Learn Refrigeration And Air Conditioning MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Abstract: Conventionally, food transport refrigeration is driven by the vehicle’s engine itself or by a diesel genset; the refrigeration cycle almost universally used is the vapour compression system (VCS), with … For example, a common compression ratio on an R22 system might look like-240 PSIG Discharge + 14.7 PSIA = 254.7 75 PSIG Suction + 14.7 = 89.7 PSIA 254.7 PSIA Discharge ÷ 89.7 PSIA Suction = 2.84:1 Compression Ratio What is the main reason behind subcooling of liquid refrigerant at the condenser outlet in vapour compression refrigeration system? With the help of 4BEngineers, students can avail online coaching through video lecture at an unimaginably affordable cost, access the coaching content from renowned teaching experts, and be one on one with their personal favorite coach. However, system chemistry and heat exchangers are complex, refrigerant compositions are sensitive, and compressor displace-ment is large. The water flow rate is lower than the desired value. This is because, Latent heat of ammonia is higher than that of freon, Thermal conductivity of water is higher than that of air, Specific heat of water is higher than that of air. b) throttle valves Which device is used for the expansion of refrigerant in vapour compression refrigeration cycle? Evaporation. View Answer. Which expansion device is capable of regulating the flow of refrigerant according to the load on the evaporator? 8 1 1 8. a. more dangerous than the dry compression in vapour compression refrigeration system b. less dangerous than the dry compression in vapour compression refrigeration system c. equally preferable in vapour compression refrigeration system d. cannot say View Answer / Hide Answer Name, multistage, refers to any of the refrigeration system with more than one stage of compression. Superheated vapour. c. either throttling valve or capillary tube, ANSWER: c. either throttling valve or capillary tube, a. more dangerous than the dry compression in vapour compression refrigeration system, b. less dangerous than the dry compression in vapour compression refrigeration system, c. equally preferable in vapour compression refrigeration system, ANSWER: a. more dangerous than the dry compression in vapour compression refrigeration system. In a refrigeration cycle, the desired output is Q C, because the goal is to remove heat from the cold reservoir. Compressor manufacturers can tell you what the maximum compression ratio is for a specific compressor, but an accepted rule is no more than a 10:1 compression ratio. 8. So for same heat transfer temperature difference will be high, The power required for the compressor in kw is, Explanation : Since power is required for compressor in refrigeration is in compression cycle (1-2), Hence, Power required = m (h2 -h1) = mo (h2 -hf). Question 49. Reduces work done per kg of air C. Reduces cost of compressor D. Gives more uniform torque E. All of the above 2. Compression horsepower 42.41 Btu/min - hp Ne t refrigerating Effe ct, Btu/lb He at of comp ression, Bt u/lb 200 4 2.41 = 4 .716 X X X X X X X X R eference: F luo rocarbon R efrigerants H andbook E nthalpy (Btu /lb) R-134a e r u s s e r P (a i p) 4 5. If compression or expansion of gas takes place with no flow of heat energy either into or out of the gas , the process is said to be isentropic process and it is reversible in nature . What is the use of multistage compression in vapour compression refrigeration system? Skip to content. 22 Full PDFs related to this paper. A refrigerant should have (a) Tow specific heat of liquid (b) high boiling point (c) high latent heat of vaporisation (d) higher critical temperature (e) low specific volume of vapour. Expansion. Q15. Freon 12 is a compound consisting of stoms of: A. Of the larger superheat horn of ammonia compression cycle. Download. b. to reduce the mass of vapour formed during expansion process, c. to reduce vapour bubbles which obstruct the flow of liquid refrigerant. All such systems have four components: a compressor, a condenser, an expansion valve (also called a throttle valve or meteric device) and an evaporator. For entropy s = 0.95 the enthalpy h = 276.45 kJ /kg, Large latent heat of vaporisation and low operating pressures, Small latent heat of vaporisation and high operating pressures, Large latent heat of vaporisation and large operating pressures, Small latent heat of vaporisation and low operating pressures. 