Combined direct and indirect evaporative cooling system and method
AssigneeKing Abdullah University of Science and Technology
InventorsKim Choon Ng, Muhammad Wakil Shahzad, Muhammad Burhan, Doskhan Ybyraiymkul, Seung Jin Oh
Life of this patent
Estimating the term…
Abstract
A cooling system for cooling an enclosure, the cooling system including a heat exchange section configured to transfer sensible heat; a humidifier located outside the heat exchange section and configured to humidify a working air stream C so that it transfers latent heat; an air moving system configured to move various air streams through the cooling system; and a piping system configured to connect the heat exchange section to the humidifier and the air moving system. The sensible heat transfer is decoupled from the latent heat transfer.
Claims27
A cooling system for cooling an enclosure, the cooling system comprising:
- a heat exchange section configured to transfer sensible heat between an inlet air stream and a humid working air stream;
- a humidifier located outside the heat exchange section and configured to humidify a working air stream, extracted from the inlet air stream, to generate the humid working air stream so that the humidifier transfers latent heat;
- an air moving system configured to move various air streams through the cooling system;
- and
- a piping system configured to provide the humid working air stream from the humidifier to the heat exchange section, and the working air stream to the humidifier,
- wherein the sensible heat transfer between the inlet air stream and the humid working air stream is decoupled from the latent heat transfer at the working air stream.
A method for cooling an enclosure with a cooling system, the method comprising:
- absorbing from outside the cooling system an inlet air stream and circulating the inlet air stream through a dry channel of a heat exchange section, which is configured to transfer sensible heat from the dry channel to first and second wet channels;
- cooling the inlet air stream in the dry channel to obtain a cooled air stream;
- removing part of the cooled air stream as a working air stream;
- increasing a humidity of the working air stream with a humidifier, which is located outside the heat exchange section, to obtain a humid working air stream;
- circulating the humid working air stream through the first and second wet channels to evaporate water droplets and obtain a purged air stream;
- and
- expelling the purged air stream outside the cooling system.
A cooling system for cooling an enclosure, the cooling system comprising:
- a dry channel configured to perform sensible heat exchange on an inlet air stream to obtain a cooled air stream for cooling the enclosure;
- a first wet channel configured to transfer heat to a humid working air stream to obtain a purged air stream;
- and
- a humidifier located outside the dry channel and the first wet channel and configured to humidify a working air stream to obtain the humid working air stream,
- wherein the inlet air stream is taken from outside the enclosure, and
- wherein the purged air stream is released outside the enclosure.
Dependencies are inferred from the claim text.