The good news about radiant heating is that it is the most efficient and effective heat delivery system known, and it is compatible with almost any energy source.rnRadiant heating or cooling refers to the transfer of heat energy from one place to another. In essence, it works similar to a...
This is about the second part of the equation mentioned above – using a space heater in an efficient way. But using one electric heater, maybe two, as part of an overall plan to reduce energy use is possible with these guidelines: 1. Turn Down the Central Heat & Use a Space heater ...
根据第一段第一句“What is the single most effective way to reduce greenhouse-gas emissions?"以及后文中的 “The answer is: make air-conditioners better”可知,减少温室气体 的最有效的办法是改善空调的冷却系统。 故选C。 6. A 推理判断题。 根据第二段第一句“Air-conditioning is one of the world...
First. air-conditioners must become much more efficient. The most energy-efficient models on the market today consume only about one-third as much elcctricity as average ones. Minimum energy-performance standards need to be raised, or introduced in countries that lack them altogether. to push ...
OK, we admit, we're a long way from a carbon-free grid—but when we have one, what's the most efficient way to use that energy to fly planes? This question is explored by an interactive tool built by a team of University ...
Although they are both gainfully employed, they fit cleaning jobs into their nights and weekends, which is when their service is in most demand any way. 2019年6月四级真题(第一套)听力 Section A Among common kitchen appliances used for cooking, microwaves are the most energy efficient, followed...
MVHR systems which use a heat exchanger require slightly more power operate than a standard MEV system, but a substantial amount of that cost would be offset against your heating bills because they are highly efficient at retaining heat in the property. In a typical house, the ...
Cycletowork?Noneoftheabove.Theansweris:makeair-conditionersradicallybetter.Ononecalculation,replacingrefrigerants(制冷剂)thatdamagetheatmospherewouldreducetotalgreenhousegasesbytheequivalentof90bntonnesofCO2by2050.Makingtheunitsmoreenergy-efficientcoulddoublethat.Air-conditioningisoneoftheworld'sgreatoverlookedindustries...
Th e most energy-efficient models on th e market today consum e only about one-thir d as much electricity as aver ag e ones .Minimum energy-performanc e standards n e e d to b e rais e d , or introduc e d in countries that lack them altogether, to push th e ave rag e unit...
This uses the standard conversion of 33.7 kWh per gallon of gas, and allows us to understand just how much more efficient an electric car is than a traditional car. Generally speaking, electric cars will always be more efficient than gas powered cars because less electricity is lost to heat ...