arate preheater was p from its –2°F design
Q: 4- the solar powered absorption cooling cycle is the most popular system for solar cooling…
A: Absorption cooling involves dissolving a vapour in a liquid, pumping the solution to a higher…
Q: 01. Define range and approach of the cooling tower, and explain with drawing the evaporative…
A: Required :- To define the range and approach of the cooling tower To explain the evaporative…
Q: Define the critical temperature as Tc and critical pressure as the refrigerants R-134a and R-410a.…
A: We can define critical temperature as temperature over which a gas will not be able to liquify on…
Q: Choose from the options listed inside the parenthesis: Objective of Refrigeration: maintain a…
A: Objective of Refrigeration: maintain a cold temperature in a warm space by removing QH from it.
Q: Derive the Steady Flow Energy Equation from the first principles
A: Consider a steady flow device as shown below where one stream of fluid enters and other leaves the…
Q: Water cooled condenser is used for large capacity plant. O True False
A: Water cooled condensers are basically Heat exchangers which are used to remove heat from working…
Q: The design boiling point for most evaporator coils in residential air-conditioning is __________ °F.
A: Evaporator in the refrigeration process removes heat from the area which has to be cooled. The…
Q: The typical temperature difference between the enteringair and the boiling refrigerant on a standard…
A: The temperature split, sometimes referred to as the approach temperature, is the difference between…
Q: Steam or water substance is used in a Carnot refrigeration cycle. The evaporator tempera 300 K and…
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Q: an ammonia system supplies chilled brine for a 10 ton load at 0F, a 2 ton load at 20F, and 4 ton…
A:
Q: 2) A deep freezer operates between the temperature limits -20°C and 35°C and has a refrigerating…
A: Given that: Refrigerant is R12. Cooling capacity = 0.8 TR = 3.5 kW. Evaporator temperature = -20 oC.…
Q: ate in the following refrigeration cycle is:
A:
Q: 1. Capacity of the cooling coil in tones of refrigeration; 2. The wet bulb temperature was leaving…
A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…
Q: 6 Cond 6 Pc Wk Pi 3 7 3. Pe Evap Wk
A: Two stage compression with dry type shell coil cooler concept :- In case of refrigerant plant is…
Q: State the cold air standard assumptions.
A:
Q: Most of the heat in waste heat boiler is absorbed by steam at Select one O a economizer Ob.…
A: Option d is correct
Q: er. Data on the individual compone 30,600 W/K 26,500 W/K evaрorator condenser rofrigerntion canngity…
A: data provided D =240 mm k =0.6 w/m-kqgv= 24000 w/m3 it is isolated by Dr =440 mm k =6 w/m-kn =25…
Q: 3 Condenser Expansion valve Compressor Evaporator Tin ļ Tout Fig.2: Heat pump system described in…
A: Let us discuss about P-h and T-s diagram of heat pump.
Q: General types of Expansion device and Condenser used in a refrigeration system ?
A: General types of expansion devices used in refrigerator system:- 1.Thermal expansion valves.…
Q: sat.liquid 50C Condenser Compressor stage 2 Valve R-134a 2 sat. vapor -20C Flash 3 Moing chamber…
A: Given Data and Initial Calculation :-
Q: In all liquid refrigerant lines, the pressure at the bottom of a vertical rise isgreater than the…
A: Given Data : h=7.5 ft h=90 in Pressure at every point in the vertical pipe (P)=0.5144 lbin2
Q: If the air leaving the cooling coil were to be 55°F drybulband 53°F wet-bulb, what would the total…
A: Given data DBT=55°FWBT=53°F Here, DBT is the dry bulb temperature and WBT is the we bulb…
Q: A vacuum refrigeration system consists of a large insulated flash chamber kept at a low pressure by…
A: A thermodynamic device which is used to remove the heat from the hot refrigerant vapour untill it…
Q: What would be the necessary bore and stroke of a single acting four- cylinder, 350 rpm ammonia…
A: Sir question (a) is solved. please post a question (b) to get a solution.
Q: A manufacturing company is intending to use its water cooled condenser for its proposed cold storage…
A: Given, Twaterin=30°C Twaterout=40°C Tcondensation=35°C We know, Energy Balance equation…
Q: What is chilled liquid and condenser water?
