You have a geothermal source of energy where you can access 100 L/s of hot water...
You have a geothermal source of energy where you can access 100 L/s of hot water at 90oC. If you operate a heat engine that operates at 70% of the maximum theoretical efficiency of a heat engine, how much energy could be produced in 1 year? Assume that the heat engine can use the nearby ocean (8 oC) as its cold source (4 marks)?
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You have a geothermal source of energy where you can access 100
L/s of hot water...
A geothermal source provides water at 400°F, 140 psia to a heat exchanger that boils an...
A geothermal source provides water at 400°F, 140 psia to a heat exchanger that boils an organic liquid. Condenser cooling water is available at 70°F and there is a 10°F ∆T across the condenser (which is a second counterflow heat exchanger) at the cooling water inlet. (a) If the minimum allowable ∆T across the geothermal water heat exchanger is 15°F, what is the maximum theoretical thermodynamic efficiency that could be expected of such a cycle? (b) How many cubic feet...
In Geothermal-steam power cycle, the source of heat is the hot water from well. The heat...
In Geothermal-steam power cycle, the source of heat is the hot
water from well. The heat exchanger receive hot water at Tg1= 105
oC and the water leaves at 40 oC as shown in Figure 3. Steam exits
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Saturated liquid water exits the condenser at 1 bar. The plant
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of 0.95. The isentropic efficiency of...
Question 12 1 pts Suppose you have access to a pipe of flowing hot water at...
Question 12 1 pts Suppose you have access to a pipe of flowing hot water at 100° C and a second pipe of flowing cold water at 0° C. What is the efficiency of most efficient heat engine possible? 21.1% 31.3% 13.2% 27.3%
You are hired to build a geothermal power plant that absorbs heat from a hot water...
You are hired to build a geothermal power plant that absorbs heat from a hot water spring and discards heat into the surrounding air, which is at a temperature of 28°. The plant is designed for a maximum (Carnot) efficiency of 0.15. What is the temperature, in degrees Celsius, of the hot water gushing from the spring?
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Question 12 PHYSICS 120 (a) Carefully explain the difference between irreversible and reversible processes. Also explain...
Question 12 PHYSICS 120 (a) Carefully explain the difference between irreversible and reversible processes. Also explain what the second law of thermodynamics dictates about reversible processes. (You may find it helpful to compare water freezing at 0 °C and super- cooled water freezing at-5 °C.) [5 marks A heat engine operates with an efficiency n = 0.30 between two energy reservoirs at temperatures of 450 K and 293 K. The engine does 90 J of work per cycle. (b) Draw...
An experimental power plant at the Natural Energy Laboratory of Hawaii generates electricity from the temperature gradient of the ocean. The surface and deep-water temperatures are 30 ∘C and 5 ∘C, res...
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Israel utilizes solar ponds to produce ‘green’ energy. In a solar pond, the Sun’s energy is...
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l kg of water for a party, and only have 5 minutes to do it. Relying on nothing es, a dixicup, duct tape and a piece of string, you manage to build a refrigerator but your keen physical ab...
l kg of water for a party, and only have 5 minutes to do it. Relying on nothing es, a dixicup, duct tape and a piece of string, you manage to build a refrigerator but your keen physical abiliti unit which can do the job. The temperature inside the refrigeration unit is 273 K, and the temperature outside is 350 K. Since you area brilliant UIUC student, assume that your refrigerator has the maximum possible efficiency. The Latent Heat o...
In Geothermal-steam power cycle, the source of heat is the hot
water from well. The heat exchanger receive hot water at Tg1= 105
oC and the water leaves at 40 oC as shown in Figure 3. Steam exits
the boiler at 40 bar, 300 oC, and it exits the turbine at 1 bar.
Saturated liquid water exits the condenser at 1 bar. The plant
operate to generate 20 MW electric power with generator efficiency
of 0.95. The isentropic efficiency of...
Question 12 1 pts Suppose you have access to a pipe of flowing hot water at 100° C and a second pipe of flowing cold water at 0° C. What is the efficiency of most efficient heat engine possible? 21.1% 31.3% 13.2% 27.3%
Question 12 PHYSICS 120 (a) Carefully explain the difference between irreversible and reversible processes. Also explain what the second law of thermodynamics dictates about reversible processes. (You may find it helpful to compare water freezing at 0 °C and super- cooled water freezing at-5 °C.) [5 marks A heat engine operates with an efficiency n = 0.30 between two energy reservoirs at temperatures of 450 K and 293 K. The engine does 90 J of work per cycle. (b) Draw...
l kg of water for a party, and only have 5 minutes to do it. Relying on nothing es, a dixicup, duct tape and a piece of string, you manage to build a refrigerator but your keen physical abiliti unit which can do the job. The temperature inside the refrigeration unit is 273 K, and the temperature outside is 350 K. Since you area brilliant UIUC student, assume that your refrigerator has the maximum possible efficiency. The Latent Heat o...
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