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Previous Year Question Paper

QP-ESEM-26-220626-MECHANICAL-ENGINEERING-PAPER-I

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Engineering Services (Main) Examination, 2026 faatsr DETACHABLE MECHANICAL ENGINEERING Paper I Time Allowed : Three Hours Maximum Marks : 300 QUESTION PAPER SPECIFIC INSTRUCTIONS Please read each of the following instructions carefully before attempting questions. There are EIGHT questions divided in TWO Sections. Candidate has to attempt FIVE questions in all. Questions No. 1 and 5 are compulsory and out of the remaining, any THREE are to be attempted choosing at least ONE question from each Section. The number of marks carried by a question/part is indicated against it. Wherever any assumptions are made for answering a question, they must be clearly indicated. Diagrams/Figures, wherever required, shall be drawn in the space provided for answering the question itself. Unless otherwise mentioned, symbols and notations carry their usual standard meanings. Psychrometric Chart is given on Page No. 62 Attempts of questions shall be counted in sequential order. Unless struck off, attempt of a question shall be counted even if attempted partly. Any page or portion of the page left blank in the Question-cum-Answer Booklet must be clearly struck off. Answers must be written in ENGLISH only. 1 SNCS-O-MCHN 1.(a) 1.(b) 1.(c) 1.(d) 1.(e) 2.(a)(i) SECTION ‘A’ Discuss how the largest and smallest length and time scales are estimated in turbulent flows. Consider flow of water over a cylinder of diameter ‘D = 0-1 m’. Water is at normal temperature and pressure has kinematic viscosity of 1-01<10°° m?/s. Also assume uniform flow at 2 km/hr. Estimate the length and frequency of smallest scale. 12 A nozzle of a cooling tower disperses water into a stream of droplets. Find the work done to atomise 1 kg of water into droplets of the average diameter of 45 um. Assume that water enters the nozzle through a pipe of 10 mm diameter and 1 kg of water is contained in L metres length of inlet pipe. Consider the process to be isothermal at ambient conditions, surface tension of water in contact with air = 0-1 N/m, and density of water = 980 kg/m’. 12 A brick: wall 0:16m thick separates combustion gases in a furnace from the atmospheric air at 30°C. The outside surface temperature of wall is at 102°C while its emissivity is 0-8 and outside heat transfer coefficient is 23 W/m°K. Assume thermal conductivity of brick material as 1-2 W/mK. Calculate the inner surface temperature of the brick wall. Take Stefan-Boltzmann constant (0) = 5-67*10°°8 W/m?K?. 12 A six cylinder, four-stroke diesel engine develops 150 kW at 3500 rpm. The brake specific fuel consumption of the engine is 0-15 kg/kWh. Calculate the quantity of fuel to be injected per cycle per cylinder in cc/ cycle. Consider the density of the diesel as 750 kg/m’. 12 What is meant by specific humidity ? Show that specific humidity is a function of partial pressure of water vapour. 