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?

Answers: 2

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:10, danksans7011

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

Answers: 1

continue

Engineering, 04.07.2019 18:10, sarahgrindstaff123

Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.

Answers: 2

continue

Engineering, 04.07.2019 18:10, winterblanco

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

Answers: 3

continue

Engineering, 04.07.2019 18:10, soreese02

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

Answers: 2

continue

Do you know the correct answer?

In laying water mains, utilities must be concerned with the possibility of freezing during cold peri...