In areas where the air temperature remains below 0°Cfor prolonged periods of time, the freezing of water in undergroundpipes is a major concern. Fortunately, the soil remainsrelatively warm during those periods, and it takes weeks for thesubfreezing temperatures to reach the water mains in the ground.Thus, the soil effectively serves as an insulation to protect thewater from the freezing atmospheric temperatures in winter.The ground at a particular location is covered with snowpack at 28°C for a continuous period of 60 days, and theaverage soil properties at that location are k 5 0.35 W/m·K anda = 0.15 * 10-6 m2/s. Assuming an initial uniform temperatureof 8°C for the ground, determine the minimum burialdepth to prevent the water pipes from freezing.

Q: One winter day, the climate control system of a large university classroom building malfunctions. As…

A: Let Q denote the heat needed to warm up the air, m denote the mass of the air, V denote the volume…

Q: A 3-m-internal-diameter spherical tank made of 1-cm-thick stainless steel (k = 15 W/m. K) is used to…

A: Outer surface area of the tank is,

Q: A thermopane window consists of two glass panes, each 0.50 cm thick, with a 1.0-cm-thick sealed…

A:

Q: An aluminum kettle sitting on an electric hot ring contains 2.00 kg of boiling water at 100 degrees…

A: Latent heat of evaporation of water=2260×103J/kgHeat required (Q) to evaporate 2kg of boiling water…

Q: A tank of water has been outdoors in cold weather, and a slab of ice 4.1 cm thick has formed on its…

A:

Q: An electric toaster works by radiative heat transfer. On each side of a four-slice toaster, there…

A: Let P be defined as the power the toaster consumes while operating. Therefore, using Stefan’s law,…

Q: In 2 room where walls are at 25 degree C, a steam pipe with a surface temperature of 200 degree C,…

A: Given   Wall temperature T∞     = 25° + 273 = 298 KSurface temperature Ts = 200° + 273 = 473…

Q: The north wall of an electrically heated home is 20 ft long, 10 ft high, and 1 ft thick, and is made…

A: The rate of the heat loss through the wall is

Q: Consider the rate of heat conduction through a double-paned window that has a 1.4-m2 area and is…

A:

Q: 13. (a) Calculate the convective heat loss per hour for a nude standing in a 5 m/sec wind. Assume T,…

A: Answer (a)  ∆T = 330c - 100c = 230c Kc = 27.8 at 5 m/s  Hc =( 27.8 × 1.2 × 23) Kcal/h  Hc = 767.28…

Q: reenland ice sheet is thought to affect (or be affected by) climate in the North Atlantic and…

A: We know that the formula  heat required by the to melt the ice is given as  Q= mL  Where Q is the…

Q: the Arctic assume sea ice is approximately 2m thicker in winter than in summer. Melting sea ice…

A: 1st we will find the mass of the ice cube and then heat required  to melts this much mass of the ice…

Q: The rate of heat conduction out of a window on a winter day is rapid enough to chill the air next to…

A:

Q: Calculate the temperature the entire sky would have to be in order to transfer energy by radiation…

A: Given:- Power per unit area is 1000 W/m2 Temperature of the body is 27℃=300 K To find:- Temperature…

Q: In humid climates, people constantly dehumidify their cellars to prevent rot and mildew. If the…

A: Given Data: The temperature is, T=20oC The area of a floor space is, A=105 m2 The height of a…

Q: An energy technician is investigating energy loss through windows. The windowpane of interest is…

A: Given: Thermal conductivity of windowpane = 0.8 W/(m · °C) Thickness of windowpane = 0.5 cm = 0.005…

Q: The rate of heat conduction out of a window on a winter day is rapid enough to chill the air next to…

A: Area, A =  3 m2 thickness, d = 0.635 cm  T' = 5 C T = - 10 C K = 0.8 W/ m K

Q: You have soil (p = 2050 kg/m^3, k = 0.52, c_p = 1840 J/kg - k) that is at an initial temperature of…

A: Sure, The question asks to determine the minimum depth at which a water pipe needs to be buried to…