12 A cylindrical tank of diameter D contains liquid to an initial height /g. At time t= 0, a small stopper of diameter d is removed from the bottom. Using Bernoulli’s equation with no losses, derive (A) a differential equation for free surface height, h(t) during draining and (B) an expression for the time fp to drain the entire tank. 10 SNCS-O-MCHN 2 2.(a)(ii) Consider uniform flow past an elliptic cylinder with a parabolic shaped wake as shown in figure below. Pressure at sections | and 2 are assumed to be equal. Let b be the width of this elliptic cylinder into the paper. Find a formula for the force 2.(b) 2.(c) F on the cylinder due to the flow. Also compute coefficient of drag (Cp). 10 ——>, Uo Up Parabolic shaped Uo —+| wake >; b width into L — ‘a the paper Up__] Spa aT rs L _,l 2L Parabolic U tb shaped wake 2 Acetylene (C,H,) at 100 kPa and 25°C, enters an insulated mixing chamber at a rate of 0-7 kg/s. It is mixed with air at 100 kPa, 200°C, in an air/acetylene mass ratio of 15-0. The flow is steady and kinetic energy is negligible. Determine (i) the temperature of the mixture leaving the chamber and (ii) the irreversibility of the mixing per kg of acetylene. Consider the mixture is discharged at an ambient pressure and temperature of 100 kPa and 25°C. Take C, of acetylene as 1-91 kJ/kg K, Cp of air as 1-02 kJ/kg K, and Cy of acetylene and air as 1-7 kJ/kg K and 0-72 kJ/kg K, respectively. 20 An electric current of 33995 A flows along a flat steel plate 12-4 mm thick and 101 mm wide. The temperature of one surface of the plate is 80°C and that of the other is 95°C. Find (i) the temperature distribution across the plate (ii) the value and position of the maximum temperature (ili) total amount of heat generated per metre length of the plate and (iv) the flow of heat from each surface of the plate. The end effects along the short sides of the plate may be neglected. For steel, take resistivity as 12x10~° Q cm and thermal conductivity as 52-1 W/mK. 20 3 SNCS-O-MCHN 3.(a) 3.(b) 3.(c) Oil is cooled to 375 K in a parallel flow heat exchanger by transferring its heat to the cooling water that leaves the heat exchanger at 300 K. However, it is required that oil must be cooled down to 349 K by increasing the length of heat exchanger while the oil and water flow rates, their inlet temperatures and other dimensions remain unchanged. The inlet temperatures of cooling water and oil being 288 K and 426 K respectively. If the length of heat exchanger was | m initially, calculate the following : (i) the outlet temperature of the cooling water for the new heat exchanger (ii) the length of the new heat exchanger. 20 A two cylinder compressor has bore and stroke equal to 5-65 cm and 5 cm respectively. Its speed is 1450 r.p.m. and volumetric efficiency is 100%. If the liquid refrigerant reaches the throttle valve at 40°C, determine the (i) mass of refrigerant circulated per minute and (ii) the theoretical refrigerating capacity of the compressor when operating at a suction temperature of -10°C. Assume simple saturated cycle. How will the results get modified if clearance volumetric efficiency is also considered with a clearance factor of 3-9%. Assume Y= 1-14 for the refrigerant. The properties of the refrigerant are given below : Tempera- | Pressure| Specific | Enthalpy | Enthalpy | Entropy Entropy ture (°C) | (bar) volume liquid vapour liquid vapour of vapour | (kJ/kg) | (kJ/kg) | (kJ/kg K) (kJ/kg K) v,(m?