Κλιματισμός σε Server Room

[rootbreaker]

Ενα καλο βιντεο που τα εξηγει επιγραμματικά ειναι αυτό

Εχοντας ασχοληθεί επαγγελματικα σε παρομοιες εγκαταστασεις (οχι servers αλλα μετασχηματιστες σε κλειστους χωρους), η χρηση CFD επιβάλλεται για το σωστο σχεδιασμο.

[sdim]

 

[sdim]

Μόλις τώρα, sdim said:

 

Υποδειγματική εγκατάσταση κλιματισμού server room:

- Χρωματισμός σωλήνων ανάλογα με το είδος του σωλήνα

- Συστολές/διαστολές

- Αλυσίδες για ανύψωση των ανταλλακτικών όταν χρειαστεί

- Βάνες σε πολλά σημεία για απομόνωση τμήματος της εγκατάστασης.

- Άπλετος χώρος για τους τεχνικούς συντήρησης

- Φρεάτιο μεγάλης διαμέτρου ώστε να απορροφήσει γρήγορα τα νερά που θα πέσουν στο δάπεδο αν γίνουν εργασίες συντήρησης.

 

[nvel]

η μόνωση των σωλήνων;

άκυρο, το θυμήθηκα γιατί δεν χρειάζεται

Edited Ιούνιος 10 , 2019 by nvel

[Scrooge]

Παραθέτω ένα κείμενο (στα αγγλικά) που είχα βρει για παρόμοια περίπτωση πριν από χρόνια.

Δεν θυμάμαι πλέον πού το είχα βρει και δεν εγγυώμαι την αξιοπιστία του, αλλά μπορείς να πάρεις μια ιδέα.

 

Calculating The Size of a Server Room Air Conditioner

This article is a quick guide to how to work out your requirements for an air conditioning unit for your Server Room or Data Center*.

In principle it's easy to calculate the size of air conditioning unit you need for your Server Room, just add together all the sources of heat and install an air conditioning unit that can remove that much. In practice it's rather more complicated.

Fire regulations often require that Server Rooms have levels of insulation far above that of a normal office. Providing sufficient cooling is essential to ensure reliable running of servers, routers, switches and other key equipment. Failure of the air conditioning can have serious consequences for the equipment itself and for your company. Early warning of problems and spare capacity in the cooling system are both highly desirable.

Calculating Heat Load

The amount of heat generated is known as the heat gain or heat load. Heat is measured in either British Thermal Units (BTU) or Kilowatts (KW). 1KW is equivalent to 3412BTUs.

The heat load depends on a number of factors, by taking into account those that apply in your circumstances and adding them together a reasonably accurate measure of the total heat can be calculated*.

Floor Area of Room

Room Area BTU = Length (m) x Width (m) x 337

Window Size and Position

If, as is quite common, your Server Room has no windows, you can ignore this part of the calculation. If, however there are windows you need to take the size and orientation into account.

South Window BTU = South Facing window Length (m) x Width (m) x 870

North Window BTU = North Facing windows Length (m) x Width (m) x 165

If there are no blinds on the windows multiply the result(s) by 1.5.

Obviously if you are in the Southern Hemisphere you would swap the conversion factors as the heat on North facing windows is then greatest.

Windows BTU = South Window(s) BTU + North Window(s) BTU

Occupants

Purpose built Server Rooms don't normally have people working in them, but if people do regularly work in your Server Room you will have to take that into account.

Total Occupant BTU = Number of occupants x 400

Equipment

Clearly most heat in a Server Room is generated by the equipment (servers, switches, routers etc). This is trickier to calculate that you might think. The wattage on equipment is the maximum power consumption rating, the actual power consumed may be less. However it is probably safer to overestimate the wattage than underestimate it.

Equipment BTU = Total wattage for all equipment x 3.5

Lighting

Lighting BTU = Total wattage for all lighting x 4.25

Total Cooling Required

Total Heat Load = Room Area BTU + Windows BTU + Total Occupant BTU + Equipment BTU + Lighting BTU

This is the amount of cooling required so you need one or more air conditioning units to handle that amount of heat.

So what size of unit do I need?

Small air conditioning units have a cooling capacity of between 5000 and 10000 BTUs. Small units may fit in windows, venting to the outside world.

Larger units may be rated in tons of cooling. 1 ton of cooling is equivalent to 12000 BTUs.

• Disclaimer: This calculation is intended as a rough guide only. Complete accuracy cannot be guaranteed. Before you decide on an air conditioning unit you should commission an audit from a suitably qualified air conditioning equipment specialist or installer.

[georgegaleos]

Σχετικά με τον Συγγραφέα
Ο Denis Laverty διαθέτει περισσότερα από 12 χρόνια εμπειρίας στη διαχείριση δικτύων. Το 2003 ίδρυσε το OPENXTRA.

https://www.openxtra.co.uk/kb/how-to-calculate-the-size-of-a-server-room-air-conditioner.html

Το άρθρο παρακάτω το βρήκα δημοσιευμένο από αυτόν κάπου στο 2007.

How to Calculate the Size of a Server Room Air Conditioner.pdf

Edited Ιούνιος 10 , 2019 by georgegaleos

[Scrooge]

@ georgegaleos

Να λοιπόν πού βρήκα το κείμενο που ανέβασα λίγο πριν!