A geothermal resource/aquifer has been tested and confirmed to continuously produce saturated liquid water at 230°C. It is desired to construct a 60 MW geothermal power plant, which will utilize this resource. Two designs are proposed: a) a single flash unit and b) a dual-flash unit. A nearby cooling pond may supply sufficient cooling water to keep the condenser of the plant at 40°C. For the two types of units under consideration calculate: a) The total amount of steam that needs to be produced. b) The total amount of water the wells must provide. c) If each well produces 60 kg/s of water, what is the

A geothermal resource/aquifer has been tested and confirmed to continuously produce saturated liquid water at 230°C. It is desired to construct a 60 MW geothermal power plant, which will utilize this resource. Two designs are proposed: a) a single flash unit and b) a dual-flash unit. A nearby cooling pond may supply sufficient cooling water to keep the condenser of the plant at 40°C. For the two types of units under consideration calculate: a) The total amount of steam that needs to be produced. b) The total amount of water the wells must provide. c) If each well produces 60 kg/s of water, what is the

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.75P: Referring to Problem 1.74, how many kilograms of ice can a 3-ton refrigeration unit produce in a...

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1. A steam turbine system has a boiler pressure of 40 bar and the emergent steam is superheated to 500°C. The condenser pressure is 0.04 bar. If the expansion and compression stages have ideal efficiency, (i) What is the thermal efficiency, dryness fraction and specific steam consumption of the cycle considered, If the cycle is having one reheat stage to the superheat temperature? What is the thermal efficiency, dryness fraction and specific steam consumption of the cycle considered, if the cycle is having one bleed point (open heater) at the pressure where the steam become saturated after first expansion? (ii)
create a diagram of the geothermal energy flow in a geothermal power plant.
The main purpose of this assignment is for you to think about the 3rd type: the "binary cycle" geothermal power station. It's the design used when the well brings up water that isn't extremely hot, but "regular hot" (generally between 100 and 180 degrees Celsius). Binary cycle is similar to the other two types in one way: after the hot water has transferred its energy, it is recycled by being pumped deep into the ground (study the diagram). What is the name of the part that returns the water to the ground? * Binary Cycle Power Plant Load Turbine Generator Heat exchanger with working fluid Rock layers Production well Injection well
A power plant delivering 900 MWe has an efficiency of 30% with 15 percent of the waste heat being released to the atmosphere as stack heat and the other 85 percent taken away in the cooling water. This plant uses an evaporating cooling tower wherein heat is released to the atmosphere as cooling water is vaporized. Evaporative cooling Stack heat River Makeup water a. What is the total amount of heat supplied to the power plant (in MW)? Round off your answer to the nearest whole number. b. If the temperature of the makeup water from the river is 15 C, at what rate (in m3/s) should water be withdrawn to offset the water lost in the cooling tower? Heat of vaporization of water at 15 C is 2,465 kJ/kg. Round off your answer to two (2) decimal places
Pls. Answer thank you! A logging firm in Isabella operates a Diesel Electric Plant to supply its electric energy requirements. During a 2 hour period, the plant consumed 250 gallons of fuel at 80°F and produced 2900 kW-hrs. Industrial fuel is used at 30°API and was purchased at P30/li at 60°F. Determine the overall thermal efficiency in percent of the plant.
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Use the information below to answer the questions that follow: A boiler that supplies the steam turbine of a Carnot cycle must raise the temperature of 20 m³ water from the 35°C through a physical change of phase, into steam at 175°C. The carnot engine is 40% efficient. a) Calculate the mass of the water at 35°C and the mass of steam generated. b) Determine the total heat energy (in kJ) that must be supplied to the boiler to generate the steam c) If the heat supplied to the boiler is 60,000 kJ: determine the work output from the cycle. d) The pressure of steam at 175°C is 9 bars. If the pressure is reduced isothermally to 7 bars, what will be the phase ?
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Imagine that today is your first day on the job, and that from now on you will be the engineer responsible for a thermal machine. The machine operates according to the cycle below, functioning as a Rankine cycle. Figure 1. T-S diagram of the Rankine cycle. As a good engineer, you already know that, in order to know how a machine works, it is necessary to know its operating conditions. The boiler operates at a constant pressure equal to 8600 kPa and generates water vapor whose temperature is 400 °C. When passing through the turbine, the steam is expanded isetropically and enters the condenser as a two-phase mixture with a title equal to 0.80. The fluid is condensed at a constant pressure of 10 kPa, and then compressed isentropically, so that the fluid enters the boiler as a subcooled liquid. According to the information given above, determine: a) The change in internal energy (ΔU) and the change in entropy (ΔS) of the cycle. b) The net work recognized by the cycle (WNet). c) The thermal…
QUESTION 1 A manufacturer conducted an experiment for an evaporator capacity 533 kW cooling and designed for high COP of 1.8 when using lithium bromide plus water in an absorption refrigeration system. The evaporator operates 20 C, condenser 40 C & absorber 45 C supplying 1.4 kg/s of water plus lithium bromide solution to the generator. For a condenser size of 608 kW, determine: Heat provided by the generator & absorber capacity in kW (equating overall heat balance of all heat exchanger). Show in the Solution Paper: Heat provided by the generator Provide in the Answer Box: Absorber Capacity in kW Answer in two decimal places
Design a Rankine water-steam power plant consisting of a maximum of 1 reheat cycle and 1 open feed water heater with the following limitations.The maximum pressure-temperature relationship for the boiler is illustrated in the graph below.P_Cond is limited to between 30 kPa and 1 standard atmosphere.What is the greatest efficiency ?Whats the schematic and T-s phase/state diagram?
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.