Figure 1 shows a number of components connected in series, all operating at steady state. Liquid...
1. (20 points) Consider a cogeneration system operating at steady state. Superheated steam enters the first turbine stage at 6 MPa, 540 °C. Between the first and second stages, 45% of the steam is extracted at 500 kPa and diverted to a process heating load of 5 x 108 kl/h. Condensate exits the process heat exchanger at 450 kPa with specific enthalpy of 589.13 kl/kg and is mixed with liquid exiting the lower pressure pump at 450 kPa. The entire...
1. (20 points) Consider a cogeneration system operating at steady state. Superheated steam enters the first turbine stage at 6 MPa, 540 °C. Between the first and second stages, 45% of the steam is extracted at 500 kPa and diverted to a process heating load of 5 x 108 kl/h. Condensate exits the process heat exchanger at 450 kPa with specific enthalpy of 589.13 kl/kg and is mixed with liquid exiting the lower pressure pump at 450 kPa. The entire...
Tutorial Questions 1.1. Water is the working fluid in an ideal Rankine cycle. The condenser pressure is kPa, and saturated vapor enters the turbine at 10 MPa. Determine the heat transfer rates, in kJ per kg of steam flowing, for the working fluid passing through the boiler and condenser and calculate the thermal efficiency.2. Water is the working fluid in an ideal Rankine cycle. Saturated vapor enters the turbine at 16 MPa, and the condenser pressure is 8 kPa ....
V6.23 Figure P6.23 shows a Carnot heat pump cycle operating at steady state with ammonia as the working fluid. The condenser tem perature is 49°C, with saturated vapor entering and saturated liquid exiting. The evaporator temperature -12°C a. Determine the heat transfer and work for each process, in kJ/kg of ammonia flowing. o56, 73 kJ b. Evaluate the coefficient of performance for the heat pump. 5, c. Evaluate the coefficient of performance for a Carnot refrigeration cycle operating as shown...
Thermodynamics
1. Saturated liquid H20 at 16 MPa is fed into the boiler of a variant of a Carnot cycle (but simplified Rankin cycle) where the working fluid is not an ideal gas. Saturated H20 vapor is fed into the turbine of the same turbine. The condenser of this turbine is operated at 8 kPa. The mass flowrate of the H20 in this cycle is 7.2x103 kg/min. Draw the path of this process on T-s diagram. Estimate the thermal efficiency...
A palm oil mill plant owned by Slime Karby Plantations Sdn Bhd has been operating under low efficiency and performance of its boiler and turbine. Its Chief Technical Officer has employed you to review the plant and submit a proposal on how the performance of the plant can be improved. Currently, the plant operates in a simple Rankine cycle manner. The source of raw water for boiler is pumped from the Klang River to a reserve pond. Superheated steam generated...
Refer to Figure 3 (below), depicting a regenerative Rankine cycle with a closed feedwater heater (CFWH) when considering the following system description. Saturated liquid water at a pressure of P before entering the CFWH. 12 kPa is pumped to a pressure of Pi-5 MPa After leaving the CFWH as a saturated liquid, the water continues to a Steam Generator which heats the water to a temperature of Ts 600°C. This superheated steam is used to drive a Turbine. A quantity...
PLEASE ANSWER #6
PLEASE ANSWER #6
Figure 1 presents a seawater cooled steam ejector refrigeration/Heat Pump System for Naval Surface Ship Applications. A Steam Ejector Refrigeration System is thermally driven heating and cooling technology by changing the pressure to control the boiling temperature which will enhance evaporation of fluid to realize cooling purpose. A heat pump system is to utilize the phase change of fluids to realize heating and cooling purpose. Please answer following questions: exhaust gas boiler nozzle section...
1. Exhaust gas at 400 C and 1 bar from i engines flows at the rate of 125 mol s into a waste-heat boiler where saturated steam in generated at a pressure of 1200 kPa. Water enters the boiler at 20 C (Ta) and the exhaust gases are cooled to within 10°C of the steam temperature. The heat capacity of the exhaust gases is C/R-3.341.12x10 T/K. The steam flows into an adiabatic turbine and exhausts at a pressure of 25...
5.(14 marks total) The sketch shows a system for producing superheated steam from hot liquid water. A steady flow of saturated liquid water enters at 1 at a pressure of P, = 200 kPa and passes through a valve which reduces the pressure to P, = 100 kPa. The resulting mixture enters a separation tank, from which saturated vapour at 4 flows out to a compressor which compresses it to Ps = 300 kPa, while saturated liquid at 3 is...