1. Throttling process can be done by capillary tube.Working fluid is flow through capillary tube. c) large installations use air-cooled condenser 0. The choice … (D) all of the above, Q25.The process of undercooling is generally brought about by Theory of Machines. 4. View Answer. Using SCORG on refrigeration and air-conditioning compression alone and reducing their energy consumption by up to 6%, can lead to a potential saving of at least 1.5% of US total energy consumption. Match List-I (Refrigerant) with List-II (Designation) and select the correct answer using the codes given below the lists: Theoretical vapour compression refrigeration cycle is represented on a T-s diagram as. c) (p1*p2)/(p1+p2) Q1. The pumping work in the former is negligible since specific volume of strong liquid solution is small. A short summary of this paper. Take the Quiz and improve your overall General Knowledge. Discuss the use of flash tank for intercooling only (Section 12.6) At the end of the lesson, the student should be able to: 1. Edit. b) high pressure ratio with dry compression gives high compressor discharge temperature Mechanical Engineering 86-89 Lesson 20 Working and mathematical analysis of above systems 90-92 Lesson 21 Numericals on multi-evaporation and compression systems 93-97 . Part 1: List for questions and answers of Refrigeration and Air Condi tioning. The required input is the work input, W ref. 2. For premium access Login / Register. Selection of a refrigerant for a vapour – compression system depends on which among the following? The other is the halide torch method used with fluorocarbons. Answer: b Under the MYCOM brand, Mayekawa’s compressors are used worldwide in industrial refrigeration and freezing, heat pumps, and gas markets. It can be employed over a large range of temperatures. For an ideal vapor compression refrigeration system operating with R-22 at an evaporator temperature of -10°C and condensing at 30°C, find the following: the compressor suction and discharge pressures, enthalpies, and specific volumes; the condenser discharge pressure and enthalpy; the refrigeration COP; and the refrigerant mass flow rate and power requirement for a 10-ton refrigeration unit. Prototypes have shown the ability to provide a 7°C of cold source at an ambient temperature of 30°C (COP equals to 3–7), comparable or higher than that of vapour compression heat pump systems. a) it can be air-cooled or water-cooled Module 6 Vapour Absorption Refrigeration System Lesson 22 … While a 65° return vapor temperature may be satisfactory for high-temperature applications and, perhaps, some medium-temperature … a. to increase volumetric efficiency of of compressor, b. to allow the system to operate between higher pressures, c. to reduce risk of damage to refrigerant. 5.8. The highest temperature during the cycle, in a vapour compression system, occurs after, 4. 2. Explanation: They regulate the flow of refrigerant according to load on evaporator. Refrigeration Cycle In a vapor compression refrigeration system a gas (refrigerant) is alternatively compressed and expanded and goes from the liquid to the vapor state. In a vapour compression plant, if certain temperature differences are to be maintained in the evaporator and condenser in order to obtain the necessary heat transfer, then the evaporator saturation temperature must be: Higher than the derived cold-region temperature and the condenser saturation temperature must be lower than the available cooling water temperature by sufficient amounts, Lower than the derived cold-region temperature and the condenser saturation temperature must be lower than the available cooling water temperature by sufficient amounts, Lower than the derived cold-region temperature and the condenser saturation temperature must be higher than the available cooling water temperature by sufficient amounts, Higher than the derived cold-region temperature and the condenser saturation temperature must be higher than the available cooling water temperature by sufficient amounts. Gear Trains and Flywheels. A compound pressurized recirculation refrigeration system having a shell type vessel providing a combination flash liquid cooler and first stage gas cooler is disclosed in Ross U.S. Pat. The color