering, 27.11.2019 01:31 mgnbrnne

In laying water mains, utilities must be concerned with the possibility of freezing during cold periods. although the problem of determining the temperature in soil as a function of time is complicated by changing surface conditions, reasonable estimates can be based on the assumption of a constant surface temperature over a prolonged period of cold weather.

what minimum burial depth x would you recommend to avoid freezing under conditions for which soil, initially at uniform temperature of 20 oc, is subjected to a constant surface temperature of -15 oc for 60 days?

ansver
Answers: 2

Other questions on the subject: Engineering

image
Engineering, 04.07.2019 18:10, hadellolo8839
Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false
Answers: 3
image
Engineering, 04.07.2019 18:10, lerasteidl
Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?
Answers: 3
image
Engineering, 04.07.2019 18:10, kevin72836
Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?
Answers: 2
image
Engineering, 04.07.2019 19:10, netflixacc0107
What is the major difference between thermoplastics and thermosetting plastics from the polymerization structure point of view?
Answers: 2
You know the right answer?
In laying water mains, utilities must be concerned with the possibility of freezing during cold peri...

Questions in other subjects:

Konu
Biology, 04.05.2021 20:20
Konu
Geography, 04.05.2021 20:20