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110年 - 110 國立中央大學_碩士班招生考試_能源工程研究所/不分組(一般生):基礎熱力學#103858
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6. (8 %) Explain the difference between heat pump and heat engine.
相關申論題
1. (5 %) Describe an imaginary process that satisfies the first law but violates the second law of thermodynamics.
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(a) Find the COP of a refrigerator that removes heat from the food compartment at a rate of 5040 K/h per kW of power consumption. Also, find the rate of heat rejection to the kitchen.
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(4%) (b) The temperature of outside air, the kitchen and the food compartment is 35℃, 27℃ and 7℃, respectively. What is the maximum COP of this refrigerator?
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3. (6 %) Does a cycle for whichviolate the Clausis inequality? Why?
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4. (8%) Write and explain the expression relates the entropy generation and exergy destruction.
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5. (15%) Describe the thermodynamic principles with its four fundamental components for the air- conditioner. List any three types of air-conditioner which is operated in different thermodynamic cycle.
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(a) a simple ideal steam Rankine cycle,
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(12 %) (b) an ideal steam regenerative Rankine cycle with one open feedwater heater.
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8. (15 %) Sketch schematic diagrams and accompanying T-s diagrams of a two-stage cascade refrigeration. What are the advantages of a cascade system over a single stage system?
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9.(15%)台電大潭電廠採用複循環發電機組複循環發電機組有何優點?什麼?
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相關試卷
110年 - 110 國立中山大學碩士暨碩士專班招生考試_部分碩士班:基礎熱力學#104284
110年 · #104284
110年 - 110 國立中央大學_碩士班招生考試_能源工程研究所/不分組(一般生):基礎熱力學#103858
110年 · #103858
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