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15ТЕХНИЧЕСКИЕ НАУКИ
CALCULATION OF THE SPECIFIC ENERGY CONSUMPTION IN RAW
SILK PRODUCTION Hoshimov F.A.1, Bakhadirov I.I.2
'Hoshimov Fozildzhon Abidovich - Doctor of Technical Sciences, Professor, Head of the Laboratory, INSTITUTE OF ENERGY AND AUTOMATION, ACADEMY OF SCIENCES OF THE REPUBLIC OF UZBEKISTAN; 2Bakhadirov Ilyos Ismailovich - Assistant to Electro supply chair, POWER FACULTY, TASHKENT STATE TECHNICAL UNIVERSITY, TASHKENT, REPUBLIC OF UZBEKISTAN
Abstract: in article it is recommended, the methodical scheme of a ricochet is based on probabilistic methods. As Isodkny information serve daily measurements: it is the minimum interval of time for which in conditions of production there are operational data of operation - production, an expense of the electric power, data on qualitative indexes of raw materials, etc. All calculations are given on the example of the Namangan silk winding factory IP Verigrow Ipagi. Are compared a specific expense of the electric power of the corresponding actual and planned productivity according to long-term data for the Namangan shelkomotalny factory IP Verigrow Ipagi.
Keywords: electrical facilities, regulations of the electric power, production, auxiliary needs, mean-square mistake.
Progressive, science-based rules of power consumption allow to estimate the level of exploitation of power engineering, uncover and realize untapped reserves, to plan electricity supplies in perspective. However, there are no indications on the methods of electricity rationing in the technical literature and departmental materials concerning the production of raw silk. Day period measurements selection (working day) necessitates averaging the energy consumption of data on days-off for the corresponding amendments to the per diem measurements. According to the metering devices there is made a daily balance of electricity by consumer groups. Here are the following races electricity-moves: According to it the following consumption groups are distinguished a) for supporting the needs
(lighting, water, air and exhaust ventilation, etc.) - W1; b) for reeling machine - W c) for
A a
ventilation - Wv Average values W1 u W^ determined for the five business days according to the
A a
data with an average performance (P ). Standard error of the mean calculated from the formula:
C
V = — ■ 100, (1) x
Determine the most probable limits of the average daily performance deviations ( P ) and in accordance with the average value of the specific energy consumption and its standard deviation using the formula:
ad =
(Z d - d )2 p
^ '_I_I (2)
(n - l)n£ P
Having values d1, we find a correction for the ventilation work. To do this, you must determine the total power consumption for ventilation on the counter or the actual data by calculation [1].
Given that the number of hours of ventilation and number of included units are different for each period of the year, we introduce the time of switching-on, given to the full performance of the entire ventilation:
,1 = W, (3)
P,
where P - total power consumption of all supply fans, kW.
Expected value x1 can also be determined on the basis of the operating data and forecasts for the current period. Correction for ventilation operation will be:
AJ P -
Ad = -v-, (4)
n
and accordingly complete energy consumption per 1 kg of raw silk:
d2 = d + Ad, (5)
Bearing in mind that the main factor affecting the value of the specific energy consumption is T1 , we find the analytical dependence d = f (T) p
Taking output during operation without ventilation (t) and with it (T ), respectively equal to
P1 and P2 and considering that P = At h P2 = AT (where A - hour factory productivity) and h
T1 + T1 = Tpa6, after appropriate transformations we obtain:
d1T1 + d2Tl T d = ——-2—, or d = d + Ad-, (6)
T1 T T work
where Twor£ - the monthly fund of working time.
For Namangan filature SP «Verigrow Ipagi» with technological machines such as Fy 2000 NT
with average values of pF = 450 kg / day, Wdaj = 3380 kWh / day (without B) and P = 86 kW
correction for ventilation will be 8.64 kWh / kg. The value of the norm is found from the following ratio:
dpl(npl)= df (nf )± [d(nf )-d(npl)]+ Ad+ Wsav- Waux , (7)
work pl
Where d^ (fl^ ) - the average value of the specific energy consumption at the actual average daily performance, kWh / kg (without ventilation) (.. see fig. 1) is taken equal to the value of d1 from (7); d(flf ), d(n ;) - specific consumption of electricity by the curve d=f(U), corresponding to the
actual and planned performance, kWh/kg (without ventilation); T1 - - For long-term data for SP «Verigrow Ipagi» Namangan filature is on average 3120 hours / year.
References
1. Hoshimov F.A., Allaev K.R. Energosberezhenie na promyshlennyh predpriyatiyah. Tashkent: Izd-vo «Fan», 2011. 209.
2. Gofman G.B. Normirovanie potrebleniya ehnergii i ehnergeticheskie balansy promyshlennyh predpriyatij. M. L. EHnergiya, 1966. 320.
