E3S Web Conf.
Volume 112, 20198th International Conference on Thermal Equipment, Renewable Energy and Rural Development (TE-RE-RD 2019)
|Number of page(s)||8|
|Section||Thermal Equipments and Processes|
|Published online||20 August 2019|
Waste-Energy (Heat) Recovery System from the Gases Compressed by an Oil-Free Screw Compressor
INCDT COMOTI, Bucharest, Romania
* Corresponding author: email@example.com
During compression, a gas heats up, almost in all cases this heat being wasted, either by cooling the gas because it is too hot for the application, or by storing the gas and letting the compressed gas cool naturally in the storage tank. This paper presents a waste-energy (heat) recovery system from the gases compressed by an oil-free screw compressor. The gases compressed by this compressor have a very high temperature compared to an oil injected screw compressor, due to the fact that the oil used to lubricate the rotors also acts as a heat sink, the oil free variant which is used when you want a very high purity of the gas, has higher tolerances and more friction between the rotors which result in a higher gas temperature. The recovery system uses a heat exchanger to extract the waste energy from the gas and at the same time it will cool it for immediate use. Depending on the requirements, the energy recovered may be used immediately to produce useful work or stored for a later use. It may be used for heating a building, to produce steam for a turbine driving electrical generator, or in other forms.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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