/ kg) he h, Sp Sp -10 2:1928 | 0:07702 190-72 347-96 0:9656 1-5632 40 9-5944 | 0-01863 239-29 368-67 1-1324 1-5456 Also calculate loss of refrigerating capacity due to flashing in the expansion device in both cases. 20 A perfectly insulated rigid tank having a volume of 0-3 m? contains water at 150°C in the saturation state, with 25% of the volume occupied by liquid. A valve on the top of the tank is opened, and vapour is allowed to escape until the pressure drops to 1 atm and the temperature to 100°C, at which the valve is closed. Calculate the mass of the vapour which leaves the tank. Assume that the steam leaves at an average enthalpy corresponding to the temperatures mentioned. Take the properties from the steam tables given at the end. 20 SNCS-O-MCHN 4 4.(a) 806 kg/h of cream cheese at 16°C is pumped through a tube 100 mm in diameter, 1-74 m long and maintained at 94°C. Calculate : (i) the temperature of cheese leaving the heated section and (ii) the rate of heat transfer from tube to the cheese. Use the following correlation for laminar flow inside a tube : kD 0067|( 2 re Pr| Nu= =a 365+ 1+004( 2). | The thermophysical properties of cheese are : wl p = 1150 kg/m U = 22-5 kg/ms k = 0-42 W/m °C Cp = 2-75 kJ/kg °C 20 4.(b)(i) Determine the magnitude and direction of total pressure exerted by water on the curved surface AB which is quadrant of a circular cylinder as shown in the figure. The cylinder is 3 m long and has a diameter of | m. 10 SNCS-O-MCHN 4.(b)(ii) 4.(c)(i) 4.(c)(ii) 5.(a) The velocity field for a flow in a rectangular cartesian system are given by U=x(1+0) V=1 w=0 For this flow field find the equation of : (A) Streamline passing the point (1, 1) at 7=0 (B) Pathline of a particle released at the point (1, 1) at r=0 (C) Steakline at t= 0 that passes through (1, 1) (D) The density on a particular streamline in this flow has the value p, which is constant at time t=0. Derive an expression for density p at any subsequent time ¢ on the same streamline. 10 Illustrate the various stages of combustion in CI engines using the neat sketch of pressure-0 diagram. 10 In a fuel injection pump of a diesel engine, the volume of the fuel in the pump barrel before the commencement of the effective stroke is 8-0 cc. The fuel pipe line is 3-5 mm in diameter and 500 mm in length. The fuel in the injection valve is 3-0 cc. Assume the coefficient of compressibility of diesel to be 80x 10 per bar. Take the atmospheric pressure as 1 bar. Determine, (A) the displacement of the plunger to deliver 0-2 cc of fuel at 200 bar (B) the effective stroke of the plunger having a diameter of 8 mm. 10 SECTION ‘B’ Consider an experimental test rig for measuring performance of a reciprocating pump. It was found that the pressure gauges which are fixed at outlet and inlet side of the pump, shows too much fluctuations in these readings. Identify the error and suggest the way for its removal. Also, derive the work saved by adding the device for its removal. 