HIGH-RESPONSE COMPLEX FOR ANALYZING DROPLETS AND VAPORS IN AEROSOL CLOUDS FORMED IN THE ATMOSPHEREDUE TO LIQUID DISPERSION

Author(s):  
A. V. ZAGNIT'KO ◽  
◽  
N. P. ZARETSKIY ◽  
I. D. MATSUKOV ◽  
V. V. PIMENOV ◽  
...  

The high-response diagnostic complex for remote control and analyses of droplets and vapors of mazut, oil, gasoline, kerosene, diesel fuel and liquefied natural gas in the clouds and turbulent aerosolflows in the atmosphere with volume up to 107 m3 is described.

2021 ◽  
pp. 99-107
Author(s):  
Lev V. Ivanov ◽  
Alexey V. Soloviev ◽  
Ernest V. Rumiantcev

The article discusses the prospects for the modernization of projects of ships operating in the water areas of the main Siberian rivers, for the use of liquefied natural gas (LNG) as the main type of fuel, as well as problems associated with the adaptation of existing ship designs. LNG is a cheap, energy efficient, and more environmentally friendly analogue of traditional diesel fuel (DF). Unification of adaptation projects for common types of main engines of ships from northern shipping companies will significantly reduce operating costs. Modernization problems are associated with the storage of fuel stock on ships. The lower density of LNG in comparison with diesel fuel, as well as the need to use a cryogenic fuel tank, reduces the autonomy of the ship's operation on LNG. The analysis carried out in the article showed that with modernization, the autonomy of navigation in terms of fuel reserves can decrease by 2 times


2014 ◽  
Vol 960-961 ◽  
pp. 1389-1393
Author(s):  
Qiang Shi ◽  
Chun Hua Zhang ◽  
Yan Chao Cai ◽  
Ju Xiang Fang

In order to study the application of the liquefied natural gas (LNG) on diesel engine, a turbocharged diesel engine was converted into a dual-fuel engine ignited by diesel fuel. The effects of load ratio on fuel economy and emissions of dual-fuel engine were compared and analyzed at engine speed of 1200 r/min, 1600 r/min and 2200 r/min. The experimental results show that, the specific fuel consumption is reduced with the increase of load ratio at different speeds. As the load ratio increases, CO emission of dual-fuel reduces, but it increases slightly at high loads and full load. When the load ratio is less than 40%, HC emission of dual-fuel is reduced significantly with the increase of load, but increases when the load ratio continues to increase, and finally HC emission is stable. When the load ratio is less than 40 %, NOx emission is relatively low, as the load ratio increases, increases sharply, but at high loads and full load, reduces slightly.


2017 ◽  
Vol 10 (2) ◽  
pp. 88-95
Author(s):  
Hasanain A. Abdul Wahhab ◽  
Mahdi A. Ismael ◽  
A. Rashid A. Aziz ◽  
Morgan R. Heikal ◽  
Hussain H. Al-Kayiem

2021 ◽  
Vol 2021 (4) ◽  
pp. 104-113
Author(s):  
Igor G. KISELEV ◽  
◽  
Sergey B. KOMISSAROV ◽  
Dmitry Ya. MONASTYRSKY ◽  
◽  
...  

Objective: Analysis of the feasibility of using LNG as an alternative to diesel fuel in mobile power units used as a power source for refrigeration units of refrigerated containers. Methods: Natural gas has been compared to diesel fuel in terms of the economic characteristics; exergy analysis, systema111 tic approach, and synthesis have been used. Results: The economic feasibility of replacing diesel fuel with LNG for power units of refrigerated containers is determined; general issues of converting from diesel fuel to LNG were considered; possible ways of utilizing cold during regasification are proposed; emissions of harmful substances from the combustion of LNG and diesel fuel were compared. Practical importance: The study findings can be applied when converting mobile power units for various purposes from diesel fuel to LNG, as well as for in-depth analysis of individual problems of using LNG as a fue.


2019 ◽  
Vol 105 ◽  
pp. 03019 ◽  
Author(s):  
Georgiy Dubov ◽  
Dmitriy Trukhmanov ◽  
Iliya Kuznetsov ◽  
Sergey Nokhrin ◽  
Aleksey Sergel

The state-of-the-art of the advantages of using liquefied natural gas as a motor fuel for haul trucks instead of oil motor fuel is considered. It is noted that the energy intensity of the process of rock mass hauling by dual-fuel (gas-diesel) haul trucks is less than that of haul trucks running on diesel only. It is argued that the most promising in relation to heavy-duty mining trucks, is the conversion of diesel engines to gas-diesel operation. The universal integrated procedure for evaluating currently used haul truck on-board cryogenic fuel systems performance is presented. The method of evaluating the “rate of replacement” of diesel fuel with liquefied natural gas, when operating haul trucks equipped with on-board cryogenic fuel systems, is described in detail. The possible sequence of per-cycle, per-ingle-shift and per-day monitoring of the rate of diesel fuel replacement with liquefied natural gas is presented. The method for evaluating the economic efficiency of the operation of high-payload-capacity haul trucks conversed to gas-diesel operation is given, which allows, among other things, determining the actual service life of on-board cryogenic fuel systems and their time to failure.


2020 ◽  
Vol 174 ◽  
pp. 03010
Author(s):  
Ilya Kuznetsov ◽  
Ivan Panachev ◽  
Georgiy Dubov ◽  
Sergey Nokhrin

The parameters of the BelAZ-75131 heavy dump truck im- proved model using gas-diesel mixture are given in the paper. The moni- toring analysis of the conditions and operation indicators of BelAZ-75131 heavy dump truck using diesel and gaseous fuels is done. Numerical and percentage values of the replacement of diesel fuel with liquefied natural gas when transporting exploded rock mass are determined; the volume of diesel fuel and liquefied natural gas consumption has been established. The analytical dependence to calculate the cost per unit of energy during trans- portation by mining dump trucks with gas equipment is determined. The energy estimation of diesel and gas-diesel mining dump trucks operation is given.


2000 ◽  
Author(s):  
Dean Girdis ◽  
Stratos Tavoulareas ◽  
Ray Tomkins

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