A: Explain chilled liquid. Chilled liquids are those liquids that are used to cool and dehumidify the…
Q: Problem 3 For the system to the right, why would we want to heat the hot water heater using the HVAC…
A: Heating, ventilation, and air conditioning (HVAC) are the three components of HVAC. Residential…
Q: There are removed 3.06 m^3 /s of vapor from the water evaporator of a vacuum refrigeration system:…
A:
Q: what are the different type of Boilers?
A: boilers are the closed vessel used to convert the water into high pressure steam when we heated the…
Q: efficiency for ammonia compressor designed with 4 % clearance and operating between condenser and…
A: Solution is attached below
Q: 4. Calculate the power required to compress 18 kg/min of NH, from saturated vapour at 1.4 bar to…
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Q: Task 2 Select a reasonable pressure for the evaporator and condenser in the following scenarios: A)…
A: Soon:- A evaporator takes heat from refrigerated space which is maintaine at -10 °c , for proper…
Q: ccupants and infiltration, but excluding intentional ventila ost nearly the room sensible heat…
A: Answer is given below
Q: PROBLEM : IN A CERTAIN REFGN. SYS. FOR LOW TEMP. APPLICATION, A TWO - STAGE OPERATION IS DESIRABLE…
A: As per company policy, we are restricted to solve three sub-part of one question at a time. Please…
Q: 1- what's is the main benefit for the cooling tower packages.
A: The cooling tower packages, located between the water distribution level and the cooling water sump,…
Q: Q3. Explain refrigeration cycle with example
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Q: A refrigerant 22 , four-cylinder, 85 mm x 70 mm compressor operating at 28 rev/sec, condensing temp…
A: Given: To find: a) volumetric efficiency b) compression efficiency
Q: Most of the heat in waste heat boiler is absorbed by steam a Select one O a economizer Ob.…
A: Given: Waste heat boiler: It works in the principle of economizers.
Q: ccount will be recorded when you upload files nd submit this form. Your email is not part of our…
A:
Q: 1- Why use waste heat in air conditioning system? 2- Why during winter season the temperature of…
A: Given Air condition To find Importance of waste heat in air conditioning system Temperature of…
Q: Figure 1.3. Shows a preheater for a diesel engine that allows the engine to get hot air to…
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Q: Room sat.liquid 50C Condenser Compressor stage 2 Valve R-134a 2 sat. vapor -200 Moing chamber Flash…
A: Given Data and Initial Calculations :-
Q: A refrigerated compartment is maintained at a temperature of -5°C. Heat from the surroundings, at…
A: Drawing the refrigeration Carnot cycle as shown below –
Q: Space storage food requires system cooling capacity 15 ton refrigeration operates in the the…
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Q: er equipped c heating e lly contains
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Q: The rated boiler horsepower of a fire tube boiler is 500 Hp. What is the heating surface area of the…
A:
Q: (a) Differentiate between open feedwater heaters and closed feedwater heaters.
A: The difference between open feedwater heaters and closed feedwater.
Q: Space storage food requires system cooling capacity 10 ton refrigeration operates in the evaporator…
A: Given Data: The cooling capacity of the system is, Q1=10 ton of refrigeration=10 ton of…
Q: Problem 6 The The refrigeration system using R-22 as refrigerant consists of 3 evaporators of…
A: INTRODUCTION: Refrigeration is the technique of maintaining a low temperature in comparison to the…
Q: Steam is supplied to a two-stage turbine at 48 bar and 400 °C. It expands in the first turbine until…
A:
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- 13.1 Estimate how much collector area and storage capacity would be required for an activesolar hot-water system designed to supply the total needs for two four-person families,one living in Manchester, New Hampshire, where the latitude is 44+ ° N, and the other inAlbuquerque, New Mexico, at 35+ ° N. The heat capacity of water is about 4,200 J/kg ° C,and the hot-water supply temperature in both houses is 75 ° C (140 ° F). State and justifyall additional assumptions made20 marks)For the Heat Pump System (HPS), describe and explain: the structure, the functionality of themain components, the controlling devices, and the contribution of the HPS on energy saving.Design, analyze, and optimize a triple pressure heat recovery steam generator (HRSG) for a large advanced combined cycle power plant whose net steam power output is 150 MW. The gas turbine exhaust gases can be treated as ideal gases and the outlet temperature and mass flow rate are 550°C and 500 kg/s respectively. Water enters a low-pressure economizer for this HRSG at P = 200 kPa and T = 40°C. Make reasonable assumptions as required.
