Rack load banks with delta T of 10°C, does this exist?

Several companies offer load banks on the market to test the electrical power of generators and UPS. But few offer load banks that can simulate the thermal behavior of servers as closely as possible.

Some companies offer so-called rackable load banks, that is to say which are placed in racks and simulate several servers with an air flow similar to the servers and dissipate thermal powers equivalent to several servers.

However, none of these companies except Rentaload offer a delta T between the cold air inlet and the hot air outlet of the server comparable to servers, i.e. 8 to 15°C. The delta T of these products is rather around 20 to 25°C. However, this request is more and more frequent on the part of those responsible for operating computer rooms. ” It is essential to be able to fix the delta T even at low power, i.e. 1 kWatt, and this up to powers of 7 or even 14 kWatts per rack, ” says Maxime Faillet, project engineer at APL , a design office specializing in data center design.

But as the recent Press article points out: “However, a company has just released a new rackable bench of 7 kWatts of 10U height with an accuracy of 500 Watts and capable of setting a delta T equivalent to the power of the servers. This is the young company RENTALOAD based in Montbard in Burgundy. It had already innovated 2 years ago by offering a fairly clever 7 kWatts rack-mountable product that was easily installed, with a precision of 500 Watts and with an external module allowing a dual supply chain A and chain B”.

This new product echoed by the press integrates the same facilities and in addition it is directly in double basic feed. In addition, being double height (10U) it corresponds more to the thermal density of the bays by being able to insert 3 per 42U bay, i.e. 21 kWatts in total for very high density bays and always adjustable in steps of 500 Watts. It is rented from Rentaload.