Calculating Server Room Heat Loads

Priceless corporate data and tens of thousands of dollars of server room equipment can quickly be at risk for loss if server room temperatures aren’t maintained correctly. Because server room equipment releases so much more heat than any other office location, portable air conditioners are the ideal solution for cooling the server room by being location specific with your critical cooling requirements.

Server room cooling needs
Before purchasing air conditioners for a server room, you’ll need to calculate how much heat must be displaced. With the excessive amount of heat produced by the server room equipment, you can’t choose a portable air conditioner based on the general square foot recommendations alone. Instead, you’ll need to pay attention to the entire BTUs generated in the server room.
In principle it’s easy to calculate the size of air conditioning unit you’ll need for your server room just add together all the sources of heat and install an air conditioning unit that can remove that much cooling. In practice however, it’s rather more complicated.

Calculating The Heat Load
The amount of heat generated is known as heat gain or heat load. Heat is measured in either British Thermal Units (BTU) or Kilowatts (KW).
1 KW is equivalent to 3412 BTUs. 12000 BTU = 1 Ton of Cooling Capacity

Factors Include:

• The floor area of the room
• The size and position of windows, and whether they have blinds or shades
• The number of room occupants (if any)
• The heat generated by equipment
• The heat generated by lighting

To calculate the heat load you will need the following information.Room Area BTU = Length (m) x Width (m) x 337

• • 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.
  • Windows BTU = South Window(s) BTU + North Window(s) BTU
  • Total Occupant BTU = Number of occupants x 400
  • Equipment BTU = Total wattage for all equipment x 3.5
  • Lighting BTU = Total wattage for all lighting x 4.25

Total Cooling Required
Add all the BTUs together
Room Area BTU + Windows BTU + Total Occupant BTU + Equipment BTU + Lighting BTU = Total Heat Load
Total Heat Load divided by 12000 = Total Cooling Tonnage
For example if the calculated BTU = 16400 BTU then 16400/12000 = 1.36 Total Cooling tonnage required. Since the requirement is 1.36 Tons you would consider using our SCT18, 1.5 Ton unit to cool your server room.

Resources: http://www.portableairconditionersinc.com

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A Bricks and Clicks Business: Melayani Penjualan Offline dan Online

Kabel untuk instalasi Penyejuk Udara Rumah (AC - Home Air Conditioners)

Penentukan ukuran kabel sangatlah penting. Ukuran kawat konduktor harus tepat untuk dapat mengalirkan tenaga listrik yang dibutuhkan. Ukuran kabel dinyatakan dalam mm2 dengan dilakukan pengukuran luas penampang kawat. Makin besar penampang kawat makin tinggi arus listrik yang dapat dihantar.
Akan sangat berbahaya kalau kabel yang dipergunakan terlalu kecil dibandingkan dengan kebutuhan arus listrik. Akibatnya akan kabel akan overheated dan timbul risiko keamanan.

Tabel Ukuran Kawat Konduktor, Arus Listrik dan Tenaga Listrik Maksimum

Ukuran Konduktor	Arus Listrik (Ampere)	Tenaga Listrik Maksimum (Watt)
1.0 mm2	10 Ampere	s/d 2400 Watt
1.25 mm2	13 Ampere	s/d 3120 Watt
1.5 mm2	15 Ampere	s/d 3600 Watt
2.5 mm2	20 Ampere	s/d 4800 Watt
4.0 mm2	25 Ampere	s/d 6000 Watt

Pemakaian tenaga listrik AC sangat bervariasi, tergantung teknologi yang digunakan. Satu produsen merek tertentu pun menawarkan AC dengan pemakaian tenaga listriknya berbeda.Ada AC yang pemakaian listriknya standar, ada juga yang hemat energi.

Pemakaian Tenaga Listrik Penyejuk Udara (Air Conditioners) berdasarkan Kapasitas Pendingin

Kapasitas AC	BTU/Jam	Tenaga Listrik (Watt)
1/2 PK	5000 BTU/Jam	s/d 500 Watt
3/4 PK	7000 BTU/Jam	s/d 700 Watt
1 PK	9000 BTU/Jam	s/d 900 Watt
1 1/2 PK	12000 BTU/Jam	s/d 1200 Watt
2 PK	18000 BTU/Jam	s/d 1800 Watt

Cara mudah memilih kabel instalasi AC

1. Pastikan kabel memiliki tiga kawat didalamnya, yang mana salah satu kawatnya untuk arde.
2. Kapasitas Penyejuk Udara (AC) 1/2 PK, 3/4PK dan 1 PK, pakai kabel ukuran 3x1,5mm2.
3. Kapasitas Penyejuk Udara (AC) 1 1/2 PK dan 2PK, pakai kabel ukuran 3x2,5mm2.
   
4. Pastikan kabel yang dipergunakan dibuat sesuai dengan SPLN (Standar Perusahaan Listrik Negara)./ SNI (Standar Nasional Indonesia)

Artikel Menarik :
Kabel listrik, Dari Wikipedia bahasa Indonesia, ensiklopedia bebas

Cermat Pilih Kabel, Hindari Kebakaran

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Penjualan dan Servis Penyejuk Udara (Air Conditioners)