Subtopic: Definition & Characteristics
– Major appliances are non-portable or semi-portable machines for routine housekeeping tasks.
– Common tasks include cooking, washing laundry, and food preservation.
– Often referred to as “white goods,” originally due to traditional white color.
– Differ from small appliances in size and portability; considered fixtures in real estate.
– May require special electrical, gas, plumbing, or ventilation connections.
Subtopic: Energy Efficiency
– Major appliances consume significant energy, prompting efficiency improvement programs.
– Energy-efficient refrigerators use 40% less energy compared to 2001 models.
– Replacement of old appliances could save 20 billion kWh annually in Europe.
– In the US, replacing older appliances could save 17 billion kWh of electricity.
– Modern power management systems reduce idle energy consumption by switching appliances to low-energy modes.
Subtopic: Impact on Emissions
– Efficient appliance replacement is a key measure to reduce greenhouse gas emissions.
– Potential reduction of 18 billion kg CO2 emissions in Europe through appliance upgrades.
– Corresponding US reduction estimated at 27 billion lbs (1.2 billion kg) CO2.
– Energy-efficient air conditioners significantly impact peak demand during hot afternoons.
– Dishwashers have minimal impact on peak demand, using more energy in late evenings.
Subtopic: Technological Advances
– Transition from silicon switches to gallium nitride transistors enhances energy efficiency.
– Gallium nitride transistors are more costly but contribute to lower carbon footprints.
– Advancements in control systems improve energy management in appliances.
– Continuous innovation in appliance design focuses on energy conservation.
– Emerging technologies aim to further reduce energy consumption in households.
Subtopic: Related Concepts
– Small appliances serve different functions and are generally portable.
– Domestic technology encompasses various tools for home management.
– Home automation (domotics) integrates appliances into smart home systems.
– E-waste concerns arise from disposal of outdated appliances.
– Lists available include cooking appliances, home appliances, and stoves. https://en.wikipedia.org/wiki/Major_appliance
