#1
16th June 2015, 11:05 AM
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Jiwaji University Model Question Paper
Hello, I am looking for the details regarding the B.Tech I Semester Regular Examinations Model Question Paper of REFRIGERATION & AIR CONDITIONING Mechanical Engineering. So can you please provide me the details regarding this including the contact details of the University??
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#2
16th June 2015, 04:51 PM
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Re: Jiwaji University Model Question Paper
Jiwaji University (JU) is a public affiliating university which is located in Gwalior, Madhya Pradesh, India. The University was established in 1964. The list of faculty and the departments and the schools: Faculty of Arts School of Studies in Library and Information Science Faculty of Commerce and Management School of Studies in Commerce School of Studies in Management School of Studies in Tourism Administration Faculty of Life Science School of Studies in Biotechnology School of Studies in Microbiology School of Studies in Biomedical Technology School of Studies in Botany Indra Gandhi Academy of Environment Education Research and Ecoplanning School of Studies in Zoology School of Studies in Molecular and Human Genetics School of Studies in Neuroscience Institute of Ethnobiology Faculty of Science School of Studies in Earth science School of Studies in Computer Science & Application School of Studies in Chemistry School of studies in Environment Chemistry School of Studies in Marketing Management (MBACSM) School of Mathematics and Allied Science School of Studies in Physics School of Studies in Jyotrivigyan School of Studies in law School of Studies in Pharmaceutical Science Faculty of Social Science School of Studies in Ancient Indian History Culture and Archeology School of Studies in Economics School of Studies in Political Science School of Studies in Adult/Continuing and Extension Education Faculty of Physical Education School of Studies in Physical Education & Sports Science Tansen Institute of Performing Arts Faculty of Distance Education Institute of Distance Education You are looking for the B.Tech I Semester Regular Examinations Model Question Paper of REFRIGERATION & AIR CONDITIONING Mechanical Engineering. So I am providing it to you: 1. (a) Give a brief description of an ideal cycle of air refrigeration. [6] (b) A carnot refrigerator and a heat pump are supplied with equal amount of work. The refrigerator operates between 270C and +270C and the heat pump operates between + 450 C and + 270C. The refrigerator absorbs 4000 kJ/ min at 270C. The heat pump absorbs all the heat rejected by the refrigerator and supplies at 450C. Compute (i) COP of refrigerator (ii) COP of heat pump (iii)heat available at + 450C and (iv) work input to each unit. [10] 2. (a) Describe the use of liquid vapour regenerative heat exchanger in a vapour compression system [6] (b) A simple saturation ammonia compression system has a high pressure of 1.35 MN/m 2 and low pressure of 0.19 MN/m 2. Find per 400,000kJ/h of refrigerating capacity the power consumption of the compressor and COP of the cycle. [10] 3. (a) Explain the working of a rotary screw compressor. [10] (b) How the capacity control is achieved in refrigerant compressor? [6] 4. (a) Explain the working of an evaporative condenser. [10] (b) Give the comparison of flooded evaporators and dry evaporators. [6] 5. (a) What is the effect of inert gas in three fluid refrigeration system. [4] (b) What is absorption refrigeration system and how it differs from convention vapour compression system and explain its working. [8] (c) What is Carnot COP of absorption refrigeration system. How it is differ from actual COP. [4] 6. (a) With the help of a sketch of the processes on Mollier chart explain how the refrigeration is produced in steam jet refrigeration system. [10] (b) What difference does it make when the steam jet refrigeration system operates with a barometric condenser instead of a surface condenser? [6] 7. An auditorium of 100 seating capacity of conditioned for the given specifications Out door conditions 35 and 65% RH Required air inlet conditions 15o C and 40 RH. The required condition is achieved first by cooling and dehumidifying and then by heating. Find the following (a) The capacity of the cooling coil in tons of refrigeration (b) Capacity of the heating coil in kW (c) Bypass factor of the heating coil if the surface temp of the coil is 22o C [16] 8. (a) Define the following in relation to the conditioned supply air to room ‘Throw’, ‘Drop’ and ‘Spread’. [6] (b) State the different types of supply air out lots. (c) Describe the factors governing the selection and location of supply air outlets. [4] Contact: Jiwaji University, Gwalior Mahalgaon, Gwalior, Madhya Pradesh 474002 0751 244 2712 Map: [MAP]Jiwaji University, Gwalior[/MAP] |