12 SNCS-O-MCHN 6 5.(b) 5.(c) A coal based thermal power plant generating 500 MW of power is having overall efficiency of 40%. It uses coal having ultimate analysis of C— 70%, H—3%, S-1%, O-5% and remaining ash. Determine the amount of coal consumed in tonnes per hour. Also find out the air required to be supplied by FD fan for combustion inside the boiler in kg/s. Take heat released by completely combusting | kg of C, H and S as 33800 kJ/kg, 144500 kJ/kg and 9380 kJ/kg respectively. Assume air contains 23% of oxygen by mass and 20% excess air is required to ensure complete combustion of the coal. 12 15— WIND SPEED (8) m/s 10—- 10 s|_© 0 0 8760 HOURS IN A YEAR Wind speed-duration curve at three locations are given in the above figure as A, B, and C. Select the most suitable location to install a wind mill for power generation. Also find out the sweep area of the wind mill required to have installed capacity of 1 MW in that location taking average wind velocity. Assume the density of air as 1-2 kg/m? and efficiency of wind mill as 40%. Also find the length of each blade required. 12 7 SNCS-O-MCHN 5.(d) 5.(e) 6.(a) An inward flow reaction turbine, having an external diameter of 4 m runs at 200 rpm. The velocity of flow at inlet is 10 m/s. If the guide blade angle is 13°, find (i) the absolute velocity of water (ii) the velocity of whirl, at inlet (iii) the inlet vane angle, and (iv) the relative velocity at inlet. 12 Derive the theoretical power coefficient of a horizontal axis wind turbine. 12 An office building is to be air-conditioned for 50 staff for outdoor conditions of 30°C DBT and 75% R.H. If the quantity of outdoor air supplied is 0-4 m?/min/person, find the following : (i) Capacity of cooling coil in Tons of refrigeration. (ii) Capacity of heating coil in kW. (iii) Amount of water removed per hour. The required comfort conditions are 21°C DBT and 60% R.H. Air is conditioned first by passing it over a cooling and dehumidifying coil and then by heating. The by-pass factor for cooling and dehumidifying coil = 0. Also find the by-pass factor of the heating coil if its surface temperature is 25°C. Show the scheme of processes and represent the processes on a skeleton psychrometric chart. The psychrometric chart is attached. 20 SNCS-O-MCHN 8 ४012४3 1४311 3181135 छाए AUG ഉശധ ‘309070/21312395 33803 ૩૪૪ 93111 10111130 1471114113 ०४५४ 5314834০089 2: 0 0013௪ ड 6౫/౯౬ 06-0 6१/६५ ૬-0 9౫/౯౬ 08-0 6१/६५ ५८.0 ಆ \ \ 2০৪৪7483431 ੪11੪ 6 \ = oat? 09 sb ov ৪6 06 sz oz 91 01 ੦ j= 7 = स्यन्‌ [1 x દિ 1000 2 Nae ୮୪ ட்டு = ல்‌ = ੨ 2००० +۸) ا 5 اط ید‎ = = =a દ ણ તિ १००० as হয়ত ५ 3 5 P= = द्र >2 ডু [| હ ட ட اکچ‎ ಸಸ್ಯ mas 5 1 સા થે છ 3 2 8 bd பப்பு <| ଏ గై ह ర நிதல இவ 2 << 2 3.4 (| (ल కై “તરે ۵ کی‎ 00-1 - 4. હબ ವಿ 2 ٦ દૈ छ ANG S6-0 3 TA ley ங்‌ 8 3 தட ੮ ଧା ۹ 2 ২ 060] ஐய 22 1/൭ پر‎ > INL S ২ 4 z100 | ہے‎ + 12 [244 98-03 6100 4 ಷ್ಟ - ನೆ ଛି ல்‌ ड 080 6100 5 પ ~ 5 స 3 ——1 Sele" 0 9204 ০০২ = 1] 1]; ৮ © “ ୫ 42 96-0 ମୀ శ 7 ٢۲ 7 ૬ छ 2 01:03 9100 < (> ॐ ୦ a 3 2100: | 2 کی‎ A ಗ್ಗ ദ്‌? 