Conservation And Management Of Energy Resources
Muhtasari
The cleanest unit of energy is the one you never use. As the world's demand for power climbs and fossil reserves shrink, simply building more power stations is not enough. We also have to use energy far more carefully and find new, cleaner ways to produce it. From insulating a roof to switching to an electric car, from energy-efficient fridges to brand-new hydrogen fuels, the choices we make now decide how long our resources will last.
In this lesson you will learn the main strategies for conserving and managing energy: reducing consumption, insulation, efficient devices, education, transport policy and battery storage. You will also study the newest energy technologies, blue and green hydrogen and ground and air source heat pumps, and weigh the benefits and limitations of each approach, using the Passivhaus low-energy building standard as a real example.
Malengo
- 1.5.1 Describe strategies for the management of energy resources, limited to: (a) reducing consumption (b) insulation (c) energy-efficient devices including vehicles and electrically propelled vehicles (d) exploiting existing energy resources (e) education on energy conservation (f) transport policies (g) battery storage (h) development of new energy resources.
- 1.5.2 Describe the development of new energy resources, limited to: (a) blue hydrogen fuel: produced from natural gas (b) green hydrogen fuel: produced using renewable resources (c) ground source heat pumps: transfer of heat from the ground for heating (d) air source heat pumps: transfer of heat from the air for heating.
- 1.5.3 Discuss the benefits and limitations of strategies for the management of energy resources.
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Hongera kwa kukamilisha somo la Conservation And Management Of Energy Resources. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- Where is the most heat usually lost from a building? A. The floor B. The roof C. The doors D. The chimney Answer: B
- Green hydrogen is produced by: A. Burning coal B. Splitting water using renewable energy C. Refining natural gas D. Fermenting sugar cane Answer: B
- A ground source heat pump provides heating by: A. Burning gas underground B. Transferring heat from the ground into a building C. Generating electricity from hot rocks D. Storing electricity in batteries Answer: B
- Which strategy makes variable renewable electricity more reliable? A. Cavity wall insulation B. Battery storage C. Double glazing D. Education campaigns Answer: B
- Which of these is a limitation of blue hydrogen? A. It produces no usable energy B. It is made from natural gas, a fossil fuel C. It cannot be transported D. It can only be used in vehicles Answer: B
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