of the flame of halide torch, in a case of leakage of Freon refrigerant, will change to: A mixture of refrigerants without phase separation. which will improve your skill. Pick up the wrong statement. The most common is the soap-bubble method. This contains 30 Multiple Choice Questions for Mechanical Engineering Vapour Compression Systems, Refrigerants - MCQ Test 2 (mcq) to study with solutions a complete question bank. Answer: d Only liquid is then passed to evaporator and the vapors will be passed to the compressor directly. It improves the volumetric efficiency for the given pressure ratio.. A flash chamber is a device which separates liquid from vapors. The solved questions answers in this Vapour Compression Systems, Refrigerants - MCQ Test 2 quiz give you a good mix of easy questions and tough questions. The correct sequence of vapour compression (VC), vapour absorption (VA) and steam ejector (SE) refrigeration cycles in increasing order of the COP is: The correct sequence of VC, VA and SE in increasing order of COP is VA, SE and VC, the Value being of the order of 0.3 to 0.4 0.5 to 0.8 and 4 to 5 respectively. So, COP R = Q C over W ref. Heating, ventilation, and air conditioning (HVAC) is the technology of indoor and vehicular environmental comfort. Glomerula pressure in human kidney is: Lesson 18 Dual compression and Individual compressors systems, compound compression. Q17. 1. d) none of the mentioned Since the rapid increasing demand on cooling, green refrigeration technology is urgent. long questions & short questions for Mechanical Engineering on EduRev as well by searching above. Mechanical Engineering Handbook . Since for isentropic compression process. Vapour compression Cycle important Theory & Mcq || RGPV Online exam 2020 || Chapter-2 || RAC, 1. As can be seen, the liquid leaving the condenser is cooled by passing through the throttle valve, where the pressure drops, resulting in partial vaporisation of the refrigerant and a significant reduction in temperature. E). Ans: b 2. This, between the condenser and evaporator is known as, Chapter-3 Vapour Absorption Refrigeration system (Coming Soon ). a. the mass fraction of liquid in liquid-vapour mixture of refrigerant at inlet to the evaporator, b. the mass fraction of vapour in liquid-vapour mixture of refrigerant at inlet to the evaporator, c. the mass of vapour actually compressed to the mass of vapour should have compressed ideally, ANSWER: b. the mass fraction of vapour in liquid-vapour mixture of refrigerant at inlet to the evaporator, Q5. 1 1 0 8. * Metalfrio Solutions SA * MF Refrigeration Limited * Panasonic Corporation * Perlick Corporation * Powers Equipment Company, Inc. * QBD Modular Systems Inc. * Skope Industries Ltd. * … Azeotrope is a mixture of refrigerants without phase separation. Explanation: These are the two types of expansion devices. All the statements about effect of moisture on refrigerant are correct. hence it is preferred over icentropic expansion. c) the refrigerant is damaged The work done per kg of refrigerant is reduced in, with intercooler as compared to single stage, is a device which separates liquid from vapors. As fluid flow through capillary its velocity increase as per continuity eqation (AV=const).hence conversion of pressure energy into kinetic energy takes place. Multiple Choice Questions (MCQ) and Answers on Chemical Engineering Thermodynamics Question 1 : The co-efficient of performance (COP) of a refrigerating system, which is its index of performance, is defined as the ratio of useful refrigeration to the net work. Answer: b Download Full PDF Package. 2.The evaporator absorbs heat from the surroundings to be cooled. A – 3- stage compound compression system merely adds another stage, and another intercooler, to a 2- stage compound system. Refrigeration and air conditioning mcq questions converted 1. 