2 brothers

Centrale termice

Centrale termice

Aer conditionat multisplit

Aer conditionat LG Multi Split

Aer conditionat

In aceasta perioada aparatele de aer conditionat sunt o necesitate. Ele ne asigura un cofort optim in perioadele in care temperatura exterioara este marita. In cele mai multe cazuri in Romania nu este necesar un aparat de aer conditionat atata timp cat se asigura racirea de noapte (night cooling). Aceasta racire de noapte se realizeaza atunci cand temperatura exterioara pe timpul noptii este sub 20-23 grdC. Atunci cand temperatura exterioara este mai mare, racirea de noapte nu se mai realizeaza, iar cladirile de locuit devin mai calde decat temperarura de confort.

Aparatul de aer conditionat raceste prin recircularea aerului de la interior. Ideea ca aparatul raceste aerul exterior si il introduce in camera este gresita. Astfel pozitionarea in camera a aparatului de aer conditionat are o mica influenta in functionarea lui. Putem sa il montam la ferestre sau in capatul opus al incaperii iar el va face acelasi lucru.

O alta idee preconceputa este ca putem pune un singur aparat de aer conditionat pentru toata casa. Fals. Aparatele de aer conditionat se monteaza ca si caloriferele, in fiecare incapere. Aparatele pe hol racesc holul si indirect camerele adiacente, insa intr-o mica masura, in calculele aproximative consideram ~1000 Btu/h pentru fiecare metru liniar de usa catre spatii neclimatizate.

Publicat de pe mobil

Doar de est ca sa bad cim eate. Mda nu prea merge grozav, dar poate asa ste mai bine.

Dupa o zi cred ca ma descurc mai bine. Totul este in exercitiu.

Save and exit in Linux text editor VI

The Linux vi editor is a tool to edit files in the Linux command line terminal. It has been a popular text editor to edit server configuration files and programs for so long. Almost all Linux distributions include vi editor in default installation.

I'm new to Linux, things like save and exit in a text editor may seem for linux users as easy as not worth mentioninig.

I was put in the situation to edit a file, save and exit the program. All good, type what you want, navigate inside the file with arrows, etc. When to save, you have to do it with a combination of keys, but what combination? More, all the commands I tryed, they just apear in my file...

I searched the internet, there is nowere I cand find just that information. I have to read and compile from FAQ's, Documentations.

First, I find that the editor is VI, and there is

Command mode & Insert mode

In the insert mode, one can write, and in command mode, one can issue commands.

ESC will take one out of insert mode and return one to
command mode.

ZZ is the Exit and save command

More here: vi editor FAQ (Frequently Asked Question List), Part 1/2

Easy? After 3 hours of searching and reading on the internet is easy for me too.