- A performance test of an ice plant gave the following data: Capacity: 20 tons of ice/day Refrigerant: Ammonia Condenser pressure: 1391.5 kPa Evaporator pressure: 208.26 kPa Raw water temperature: 32OC Harvest temperature: -7OC Block of ice: 300 lb/block The compressor is twin-cylinder, single acting, D/L = 1.25, 450 rpm, mechanical efficiency is 80%. Additional heat load due to infiltration and conduction is 20%. Determine: a) Number of cans needed b) Product cooling load c) Refrigerating capacity in tons of refrigeration d) Amount of refrigerant flow e) Size of motor to drive the compressor f) Bore diameter and length of strokeA manufacturer conducted an experiment for an evaporator capacity 500 kW cooling and designed for high COP of 2 when using lithium bromide plus water in an absorption refrigeration system. The evaporator operates 20 C, condenser 40 C & absorber 45 C supplying 1.4 kg/s of water plus lithium bromide solution to the generator. For a condenser size of 650 kW, determine:Ethalphy of the refrigerant leaving the Evaporator in kJ/kgAnswer in one decimal place(s)Problem 4.9. Estimate the maximum possible COP of a household air conditioner. use any reasonable values for the reservior temperatures
- A boiler plant incorporates and economizer and air preheater and generates steam at 40 bar and 300oC with fuel heating value of 33000 kg/hr. The temperature of feedwater is raised from 40oC to 125oC in the economizer and the flue gases are cooled at the same time from 395oC to 225oC. The flue gas then enters the air preheater at a pressure of 1.2 bar and 16oC with a pressure rise across the fan of 18 mm of water. The power input to the fan is 5 kW and it has mechanical efficiency of 78%. Neglecting heat losses and assuming the flue gases as ideal gas with constant specific heat of Cp = 1.01 kJ/kg-K, calculate: (a) the mass flow rate of the air, (b) the temperature of flue gases leaving the plant, (c) the mass flow rate of the steam, and (d) the efficiency of the boiler.A meeting hall is to be maintained at 25°C, 18Cwb. The space heat gains dropped to 20kW of which 16kW is sensible cooing load. Outdoor conditions are 35°C, and 50% RH. Assume that 10% by weight of the supply air to the room is outdoor air. The recirculated air passed through a cooling equipment and then mixed with the outdoor, and the conditioned air is supplied to the room at temperature not lowered than 18°C. Determine a) amount of air supplied to the space b) TOR required of the cooling equipment c) average cooling coil surface temperature. A meeting hall is to be maintained at 25°C, 18Cwb. The space has a cooling load of 40kW of which 32kW is sensible cooling load. The temperature of the supply air to the space must not be lowered than 18°C. Outdoor conditions are 35°C, 50% RH. Assume that 75% by weight of the supply air from the room is recirculate but a portion of these bypassed the cooling equipment. Determine a) amount of air supplied to the space b) TOR required of the cooling equipment c) average cooling coil surface temperature.
- A surface condenser serving a 50,000-kW steam turbo-generator unit receives exhaust steam at the rate of 196,000 kg/hr. Vacuum in condenser is 702 mmHg. Sea water SG=1.03 and Cp=0.93 Btu/lb-F is used for cooling enters at 29.5C and leaves at 37.5C. From the steam condenser design, manufacturer consider 950 Btu/lb of steam condensed as heat given up cooling water. Calculate the required quantity of cooling water in m3/s.A refrigerator with tetrafluoroethane as refrigerant operates with an evaporation temperature of −25°C and a condensation temperature of 26°C. Saturated liquid refrigerant from the condenser flows through an expansion valve into the evaporator, from which it emerges as saturated vapor. (a) For a cooling rate of 5 kJ·s−1, what is the circulation rate of the refrigerant? (b) By how much would the circulation rate be reduced if the throttle valve were replaced by a turbine in which the refrigerant expands isentropically?A geothermal heat pump with a coefficient of performance of 1.3 supplies a building with 48000 BTU/hr of heat. Assuming a $0.20/kWh electricity rate. Provide responses to the following questions about this system: a. How much would it cost per month to supply heat at a rate of 48000 BTU/hr using a basic electrical resistance heater? b. In that month, how much heat is extracted from the earth by the heat pump, in kWh? c. What is the monthly savings associated with using this heat pump vs a basic electrical resistive heater?