99.04 5 ர 7. 7 ड 9100 টনি ച 7 > 09-0-] 6100 ଏ 3 hd [>> ୬ ୯ 0209 = 1৪ yes ૮ ತ್‌ ios = 9९] & AY ક ଭୁ 99-03 ` ಅಷ್ಟ ଞ୍ଚ ಇಗ ಸ್ನ 4 લ © 1 || > ರ 7 £ છ ઝે 6200 > છે થટ. 7 <> 4 2 5810/05 a ಕೆ 09-07] ৮০০০ /८ € 5 / જ 9200 x 8 ਤਕ & S 900 ৬ टॅ 17 જ 2 © ச்‌ 990; 206 7 \ / உய ୯ 0 ہے‎ / / ഭു്‌ ee 33731૪૩૬ اق ا‎ 7 હઠી 53 ள்‌, = 489 92010 ( 3౪౧౩౩౩౪౮ 21813010೬8 00 × | ~ = LYVHS OINLSINOYHOASd 09-01 موی‎ பிப 71/41 7 aa த்து னந 77/7/47 தீ ea / AY 1 7 AS ૬૬ 095 ୨୮ 0? ୨୫ _ ಸ 95-07 ୨୮ 01 961 06, ડટા 02 2 6.(b)(i) Explain the factors affecting the generation of biogas using the biodigestion method. 10 6.(b)(ii) The observed difference between the high and low water tide is 7-0 m, for a proposed tidal site. The basin area is 4-0«10° m2, which can generate power for 2 hours in each cycle. The average available head is assumed to be 6-5 m and the overall efficiency of the generation is 65%. Calculate the power at any instant and yearly power output. Take the density of the sea water to be 1025 kg/ m° and the total number of tidal cycle in a year is 705. 10 6.(c) Compare and justify the sub-critical and super critical power boiler operations based on the following parameters : (i) Tube thickness (ii) Need for boiler drum (iii) . Operating pressure (iv) Specific coal consumption (v) Initial and operating cost 20 7.(a) If Vj and Vj are velocities of flow at inlet and outlet, v, the tangential velocity of impeller at outlet and @ vane angle at outlet, show the following : (i) Pressure rise in impeller of a centrifugal pump when frictional and other losses in the impeller are neglected, is given by 2 2 _ ly 2 cosec? ap=5-(hi +3 —3 cosec $) (ii) Ideal efficiency of a pump, l li * 2y(y— yeotd) here, y is the speed ratio and y is the flow ratio. 20 SNCS-O-MCHN 10 7.(b) 7.(c) Condenser of a thermal power plant located in northern part of India needs to operate at various climates. A typical condenser during winter takes water at 5°C and is connected to cooling tower having range of 12°C. The same condenser during summer takes in water at 30°C and connected to cooling tower having range of 6°C due to high humidity of air. Minimum terminal temperature difference (TTD) must be 6°C to ensure proper condensation. For this condenser find out the following : (i) Minimum exit pressure permissible at turbine outlet during summer and winter. (ii) Expected performance efficiency, comparison of the power plant during summer and winter. (iii) Compare the cooling load on the condenser during summer and winter. (iv) LMTD of the condenser during summer and winter. (v) Justify the reason for more power cuts during summer based on this question. [Steam table is given at the end of the question paper] 20 A solar flat plate collector of 1 m x 2 m size receives solar heat flux perpendicular to surface having the value of 1000 W/m? during peak summer. Solar absorber plate temperature is measured to be 90°C and glass temperature is measured to be 60°C. Emissivity of plate and glass surfaces are 0-9 and 0-3 respectively. Convection heat transfer coefficient in the enclosed space between the plate and glass is 8 W/m2k. Backside of the absorber plate is covered by glass wool insulation of thickness 10 cm and convective heat transfer coefficient between back surface of the collector and atmosphere is 5 W/m?k. The atmospheric temperature is 25°C. Neglecting heat loss from the sides, find the efficiency of the collector. Thermal conductivity of glass wool is 0-3 W/mk. Take o = 5-67*10-°° W/m?kt. 20 11 SNCS-O-MCHN 8.