7. Consider a LiBr machine operating according to the following schematics: GENERATOR HIGH TEMPERATURE CONSTAT US GNATON LNES HEAT RESTRICTOR RESTRICTOR VAPOR O SPILLOVER EVAPORATOF EMPORSTO e R OME TEMEU T Tu OuT TEMPERATURE TEMPERR The system operates as follows: I. Refrigeration load = 500 tons II. Evaporator temperature, state 8 = 41.1 °F II. Absorber equilibrium temperature, state 3 = 107.2 °F Actual solution temperature, state 4 = 100.9 °F V. IV. Solution temperature, state 5 = 170.3 °F Solution temperature, state 1= 209.6 °F Solution temperature, state 2 = 128.1 °F %3D VI. VII. VIII. Refrigerant vapor temperature, state 6 = 200 °F Refrigerant temperature, state 7 = 100 °F Refrigerant spill-over rate, state 9 = 2.5% of state 8 XI. Concentrations of solution on a LIBr Duhring's phase diagram per above temperatures IX. X. XII. Chilled water temperature delta = AT = 54 – 44 = 10 °F XIII. XIV. Cooling water tower water flow rate = 1800 GPM Cooling water temperature entering = 85 °F XV. Absolute pressure of generator = 65.9 mm Hg Mass fraction of LiBr in the solution from the absorber, Y, = 0.595 XVI. XVII. Mass fraction of LiBr in the solution from the generator, Y; = 0.646 PEFRSERANT VAPO PRESURE

7. Consider a LiBr machine operating according to the following schematics: GENERATOR HIGH TEMPERATURE CONSTAT US GNATON LNES HEAT RESTRICTOR RESTRICTOR VAPOR O SPILLOVER EVAPORATOF EMPORSTO e R OME TEMEU T Tu OuT TEMPERATURE TEMPERR The system operates as follows: I. Refrigeration load = 500 tons II. Evaporator temperature, state 8 = 41.1 °F II. Absorber equilibrium temperature, state 3 = 107.2 °F Actual solution temperature, state 4 = 100.9 °F V. IV. Solution temperature, state 5 = 170.3 °F Solution temperature, state 1= 209.6 °F Solution temperature, state 2 = 128.1 °F %3D VI. VII. VIII. Refrigerant vapor temperature, state 6 = 200 °F Refrigerant temperature, state 7 = 100 °F Refrigerant spill-over rate, state 9 = 2.5% of state 8 XI. Concentrations of solution on a LIBr Duhring's phase diagram per above temperatures IX. X. XII. Chilled water temperature delta = AT = 54 – 44 = 10 °F XIII. XIV. Cooling water tower water flow rate = 1800 GPM Cooling water temperature entering = 85 °F XV. Absolute pressure of generator = 65.9 mm Hg Mass fraction of LiBr in the solution from the absorber, Y, = 0.595 XVI. XVII. Mass fraction of LiBr in the solution from the generator, Y; = 0.646 PEFRSERANT VAPO PRESURE

