Physics, 28.05.2020 20:08 Queenvalentin
In a dairy operation, milk at a flow rate of 250 L/h and a cow-body temperature of 38.6 °C must be chilled to a safe-to-store temperature of 13 °C or less. Ground water at 10 °C is available at a flow rate of 0.72 m3/h. The density and specific heat of milk are 1030 kg/m3 and 3860 J/kg-K, respectively. A counterflow heat exchanger is used for this system. (a) Determine the effectiveness of the heat exchanger. (Ans: ε=0.895) (b) Determine the NTU of the heat exchanger (Ans: NTU=2.84) (c) Determine the UA product of a counterflow heat exchanger required for the chilling process. (Ans: 785 W/K) (d) Determine the length of the exchanger if the inner pipe has a 50-mm diameter and the overall heat transfer coefficient is U = 1000 W/m2-K. (Ans: 5.0 m) (e) Determine the outlet temperature of the water. (Ans: Tc. o=18.4 °C)
Answers: 3
Physics, 22.06.2019 13:00
Ways that industry and agriculture use physical properties to separate substances
Answers: 1
Physics, 22.06.2019 16:30
Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?
Answers: 2
In a dairy operation, milk at a flow rate of 250 L/h and a cow-body temperature of 38.6 °C must be c...
Mathematics, 03.04.2020 01:03
History, 03.04.2020 01:03
English, 03.04.2020 01:03
Mathematics, 03.04.2020 01:04
Mathematics, 03.04.2020 01:04
English, 03.04.2020 01:04
Mathematics, 03.04.2020 01:04
Advanced Placement (AP), 03.04.2020 01:04
Mathematics, 03.04.2020 01:04