Câu hỏi:
22/08/2021 1,211Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.
Geothermal energy offers enormous potential for direct, low-temperature applications. Unlike indirect applications, this new technology relies on the Earth's natural thermal energy to heat or cool a house or multifamily dwelling directly without the need to convert steam or other high-temperature fluids into electricity, using expensive equipment.
A geothermal system consists of a heat pump and exchanger plus a series of pipes, called a loop, installed below the surface of the ground or submerged in a pond or lake. Fluid circulating in the loop is warmed and carries heat to the home. The heat pump and exchanger use an electrically powered vapor-compression cycle - the same principle employed in a refrigerator - to concentrate the energy and to transfer it. The concentrated geothermal energy is released inside the home at a higher temperature, and fans then distribute the heat to various rooms through a system of air ducts. In summer, the process is reversed: excess heat is drawn from the home, expelled to the loop, and absorbed by the Earth.
Geothermal systems are more effective than conventional heat pumps that use the outdoor air as their heat source (on cold days) or heat sink (on warm days) because geothermal systems draw heat from a source whose temperature is more constant than that of air. The temperature of the ground or groundwater a few feet beneath the Earth's surface remains relatively stable – between 45°F and 70°F. In winter, it is much easier to capture heat from the soil at a moderate 50°F than from the atmosphere when the air temperature is below zero. Conversely. in summer, the relatively cool ground absorbs a home's waste heat more readily than the warm outdoor air.
The use of geothermal energy through heat-pump technology has almost no adverse environmental consequences and offers several advantages over conventional energy sources. Direct geothermal applications are usually no more disruptive of the surrounding environment than a normal water well. Additionally, while such systems require electricity to concentrate and distribute the energy collected, they actually reduce total energy consumption by one-fourth to two-thirds, depending on the technology used. For each 1,000 hones with geothermal heat pumps, an electric utility can avoid the installation of 2 to 5 megawatts of generating capacity. Unfortunately, only a modest part of the potential of this use for geothermal energy has been developed because the service industry is small and the price of competing energy sources is low
The passage implies that a rise in cost of conventional energy would have what effect?
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Câu hỏi trong đề:
Bộ đề thi Tiếng anh THPT Quốc gia năm 2022 có lời giải (30 đề) !!
Sách mới 2k7: Tổng ôn Toán, Lí, Hóa, Văn, Sử, Địa…. kỳ thi tốt nghiệp THPT Quốc gia 2025, đánh giá năng lực (chỉ từ 110k).
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Trả lời:
Giải bởi Vietjack
Kiến thức: Đọc hiểu
Giải thích:
Đoạn văn ngụ ý rằng sự gia tăng chi phí năng lượng thông thường sẽ có tác động gì?
- Giảm chi phí cho hệ thống sưởi và làm mát bằng địa nhiệt
- Tăng sự phụ thuộc vào công nghệ địa nhiệt trực tiếp
- Sự chuyển hướng sang việc sử dụng các nguồn năng lượng thông thường
- Giảm số lượng ngôi nhà sử dụng hệ thống sưởi bằng địa nhiệt
Thông tin: Unfortunately, only a modest part of the potential of this use for geothermal energy has been developed because the service industry is small and the price of competing energy sources is low.
Tạm dịch: Thật không may, chỉ một phần tiềm năng khiêm tốn của việc sử dụng năng lượng địa nhiệt này đã được phát triển bởi vì ngành dịch vụ thì nhỏ và giá của các nguồn năng lượng cạnh tranh khác thì thấp.
Chọn B
Nhà sách VIETJACK:
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