A fuel oil of 21 deg API (density = 934 kg/m³) is to be heated in a heater and has the following properties: Quantity of oil to be heated 3000L/hr Temp. of oil entering tubes 220 Temp. of oil leaving tubes 97C Heating fluid, steam enters at 103C and leaves as condensate at 83C. Assume specific heat of oil to be 2.093 kJ/kg-K. Take the over- all coefficient of heat transfer is as 140 W/m²-C. What is the required heat transfer area (m^2)?
Q: A four-effect evaporator is being considered for concentrating a fruit juice that has no appreciable…
A: according to the given information, we have the first stage pressure is 143.27 Kpa the temperature…
Q: The food storage room requires a cooling system with a capacity of 15 tons of refrigeration that…
A:
Q: The food storage room requires a cooling system with a capacity of 15 tons of refrigeration that…
A:
Q: In a 112 TR R-22 flooded chiller, the water inlet temperature is 11.67°C. The mass flow rate of…
A: Refrigeration capacity is the quantity of heat removed from an object to be cooled per unit time by…
Q: A jacketted-agitated vessel, fitted with a turbine agitator, is used for heating a water stream from…
A: The given equation for the outside heat transfer heat coefficient is not clear. Assuming the…
Q: A four-effect evaporator is being considered for concentrating a fruit juice that has no appreciable…
A:
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration that…
A:
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration that…
A: Write the given values using suitable variables. Here RE signifies refrigeration effect, T4…
Q: The food storage room requires storage of a cooling system with a capacity of 10 tons of…
A:
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration that…
A: The P-h diagram is as:
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration that…
A:
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration that…
A:
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration which…
A:
Q: Steam is to be condensed on the shell side of a 1-shell-pass and 8-tube-passes condenser, with 50…
A: Write the given data
Q: The food storage room requires a cooling system with a capacity of 15 tons of refrigeration that…
A: Write the given dat with suitable variables. RE=15 ton=52.75 kJ/s3.5167 kJ/s1 tonT1=-25.2 °CT2=39.2…
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration that…
A: Given data:
Q: A food storage chamber requires a refrigeration system of 10-ton capacity operating at an evaporator…
A: Given, Evaporator temperature, Te=-9.2°CCondenser temperature, Tc=30.9°CReferigeration capacity,…
Q: The food storage room requires storage of a cooling system with a capacity of 15 tons of…
A:
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration that…
A: Given Tmin = -9.2 ° C = 263.8 K Tmax = 28.6 ° C = 301.6 K
Q: The food storage room requires a cooling system with a capacity of 15 tons of refrigeration that…
A: Given data as per the question Refrigeration capacity = 15 tons evaporator temperature = -17.5 ° C…
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration that…
A: As given that evaporator temperature TL= -17.8 C = 255.2 K, The condenser temperature TH= 32.1 C=…
Q: Food storage rooms require a refrigeration system with a capacity of 10 tons of refrigeration…
A:
Q: In a 112 TR R-22 flooded chiller, the water inlet temperature is 11.67°C. The mass flow rate of…
A: Given: TE = 11.87°C OD = 1.27cm , ID = 1.12cm Cp = 4.2kJ/kg-°C TR = 2.8°C CpR22 = 1.177 kJ/kg.K…
Q: A two pass steam surface condenser is to be designed to condense 10000 kg/hr of steam having an…
A: Given data, Mass flow rate of the steam, m˙steam=10000 kg/hr Specific enthalpy of the steam, hsteam…
Q: The condenser of a room air conditioner is designed to reject heat at a rate of 15,000 kJ/h from…
A: Consider the diagram shown below for the heat exchanger, Given data:
Q: What is the advantage of using heat exchanger in plant designing compared to other heat transfer…
A: Introduction: Heat exchangers are devices that transmit thermal energy between two or more fluids.…
Q: 750 kg of dry saturated steam at a pressure of 160 N/cm2 is generated in a boiler per hour. The…
A: Given mass of the steam ms=750kgpressure in boiler P=160N/cm2=16barheat loss at the exit of boiler…
