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For data center HVAC system which is the best solution Dual cooling system or Dx units?

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تم إضافة السؤال من قبل Mohamed Elkhateeb , Deputy Head of property operations and facilities management , Egyptian banks company
تاريخ النشر: 2016/10/19
Satyabratasantanu Ranjan sahoo
من قبل Satyabratasantanu Ranjan sahoo , Maintenance Engineer , DTSS (Dusters Total Solutions Services)

Dual cooling system and depends upon the size of data center.

Chandan Singh
من قبل Chandan Singh , MEP Engineer , Elegancia Hospitality Group.

It must be Dx units or direct expansion unit for better results. 

Muhammad Ejaz Kamal
من قبل Muhammad Ejaz Kamal , IT Specialist Manager , Software Solution Systems

Well I believe Dual cooling system is better as it is part of Tier-3/4 type of data center with less downtime. although the calculation is totally depending upon the size of datacenter. 

RAJ DAHIYA
من قبل RAJ DAHIYA , Project Manager - Energy Optimization , Siemens

DX system is good w.r.t. Power Usage Effectiveness (PUE) however, for a Data center, it is better to use Dual System to have an alternate system ready for odd times.

LINUMON KUNJU KUNJU
من قبل LINUMON KUNJU KUNJU , Mechanical Engineer , COWI

Best is Dual cooling system as chilled water can be primarily used which is more energy efficient and DX can support in case of common fault or power outage. 

Mohammed M
من قبل Mohammed M , Store Setup Engineer , Mostela Apparels Pvt Ltd.

Dual Cooling system is highly recommended - Reason : Data Centers are too sensitive that a failure in the temperature maintaining system would shut down the Racks which leads to a huge data & revenue loss.

 

Dx Units are Recommended in low distance piping run areas - To be honest Now a days there are DX units with Dual Cooling added to it. I have Installed around 8 Units in 1 of my previous data center project.

Mohammed Mansoor Ali Khan
من قبل Mohammed Mansoor Ali Khan , Senior Mechanical Project Engineer-HVAC , Bader Al Mulla & Bros.

It is recommended to have dual system.

 

Imran  Khan
من قبل Imran Khan , Graduate Engineer Trainee , Sunchirin autoparts Pvt Ltd

DX system is best solution.

Orlando Arenas
من قبل Orlando Arenas , Mechanical Engineer , stradaverde consultant

I recommend to used dual cooling system to ensure and maintain the proper required cooling system & temperature either chilled water system or Dx system. In case of breakdown failure there will be alternative backup & continuous operation.

Mustafa Elsayed PMP
من قبل Mustafa Elsayed PMP , Construction manager , First Fix

For data center HVAC system , the dual cooling system is the best choice.

It is called CRAC units : Computer room air conditioning units.

Where there are two cooling coil inside the unit, one using chilled water system (normal operation) and the other is using refrigerant (dx system for emergency case).

in case of emergency the unit will be connected two the emergency power (generators, UPS,.......)

chetan sharma
من قبل chetan sharma , Senior project engineer , trinity engineering services

chilled water operated CRAC UNITS since your talking about data centers you will have to surely install thermal storage tank in case of power outrage .so chilled water is recommended. 

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