AаBЬСcDd AaBьСсDd AaBbC AаBЬСсL A ав АавьссD AaBЬСcDdAaB= =E E - - -1 Normal1 No Spac. Heading 1Heading 2TitleSubtitleSubtle Em...EmrParagraphStylesThere is a hot water source in New Delhi.Our plan is to use this heat source for heating and hotwater supplies of a site of 100 hostels. The outlet temperature of the water from the source is170°C.5- Choose at least two different fluids for ORC and compare the properties of these fluids.E (Ctrl) -

The two organic fluids are - R600 - It is non-toxic, non-flammable and has a critical temperature…

Answered: There is a hot water source in New…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Inginning Thermo home in your default browser Set as defaul ok.pdf pressure definition ⒸF|C/Users/erice/Desktop/REY/1s%20TERM20-Teaching/E-boo * *** Mer of Performan Toyda Spor The Impoft ****** tafsson ** SE satel 336 /1009 supplied. 6-47E A heat pump with a COP of 1.4 is to produce a 100,000 Btu/h heating effect. How much power does this device require, in hp? 6-48 An air conditioner removes heat steadily from a house at a rate of 750 kJ/min while drawing electric power at a rate of 5.25 kW. Determine (a) the COP of this air conditioner and (b) the rate of heat transfer to the outside air. Answers: (0) 2.38, (b) 1065 kJ/min 6-49 A household refrigerator that has a power input of 450 W and a COP of 1.5 is to cool 5 large watermelons, 10 kg each, to 8°C. If the watermelons are initially at 28°C, determine how long it will take for the refrigerator to cool them. The watermelons can be treated as water whose specific heat is 4.2 kJ/kg-°C. Is your answer realistic or optimistic? Explain.…
at o G". The tank is now heared I tank contains R-134 a unlil the Syrtem be at 50c and 400k pg- The Sr Survondings temperatune is 300 k G1z find o The heat tmansfer to Fhe Sxstem Tank Per uint mass cQ iz) in kg/ng7 R-1349 e Total enmnopy in kJ/kg-K ? generation C Si2) PL=460 kP Tu w=300 K
Given • 1 million people in Hong Kong using low-flush toilet and low-flow shower head.• 1 million leaky toilet and Faucet. Energy needed to treat waterAverage energy use for water treatment drawn from southern California studies is 652 kWh per acre-foot (AF), where one AF = 325,853 gallons.Thermal Energy in CoalThe thermal power plants consume about 0.45 kg of coal per kWh.Energy output/fire power plantA typical 500 megawatt coal power plant produces 3.5 billion kWh per year.CO2 EmissionTaking coal to contain 50 percent carbon, which combines with oxygen during burning to form CO2, we can arrive at 1.83 kg CO2 for every 1 kg of coal burned. Find 3. How much CO2 we can reduce?
7-75 Reconsider Prob. 7-73. Now, it is proposed that the liquid water coming out of the separator be used as the heat source in a binary cycle with isobutane as the working fluid (Fig. P7-75). Geothermal liquid water leaves the heat exchanger at 90°C while isobutane enters the turbine at 3.25 MPa and 145°C and leaves at 80°C and 400 kPa. Isobutane is condensed in an air-cooled condenser and then pumped to the heat exchanger pressure. Assuming an isentropic efficiency of 90 percent for the pump, determine (a) the mass flow rate of isobutane in the binary cycle, (b) the net power outputs of both the flashing and the binary sections of the plant, and (c) the thermal efficiencies of the binary cycle and the combined plant. The properties of isobutane at various states in the cycle are h, = 755.05 kJ/kg, h, = 691.01 kJ/kg, h = 270.83 kJ/kg, and h,, = 276.65 kJ/kg.
Given • 1 million people in Hong Kong using low-flush toilet and low-flow shower head.• 1 million leaky toilet and Faucet. Energy needed to treat waterAverage energy use for water treatment drawn from southern California studies is 652 kWh per acre-foot (AF), where one AF = 325,853 gallons.Thermal Energy in CoalThe thermal power plants consume about 0.45 kg of coal per kWh.Energy output/fire power plantA typical 500 megawatt coal power plant produces 3.5 billion kWh per year.CO2 EmissionTaking coal to contain 50 percent carbon, which combines with oxygen during burning to form CO2, we can arrive at 1.83 kg CO2 for every 1 kg of coal burned. Find 4. How many African children (1 liter/kid/day) we can support?
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Given• 1 million people in Hong Kong using low-flush toilet and low-flow shower head.• 1 million leaky toilet and Faucet. Energy needed to treat waterAverage energy use for water treatment drawn from southern California studies is 652 kWh per acre-foot (AF), where one AF = 325,853 gallons.Thermal Energy in CoalThe thermal power plants consume about 0.45 kg of coal per kWh.Energy output/fire power plantA typical 500 megawatt coal power plant produces 3.5 billion kWh per year.CO2 EmissionTaking coal to contain 50 percent carbon, which combines with oxygen during burning to form CO2, we can arrive at 1.83 kg CO2 for every 1 kg of coal burned. Find1. How much energy we can save?
Prlen # 9. Solve for: a) heat tranefer pate of ayatem ) mass Mow rate bath Atreams. Ueing a double kipe Reat eschunger (imside di anaeten =0.38 m, %3D outside diaetu = 0.40 m total length= 0.14 m steam (0.12 mPa kas wndengme The steam conde na atiin method. wtili ged peservoir water flow, outlet ald fluid temp. = at 306.95 K using 321.85 K countereurrent Uaing ouerall neat tranefer outride Aurface area, Crefficint: Uo-5219.97 W/m² K
AS& Heat Transfer in Steam Heater Water at an average of 70°F is fiowing in a 2-in. steel pipe, schedule 40. Steam at 220°F is condensing on the outside of the pipe. The con vective coefficient for the water inside the pipe is A = 500 btu/h ft2.°F and the con- densing steam cocfficient on the outside is h = 1500 (a) Calculate the heat loss per unit length of1 ft of pipe using resistances. (b) Repcat, using the overall based on the inside area Ap (c) Repeat, using U 13.2- Ans. (a)q= 26 710 btu/h (7.828 kW). (b) Uj = 329.1 btu/h-ft2."F (1869 W/m2. K), (c) U.= 286.4 btu/h ft2.°F (1626 W/m2. K)
. A pump is used for pumping water from lake at height of 100 m consuming power of 60 kW. Inlet pipe and exit pipe diameters are 150 mm and 180 mm respectively. The atmospheric temperature is 293 K. Determine the temperature of water at exit of pipe. Take specific heat of water as 4.18 ??/??. ?
Q.2//B// Give the reasons for each of the following: 1- Why use waste heat in air conditioning system? 2- Why during winter season the temperature of supply air must be above form room condition space? 3- Why calculate the metabolic rate of the occupants? 4- Why during the sensible heating process, the relative humidity increase? 5- Why during cooling and de-humidification process involves both latent and sensible heat transfer processes? "20min"
3. Solar radiation heats the surface after sunrise, and the resulting heat flux F to the atmosphere is approximated by 2T(t – tnoon) F = F cos 6 a.m. < t< 6 p.m. max At

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There is a hot water source in New Delhi.Our plan is to use this heat source for heating and hot water supplies of a site of 100 hostels. The outlet temperature of the water from the source is 170°C. 5- Choose at least two different fluids for ORC and compare the properties of these fluids.