Methods to determine a design cooling capacity of ambient air conditioning systems in climatic conditions of Ukraine and Kazakhstan

Radchenko, N.; Trushliakov, Eugeniy; Radchenko, Andrii; Tsoy, A. P.; Shchesiuk, Oleg

doi:10.1063/5.0026790

Cited by 12 publications

(5 citation statements)

References 35 publications

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“…Various methods including ANSIS [35][36][37], statistical methods for processing monitoring data and ambient air parameters [38,39] [40][41][42]. The most of wellknown concepts of increasing the efficiency of trigeneration plant are limited to engine out-cycle use of refrigeration capacity and issue from conventional trigeneration with ACh [17,18].…”

Section: Literature Reviewmentioning

confidence: 99%

Innovative combined in-cycle trigeneration technologies for food industries

et al. 2021

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The majority of integrated energy systems (IES) for combined electricity, heat and refrigeration generation, or trigeneration, are based on gas engines. The fuel efficiency of gas engines are strictly influenced by intake air temperatures. Practically in all IES the absorption lithium-bromide chillers (ACh) are applied for conversing the heat removed from the engine into refrigeration in the form of chilled water. The peculiarity of trigeneration in food industries is the use of chilled water of about 12°C for technological needs instead of 7°C as typical for ACh. This leads to a considerable great potential of engine intake air deeper cooling not realized by ACh, that can be used by ejector chiller (ECh) as the low temperature stage of two-stage absorption-ejector chiller (AECh) to provide engine cyclic air deep cooling and enhancing engine fuel efficiency. To evaluate the effect of gas engine cyclic air cooling the data on fuel consumption and power output of gas engine JMS 420 GS-N.L were analyzed.

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Section: Literature Reviewmentioning

confidence: 99%

Innovative combined in-cycle trigeneration technologies for food industries

et al. 2021

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“…Modern methods, including ANSIS [31][32][33], can be used for simulation and optimizing the processes. Some of methodological approaches gained in waste heat recovery refrigeration [34,35] might be successfully applied in air conditioning to choose design refrigeration capacity to match current cooling demand [36,37]. All the typical methods, based on the current or summarized annual refrigeration energy production, issue from the assumption of a design refrigeration capacity to cover maximum conditioning needs over the full range of yearly operating conditions [38][39][40].…”

Section: Literature Reviewmentioning

confidence: 99%

Alternative variable refrigerant flow (VRF) air conditioning systems with rational distribution of thermal load

et al. 2021

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One of the most attractive reserves of enhancing the energetic efficiency of air conditioning systems (ACS) is to provide operation of compressors in closed to nominal modes by choosing the rational design refrigeration capacities and their distribution according to current thermal loading to provide closed to maximum annual refrigeration energy generation. Generally, the overall thermal load band of any ACS comprises the unstable load range, corresponding to ambient air precooling with significant load fluctuations, and a comparatively stable load part for further air conditioning from a threshold temperature to a target value. The stable thermal load range can be covered by operation of conventional compressor in closed to nominal mode, meantime ambient air precooling needs load modulation by applying a variable speed compressor. A proposed ACS enables a wide range of refrigerant flow variation without heat flux drop in air coolers and can be considered as advanced alternative to variable refrigerant flow systems.

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“…The ECh consist of heat exchangers [12] suitable for mounting in free spaces. They enables to deep cool air but with a low COP of 0.2 to 0.3 [13] and quite suitable for railway [14,15] and marine [16,17] applications.…”

Section: Literature Reviewmentioning

confidence: 99%

Cooling intake air of marine engine with water-fuel emulsion combustion by ejector chiller

et al. 2021

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The fuel efficiency of cooling air at the inlet of marine low speed diesel engine with water-fuel emulsion combustion by ejector chiller utilizing the heat of exhaust gas along the route line Mariupol– Amsterdam–Mariupol was estimated. The values of available refrigeration capacity of ejector chiller, engine intake air temperature drop and corresponding decrease in specific fuel consumption of the main diesel engine at varying climatic conditions along the route line were evaluated. Their values for water-fuel emulsion were compared with conventional fuel oil combustion.

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Methods to determine a design cooling capacity of ambient air conditioning systems in climatic conditions of Ukraine and Kazakhstan

Cited by 12 publications

References 35 publications

Innovative combined in-cycle trigeneration technologies for food industries

Innovative combined in-cycle trigeneration technologies for food industries

Alternative variable refrigerant flow (VRF) air conditioning systems with rational distribution of thermal load

Cooling intake air of marine engine with water-fuel emulsion combustion by ejector chiller

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