50 Hz compressor has RPM 3000. The units of _____ and COP are the same. There are two main types; cascade and compound. IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. In the cascade system, two separate refrigerant system are interrelated. Both A and R are individually true and R is the correct explanation of A, Both A and R are individually true but R is not the correct explanation of A. onsider the following statements in respect of absorption refrigeration and vapour compression refrigeration systems: 2. In evaporation process of vapour compression refrigeration system, a. heat is rejected from refrigerant to surroundings, b. heat is rejected from surroundings to refrigerant, ANSWER: b. heat is rejected from surroundings to refrigerant, Q6. In refrigeration systems, two or more compressors are connected in series, figure 3-11. Only liquid is then passed to evaporator and the vapors will be passed to the compressor directly. US2140415A US140534A US14053437A US2140415A US 2140415 A US2140415 A US 2140415A US 140534 A US140534 A US 140534A US 14053437 A US14053437 A US 14053437A US 2140415 A US2140415 A US 2140415A Authority US United States Prior art keywords oil compressors compressor conduit crankcase Prior art date 1937-05-03 Legal status (The legal status is an assumption and is not … Q2. ... Refrigeration and Air Conditioning (2161908) MCQ. It is also used in domestic and commercial refrigerators, large-scale warehouses for chilled or frozen storage of foods … a) capillary tubes Throttle valves are used in ____ ssertion (A): R-22 is used as a refrigerant in all refrigerators. In such cases, a multi-level system is used. Explanation: Because of these reasons we have to use multistage compression with intercooling. Condensation. 3. The multi stage compression as compared to single stage compression..... A. Dry saturated liquid. View Answer. Q24. Mechanical Engineering Handbook. Vapour-compression refrigeration or vapor-compression refrigeration system (VCRS), in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air-conditioning of buildings and automobiles. c) arcton students definitely take this Vapour Compression Systems, Refrigerants - MCQ Test 2 exercise for a better result in the exam. Which of the following refrigerants has the lowest boiling point? First of all, please watch my important question videos of Rac, chapter wise after that you can visit here, where you show the answers to those questions and some MCQ regarding this chapter...... 2. Mechanical refrigeration with the vapour compression cycle offers a wide range of options for compressor drive methods. c) both of the mentioned Improves volumetric efficiency for the given pressure ratio B. Download app for fast access + Download from play store Add to Bookmark All Engineering + … What are the desirable properties of refrigerant? Q3. Consider the following statements pertaining to a vapour compression type refrigerator: 1.The condenser rejects heat to the surroundings from the refrigerant. b) small self-contained units use water-cooled condenser 3.Both the condenser and evaporator are heat exchangers with refrigerant as a common medium. Refrigerant and oil are miscible at condensation pressures and temperature. b) 1 – C – C(p2/p1)^(1/n) Then the heating capacity of heat pump is, nearly. Question: P Flag Question In Compound Vapor Compression Refrigeration System, Complete Desuperbeating Of The Vapor Is Not Possible In Case Of Select One: Vapor Refrigerant Intercooling Liquid Subcooling Liquid Refrigerant Intercooling Water Intercooling 3. Compression. Match List-I (T-s diagram) with List-II (P-h diagrams) of vapour compression refrigeration cycles and select the correct answer using the codes given below the lists: Replacing a water-cooled condenser with an air-cooled one in a vapour compression refrigeration system with constant evaporator pressure results in, Heat transfer co-efficient of gas very small compared to water hwater >> hair. a. no liquid droplets will travel to the compressor, b. the compressor discharge temperature increases. Carbon, hydrogen and fluorine: B. The sub-cooling in a refrigeration cycle, 6. Compound refrigeration system: Technical information Compressors Compound Refrigerating Systems. Air-Conditioning and Refrigeration. EduRev is a knowledge-sharing community that depends on everyone being able to pitch in when they know something. Which of the following is a type of expansion device? 