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

3 Condenser Expansion valve Compressor Evaporator Tin ļ Tout Fig.2: Heat pump system described in part (a) [2] 1. Construct a P-h and T-S plots showing a. All the processes b. The refrigeration effect (RE), heat of compression (HOC), and heat of rejection (HOR).
In an absorption refrigerator, the energy driving the process is sllPplied not as work, but as heat from a gas flame. (Such refrigerators commonly use propane as fuel, and are used in locations where electricity is unavailable. *) Let us define the following symbols, all taken to be positive by definition: Qf = heat input from flame Qe = heat extracted from inside refrigerator Qr = waste heat expelled to room Tf = temperature of flame Te temperature inside refrigerator Tr = room temperature Use the second law of thermodynamics to derive an upper limit on the COP, in terms of the temperatures Tf, Te, and Tr alone.
In an absorption refrigerator, the energy driving the process is sllPplied not as work, but as heat from a gas flame. (Such refrigerators commonly use propane as fuel, and are used in locations where electricity is unavailable. *) Let us define the following symbols, all taken to be positive by definition: Qf = heat input from flame Qe = heat extracted from inside refrigerator Qr = waste heat expelled to room Tf = temperature of flame Te temperature inside refrigerator Tr = room temperature Explain why the "coefficient of performance" (COP) for an absorption refrigerator should be defined as Qc/Qf.
7Which one is dynamic equipment in the following optionsreactorHeat exchangerStorage tankcompressor
Create a various assumptions that will be required in the design of the refrigetion and cryogenic plant for oxygen production which is based on realistic design assumption. Help me with thisformulation of the basic design for an air-conditioning system , just show the table that shows the parameters that were assumed and will be used in the computations.
QI: An R-134a refrigeration system produces 10 ton of refrigerating effect at the evaporating temperature -10°C and the condensing temperature of 40°C.The absolute pressure measured at the inlet and outlet of evaporator are 2.0 bar and 1.7 bar, respectively. Considering there are no superheat and sub cooling effects, calculate the following parameters with or without a drop of pressure in the evaporator: (i) Refrigerating effect (ii) Mass flow rate (iii) Power requirement in kW/TR (iv) COP
Qout W H.P. in SOURCE A Carnot heat pump is used to maintain the temperature inside a building at 20 °C. Significantly, the colder it gets outside, the more heat is lost through the walls and windows of the building. Assume that 95 kW of heat are lost for each degree difference between the outside and the inside temperature. That means that the colder it gets, the harder the heat pump will need to work. However, for safety reasons, the controller circuit for the heat pump limits its electrical power consumption to 205 kW. What's the coldest it can get outside before the heat pump can't maintain the building temperature adequately? °C in
CPE614: PROCESS INTEGRATION
20 stages of MSF-M with the following main parameters: intake: 1500 kg/s, 35,000 ppm, 20 C; blow down brine: 38 C, 69,000 ppm recycle brine about 79% of blow down brine steam supplied to brine heater: 2kg/s, 115 C The top brine temperature : 100 C performance ratio: 8.5 calculate all the characteristics of the system for first stage (x, tin, tout, Tin, Tout, Mdi, Mbi, TVi, Ai, Ab and the width and the length
Given problem: Tolits is working on a restaurant famous for its soup. His end of shift is 5:00 pm and needs to go home by that time to pick up his wife, Marites for their anniversary date. A customer made a reservation at 5:15 pm and wants his soup to be ready at that exact time. To ensure the quality of the soup, it should be served at a temperature which is exactly 86C. Tolits needs to prepare the soup before the end of his shift. Initially, as Tolits is preparing the soup, its temperature is 21∘C and placed on a pan heated at 149∘C. After 5 minutes, its temperature is 36∘C. The soup is done (cooked) once its temperature is 120∘C. Tolits found out that cooling it in a sink full of cold water, while the faucet is running with the water resulting to roughly constant temperature of 26∘C, could bring the temperature of the soup to 86C to be ready at 5:15 pm. How many minutes before the end of the shift of Tolits should he start cooking soup so that he is done before 5:00 pm and his…
2. For the following thermal-fluid systems: • Draw a picture or diagram • Define a system boundary or control volume boundary • Define as open or closed • Define as unsteady or steady state • Identify all mass, energy and heat flows State any assumptions about the interactions of the control volume with its surroundings 2a. Window A/C unit 2b. Geothermal energy plant 2c. A cooling tower for service water 2d. Household solar hot water system
The figure below shows a schematic of a dual-duct system For design purposes, suppose the zones shown are two of five zones, each having identical operating design conditions. The only exhaust is the main system exhaust. The zones are to held at 75 °F db / 50% RH when the total heat gain of each one is 200,000 BTUH and the sensible heat ratio is 0.6. Outside air (OA) is 95 °F db / 40% RH and the system is designed to operate with a mass flow rate of dry air that contains 25% OA & 75% RA (return air). The hot deck provides sensible heating only, and the air exits the heating coil at 105 °F db. The cold deck is designed such that air exits the cooling coil at 50 °F db / 90 % RH. Take the pressure to be one standard atmosphere. a. Accurately sketch and label the state points on an electronic psych chart (in particular make sure that the coil is represented as a collie on the TRANE pscyh chart software you can input a coil process) b. Compute the mass flow rate (lbma/hr) through…