"Is it possible to maintain a pressure of 10 kPa in a condenser cooled by incoming river water at 20 °C ?"
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Hello ... good evening Sir,
Permission, i have a question in my homework related
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Irfan
"Is it possible to maintain a pressure of 10 kPa in a condenser cooled by incoming river water at 20 °C ?"
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- 3.) An ammonia compressor operates at evaporator pressure of 316.02 kPa and a condenser pressure of 1557 kPa. A twin-cylinder compressor with bore to stroke ratio of 0.85 is to used at 1200 rpm. The actual volumetric efficiency is 92% and compression and mechanical efficiency is 78% and 80% respectively. For a cooling capacity of 25 TR, (a) the sketch the p-h diagram labeling the evaporating and condensing temperature and pressures (b) define the all properties of ammonia taken from saturation table. Determine (c) the quantity of cooling water in the condenser in kg/min if the increase in temperature is 8°C, (d) the bore and stroke expressed in cm and (e) the size of the driving motor in hp. Given: h2 = h at 1557 kPa and s2 = s1 1695 kJ/kgPls. Answer thank you! A cooling tower has an efficiency of 65%. Water enters the tower at 55°C. The wet bulb temperature of surrounding air is 27°C. What is the temperature of water leaving the tower?Heat Exchangers & Boilers are examples of heating units. true of fulse
- Hello Sir,Good Night.I have a question in my homework related thermodynamics lesson.The following below is my question. Please advice, thank you. "please explain about thermodynamics and heat transfer in refrigeration"What is the ideal mass flow rate for a refrigeration and cryogenic plant for oxygen production? Show solution if necessary and reference.I am confused about this answer. I somewhat understand the method, however they use the saturated liquid water table instead of the refrigerant table. And using the same method with saturated refrigerant yeilds very high temperatures and pressures that don't really make sense? Please help.
- 4. The condensing pressure for a Rankıne engine Is I Calculate the net work for 1 kg of steam and the thermal efficiency when the steam at the beginning of expansion is at 50 bar and (a) saturated, (b) 350°C, and (c) 640°C. Ans. (a) 627.2 kJ/kg, 26.4%; (b) 727.3 kJ/kg, 27.5%; (c) 1079.49 kJ/kg, 32.35% ot 2 15 MPàPls. answer thank you! A steam turbine of 6 MW capacity has a Willan's line equation of ms = 5.52 + 3.200 kg/hr. Determine the steam consumption at 63% load, kg/hr.(17 blanks) Calculate the efficiency of the Carnot Engine for ideal gas. Consider the figure below for a complete cycle of Carnot engine, where the cycle goes from ad->ab->bc->cd Carnot cycle Он TH Tc - V 02016 Pearson Education, Inc. processes: processes and segment ab & cd are the Where segments ad & bc are the and the volumes involved are Va, Vb, Vc, Vd, and the two temperatures TC and
- How many tons of refrigeration are required to produce 10 metric tons of ice per day at -10 °C from raw water at 22 °C if miscellaneous losses are 15% of the chilling and freezing load? 3.Q4// Answer A or B 201u, 4017 All What is the final part of the flue gas way of boiler furnace found to raise the temperature of water? Explain this?. Also, demonstrate briefly the water movement in power plant? B// What are the types of feedwater heaters in power plant, compare them? Explain the methods of cooling by these heaters and the ways of feeding.3. A water-tube boiler having a heating surface of 325.23 m² evaporates 6349.21 kg of water in an hour from a feed temperature of 66 °C. Boiler pressure is at 1.04 MPaa and the steam quality at the boiler outlet is 99 %. What percent of its rated Bo. Hp was the boiler developing?