Gaseous nitrogen actuates a Carnot power cycle in which the respective volumes at the four comers of the cycdle starting at the beginning of the isothermal expansion are, V; = 10.10 li, V2 = 14.53 li, V3 = 226.54 li, and Va = 157.73 li. The cycle receives 21.5 kJ of heat. Determine (a) the net work, (b) the mean effective pressure, and (c) the thermal efficiency of the cycle.

Gaseous nitrogen actuates a Carnot power cycle in which the respective volumes at the four comers of the cycdle starting at the beginning of the isothermal expansion are, V; = 10.10 li, V2 = 14.53 li, V3 = 226.54 li, and Va = 157.73 li. The cycle receives 21.5 kJ of heat. Determine (a) the net work, (b) the mean effective pressure, and (c) the thermal efficiency of the cycle.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Consider a cold air-standard Diesel cycle. Operating data at principal states in the cycle are given in the table below. The states are numbered as in Fig. 9.5 with p1 = 100 kPa, T1 = 340 K, and T3 = 4850.3 K, r = 12 and rc = 2. For n = 1.3, cv = 0.718 kJ/(kg-K), and cp = 1.005 kJ/(kg-K), determine the heat transfer during heat addition process per unit mass in kJ/kg.
Brayton cicle Based on a gas turbine with superheat and intercooling, determine: 1) The thermal efficiency (ƞterm), in %. Use the expression ƞterm= 1 –(qL/ qH)2) How does gas turbine intercooling influence thermal efficiency?3) How and why? It is said that the gas turbine cycle with intercooling, reheating and regeneration is close to the Ericsson cycle.
A steam power plant, operating with one regenerative feed water heating at the initial steam conditions of P=35 bar, T=440°C, exhaust pressure at 0.04 bar. Steam is bled from the turbine for feed water heating at a pressure of 1.226 bar. Determine1-Specific heat consumption2- Thermal efficiency of the cycle3- Thermal efficiency of the cycle neglecting regeneration
Based on a gas turbine with superheat and intercooling, determine: 1) The thermal efficiency (ƞterm), in %. Use the expression ƞterm= 1 –(qL/ qH)2) How does gas turbine intercooling influence thermal efficiency?3) How and why? It is said that the gas turbine cycle with intercooling, reheating and regeneration is close to the Ericsson cycle.
6 A reversible power cycle R and an irreversible power cycle I te between the same two reservoirs. Each receives Qy from the hot reservoir. reversible cycle dev elops work Wy while the irreversible cycle develops work W, (a) Evaluate the rate of entropy generation o for cycle I in terms of Wy, Wg and the rature Te of the cold reservoir. (b) Demonstrate that ¢ must be positive.
Rannkin cycle 1_The value of enthalpy at point 1 is ( h1 =?) 2_ value of enthalpy at point 2 is ( h2 =?) 3_ value of enthalpy at point 3 is ( h3 =?) 4_value of enthalpy at point 4 is ( h4 =? 5_ value of steam mass flow rate in kg/s is 6_rate of heat supplied7_ power developed by Turbine (WT) in kW is : 8_ Thermal efficiency of Rankine cycle is:
Consider a cold air-standard Diesel cycle. Operating data at principal states in the cycle are given in the table below. The states are numbered as in Fig. 9.5 with p1 = 100 kPa, T1 = 340 K, and T3 = 4850.3 K, r = 12 and rc = 2. For n = 1.3, cv = 0.718 kJ/(kg-K), and cp = 1.005 kJ/(kg-K), determine T4 in K.
Gaseous nitrogen actuates a Carnot power cycle in which the respective volumes at thefour corners of the cycle, starting at the beginning of the isothermal expansion, are V 1 =10.10, V 2 = 14.53, V 3 = 226.54, V 4 = 157.73 liter, what is the thermal efficiency of thecycle? k=1.399
A new, cold-air-standard cycle operates between 3 states in a piston-cylinder device: ● 1 → 2: constant volume heat addition ● 2 → 3: isobaric expansion ● 3 → 1: compression such that pressure and volume have a linear relationship For this cycle, ?_h = 2?_L, where ?_H is the high pressure and ?_L is the low pressure, respectively, and ?_1 = 1/3?_3a) Draw this cycle on a P-v diagram. b) Find the temperature ratios T_2/T_1 and T_3/T_1
Specific Instruction: i.Drawaschematic diagramof each problem with labels of states of a substance;ii.For uniformity purposes, assign STATE 1 at the inlet of ahigh-pressure turbine.The states must be arranged in a chronologicalorder;iii.Ploteach cycle in a t-s diagramwith the states consistentto the states assignment in the schematic diagram;iv.Show a detailed solution 1.Consider a 200-MW steam power plant that operates on a simple ideal Rankine cycle. Steam enters the turbine at 8MPa and 400 0C and is cooled in the condenser at a pressure of 10 kPa. Determine (a) the quality of the steam at the turbine exit, and (b)themass flow rate of the steam.
An irreversible Stirling cycle containing 5.0 mol of a diatomic idealgas goes through the following series of steps, moving through states a, b, c, d, and back tostate a to complete the cycle:• Step 1 (a → b): Starts in state a: (Pa, Va, Ta) = (40. atm, 5.23 L, 510. K). Expandsisothermally in three irrerversible steps: first against a constant external pressure ofPext = 26.67 atm to an intermediate volume of V ′a = 1.5Va; then further expansionagainst a (new) constant external pressure of Pext = 20.0 atm to another intermediatevolume of V ′′a = 2Va; and finally a further expansion against a (new) constant externalpressure of Pext = 10.0 atm to the final volume of Vb = 4Va.• Step 2 (b → c): Starts in state b: (Pb, Vb, Tb) = (10.0 atm, 20.92 L, 510. K). Undergoesconstant-volume cooling to a final temperature of Tc = 255 K.• Step 3 (c → d): Starts in state c: (Pc, Vc, Tc) = (5.0. atm, 20.92 L, 255. K). Com-presses isothermally in three irrerversible steps: first against a constant…
A gas turbine power plant working on Brayton cycle, Explain the working principle of the cycle with physical diagram as well as P-V and T-s diagrams, and with all the required details