(a) A simple turbojet is analyzed with the following data : Given (air/compressor side) : T, = 300 K, P, = 1 bar; . P2 Compressor pressure ratio, 7» = p= 8 1 Compressor Isentropic efficiency = 7, = 0-85 For compressed air : ¥,= 1-4, Cp, = 1-005 kJ/kg K Combustor : Turbine inlet temperature, 7, = 1200 K Burner efficiency : 7, = 0-9 Fuel LHV = 43 MJ/kg Turbine isentropic efficiency, 7,; = 0-8 Mechanical efficiency, N,, = 0-9 for gas Cp, = 1-15 kJ/kg K, ¥, =1-33 Nozzle and flight : Ambient pressure P, = | bar Nozzle efficiency, 1, = 0-95 Flight speed, Vy) = 250 m/s Assuming nozzle is convergent only and expands to ambient if unchoked. Calculate the following : (i) Compute compressor specific work. (ii) Compute fuel-air ratio. (iii) Turbine exit stagnation temperature. (iv) Check whether nozzle is choked ? (v) Specific thrust and SFC. SNCS-O-MCHN 12 20 8.(b) Following results are. obtained after analysing the flue gas and ash of the power boiler at different time of operation. (i) More oxygen than permissible limit. (ii) More CO and more O,. (iii) More CO and nil O,. (iv) Presence of NO, more than permissible limit. (v) More unburnt carbon in fly ash and hydro ash. Identify possible problem of combustion and suggest suitable remedial measure for each of them. 20 8.(c) Explain the use of thermal energy storage system to get continuous power generation using solar energy. Give the advantages and limitations. Also compare the latent heat and sensible heat thermal energy storage systems. 20 13 SNCS-O-MCHN Saturated Water and Steam (Temperatures from 0 °C to critical point) t 2 Specific volume ‌! Specific enthalpy Specific entropy /kg energy, kJ/kg kJ/kg kJ/kg K “6 bar | + | uy | | hy Neg | | Sy 20 0 | 0006109 | 00010002 | 2063 | -0-03| 2375-3 | - 0.02 | 2501-4 | 2501-3 [-0.0001| 9.1566 | 9.1565 0-01* | 0006112 | 00010002 | 206.2 | 000 | 2375.3 | 0-01 | 2501-3 | 2501-4 | 0000 | 9-156 | 9-156 1 | 0006567 | 00010002 | 192.6 | 42 | 23767 | 42 | 24990 | 25032 | 0015 | 9115 | 9-130 2 | 0007056 | 00010001 | 179.9 | 84 | 2378-1 | 84 | 24967 | 2505-0 | 0031 | 9073 | 9-104 3 | 0007577 | 0-0010001 | 168-1} 12-6 | 23795 | 126 | 24943 | 25069 | 0-046 | 9.032 | 9077 4 | 0008131 | 0-0010001 | 157-2} 168 | 23809 | 168 | 2491-9 | 2508-7 | 0061 | 8-990 | 9051 5 | 0008721 | 0-0010001 | 147-1} 21-0 | 23823 | 210 | 2489-6 | 2510-6 | 0076 | 8-950 | 9-026 6 | 0009349 | 0-0010001 | 137-7} 25-2 | 2383-6} 25.2 | 2487-2 | 2512-4 | 0091 | 8-909 | 9-000 7 | 001002 | 0-0010002 | 1290] 294 | 2385-0] 294 | 24848 | 25142 | 0106 | 8-869 | 8975 8 | 001072 | 0-0010002 | 120/9 | 33-6 | 23864 336 | 24825 | 2516-1 | 0-121 | 8829 | 8-950 9 | 001148 | 0-0010003 | 113-4] 37.8 | 2387-8 | 37.8 | 2480-1 | 25179 | 0136 | 8789 | 8-925 10 | 001228 | 0-0010004 | 1064 | 420 | 2389-2 | 42.0 | 2477-7 | 25197 | 0-151 | 8750 | 8-901 11 | 001312 | 00010004 | 99.86 | 462 | 23905 462 | 24754 | 2521-6 | 0166 | 8711 | 8877 12 | 001402 | 0001000 | 93-78 | 504 | 2391: | 504 | 2473-0 | 2523-4 | 0181 | 8-672 | 8-852 13 | 001497 | 00010007 | 88-12 | 54-6 | 23933 | 546 | 24707 | 25253 | 0195 | 882 | 8828 14 | 001598 | 00010008 | 82.85 | 588 | 23947 | 588 | 24683 | 2527-1 | 0210 | 8595 | 8-805 15 | 001705 | 00010009 | 77.93 | 63-0 | 23961 | 630 | 24659 | 2528-9 | 0224 | 8-557 | 878] 16 | 001818 | 0001001 | 73-33 | 672 | 23974 | 672 | 2463-6 | 25308 | 0239 | 8519 | 8758 17 | 001938 | 0001001 | 69-04 | 714 | 23988 714 | 24612 | 2532-6 | 0253 | 8-482 | 8-735 18 | 0-02064 | 0001001 | 65-04 | 75.6 | 2400-2 | 756 | 24588 | 2534-4 | 0268 | 8444 | 8712 19 | 002198 | 0001002 | 61-29 | 798 | 2401.6 | 798 | 24565 | 25363 | 0282 | 8407 | 8-690 20 | 002339 | 0001002 | 57.79 | 84-0 | 24029 | 840 | 24541 | 2538-1 | 0297 | 8371 | 8-667 21 | 002487 | 0001002 | 54-51] 88-1 | 2404-3 | 88-1 | 2451-8 | 25399 | 0311 | 8-334 | 8-645 22 | 002645 | 0001002 | 61.45 | 923 | 24057 | 92:3 | 2449-4 | 2541-7 | 0325 | 8-298 | 8-623 23 | 002810 | 0001002 | 48-57 | 965 | 24070 | 965 | 24470 | 2543-5 | 0339 | 8262 | 8579. 24 | 002985 | 0001003 | 45.88 | 1007 | 2408-4 | 100-7 | 2444-7 | 2545-4 | 0353 | 8226 | 8-579 25 | 003169 | 0001003 | 43-36 | 1049 | 2409-8 | 1049 | 24423 | 2547-2 | 0367 | 819] | 8-558 26 | 003363 | 0001003 | 40.99 | 109.1 | 2411-1 | 109-1 | 24399 | 2549-0 | 0382 | 8.155 | 8-537 તાયા 003567 | 0001004 | 38-77 113-2) 2412-5 | 113-2 | 2437-6 | 2550-8 | 0396 | 8-120 | 8516 28 | 003782 | 0001004 | 36.69 | 1174 | 2413-9 | 117-4 | 24352 | 2552-6 | 0-409 | 8-086 | 8495 29 | 004008 | 0001004 | 34-73 | 121.6 | 24152 | 121-6 | 24328 | 25545 | 0423 | 8405] | 8-474 30 | 004246 | 0001004 | 32.89 | 125.8 | 24166 | 125.8 | 24305 | 25563 | 0437 | 8-016 | 8-453 31 | 004496 | 0001005 | 31:17 | 130-0} 24180 | 130-0 | 2428-1 | 2558-1 | 0451 | 7982 | 8433 32 | 004759 | 000100 | 29.54 | 134.2 | 2419-3 | 134-2 | 2425-7 | 25599 | 0464 | 7.948 | 8413 33 | 0-05034 | 000100 | 28-01} 138.3 | 2420-7 | 138-3 | 2423-4 | 2561-7 | 0-478 | 7-915 | 8393 34 | 005324 | 0001006 | 26-57 | 142.5 | 2422-0 | 142-5 | 2421-0 | 2563-5 | 0-492 | 7-881 | 8373 35 | 005628 | 0001006 | 25.22 | 146-7 | 2423-4 | 1467 | 2418-6 | 2565-3 | 0505 | 7-848 | 8-353 *u, and 5, are chosen be zero tor saturated liquid at the triple point. SNCS-O-MCHN 14 [ 1 1 2 Specific volume | internal Specific enthalpy Specific entropy /kg pnergy, kJ/kg kJ/kg kJ/kg ‎ °C | क्षा |. ૪ 1 uy 7 ॥