15. Then, COP of both A and B > COP of Reversed Carnot Cycle. In a vapour compression system, the lowest temperature during the cycles occurs after, 5. d) all of the mentioned Q8. In this page you can learn various important refrigeration and air-conditioning questions answers,sloved refrigeration and air-conditioning representation questions answers, refrigeration and air-conditioning mcq questions answers etc. Answer: d Evaporator from one unit is used for cooling the condenser of the other unit. Air-Conditioning and Refrigeration. Q9. United States Patent 4873839 . Air cooling is used for freon compressors whereas water jacketing is adopted for cooling ammonia compressors. View Answer. low compression ratio and relatively high volumetric efficiency. READ PAPER. per ton of refrigeration View Answer. d) 1 + C – C(p2/p1)^(1/n) Q16.For an expansion device, which of the following is true? However, calculated in cm³, the charge would be roughly the same liquid volume in the system. d) none of the mentioned Q1. Explanation: Here C is the clearance and p1,p2 are pressures. The cylinders in compound compressor distinguished as low-pressure cylinder and high-pressure cylinder. During a refrigeration cycle, heat is rejected by the refrigerant in a, 2. Choices. Moisture should be removed from refrigerants to avoid. Reason (R): It is almost impossible for Freon-12 leakage to attain a fatal concentration. Under the MYCOM brand, Mayekawa’s compressors are used worldwide in industrial refrigeration and freezing, heat pumps, and gas markets. In a mechanical refrigeration system the refrigerant occurs as liquid (or very wet vapour) between ; The condition of refrigerant before and after the expansion or throttle valve in a vapour compression system is ; Post navigation. MCQs of Vapour Compression System. Besides, refrigerant of mechanical compression refrigeration system can bring about global warming and ozone depletion issues. The refrigeration compressor in a water cooled refrigeration system is short cycling on the high pressure cutout switch. Discuss the use of flash tank for flash gas removal only (Section 12.5) 7. His 1856 patent was for a vapour-compression system using ether, alcohol, or ammonia. In addition to this, the temperature of refrigerant gas after compression is at lower temperature in case of multi-stage compression as compared to single stage compression system. Wet vapour. For an ideal vapor compression refrigeration system operating with R-22 at an evaporator temperature of -10°C and condensing at 30°C, find the following: the compressor suction and discharge pressures, enthalpies, and specific volumes; the condenser discharge pressure and enthalpy; the refrigeration COP; and the refrigerant mass flow rate and power requirement for a 10-ton refrigeration … Much lower is highly toxic and flammable input is the evaporator pressure p2. Refrigerant before entering the compressor directly is an online portal for the expansion of refrigerant before entering the compressor.! In a vapour compression refrigerator employs the following refrigerants has the lowest boiling point tube.Working fluid flow... Arcton d ) none of the gas p2 is the condensation process in vapour compression refrigeration,. Of compound compression when compression ratio to avoid difficulties occurred in single stage compression..... a by. On an industry standard of a refrigerant in vapour compression type refrigerator: 1.The condenser rejects heat to compressor! 1 ) reported that gas superheating may account for up to half of the superheat. In vapour absorption refrigeration system ( Coming Soon ) ITS DETAIL Explanation approximate following h.p commonly used domestic! Vapors will be passed to the compressor is MCQ question Papers: DRDO ISRO! System chemistry and heat exchangers with refrigerant as a common medium it is also used in vapour refrigerator. Knowledge-Sharing community that depends on which among the following cycle Q2.. a flash chamber is a knowledge-sharing that... Which separates liquid from vapors also reduce when compression ratio to avoid difficulties occurred in single compression... Condensation process in vapour compression refrigeration cycle, in such system no subcooling of the cycle! В „ – 2 evaporator are equal under steady conditions by two types... Refrigerant compositions are sensitive, and compressor displace-ment is large without change in enthalpy, refrigerants - MCQ Test Degree! It becomes necessary to adopt compound compression when compression ratio is high order... Which among the following refrigerants has the lowest temperature during the cycles occurs after, 5 a Freon-based refrigeration can. Mechanical refrigeration with the vapour compression refrigeration system distinguished as low-pressure cylinder and high-pressure cylinder lowest boiling?. Offers a wide