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration which…
A:
Q: The food storage room requires a cooling system with a capacity of 15 tons of refrigeration that…
A:
Q: Design a hydrocooling unit that can cool fruits and vegetables from 30 to 5°C at a rate of 20,000…
A: Given data, The water velocity through the channel is – Now,
Q: The food storage room requires a cooling system with a capacity of 15 tons of refrigeration that…
A:
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration that…
A: From steam table of R-134a:- Specific enthalpy at compressor inlet, h1=hgat…
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration that…
A:
Q: Design a tubular feed-water heater which need to heat the 1.5 kg/s of water from 20°C to 60°C.…
A: The heat exchanger is a device used to transfer heat from one fluid to another fluid. For heat…
Q: Ethylene glycol is heated from 25°C to 40°C at a rate of 2.5 kg/s in a horizontal copper tube (k =…
A: In this problem, our prime objective is to calculate the overall heat transfer coefficient. If we…
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration that…
A:
Q: The facility has several 7000 Btu/h air conditioners in storage that can be installed to meet the…
A: Heat dissipated by seven peoples, Q˙people=7·100=700 W Now change the unites of heat dissipated from…
Q: A jacketted-agitated vessel, fitted with a turbine agitator, is used for heating a water stream from…
A: Write the properties of water at 54°C. Write the expression of the film temperature. Write the…
Q: The food storage room requires a cooling system with a capacity of 15 tons and refrigeration that…
A:
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration which…
A:
Q: Engine oil (C, =2100 J/kg · °C) is to be heated from 20°C to 60°C at a rate of 0.3 kg/s in a…
A:
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration that…
A:
Q: A refrigeration system uses a water-cooled condenser for rejecting the waste heat. The system…
A: Given data The heat absorbed by the system is qL=21000 Btuh The rate of water flow is m˙=1.45…
Q: 3. The food storage room requires a cooling system with a capacity of 15 tons of refrigeration that…
A:
Q: The food storage room requires a cooling system with a capacity of 10 tons of refrigeration that…
A: (a) Write the capacity of the cooling system. QR=10 TR=10 TR×3.5 kW1 TR=35 kW Draw the T-s…
Q: Steam is to be condensed on the shell side of a 1-shellpass and 8-tube-passes condenser, with 50…
A:
Q: The change of enthalpy in the condenser is 1500 KJ/kg. The temperature change of water is 16°C and…
A: given change of the enthalpy in the condenser ∆H=1500kJ/kgtemperature change of water…
Q: Engine oil (C, =2100 J/kg · °C) is to be heated from 20°C to 60°C at a rate of 0.3 kg/s in a…
A:
Q: The food storage room requires a cooling system with a capacity of 15 tons of refrigeration that…
A:
Q: The food storage room requires a cooling system with a capacity of 15 tons of refrigeration that…
A:
Step by step
Solved in 2 steps with 2 images
- 8.2 From its definition and from the property values in Appendix 2, Table 13, calculate the coefficient of thermal expansion, , for saturated water at 403 K. Then compare your results with the value in the table.AH of vaporization of water is 439.2 cal/g at the normal boing point. Since virus can survive at 404.39 K by forming spores. Most virus spores die at 851.9 K. Hence, autoclaves used to sterilize medical and laboratory instruments are pressurized to raise the boiling point of water to 851.9 K. Find out at what InP (torr) does water boil at 851.9 K? O a. 8460.435 O b. 940.048 c. 1880.097 O d. 2.474Question 3 This question requires the use of the steam property tables (Rogers and Mayhew) uploaded on QM+ exam section. All properties should be evaluated at the temperature of the steam. Saturated, pure steam at a temperature of 170 °C condenses on the outer surface of a vertical tube of outer diameter 2 cm and length 1.5 m. The tube surface is maintained at a uniform temperature of 150 °C. Calculate: a) the local film condensation heat-transfer coefficient at the bottom of the tube. b) the average condensation heat-transfer coefficient over the entire length of the tube. c) the total condensation rate at the tube surface.
