Analysis of annual energy consumption of air conditioning systems, calculated on the basis of probabilistic-statistical climate model

Malyavina, Elena; Malikova, Olga

doi:10.1088/1757-899x/451/1/012104

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…Depending on the adopted air treatment scheme in the AC unit, the area of possible combinations of temperature and relative humidity in the construction area should be divided into weather zones in the I-d diagram [13]. This area can be approximately limited by lines of constant relative humidity φ = 100% and φ = 15%, as well as by a line of constant heat content equal to the calculated enthalpy of the outside air in the warm season.…”

Section: Methods Of Calculationmentioning

confidence: 99%

“…In each weather zone, a point of outdoor air is plotted according to the average parameters of the outdoor air for the zone: enthalpies Im i, kJ/kg and moisture content dm i, g/kg, determined according to the tables made on the basis of preliminary computer calculations [13,14]. With the parameters of the outdoor air characterized by this point, the instantaneous flow rates of heat, cold, water and electricity are determined by the formulas [14,15,16,17].…”

Section: Methods Of Calculationmentioning

confidence: 99%

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Method of power consumption calculation of air conditioning systems on the basis of probability-statistic climate model

Malikova

2020

E3S Web Conf.

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The article discusses the methodology for calculating the annual, seasonal and monthly consumption of heat, cold, electricity and water for air conditioning systems based on the temperatures and enthalpies of outdoor air averaged for each weather zone during the working day according to a probabilistic-statistical climate model. The article contains a brief description of the engineering methodology for quick manual calculation of resource consumption with a comparison of the results when using simplified tables of climatic information about weather zones of various external air purification in devices of the central air conditioning system. An example of calculating the annual costs for a system controlled by the "optimal modes" method according to the direct flow scheme with a bypass of the humidification chamber and the controlled process in the air cooler is studied. The advantages of the proposed engineering method lie not only in accuracy, but also in that it allows you to consider the operation of the installation during the year with greater detail for each air purifier. It is shown that the simplified procedure is suitable for use, since it gives discrepancies with machine calculation, which is no more than 10%, which is acceptable for engineering practice.

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Section: Methods Of Calculationmentioning

confidence: 99%

Section: Methods Of Calculationmentioning

confidence: 99%

Method of power consumption calculation of air conditioning systems on the basis of probability-statistic climate model

Malikova

2020

E3S Web Conf.

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Application of Ventilation Systems with Increased Efficiency

Malikova

2022

Lecture Notes in Networks and Systems

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Determination of the Annual Energy Consumption by the Ventilation Systems of the Restaurant’s Kitchen

Malikova

2021

IOP Conf. Ser.: Mater. Sci. Eng.

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The purpose of the article is to assess the impact of each of the methods used by engineers for calculating air exchange in a hot kitchen workshop on the energy consumption of ventilation systems. The calculation was carried out using six methods for determining the air flow rate removed by local kitchen hoods. For computer modeling of energy consumption, a probabilistic-statistical climate model and a universal PC program were used. which has been built according to the data of primary observations at the Moscow weather station for 30 years. The repeatability of combinations of the climate parameters is given for the cells with a 2 °C temperature step and a step of 5 % of the relative humidity. The content of the model represents a table of 19x37 cells. Significant discrepancies in the results of calculating exhaust hoods using different methods determine the need for experimental research and the creation of a generalized method. The efficiency and economy of its operation depends on the choice of the method for calculating the exhaust hood. Since the polluted air removed by local kitchen hoods must be compensated for, the air handling unit is forced to clean and warm up huge volumes of air, which increases both the capital costs of equipment and operating costs for the consumption of electricity, heat/cold. The discrepancy in energy consumption by supply and exhaust ventilation units operating in a ranges: from 6 to 97 % for electricity, from 6 to 63 % for heat, from 14 to 30 % for cold.

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Analysis of annual energy consumption of air conditioning systems, calculated on the basis of probabilistic-statistical climate model

Cited by 3 publications

References 3 publications

Method of power consumption calculation of air conditioning systems on the basis of probability-statistic climate model

Method of power consumption calculation of air conditioning systems on the basis of probability-statistic climate model

Application of Ventilation Systems with Increased Efficiency

Determination of the Annual Energy Consumption by the Ventilation Systems of the Restaurant’s Kitchen

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