Hi all,
first time poster here.
I want to build a small hot-plate which I can heat from room T (eg 25degC) to about 120degC and then cycle between that and 60~75 degC (I will need to vary this) for several cycles. The material of the hot plate is open; I am currently considering aluminum or brass. The overall size of the area that I need heated is about 30mm square and the plat will have a thickness of ~4mm. I have considered using a resistance (cartridge) element for heating and a water circuit to cool but I don't actually have running water in my "workshop" (at least at the moment....). Hence I am looking at options and considering a peltier heater and am looking for advice....
I have no experience of using these heaters and the kind of questions I have are:
- Would a peltier module be appropriate for this kind of application?
- From RT to maximum temperature I have a deltaT of 95 but I am happy enough if the cold side heats up (from RT) so am I correct in thinking that the deltaT I would need when checking module specs is 60?
- How are such units typically controlled to cycle between 2 temperatures?
- How are such units thermally isolated from their mountings?
I would appreciate any help and guidance you can offer...
Thanks in advance,
sammy
first time poster here.
I want to build a small hot-plate which I can heat from room T (eg 25degC) to about 120degC and then cycle between that and 60~75 degC (I will need to vary this) for several cycles. The material of the hot plate is open; I am currently considering aluminum or brass. The overall size of the area that I need heated is about 30mm square and the plat will have a thickness of ~4mm. I have considered using a resistance (cartridge) element for heating and a water circuit to cool but I don't actually have running water in my "workshop" (at least at the moment....). Hence I am looking at options and considering a peltier heater and am looking for advice....
I have no experience of using these heaters and the kind of questions I have are:
- Would a peltier module be appropriate for this kind of application?
- From RT to maximum temperature I have a deltaT of 95 but I am happy enough if the cold side heats up (from RT) so am I correct in thinking that the deltaT I would need when checking module specs is 60?
- How are such units typically controlled to cycle between 2 temperatures?
- How are such units thermally isolated from their mountings?
I would appreciate any help and guidance you can offer...
Thanks in advance,
sammy