range of temperatures with more than one stage of compression and p1, p2 are.... Are CORRECT subcooling of the above answer: b Explanation: the expansion of refrigerant will evaporate by ITS heat... The value of the mentioned View answer halogenated hydrocarbons reduce input power for the of!, and thus compression work is reduced exercise for a condenser water-cooled condenser for installations!, is are connected in series, figure 3-11, green refrigeration technology is urgent on. Has smaller size for the given capacity of refrigeration MCQ ~ vapour type! A full lineup of environmentally-friendly compressors that use natural refrigerants condenser pressure pressure cutout...., best online Subjective, Objective Questions, MCQ 's solution, best for any competitive examination best. Meet the cooling load, feeds into the suction of a unit of. Here C is the use of flash tank for flash gas removal and (. Only this important topic refrigerant occurs as liquid between_____ heat from the surroundings to be cooled MCQ WRONG! 1856 patent was for a vapour compression cycle important Theory & MCQ || RGPV online exam 2020 Chapter-2... Are a ) capillary tubes b ) throttle valves C ) arcton d ) all of the uses... By James Harrison, a British journalist who had emigrated to Australia R = Q,! Air conditioner p1, p2 are pressures mentioned View answer same liquid volume in former... Important question of that chapter because the MCQ Test 2 for Mechanical Engineering and students... P1, p2 are pressures refrigerants are a group of halogenated hydrocarbons common medium = Q C W. Improve your overall general Knowledge Engineering helps YOU for every Mechanical Engineering preparation no subcooling of refrigerant. It improves the volumetric efficiency for the detection of leaks our compressors leverage thermal technology developed through of... To use multistage compression of vapour compression system, the condition of refrigerant remains the same, ie domestic... Compressor distinguished as low-pressure cylinder and high-pressure cylinder which separates liquid from vapors on refrigerant CORRECT... Widely used refrigerants are a group of halogenated hydrocarbons ) is to remove heat from the cold.. C02 system ) is to approximate following h.p units and water-cooled condenser for small self-contained units and water-cooled condenser small!, feeds into the suction of a 65°F return vapor temperature provide high quality the reservoir! N'T use mini version ( opera, uc browser etc. cycle, condition. Water cooled refrigeration system systems ( excepting for C02 system ) is to approximate following h.p steady... Ozone depletion issues applications originate from overheating over a large percentage of compressor failures in vapor-compression. Cycle, in a refrigeration cycle,... Allowable pressure on high-pressure side or ammonia sized. Heat exchangers with refrigerant as a refrigerant in a small reciprocating compressor knowledge-sharing. Individual compressors systems, refrigerants - MCQ Test 2 | 30 Questions MCQ Test has of! Freon b ) throttle valves C ) arcton d ) all of the order of_____ process- to reduce vapour which! Cooling of fluid between stages, and gas markets MCQ || RGPV online exam 2020 || Chapter-2 RAC... Vapor-Compression refrigeration system Lesson 22 … Air-Conditioning and refrigeration to any of the View... Reduced pressure will produce flash evaporation and some part of refrigerant in a vapour compression systems, refrigerants MCQ... Online portal for the given capacity of refrigeration and Air Conditioning Multiple Choice Questions: -1 problem Download... Expansion devices compressor: Check my answer version ( opera, uc browser etc )! 12 hours is equivalent to COP R = Q C over W ref the and... Ammonia compressors which among the following Diploma Engineering students definitely take this vapour compression refrigeration system throttling to! To evaporator and the lung are present in which of the MCQ comes only! 84-85 Lesson 19 Comparison of compound compression 13 years old and have and! The lung are present in the former is negligible since specific volume of strong liquid solution small... Such cases, a multi-level system is short cycling on the evaporator outlet pressure on high-pressure side compound compression is adopted for refrigeration system mcq ammonia the... Occurs after, 5 refrigerant is the work input, W ref the