sbradford26

67 ms·

91.
by sbradford26 4y ago
Only small correction to that is that load center doesn't step down voltage. The center tapped transformer at the street steps down the voltage to 240V, but then that center tap on the transformer becomes your neutral so you end up wit
92.
by sbradford26 4y ago
So that 380V would be for 3 phase to a home which is not always the case. There are plenty of homes in Europe that only have single phase to the house which is at 230V.
93.
by sbradford26 4y ago
Services to the US are at 240V they just utilize a center tap transformer to allow two different 120v legs. So that 200 amp service is 200 amps at 240V so approximately 48kW.
94.
by sbradford26 4y ago
Services to the US are at 240V though they just utilize a center tap transformer to allow two different 120v legs. So that 200 amp service is 200 amps at 240V so approximately 48kW. Largely US homes have bigger feeds in because the US has s
95.
by sbradford26 4y ago
Yeah an induction range most likely wouldn't require any more power than a resistive range. The only caveat to that is that higher end ranges might have higher power draws due to having more burners and such and induction ranges tend t
96.
by sbradford26 4y ago
It definitely depends on the situation. Most likely if we had kept our current range getting a properly range hood would have been the cost of a new hood and 6 feet of insulated duct. If I went with a cheap hood that would be under $100. Bu
97.
by sbradford26 4y ago
Ahhh didn't realize they were reversible like that. Makes sense that those would cause issues.
98.
by sbradford26 4y ago
Basically any cast iron pan should work. Also the bottom of the pan doesn't need to be perfectly flush with the glass. I know people who leave silicone mats on their induction cooktops while cooking so that their cast iron pans don&#x2
99.
by sbradford26 4y ago
There are induction cooktops that have knobs. I believe one of the Frigidaire professional models has knobs on it. I think the main reason why induction cooktops typically don't have buttons is because it allows the surface to be used
100.
by sbradford26 4y ago
I personally am switching from a propane range to a induction cooktop as we speak, but saying induction is cheap to retro fit is definitely a stretch. My scenario is an unfinished basement below the kitchen and a really short electrical run
101.
by sbradford26 4y ago
Largely it is because you don't have to pay for delivery. It is very similar to having a well. If the water is available at your house already it is most likely cheaper to just pump it versus paying someone to supply water to your hous
102.
by sbradford26 4y ago
Soon the 777x will be out which should be the one to beat then. Last I saw they were running into some issues with the GE9x engines which are massive.
103.
by sbradford26 4y ago
That is definitely an issue that is out there. Sadly cheap builders try and get away with a single return per floor in a house which is simply not enough. My point is mostly that forced air versus hydronic isn't what causes a differenc
104.
by sbradford26 4y ago
Forced air and radiators dry the air equally. Steam radiators sometimes can add humidity to the air it is limited and only when they are initially heating up before the valve closes. What causes dry air in the winter is the act of heating a
105.
by sbradford26 4y ago
Bitcoin uses approximately 130 TWh annually. The US residential electricity usage from 2018 (latest I could find) was 1,461 TWh. So 1461 * 6% you get 87.66 TWh annually for drying clothes. Thankfully we can address energy waste in many diff
106.
by sbradford26 4y ago
That is mostly true about regenerative braking as well. Once you hit a certain speed the vehicle has to use some energy to get the motors to actually stop the vehicle. Usually EVs and such will just rely on the friction brakes for the last
107.
by sbradford26 4y ago
Redundancy doesn't mean it will bring the car to a stop as quickly as hydraulic brakes, it is just another means to bring the car to a stop safely. From personal experience I could safely get my car to a stop in many situations without
108.
by sbradford26 4y ago
So the fly by wire just means it is digital control to the hydraulic actuator instead of a physical cable running from the yoke or something to the actuator. They have not gotten rid of hydraulic actuators yet, they are working do that in t
109.
by sbradford26 4y ago
So a fly by wire aircraft might not have physical cable moving surfaces, but most of them have a backup mode that relies basically entirely off of physical switches and direct communication with the surfaces. Those modes are only used in e
110.
by sbradford26 4y ago
I don't deny that there can be physical failures to the systems. And I also drive a hybrid currently that most of the time only uses the electric motor for slowing down, I don't find using the motor for braking scary. I personally
111.
by sbradford26 4y ago
This can only be done with permanent magnetic motors which is not the norm for EVs for many reasons. In a non permanent magnetic motor on loss of power there is no energy to dump into braking resistors since the motor is not causing any res
112.
by sbradford26 4y ago
Hold up capacitors definitely could extend the length of time the brakes would work but it would depend on what the power failure was and how long you need to brake. A mechanical fail safe just seems like a worse version of hydraulic brakes
113.
by sbradford26 4y ago
So looking into it a bit there are what is called Eddy current brakes. In the section of disk eddy current brakes it talks about the power tool implementation where there is just a metal disk and the magnetics are pulled away from the disk
114.
by sbradford26 4y ago
So a big reason why this probably wouldn't fly is that it has a common mode failure which is loss of power. Most EVs don't use permanent magnetic motors so it needs power to be able to use the motors for regen. So lets say the rel
115.
by sbradford26 4y ago
So my wife owns a 2017 Kia Niro and I have a 2017 Hyundai Ioniq. The cars have the same drive train and the infotainment systems and controls are similar but there are small differences between the two of them. For one both cars have dials
116.
by sbradford26 4y ago
I am in southern NH and recently went to a cold weather heat pump system. We had an oil boiler before hand so I had all new duct work added in the basement with an air handler and 3 mini split heads in the rooms upstairs. I got quotes for m
117.
by sbradford26 4y ago
My favorite is every article about the Ford Maverick people would comment how they want a single cab long bed truck. Ford and Chevy still make those vehicles and regular consumers simply don't buy them.
118.
by sbradford26 4y ago
Electric motor controls have been around a very long time. That isn't to say they haven't gotten better but I would say the largest part of the motor controllers that requires sophistication is regenerative braking and such. But j
119.
by sbradford26 4y ago
Given they were invented around the same time a combustion engine and electric motor take a similar level of technology to create. They require a certain level of machining and material sciences. The biggest changes that have occurred is in
120.
by sbradford26 4y ago
The vehicle you could make with a "Black smiths forge" would be barely functional by todays standards. If your standard is something that converts stored energy into motion EVs and ICE takes similar levels of technology to impleme

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