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- IDENTIFY THE FF: AIRCONDITIONING AND VENTILATION 1. Acts as a master controller which keeps the system inautomatic operation2. Adds heat to a fluid3. Ratio of the actual partial pressure of the watervapor in a space to the saturation pressure of purewater at the same temperature.4. Also known as the heat content of air-vapormixture5. Temperature as read on an ordinary temperature6. Temperature where in water will start to condense7. Equipment that removes heat8. Is the process of treating air9. Their purpose is to create atmospheric conditionsfavorable to human health, comfort and efficiency.10. The system is to maintain indoor conditions forwinter seasonCondenser 30 c „Flash Chamber Pi Evaporator OC & 50 kW For a 2-stage ammonia compression system, determine: 1. Draw the PH diagram showing the condenser, evaporator, & compressor discharge temps, intercooler pressure, all enthalpies & compressor suction specific volumes, m/kg 2. Compute the intercooler pressure in Bars & equivalent Ti in °C 3. Compressor discharge temps T: & T4 4. Mass of refrigerants m:, ms & m: in kg/sec 5. Compressor power Wi, W & total W- in kW & HP 6. Compressors PD with equal volumetric efficiency 80%; m/s 7. Condenser capacity, kW 8. Using a single stage compression, calculate & compare the power of the compressor/s in kW & HPUnder the established parameters of the "refrigeration & cryogenic plant for oxygen poduction", elaborate the design outdoor condtion and design indoor condition? What do you think is the refrigerant type which best for cryogenic plant
- Pls. Answer thank you! The evaporative condenser of an ammonia refrigeration plant has a water flow rate of 100 kg/s and enters a natural draft cooling tower at 43 °C. The water is cooled to 30 °C by air entering at 27 oC db 24 °C wet bulb. The air leaves the tower as 90% RH and 32 °C db. Calculate the percent of make-up water needed the tower. At 27 °C db and 24 °C wb: h = 72.5 KJ/kg, w = 0.0178 At 90% RH and 32 °C db: h = 102 KJ/kg, w = 0.0275าา 3.15.) In air conditioning unit, 71,000 cfm at 80'F dry bulb 60% th and standard atmospheric pressure, enter the unit. The air leaves the wait at 57°F dry bulb and 90% relative humidity. Calculate the following a.) Cooling capacity of the air conditioning unit, in Btu/h 6.) rate of water removal from the unit. (.) sensible heat load on the conditioner, in Btu/h di) latent heat load on the conditioning in Blu/h e.) The dew point of the air leaving the conditioner.-Experiment- Air conditioning (Study of Air Conditioning Unit: Evaluation of heating and steam injection performance) 1.Compare the effect of steam injection on humidification process with that of hot water spraying? 2. Why does the process of steam injection used in applications which need to maintain air with high humidity? 3. What is the reason of having preheater before steam injector?
- Q3: Explain in detail the differences between vapor compression systems and evaporative cooling systems. This comparison should present advantages, disadvantages, potential applications, and suitability of each system to the climate conditions of Iraq.Given that the temperatures of the generator, condenser, absorber and evaporator of a VARS system are 94, 44, 25, and 10/°C), respectively, then COPmax?. If the how rate of the reftigerant is 0.09 [kg/s), then, the flow rates of the strong and weak solutions are?Homework-2 Compute the themal e fficiency of an ideal Ran kine cycle for which the steam leavea the boiler as Saturated Vapor at 30 bars. The turbine-outlet Conditions is Be1 bar. Determine the mass floo rate of the steam in kg/hr, net Power output of the cycle is 50000 Sehematic ond given data are: 1f the kw. The TI= 5002 P 3०bars %3D 9in (saturated) vapour 30 bars 2 PR =0-1 bar 4 Pa=30 bas o-1 bar +4 Tout 3 (Saturated liquid) Wp ( Simple Ideal Power cycle) (T.S. diagram e)
- define Mass flow rate of steam11. 30 tonnes of ice from and at 0°C is produced in a day of 24 hours by an ammonia refrigerator. The temperature range in the compressor is from 298 K to 258 K. The vapour is dry saturated at the end of compression and expansion valve is used. Assume a co-efficient of performance of 60% of the theoretical and calculate the power in kW required to drive the compressor. Latent heat of ice is 334.72 kJ/kg. Enthalpy Entropy of liquid Entropy of vapour kJ/kg Тетр. K kJ/ kg kJ/ kg K Liquid Vapour 298 100.04 1319.22 0.3473 4.4852 258 -54.56 1304.99 - 2.1338 5.0585 [Ans. 21.59 kW]QUESTION 1.What is the difference between the Water Tube Boiler and Fire Tube Boiler ? 2. Enumerate the function of a. Boiler Water Treatment Tank b. Cooling Tower 3. What is a Water Hammer ? O |I