Engineering, 21.08.2019 05:30 toniawu18
Acooling tower for an engineering process takes in air at 20 °c dry bulb with a relative humidity of 70% and discharges air at 29 °c dry bulb with a relative humidity of 95%. the air flow is recorded to be 400 m per hour at the inlet point. what is the quantity of heat energy being produced by the process and how much will it cost in top-up water alone, for an 8 hour shift, if the top-up water costs €0.20/litre. you may assume the air and humidity values are consistent during the complete 8hr shift.
Answers: 1
Engineering, 04.07.2019 18:20
Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]
Answers: 1
Engineering, 04.07.2019 18:20
Asimple rankine cycle uses water as the working fluid. the water enters the turbine at 10 mpa and 480c while the condenser operates at 6 kpa. if the turbine has an isentropic efficiency of 80 percent while the pump has an isentropic efficiency of 70 percent determine the thermal efficiency
Answers: 1
Engineering, 04.07.2019 19:10
Plan an experiment to measure the surface tension of a liquid similar to water. if necessary, review the ncfmf video surface tension for ideas. which method would be most suitable for use in an undergraduate laboratory? what experimental precision could be expected?
Answers: 2
Engineering, 06.07.2019 03:20
Figure out the odd statement about ceramics in the following (a) good insulators of heat and electricity (b) usually less desire than metals (c) ductile in nature (d) contains both metallic and nonmetallic elements
Answers: 3
Acooling tower for an engineering process takes in air at 20 °c dry bulb with a relative humidity of...
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