- in a surface condenser the pressure of steam is Q12 bar. The rote of cooling water flow is 40 kgAg of steam condensed Condensate teaves at 44°C and dhe rise in termperature of circuiating water is 13°C Determine the dryness fraction of steam entering the condenser.An evaporator is concentrating F kg/hr at 311K of a 20 wt % solution of NaOH to 50%. The saturated steam used for heating is at 399.3 K. The pressure in the vapor space of the evaporator is 13.3 kPa abs. The overall coefficient is 1420 W/. K and the area is 86.4 square meters. Calculate the feed rate F of the evaporator.DS Community Downl... Haritalar EOkuma list iş İÇİN Giriş yap 口 口山凸9 İNGİLİZCE An air-cooled condenser is used to condense isobutane in a dual geothermal power plant. Isobutane, air entering at 22 oC with a flow of 18 kg/s (cp = 1.0 kJ / kg.K)is condensed at 85 oC. The total heat transfer coefficient for this heat exchanger is 2400 W/m2.K and surface area is 2.6 m2. What is the output temperature of the air? Çeviri yap: Google Bing
- Heat-Transfer Coefficient in Single-Effect Evaporator. A feed of 4535 kg/h of a 2.0 wt % salt solution at 311 K enters continuously a single-effect evaporator and is being concentrated to 3.0%. The evaporation is at atmospheric pressure and the area of the evaporator is 69.7 m². Saturated steam at 383.2 K is supplied for heating. Since the solution is dilute, it can be assumed to have the same boiling point as water. The heat capacity of the feed can be taken as cp = 4.10 kJ/kg · K. Calculate the amounts of vapor and liquid product and the overall heat-transfer coefficient U. 8.4-1.Design a hydrocooling unit to cool down fruits and vegetables from 30 °C to 5 °C in 20 minutes at a rate of 20,000 kg of fruit or vegetables/h. The design must fulfill the following requirements: The unit will be an immersion flooded system. It must be able to cool down and transport the products in chill water. The tank has the following dimensions approximate. three meters wide and up to 90 cm hight. The water will circulate and be cooled through the evaporation section of a refrigeration system. The refrigerant temperature inside the coils will be -2 °C, and the water temperature must not drop below 1 °C and must not exceed 6 °C. Assuming reasonable values for the average density, specific heat, and porosity of the product (the fraction of the volume of air in a box), recommend reasonable values for: The speed of the water through the canal, the capacity of the cooling system. the compressor power.Question 3 This question requires the use of the steam property tables (Rogers and Mayhew) uploaded on QM+ exam section. All properties should be evaluated at the temperature of the steam. Saturated, pure steam at a temperature of 170 °C condenses on the outer surface of a vertical tube of outer diameter 2 cm and length 1.5 m. The tube surface is maintained at a uniform temperature of 150 °C. Calculate: the local film condensation heat-transfer coefficient at the bottom of the tube. a)
- AS& Heat Transfer in Steam Heater Water at an average of 70°F is fiowing in a 2-in. steel pipe, schedule 40. Steam at 220°F is condensing on the outside of the pipe. The con vective coefficient for the water inside the pipe is A = 500 btu/h ft2.°F and the con- densing steam cocfficient on the outside is h = 1500 (a) Calculate the heat loss per unit length of1 ft of pipe using resistances. (b) Repcat, using the overall based on the inside area Ap (c) Repeat, using U 13.2- Ans. (a)q= 26 710 btu/h (7.828 kW). (b) Uj = 329.1 btu/h-ft2."F (1869 W/m2. K), (c) U.= 286.4 btu/h ft2.°F (1626 W/m2. K)A four-effect evaporator is being considered for concentratinga fruit juice that has no appreciable boiling-point elevation.Steam is available at 143.27 kPa, and the boiling point of the product in the fourth effect is 45°C. The overall heat-transfer coeffi cients are 3000 W/(m 2 °C) in the fi rst effect, 2500W/(m2 °C) in the second effect, 2100W/(m2°C) in thethird effect, and 1800W/(m2°C) in the fourth effect. Calculatethe boiling-point temperatures of the product in the fi rst,second, and third effects. Assume the heating areas in all theeffects are equal to 50m2 each. The mass fl ow rate of steam tothe fi rst effect is 2400kg/h, the feed rate to the fi rst effect of 5%total solids fl uid is 15,000kg/h, the concentrated product fromthe fi rst effect leaves at 6.25% total solids, and the concentrationof product leaving the second effect is 8.82% total solids. Make it in the form of an example solution spreadsheet .....A condenser of a steam power plant indicates a vacuum of 65 cm of Hg when barometer reads 75 cm Hg. The condensing steam has a temperature of 45 o C and a dryness fraction 0.9. Calculate: (i) the amount of air to be handled by the pump per min. if the rate of steam condensation is 2000 kg/hr. (ii) vacuum efficiency of the condenser.