Mobile Derivational Micro-HPP for Reserve Water Supply and Standby Power Service of Recreation Facilities and Harbour Installations of Russky Island

S / Sažeci Based on the analysis of natural and climatic characteristics and development prospects of Russky Island, there were detected the need for additional supply of water and seasonal activities for the touristic recreational facilities, including port facilities. There was proved the application of new technical solutions regarding use of the mobile derivational micro-HPP for seasonal water-supply of facilities and recreational infrastructure of the Russky Island with reduced ecological environmental impact. Achieved justifying calculations of sections for the derivational water pipeline with soft shells, defined by their parameters for a range of pressures 9,81 ... 490,5 кPа. Numerical simulation in Ansys 15.0 of program module Static Structural showed them sufficient convergence with the results of analytical formulas (1) (4) with static analysis The maximum deviation was equal to 12%, which is acceptable in the case of large deformations. In the future, depending on the data it will be used for pre-calculation of the two-shelled soft water pipe configuration. The results of numerical modeling of the hydraulic conditions of oneand two-chambered shells made in the program Ansys 15.0 allow to make a conclusion that on the areas with a length of more than 30 m and an inclination of 30o on the line of the pipeline, twisting of single-shelled water pipeline occurs, so more optimal is to use two-shelled construction, which will provide higher reliability of operation of the derivational water pipeline. REFERENCES / Literatura 1. Maslennikov B. G. Peter the Great Bay. Vladivostok: the Far Eastern Book publisher, 1956. – 76 p. 2. Decree of the Government of Russia No. 201 of 31 of March 2010 “On the development of a tourist-recreation special economic zone on the territory of Ryssky Island, Vladivostok urban district, Primorsky Krai” 3. http://apec.primorsky.ru/ 4. Mostovaya O. Megawatts for a Russian. ‘Electric power. Transmission and distribution’ No. 4 (13), «Kabel» Book publisher – Moscow – 30-33pp. http://old.eepr.ru/2012/08/24/chitajte-v-chetvyortom-nomere-zhurnalaelektroenergiya-peredacha-i-raspredelenie-za-2012-god 5. Guremina N.V. Enviromental state and prospects for the recreation development of Russky Island in the Peter the Great bay (the Sea of Japan)// data of the first interregional conference ‘Modern problems of regional development” – Birobidzhan: book publisher: IRPIA EB RAS, 2006 – 18-20pp. 6. http://www.pandia.ru/text/77/151/5874.php 7. Moshenko A.V. Geographic position and hydrological regime of the Peter the Great bay//Regional portal “Primorsky Krai, Russia” (http://www.fegi.ru/ PRIMORYE/SEA/gidro.htm). 2002 8. Kasharin D. V., Kasharina T. P., Godin P. A., Godin M. A. Use of pipelines fabricated from composite materials for mobile diversion hydroelectric power plants//Power Technology and Engineering. 2015. Т. 48. No 6. С. 448452. 9. The application for the invention RU МPК Е02В9/02 No2015106761. Integral mobile diversion conduit and method of construction. date of filing 26.02.2015 10. Kasharin D.V. Protective engineerring structures of composite materials in hydroeconomic construction: monograph]/ Novocherkassk YuRGTU, 2012, 343 p. 11. ANSYS mechanical APDL guide structural analysis. ANSYS, Inc., 2012. – С. 841-1110. Figure 5 Numerical simulation of the section of derivational water pipeline of 30 m length and a slope surface along its route 30o Slika 5. Numerička simulacija dijela derivacijskog vodenog cjevovoda duljine 30 m i površina nagiba od 30o a, b respectively single-shelled and two-shelled water pipeline. a b


Summary
The article considers the problems of justification of derivational micro-HPP usage for reserve water supply and standby power service of harbour installations for Russky Island.The first part of the article describes the justification of the power supply necessity for recreation facilities and yachting harbour installations (marinas) on Russky Island, including the prospect of their further development and new construction activities.The second part of the article considers the justification of innovative technologies usage of mobile derivational micro-HPP for recreation facilities and harbour installations power supply.The third part of the article deals with the principal design parameters for calculation of composite mobile diversion conduit and its cable-stayed system schemes which are used to fix the diversion conduit in light of wind effects.The forth part of the article shows the simulation modeling of the diversion conduit.
According to a study of Stratievsky O.B., Guremin O.B. and others, the bays on the west part of the island are the most important for the tourist-recreational zone.They include: the Novik bay, the Babkina bay, the Rynda bay, the Philippovsky bay, the Voevode bay, the Boyarin bay.Their waters are not deep (about 2,8 m), well protected against southeast monsoon winds prevailing during the summer time and have developed gravel beaches and valuable recreational and bio-reproducing offshore areas.It's valuable to use such bays as New Djigit and Ostrovnaya that are well protected against wind and have beach zones.Together their recreational capacity may be about 5000 people [5].
In order to widen the recreation zone and to provide recreation with the minimum negative ecological effect on the environment it's necessary to build well-furnished camp cities and recreation bases that have their pontoon berthing structures or joint use marinas in the prospective to provide small-sized promenade boat traffic, yachting, different kinds of powerboating sports and etc. Marinas must provide the following services: moorage in the water, shore storage, sanitary complex services (lavatory, shower, laundry); collection of wastes and bilge water from yachts and powerboats; filling up with provisions and stores, fuels, water; light repair services for small-sized crafts; reception of guests' yachts; options (yacht charter, marine practice for young people, professional sport and amateur competitions and others) [5,6].
Due to the planned increase of tourist attractions on the island it's necessary to foresee sources of water and power supply having the minimum negative ecological effect on the environment, maneuverable (smoothing unequal daily electrical energy use, uprising of peak loads), providing with decentralized power supply with the minimum costs of their building.Hydroelectric power plants meet these requirements most closely.Further, let us consider the justification of hydroelectric power plants constructions, adapted to natural and climatic conditions of Russky island.

