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- Usable heat.4 A power plant using a CCGT cycle with .4 electrical efficiency 0.6 and with 8 % non-usable heat and mechanical losses delivers 500 [MWh] electricity annually. How much usable heat can be delivered by the plant? (multiple choice, one answer) [MWh] 160 [MWh] 267 O [MWh] 400 [MWh] 938 O [MWh] 1563 OEngine Cycle: Our inventor is still trying to design a heat engine that will outperform the Carnot cycle .. Design #801-456 is for an ideal, reversible engine that operates with the cycle shown below (A → B → C → D → A). The engine contains 0.421mol of a gas that has a heat capacity ratio of y = 1.300. Point Pressure [N/m²] Volume [m³] Temperature [K] A 1.05 x 105 0.010 300 B 1.85 x 105 0.010 529 1.85 x 105 0.014 751 D 1.05 x 105 0.014 426 PA B A D V (a) What is the efficiency of this engine cycle? (b) What is the efficiency for a Carnot cycle working between the same maximum and minimum temperatures?4-6- SI A six-liter, eight-cylinder, four- Stroke cycle race car engine operates at 6000 RPM using stoichio- metric nitromethane as fuel. Combustion efficiency. is 99%, and the fuel input rate is 0.198 kg/see. a- Volumetric efficiency of the engine [!] b-Flow rate of air into the engine. [ kg/sec.:] Calculate :
- c) compressor power [Btu/hr], and d) the refrigeration capacity [tons of refrigeration]. What is the ASHRAE refrigerant number with chemical formula CF3CH=CHC? Uco the Trouton's constant to estimate the molar latent heat of vaporization12. Imagine a solar collector for hot tap water in a hot climate. De outdoor temperature is 22 degree Celsius. De tank of the solar collector is placed outside, and the cold water temperature to the collector is 20 degree Celsius. De water flow rate through the collector is 45 liter/hour. De collector is 2 [m2] and the average solar radiation in the time period considered is 1000 [W/m2]. What is the temperature of the hot water to the tank? The efficiency of the collector can be assumed to be 0.7 (we neglect the dependency to the water temperature) (multiple choice, one answer) 34 [OC] 47 [OC] 54 [OC] 67 [OC] 74 [OC]|The following processes occurs in a rever sible thermodynamic cycle: 1-2: Reversible polytropic compression at pressure X)bar at volume Y)m' to a pressure [Z]bar and specific volume (A]m'/kg. The index of compression may be taken as n. 2-3: Reversibly expansion with expansion index of 2 to pressure [B/bar. 3-1: Reversible cooling at constant volume to the initial state.
- Houses .18 A deep geothermal system delivers 50000 [MWh] heat at 60 [oC] yearly. The average heating demand of a house in a new-built district equipped with floor heating is 10000 [kWh]. How many houses can be heated by this geothermal ?system 5 O 500 O 5000 50000 ONo card B a m OO O N 95)1:47 mlms.hu.edu.jo/mod/qu Two tanks are placed on table: Tank (1) contains one kg of gas type A at Temperature T, (K), while Tank (2) contains one kg of gas type B at temperature [ (19/7) T,]. The tanks are then put into thermal contact with each other and heat flows between until the gases reach a common final temperature T,"tanks are insulated from all other boundaries". Knowing that the specific heat ratio (CvA /CvB) = (9/7) , The final temperature (K) will be : Select one: A. 1.375 T. B. 1.250 T. c. No enough information D. 1.625 T. E. 1.750 T. F. 1.875 T. G. 1.500 T, ...lescope Lab and stering om ourse Evaluation mand 2 W S Question list X O Question 3 O Question 4 O Question 5 Review 8-97 (algorithmic) Video Etext pages Get more help. prod.pearsoncmg.com/Player/Player.aspx?cultureld-en-us&theme-finance&style=highered&disableStandbyIndicator=true&assignmentHandleslocale=true# # 3 E Question 6 D C $ R K F An electric winch is being used to help construct your facility. The winch operates at 71% efficiency with an input voltage of 120 volts [V]. When the winch lifts an object to a height of 7 meters [m] in 25 seconds [s], a current of 21 amperes [A] is required. What is the approximate weight of the object the winch lifted in units of newtons [N]? Click the icon to view the table of common derived units in the Sl system. % The weight is N. (Round your answer to a whole number.) 5 G Search or type URL T G 6 MacBook Pro B Y H 吃的 & 7 N U 8 J I M ( 9 K MOSISO < O O L Clear all a P : command Check answer ... ?? I option delete re
- In order to fnd the specifc heat c of an unknown substance, you place 75 g of the substance in a 30 g copper calorimeter that contains 65 g of water, all initially at 20 °C. You then add 100 g of water at 80 °C, and measure the fnal temperature of the system to be 49 °C. Assuming no heat is lost to the environment, what is c? [Answer: c = 2200 J/kg. K] 즈Question list O Question 3 O Question 4 3 E D C Question 5 Question 6 Video 4 Etext pages R F K Water enters a boiler at 20 degrees Celsius [°C]. The boiler operates for 5 minutes [min] to heat 25 gallons [gal] of water. The boiler requires an input power of 21.5 kilowatts [kW] and is 85% efficient. The specific heat capacity of water is 4.18 kilojoules per kilogram kelvin [kJ/(kg K)]. What is the temperature of the water in degrees Celsius [°C] as it exits the boiler? Click the icon to view the table of common derived units in the SI system. Click the icon to view the conversion table. Click the icon to view Sl prefixes (numbers greater than one.) Click the icon to view the factors for temperature intervals conversion. V % 5 Get more help. Search or type URL The temperature is T G B 6 MacBook Pro Y °C. (Round your answer to one decimal place.) H & 7 N U *00 8 M + I ( 9 K < l O < ) O L ▸ Clear all P V : Check answer + [ = 11 ? deleteBerserk - Chapter 2- Read Berserk compressor. reggienet.illinoisstate.edu https://reggienet.illinoisstate.edu/access/content/attachment/f6b18576-acf9-... Hint. Both power-sizing and indexing will be used. Ć + Question 3. The purchase price of a natural gas-fired commercial boiler (capacity X) was $181,000 eight years ago. Another boiler of the same basic design, except with the capacity 1.42X, is currently being considered for purchase. If it is purchased, some optional features presently costing $28,000 would be added for your application. If the cost index was 162 for this type of equipment when the capacity X boiler was purchased and is 221 now, and the applicable cost capacity factor is 0.8, what is your estimate of the purchase price for the new boiler? Hint: Use both indexing and power-sizing methods. 88 Illinois State University: TEC 330 001 FA2022 - Applied Economic Analysis For...