Q: One winter day, the climate control system of a large university classroom building malfunctions. As…

A: The heat transfer and temperature change is related as, Q=mc∆T Here, Q is the heat transfer, m is…

Q: The rate of heat conduction out of a window on a winter day is rapid enough to chill the air next to…

A:

Q: Students on a spring break picnic bring a cooler that contains 5.1 kg of ice at 0.0 °C. The cooler…

A: We must ascertain how quickly the heat moves into the cooler. We are aware that the cooler's wall is…

Q: The energy released from condensation in thunderstorms can be very large. Calculate the energy…

A: From the given information, we can say that, ρwater=1000 kg/m3R=1 km=1×103 mh=1 cm=1×10-2…

Q: The roof of an electrically heated home is 12m long, 16m wide, and 0.50m thick, and is made of a…

A: Given : Length , L = 12 m ; Width, w = 16 m  Thickness, x = 0.50 m ; Thermal conductivity, K = 0.8…

Q: Calculate the rate of heat conduction through a double-paned window that has a 1.50-m2 area and is…

A:

Q: You drive a car on a winter day with the atmospheric air at -15 and you keep the outside front…

A: To find the rate of energy loss (q) through the front windshield, we can use the formula q = hAΔT,…

Q: a) Calculate the rate of heat conduction (in W) through a double-paned window that has a 5.00 m2…

A: Given, Area A=5.00 m2 d=0.600 cm=0.6×10-2 m T1=20 T2=-18

Q: The thermal conductivity of snow varies by how tightly packed it is, but for snow of 100 kg/m3…

A: Given information: The density of the igloo = 100 kg/m3 The thermal conductivity of the building k =…

Q: winter hikers dog generates heat at a rate up to a maximum value of 120 W. She is hiking on a brisk…

A:

Q: A tank of water has been outdoors in cold weather, and a slab of ice 6.7 cm thick has formed on its…

A:

Q: A container of water has been outdoors in cold weather until a 5.0-cm thick slab of ice has formed…

A: Given Thickness (y)         = 5.0 cm  = 0.05 m Temperature θ   = -10°C  ( Temperature difference θ =…

Q: 1- A sheet of BCC Fe 1.0 mm thick is exposed to a carburizing gas on one side and a decarburizing…

A:

Q: A building science major is investigating energy loss through windows. The windowpane of interest is…

A: (a) Rate of heat transfer H=kA∆Td=0.8 Wm·°C0.88 m ×2.30 m28.0°C0.950×10-2 m=4772 W

Q: The rate of heat conduction out of a window on a winter day is rapid enough to chill the air next to…

A: Area = 3 m2thickness = 0.61 cm  = 0.0061 m temperature difference = 15 C

Q: One winter day, the climate control system of a large university classroom building malfunctions. As…

A: Given: The volume of cold air is 500 m3. Time duration is 1 min. The temperature change is 10…

Q: You have just been to the shops and purchased a 3kg bag of ice (assume all at 0°C) to cool a 24 pack…

A:

Q: A liquid food (density = 1,010 kg/m3, k =.5W/m°C, Cp = 3,000J/kg°C) is being heatedfrom an initial…

A: (a) The Biot number is a dimensionless quantity, which is used in the calculations of the heat…

Q: You're considering purchasing a new sleeping bag whose manufacturer claims will keep you warm to…

A: Given that the bag's thickness is 4.0 cm, the rate at which the body generates heat is 100 W, and…

Q: A certain Volkswagen Beetle is air-tight, so that when the doors are closed and the windows rolled…

A:

Q: 13. (a) Calculate the convective heat loss per hour for a nude standing in a 5 m/sec wind. Assume…

A: (1) Velocity of wind, v1 = 5 m/sSkin temperature, Ts = 33°CAtmospheric temperature, Ta =…

Human Metabolism

Being described as the most complicated machine ever encountered by humans, the human body and the cell metabolism is nothing less than a wonder. Metabolism is the set of life-sustaining chemical reactions within organisms.