AaBbCcDd AaBbCcDd AaBbC AaBbCcC AaBAaBbCcD AaBbCcDd AaBbI Normal 1 No Spac. Heading 1 Heading 2TitleSubtitleSubtle Em. Emp-ParagraphStylesThere 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.4- An official realizes that the outlet temperature of the groundwater is too high and is consideringusing it to generate electricity. Design an Organic Rankine Cycle (ORC) suitable for this purpose.(Ctrl)

Given data, T0=100°Cη=0.9need to determine the power required.

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.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The following image describe a single-flash geothermal power plant. We have the follow informations about the system: The flash chamber (throttling valve) is a isenthalpic device The system is adiabatic The power generated by the turbine is 10kW The pressure and temperature at point 4 are 50 kPa and 100°C respectively The pressure at separator is 500 kPa The separator has the function of separating the phases of a saturated mixture The mass that exits the system through the separator is 5 times the mass that exits the turbine. The pressure at point 1 is 1 MPa If all the information is sufficient, fill in the table below and plot all the points on a T x v graph.
A large University uses a cogeneration power plant for generating electricity for the university and steam for making hot water and heating buildings. They use a turbine which allows for removing steam. What kind of plant is this? Supercritical plant Back-pressure plant Regenerative plant Carbon storage plant Extraction plant
T B A D Consider the cycle in the diagram (very similar to the Rankine Cycle) using water as the working fluid. Process A-B: A saturated mixture of water is pumped from low pressure to a high pressure saturated liquid in an iso-entropic (and adiabatic) process. Process B-C: The high pressure saturated liquid enters a boiler where it is heated at constant pressure process by an external heat source to a super-heated vapor. Process C-D: The super-heated vapor goes through a turbine, generating power exiting as a saturated vapor. Assume an iso-entropic (and adiabatic) process and neglect kinetic energy and potential energy changes. Process D-A: The saturated vapor then enters a condenser where it is condensed at a constant pressure process back to its original state. The boiler operates at 10 MPa (points B & C) and the condenser operates at 100 kPa (points A & D). Assume a mass flow rate of 1 kg/s. a) Make a table of the temperature, pressure, volume, internal energy, enthalpy, entropy…
Consider a steam power plant, which can be modeled using the ideal reheat Rankine cycle. The steam entering the high- pressure turbine is at 6 MPa and 400 degrees C and leaves at 2 MPa. The steam is then reheated to 400 C at constant pressure, before it expands to 20 kPa in the low-pressure turbine. Calculate: (a) the turbine work output in kJ/kg (b) the thermal efficiency of the cycle
Ocean thermal energy conversion (OTEC) plants use the temperature difference in the ocean (80°F at the surface and 40°F at 2000 ft. depth) in a Rankine cycle to generate electricity. Ammonia is the working fluid. Ammonia is boiled using the 80°F surface water, and condensed against the 40°F deep water, which is pumped to the surface. Very large heat exchangers are required, due to the small LMTDs and the low plant thermal efficiency (2.5%). The heat exchangers will comprise 40 % of the plant cost. In order to reduce the condenser cost, we will evaluate the condenser tube material savings provided by the use of a vertical fluted "Gregorig" condensing surface. The reference smooth tube condenser design uses 1.0 in. I.D. aluminum tubes, 0.062 in. wall x 30 ft. long. Sea water flows on the tube-side at 8 ft/sec. Ammonia condenses at 50°F on the outer surface of the vertical tubes with 4Tvs = 4°F. The ammonia properties at 48°F are: p= 39.1 lbm/ft³, k₁= 0.307 Btu/hr-ft- °F, и 1.426 × 10-2…
1. Determine the Rankine efficiency of a condensing steam turbine operating in a Rankine cycle as follows: Steam pressure - 200 psiaSteam temperature - 1000 FExhaust pressure - 2 in Hg absoluteSteam rate - 1.5 lb/kW-hr 2. If the no. 1 problem has a thermal efficiency of 30%, how many barrels of 30 °API fuel oil will be required to produce 1000 kW-hr of power. Neglect the pump work.
T B A D Consider the cycle in the diagram (very similar to the Rankine Cycle) using water as the working fluid. Process A-B: A saturated mixture of water is pumped from low pressure to a high pressure saturated liquid in an iso- entropic (and adiabatic) process. Process B-C: The high pressure saturated liquid enters a boiler where it is heated at constant pressure process by an external heat source to a super-heated vapor. Process C-D: The super-heated vapor goes through a turbine, generating power exiting as a saturated vapor. Assume an iso-entropic (and adiabatic) process and neglect kinetic energy and potential energy changes. Process D-A: The saturated vapor then enters a condenser where it is condensed at a constant pressure process back to its original state. The boiler operates at 8 MPa (points B & C) and the condenser operates at 200 kPa (points A & D). Assume a mass flow rate of 1 kg/s. Make a table of the temperature, pressure, volume, internal energy, enthalpy, entropy and…
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A 283-MW steam power plant operates on the Rankine cycle but with turbine and pump efficiencies of 90%. The steam enters the turbine at 10,000 kPa and 550°C. It discharges to the condenser at 50 kPa. Determine the thermal efficiency in percent.

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