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element
The finite element method (FEM) is a popular method for numerically solving differential equations arising in engineering and mathematical modeling. Typical problem areas of interest include the traditional fields of structural analysis, heat transfer, fluid flow, mass transport, and electromagnetic potential.
The FEM is a general numerical method for solving partial differential equations in two or three space variables (i.e., some boundary value problems). To solve a problem, the FEM subdivides a large system into smaller, simpler parts that are called finite elements. This is achieved by a particular space discretization in the space dimensions, which is implemented by the construction of a mesh of the object: the numerical domain for the solution, which has a finite number of points.
The finite element method formulation of a boundary value problem finally results in a system of algebraic equations. The method approximates the unknown function over the domain.
The simple equations that model these finite elements are then assembled into a larger system of equations that models the entire problem. The FEM then approximates a solution by minimizing an associated error function via the calculus of variations.
Studying or analyzing a phenomenon with FEM is often referred to as finite element analysis (FEA).
I have just had a new boiler and 210 ltr unvented tank fitted in the loft to replace a very old Baxi back boiler. I have now fitted a Solic 200 diverter to utilise all the spare capacity from the 3,84 Kw Pv system on the roof. This has only just become an option as the old existing tank did not...
Hi. Hopefully someone can point me in the right direction. Bit general. We have solar boosting our hot water using iboost. My question, the current immersion element hasn’t been changed for 14 years. Should I upgrade/change it to increase efficiency? Current I haven’t seen any degradation in...
Hello, hoping someone can advise me. My boiler stopped working - no hot water or central heating. Called out a company who came and assessed the problem as being that the hot water element in the immersion tank needed replacing. (I don't know exactly what it is called as the company has still...
Johnno1966
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Struggled with an element that was far too wide to come out of the aperture (how was it ever put in ?) I had to cut one loop. After some brute force the head broke off leaving the broken ends of the element protruding. I wiggled half of it out at which point the other half fell back into the...
Got all my stuff together to finally fit the recirculation pump to my hot water tank, but I can't budge the immersion element.
I need this out because a) I'm fitting solar which will be used to heat the hot water and although the fitted element has not been used so far, it's been in maybe 20...
hot water tank water too hot, i have replaced the thermostat and element but still the same issue. Th element is housed in a 4" section of pipe fed from the base of the tank to to top of the tank.
Any help appreciated.
Any advice welcome, Tony H
Tony H
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Hi All, just popped over from the sparky forum to get an opinion on something....
Need to heat a standalone plastic bath tub to normal bathing temp and maintain it indefinitely. Not a plumbed system, totally stand alone.
Considering using a Willis style external element and having the normal...
Hi, I want to fit an immersion heating element to my hot water tank (water is currently heated by gas). I'd like to buy it before I start draining water from the tank. The plug in the tank has a 1 1/4" nut on a pate approx 3" in diameter, does anybody know what size thread the tank will have...
Tony Griffin
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element
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I plan on possibly swapping a Mira element exposed mixer. For a bar shower. The pipes extend 18mm from the Finnish wall. If I pull the olives off with an olive puller. I would be hoping then to fit the surface bath shower fixing kit. As long as there is a tiny bit of play on the pipes. I need...
My hot water supply from our Altherma unit is fine but our shower is almost cold.
Is it possible that the filter on the hot water inlet he's become blocked - they do recommend cleaning every 12 months and our has been there for five years.
I have found an instruction to do this HERE but cannot...
About a year ago, I had the bathroom towel radiator replaced with a larger one, and an electric dual-fuel element added.
The wet circuit is driven by a Multi-fuel stove that is rarely used, and the electric element is used almost all winter, on a programmable thermostat, to heat the bathroom...
I'd appreciate some guidance on whether my thinking is right:
Direct feed, immersion-only tank, probably about 15 years old.
Lower, side-entry element stopped heating the water at night. Testing showed that the timer was no longer switching the relay, so I replaced it. Since then, it has not...
Hello, have an existing electric radiator and wanting to replace the heating element. Was hoping this would be a simple one but stumbling at the first hurdle as no idea how to remove the existing.. see photos.. any idea how to remove this?
The electric radiator is a Java cyclope by Kalirel...
Hi all,
I"ve got my G3 unvented.
Customer wants an immersion element changing. Access is limited - once I get into the cupboard, and I do my electrical tests it hopefully might just be the stat that needs swapping.
However, if it is the element... words of advice and tips would be...
I have an immersion heater Newlec NL27PT. How do I check the heating element and thermostat if either is defective? Also, what is the equivalent part number for the heating element and the thermostat as NL27PT is not available?
Hi,
I'm replacing a 14" copper immersion heater installed into a Fortic hot water cylinder. The heater failed after just three years.
Hoping to get more life out of the next one, I've ordered an Incoloy, but am wondering whether to go for the titanium instead. It's only an extra couple of...
In addition to the problem my daughter has with hot and cold flow rates varying wildly reported in a previous post now the bottom element has expired. Hence she is only heating about 1/3rd of tank at most and then on day rate electricity. Am I being Mr DIYer allowed to drain the tank and fit a...
Hi
We recently had a horizontal cylinder installed with a main hot water supply from a gas boiler. The immersion heater was hooked up to a solar panel diverter to utilise excess power generated by the panels. This worked great for the first few months, but suddenly the diverter was reporting...
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