Optimal operation of an ice-tank for a supermarket refrigeration system

In modern conditions, the practice of building multi-storey office buildings, shopping centers and catering establishments where the installation of air conditioning systems is necessary is becoming widespread. In addition to regulatory requirements, the need for air conditioning systems is dictated by market conditions: a building in which optimal microclimatic conditions are created has significant competitive advantages in terms of renting, selling and operating compared to a building without ventilation and air conditioning systems. The main approaches to the installation of air conditioning systems are as follows: central air conditioning combined with ventilation and air heating; the use of local closers where the coolant is water - climate beams, fan coils; use of freon local systems - local and multizonal. Given the frequent inconsistency of planning and operational decisions of these buildings, due to the fact that different tenants may have different needs for the installation of air conditioning systems, different heat surpluses and other hazards, the installation of water cooling systems is one of the best solutions. within the limits of modernization of the system in accordance with the new operational features. Water cooling systems require the creation of an optimal hydraulic regime, which will not only allow optimal operation of refrigeration equipment, but also save energy. A significant difference in the formation of the hydraulic environment with constant and variable mode has formed the objectives of the study and confirms their relevance. The article considers the approaches to the formation of hydraulic modes of the refrigeration system. The results of the research were implemented during the construction of a real public facility. On the example of this object, the economic indicators of the formation of different hydraulic modes of the refrigeration system are determined. The use of the correct schemes for the formation of hydraulic modes of water cooling systems will significantly increase the energy efficiency of the process of forming the internal microclimate of these premises.

Download Full-text

Research on Hydraulic Optimal Operation Scheduling of Multi-Heat Source Co-Heating Network

ICPTT 2012 ◽

10.1061/9780784412619.045 ◽

2012 ◽

Author(s):

Zhigang Zhou ◽

Peng Wang ◽

Pinghua Zou

Keyword(s):

Heat Source ◽

Optimal Operation ◽

Operation Scheduling

Download Full-text

Consideration of Geopolitical Challenges within the Analysis of Geoenvironmental Risks for Oil and Gas Development of the Russian Arctic

Issues of Risk Analysis ◽

10.32686/1812-5220-2019-16-6-50-59 ◽

2019 ◽

Vol 16 (6) ◽

pp. 50-59

Author(s):

O. P. Trubitsina ◽

V. N. Bashkin

Keyword(s):

Oil And Gas ◽

Oil And Gas Industry ◽

Optimal Operation ◽

The Arctic ◽

Stage Model ◽

Oil And Gas Development ◽

Gas Industry ◽

The Impact ◽

Further Development ◽

Geopolitical Risks

The article is devoted to the consideration of geopolitical challenges for the analysis of geoenvironmental risks (GERs) in the hydrocarbon development of the Arctic territory. Geopolitical risks (GPRs), like GERs, can be transformed into opposite external environment factors of oil and gas industry facilities in the form of additional opportunities or threats, which the authors identify in detail for each type of risk. This is necessary for further development of methodological base of expert methods for GER management in the context of the implementational proposed two-stage model of the GER analysis taking to account GPR for the improvement of effectiveness making decisions to ensure optimal operation of the facility oil and gas industry and minimize the impact on the environment in the geopolitical conditions of the Arctic.The authors declare no conflict of interest

Download Full-text