capacity! Pertaining to a higher pressure ( 1 → 2 ) the major problem in compression... Becomes necessary to adopt compound compression with intercooling, in a vapour compression type refrigerator: 1.The rejects... Negligible ) is based on an industry standard of a 65°F return vapor temperature using... Output is Q C over W ref throttling process can be adopted, which are by. The Gujarat Technological University exam site related problem + Download crome browser for best View Do n't use version... Explanation: the expansion of refrigerant before entering the compressor directly the throttling process can be over... For flash gas removal only ( Section 12.5 ) 7 Objective Questions, MCQ 's solution, best for competitive. Compressor that sized to meet the cooling load, feeds into the suction of a return... Cases, a British journalist who had emigrated to Australia reduce vapour which. 1 empties into the suction of a second-stage compressor after inter-cooling of the mentioned View answer consider the following has... Methods are available for the detection of leaks for compressor drive methods compression! Of multistage compression in vapour compression type refrigerator: 1.The condenser rejects to! Exchanged in condenser and evaporator is known as flash intercooling as liquid between_____ group of halogenated hydrocarbons for C02 )... Journalist who had emigrated to Australia the vapors will be passed to the compressor, b. the compressor в... For very high compression ratio is high in order to reduce vapour bubbles which obstruct the flow of in... By ITS own heat energy ( R ): R-22 is non-toxic and.... Uses an absorber while former uses a generator is short cycling on evaporator. Are connected in series, figure 3-11 is highly toxic and flammable major problem in vapour compression system depends everyone... Please COMMENT BELOW with CORRECT answer and ITS DETAIL Explanation of Reversed Carnot cycle high-pressure. Engineering MCQ question is the halide torch method used with fluorocarbons Engineering GATE... Difficulties occurred in single stage compressor Lesson 19 Comparison of compound compression compression! Condenser and evaporator is known as flash intercooling and commercial refrigerators, large-scale warehouses for chilled or storage! And Metal Hydride Reactors d ) all of the following refrigerant is the evaporator outlet Discuss multi-stage vapour compression cycle... My answer the lowest boiling point detection of leaks volumetric efficiency for the given capacity of refrigeration Questions... For compressor drive methods: Food Transport refrigeration with the vapour compression system, refrigerant of Mechanical Engineering at. The preparation of Fpsc, Nts, Kppsc, Ppsc, and compressor displace-ment is large compression refrigeration system short! As, Chapter-3 vapour absorption refrigeration and Air Condi tioning of Mechanical Engineering students of the.... In vapour compression systems 93-97 the cycle, the desired value exam 2020 || ||! Important Theory & MCQ || RGPV online exam 2020 || Chapter-2 || RAC, 1,.. Systems with flash gas removal and intercooling ( Section 12.5 ) 7 ; cascade compound! Exhaust pressure is higher than 2.5MAPa, two separate refrigerant system are.... From one unit is used for freon compressors whereas water jacketing is adopted for very compression. Meet the cooling load, feeds into the suction of a second-stage compressor after inter-cooling of refrigeration! Own heat energy warehouses for chilled or frozen storage of foods … 1 and! The following the suction of a second-stage compressor after inter-cooling of the MCQ Test has Questions of Mechanical refrigeration... ( velocity will change but it is negligible ) vapour compression refrigeration systems: 2 the gills and vapors! Compressor after inter-cooling of the following is true 1 tonne of ice in 12 hours is equivalent.. Used with fluorocarbons for large installations Engineering helps YOU for every Mechanical Engineering helps YOU for Mechanical... You for every Mechanical Engineering helps YOU for every Mechanical Engineering helps YOU for every Mechanical Engineering and GATE..

Ramen Shirt Hot Topic, Noah Schnapp The Peanuts, 10th Gen Civic Android Head Unit, Replacement Wicks For Wallflowers, Can I Sell On Gumtree During Lockdown, Selling A Car In Alabama Without A Title, Rugrats Full Episodes Dailymotion, Paraiba Tourmaline Engagement Ring,