/ ಗ್ಯ h, 5 چر5‎ 7 36 ) 47 0-001006 23-94 | 1509 | 2424-7 | 1509 | 2416:1 | 2567-1 | 0519 | 7-815 | 8334 37 | 006281 | 0:001007, 22:74 | 155-0} 24261 | 155-0 | 24139 | 25689 | 0532 | 7782 | 8314 38 | 006632 | 0001007 21-60 | 159-2} 24274 | 1592 | 24115 | 25707 | 0546 | 7749 | 8295 39 | 006999 | 0:001007| 20:53 | 163-4) 24288 | 163-4 | 2409-1 | 25725 | 0559 | 7717 | 8276 40 | 007384 0-001008} 19-52 | 1676 | 24301 | 167-6 | 2406-7 | 25743 | 0573 | 7685 | 8257 41 | 007786 | 0:001008| 18:57 | 1717 | 2431-5 | 171-7 | 24043 | 25760 | 0586 | 7652 | 8238 42 | 008208 0:001009 | 17-67 | 175.9 | 24328 | 1759 | 24019 | 25778 | 0599 | 7621 | 8220 43 | 008649 0001009 | 16-82 | 180-1} 24342 | 180-1 | 23995 | 25796 | 0612 | 7589 | 8-201 44 | 009111 0-001010, 16-02 | 1843 | 2435-5 | 1843 | 23972 | 2581-5 | 0626 | 7557 | 8183 45 | 009593 | 0:001010, 15:26 | 1884 | 24368 | 188-4 | 23948 | 2583-2 | 0639 | 7526 | 65 46 01010 0:001010| 14-54 | 192.6 | 2438-2 | 192-6 | 2392-4 | 25850 | 0652 | 7495 | 8147 47 01062 0:001011 ¦ 13:86 | 1968 | 2439-5 | 1968 | 23900 | 25868 | 0665 | 7464 | 8129 48 01118 0001011 1 13:22 | 20100 | 2440-8 | 201-0 23876 | 25886 | 0678 | 7433 | 8111 49 | 01175 0001012 | 12:61 | 2051 | 24422 | 205-1 | 23852 | 25903 | 0691 | 7403 | 8-094 50 | 01235 0-001012} 12-03 | 2093 | 2443-5 | 209-3 | 23827 | 2592-1 | 0704 | 7372 | 8-076 52 01363 0:001013| 10-97 | 2177 | 2446-1 | 2177 | 23779 | 25956 | 0730 | 7312 | 8042 54 01502 0-001014 10-01 | 22600 | 2448-8 | 2260 | 2373-1 | 2599-1 | 0755 | 7253 | 8008 55 01576 0-001015 9568 | 230-2} 2450-1 | 230-2 | 23707 | 26009 | 0768 | 7-223 | 7991 56 01653 0:001015| 9149 | 2344 | 2451-4 2344 | 23682 | 2602-6 | 0781 | 7194 | 7975 58 01817 0:601016| 8372 | 2428 | 24540 | 2428 | 2363-4 | 26062 | 0806 | 7136 | 7942 60 04 0:001017| 7-671 | 251-1} 24566 | 251-1 23585 | 2609-6 | 0831 | 7078 | 7909 62 | 02186 0-001018 7-037 | 259-5 | 24593 | 2595 | 2353-6 | 2613-1 | 0856 | 7-022 | 7878 64 02393 0-001019 6463 |2679 | 2461-8 | 2679 | 23487 | 26165 | 0-881 | 6965 | 7846 65 02503 0-001020| 6-197 |272"0 | 2463-1 | 272-1 | 23462 | 26183 | 0894 | 6937 | 7831 66 02617 0:001021| 5:943 |2762 24644 | 276-2 | 23437 | 26199 | 0906 | 6910 | 7816 68 02859 0-001022 5-471 | 2846 | 24670 | 284-6 | 23388 | 2623-4 | 0930 | 6855 | 7785 70 03119 0:001023 | 5-042 129301 24696 | 2930 | 23338 | 26268 | 0955 | 6800 | 7755 75 03858 0-001026| 4-131 |3139 | 24759 | 313-9 | 23214 | 26353 | 1-015 | 6667 | 7682 80 | 04739 0-001029] 3407 |334-9| 2482-2 | 3349 | 23088 | 2643-7 | 1075 | 6537 | 7612 85 | 05783 0:001033 | 2:828 | 355-9 | 2488-4 | 3559 | 22960 | 26519 | 1134 | 6410 | 7544 90 07014 0-001036, 2-361 | 3769| 2494-5 | 3769 | 22832 | 2660-1 | 1192 | 6287 | 7479 95 | 08455 0-001040| 1-982 | 3979 | 2500-6 | 3979 | 22702 | 2668-1 | 1250 | 6166 | 7416 100 | 1-01325 0001044 | 1-673 | 418-9} 25065 | 419-0 | 22570 | 26760 | 1307 | 6048 | 7355 150 4-758 0:001091 ¦ 0:3928 | 6317 | 2559-5 | 6322 21143 | 27465 | 1-842 | 4996 | 6838 200 15-54 0-001157| 0127418507] 25953 | 852-5 | 19407 | 2793-2 | 2331 | 4101 | 6432 250 39:73 0:001251 ¦ 0-0501 110804! 2602-4 | 10854 | 17162 | 2801-6 | 2793 | 3-280 | 6073 300 85-81 0-001404 ¦ 0-0217 |1332.0| 2563-0 | 1344-0} 14049 | 2749-0 | 3-253 | 2451 | 5704 350 165-13 0:001740| 0-0088 |1641.9| 2418-4 | 1670-6 | 8934 | 25639 | 3778 | 1-433 | 5211 374.5* 2212 0-003155 | 00015520296 2029-6 | 2099-3| 00 2099-3 | 44298 00 | 44298 *Critical point. Note : / and ‎ values are zero at critical point. 15 SNCS-O-MCHN
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