THERMAL SCIENCE

International Scientific Journal

Andrii Radchenko

,

Ionut-Cristian Scurtu

,

Mykola Radchenko

,

Serhiy Forduy

,

Anatoliy Zubarev

MONITORING THE EFFICIENCY OF COOLING AIR AT THE INLET OF GAS ENGINE IN INTEGRATED ENERGY SYSTEM

ABSTRACT
The fuel efficiency of gas engines is effected by the temperature of intake air at the suction of turbocharger. The data on dependence of fuel consumption and engine electric power on the intake air temperature were monitored for Jenbacher gas engine JMS 420 GS-N.LC to evaluate its influence. A waste heat of engine is rejected for heating water to the temperature of about 90°С. The heat received is used in absorption lithium-bromide chiller to produce a cold in the form of chilled water. A cooling capacity of absorption chiller firstly is spent for technological needs and then for feeding the central air conditioner for cooling the ambient air incoming the engine room, from where the air is sucked by the engine turbocharger. The monitoring data revealed the reserves to enhance the efficiency of traditional cooling system of intake air by absorption chiller through deeper cooling. This concept can be realized in two ways: by addition cooling a chilled water from absorption chiller to about 5-7°С for feeding engine intake air cooler or by two-stage cooling with precooling ambient air by chilled water from adsorption chiller, in the first stage and subsequent deep cooling air to the temperatures 7-10°С in the second stage of intake air cooler by using a refrigerant as a coolant. In both cases the ejector chiller could be applied as the most simple in design.
KEYWORDS
engine, Intake Air Cooling, Absorption chiller, Ejector Chiller
PAPER SUBMITTED: 2020-07-11
PAPER REVISED: 2020-11-20
PAPER ACCEPTED: 2020-11-29
PUBLISHED ONLINE: 2021-01-02
DOI REFERENCE: https://doi.org/10.2298/TSCI200711344R
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2022, VOLUME 26, ISSUE Issue 1, PAGES [185 - 194]
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Monitoring the efficiency of cooling air at the inlet of gas engine in integrated energy system

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