y***m
发帖数: 7027 | 1 烧饭烧菜供暖热水....都是电，电很便宜，煤气天然气..很贵么 | A*****s
发帖数: 13748 | 2 盖房的时候，多引一个服务，要多很多钱
【在 y***m 的大作中提到】
: 烧饭烧菜供暖热水....都是电，电很便宜，煤气天然气..很贵么
| y***m
发帖数: 7027 | 3 哦...跟国内还大不一样
【在 A*****s 的大作中提到】
: 盖房的时候，多引一个服务，要多很多钱
| g*****9
发帖数: 4125 | 4 It is not only cheap, but is an extremely flexible form of energy, avail
everywhere, clean and safe.
烧饭 you have electric rice cooker, I have not seen a gas version yet
烧菜 you have induction cook top, that is twice as efficient as gas cooking
(that is not even cosidering in summer time you have use electricty to cool
down the air caused by gas cooking)For chinese people this very powerful
heating is also hard to achieve with gas.
供暖 electric heating is by far the most efficient way to heat up a
【在 y***m 的大作中提到】
: 烧饭烧菜供暖热水....都是电，电很便宜，煤气天然气..很贵么
| y***m
发帖数: 7027 | 5 哦，国内时能用煤气的都不用电,尤其供暖,不过电确实省事很多...
cooking
cool
or
【在 g*****9 的大作中提到】
: It is not only cheap, but is an extremely flexible form of energy, avail
: everywhere, clean and safe.
: 烧饭 you have electric rice cooker, I have not seen a gas version yet
: 烧菜 you have induction cook top, that is twice as efficient as gas cooking
: (that is not even cosidering in summer time you have use electricty to cool
: down the air caused by gas cooking)For chinese people this very powerful
: heating is also hard to achieve with gas.
: 供暖 electric heating is by far the most efficient way to heat up a
| b*****n
发帖数: 10665 | 6 是吗？奇怪，人家都说用电的HEATING很花钱。
cooking
cool
or
【在 g*****9 的大作中提到】
: It is not only cheap, but is an extremely flexible form of energy, avail
: everywhere, clean and safe.
: 烧饭 you have electric rice cooker, I have not seen a gas version yet
: 烧菜 you have induction cook top, that is twice as efficient as gas cooking
: (that is not even cosidering in summer time you have use electricty to cool
: down the air caused by gas cooking)For chinese people this very powerful
: heating is also hard to achieve with gas.
: 供暖 electric heating is by far the most efficient way to heat up a
| g*****9
发帖数: 4125 | 7 The coefficient of performance or COP (sometimes CP), of a heat pump is the
ratio of the change in heat at the "output" (the heat reservoir of interest)
to the supplied work.
a typical air-source heat pump has a COP of 3 to 4, whereas a typical
electric resistance heater has a COP of 1.0. That is, one joule of
electrical energy will cause a resistance heater to produce one joule of
useful heat, while under ideal conditions, one joule of electrical energy
can cause a heat pump to move much more t
【在 b*****n 的大作中提到】
: 是吗？奇怪，人家都说用电的HEATING很花钱。
:
: cooking
: cool
: or
| G****6
发帖数: 4291 | |
|
