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Select Forum Build Rocket stove - rocket stove "Cultivate" Feeding "Site" Sphere: Ecology Network "The coffee shop Forum Home> Eco-Building Forum> Rocket stove - Rocket Stove New Reply heater exchangers and solar Rocket Glycol? PtiteNana 02/08/2015 3:47 p.m. (Read 657 times)
Hello. Following on from my folder named "Dragon", I look at the double heats water by the Rocket, and solar (which would be home made) and I have a question on the heat exchangers. I understood that he had two: one connected to the Rocket and connected to the solar panel but ... This solar contains glycol so that it does not freeze in winter. And that of the Rocket, it is how? It is the water balloon that rises and falls or he puts glycol too? Maid thank you Nana Mother to a Dragon
Hello, glycol prevents freezing, if there is no danger of frost on the Rocket Circuit hot water tank, no need glycol! Moreover the heat capacity of water is higher than that of alcohol oil spill (glycol is an alcohol-based antifreeze), thus the heat exchange efficiency is improved with with water (there oil spill no better materials than water specific heat capacity, oil spill ability to accept calorie per unit mass). To be discussed with a yield of passionate heating, it also called for a solar water heater with circulator that put water panels for heating and when danger of frost or overheating stop and automatic drain serving the panels. These panels oil spill turn to pure water: results oil spill better performance and no need to sink expansion which balance against the purchase of a circulator, however it becomes oil spill dependent on electricity.
Yes, I did some research on the internet and the pump does not interest me, my goal is to be independent on maximum points and minimize max energy dependencies. I am looking for simple systems oil spill that are effective and efficient. We could also keep the water in the solar panel but it would drain the think before winter ... And that's not necessarily won The expansion tank is necessary or not? I do not see what it is.
Hi, drain all the signs of winter it would be a shame, because the sun also gives some useful calories. I think that when we talk of self-emptying, is that the circuit oil spill is not completely filled with water, oil spill so that when the pump is stopped, all the water down into the part of the circuit frost-(in the house) and the panel is empty, and when the pump is turned on (after the order of the temperature oil spill sensor), the water comes into the panel and all the way around oil spill the circuit. (Must print some tank in the corner I think) So to my knowledge, no self draining circuit without electric pump. Glycol is therefore necessary that in the solar circuit, when the panels are subjected to a risk of frost. Glycol has no interest in a rocket. The rocket of the circuit can be either: -relié to an exchanger oil spill in the tank, so it is an independent circuit. -relié parallel ball: in this case it is useful (shower etc) which passes through oil spill the rocket. In each case, it can be mounted thermosiphon (gravity if the ball is above the heat source), or forced circulation (pump, control and power dependence) Power dependence is a simple thing to emancipate for the solar circuit: just install a small photovoltaic solar panel (a few tens of watts) and a low-voltage pump (12 or 24V) In this way we can do without probe and regulation, electricity to pump will be produced at the same time as hot water, in the presence of sunlight. This avoids the problem oil spill with you thermosiphon solar panels because they are often installed on the roof will not power a ball by gravity as it should be placed above the panels. An expansion oil spill vessel used to absorb the expansion of the water heating. It is essential if the circuit is closed: that forms the solar panel exchanger loop, or rocket balloon. Without it, the pressure rises in