PART 2 / Drugi dio
The climate of the island is characterized by steady monsoon winds and has the highest rainfall intensity in summer.In autumn the weather is warm, there is little or no rainfall, sunny days predominate.Severe frosts and winds can be observed (from 6 to 15 m per sec and faster) in winter [7,8].According to the orohydrographic characteristics, the central part of the island is mountainous.Its highest mountains are: Russkaya (291m); Glavnaya (279); Centralnaya (251m).The outskirts and coastline of the island represent a range of bluff rocky areas and beaches with lagoons and isolated lakes.Hydrographic networks include 24 brooks and the minor river Russkaya belonging to the Far East type.Its slope is 160 m.The water catchment area is 18 sq m, width -4 m, mid depth -up to 1 m, length -10 km and annual river flow -0,23 cum/cm.During high tides the water downstream becomes brackish due to seawater penetration from the Voevode bay with a salt content of 32%.All streams are covered with ice from November-December to March-April.
Summer is the most comfortable period for water sports, the temperature of the seawater is about 22-25 °С.Autumn is preferable for yachting and water transport.Total duration of the recreation period is 155 days [8].
Due to the fact that the majority of existing and planned recreation areas (including tourist camps, berthing structures and marinas) belong to low energy intensity consumers (from Figure 1 Location of civil infrastructure facilities on Russky Island Slika 1. Lokacija civilnih infrastrukturnih sadržaja na Ruskom otoku 20 to 100 kW) with the highest amount of water and energy consumption in the summer-autumn period and which are located near minor mountain rivers estuaries, it appears optimum to use diversion HPP.
Since existing "hose" derivational micro-HPP constructions provide power up to 16 kW, they don't guarantee sufficient reliability during their exploitation because of hose wrenches and damages, and in the process of traditional diversion HPP erection it is necessary to build protective constructions.Laying diversion conduits with use of heavy construction equipment causes deforestation along their line and a significant negative effect on the environment, it is necessary to develop an engineering solution for seasonally operated diversion microHPP.
It is thought that a water-storage scheme will be the most optimum because it is suggested to use microHPP data under the conditions of large daily inequality of water and power supply for low energy intensity objects.According to the scheme, water dumping (some volume of water) is carried out from a river into an upstream pool, then, water dumping is carried out into a downstream pool which functions as a cleanwater reservoir.
Since it is assumed the use of these micro-HPP under conditions of considerable daily unsteadiness, if water and energy supply purposed for the facilities of low energy intensity, the most optimal will be scheme of Pumped-Storage Electric Power Plant.In accordance with this scheme in turbine mode, it is made diversion of part of the water from the river, which is directed into the upper reservoir, after that it passes through the derivational water pipeline and the turbines; it is removed into the lower reservoir, which may serve as a reservoir of clean water.In the hours of low power consumption micro-HPP works in pumping mode, pumping water from the lower reservoir to the upper reservoir, accumulating energy to cover peak loads.
Currently, we have developed a new technical solutions for mobile derivational micro-HPP in complete with the composite derivational water pipeline made of composite materials (Fig. 2) [9].Operation of the mobile derivational micro-HPP passes as follows (Figure 2b).Water from a small water course enters the upper reservoir 19, then through the siphon water intake 20 it flows by gravity into a soft dual-chamber water pipeline consisting of water supplying section 2 (Figure 2a), while at the expense of the inner shells 5 and cross connections 7 it is occurred damping of transverse circulation, also the inner coating 6 protects them from abrasive wear.And the inner shell 5 is protected by outer shell 4.
When crossing of uneven terrain and landslides by route water pipeline, it is necessary to install cable system 8 and the flexible single shelled pipeline made of stronger material further reinforced with pipe shells.The dynamic effect of the wind on its lateral surface is perceived by additional stay ropes 11 (Fig. 2, c, d).When the height of water is more than 100 m, it is provided hard water pipeline made of glass fibers impregnated with binding substances based on unsaturated polyester resin, followed by curing and reinforced with bandage.In the case of water hammer when there is emergency changing of the flow rate, it is necessary to use of hydraulic shock damping device.After the energy utilization when passing through hydroelectric set 14, the stream is released through a diffuser 17 in the lower reservoir 18.Let us make comparative analysis of the use of soft single-chamber or double-chamber pipelines used as an upper part of the derivational water pipeline and the justification for the calculated positions to determine their parameters.

PART 3 / Treći dio
In determining the initial cross-section parameters of the singleshelled soft water pipeline, which has supporting on horizontal plane over all its length, we take into account only the internal hydrostatic pressure.The shape of its cross section is described by two Euler elastics -the upper and lower module elliptic integrals which are located in the following range  The upper elastic can move relatively the lower one so, that the starting point of the lower elastic (α = 0) and the upper endpoint (α = π) are on the same vertical.Further, when making composition from the lower elastic its initial section is remained.The initial position of the coordinate axes for the initial section remains.For upper elastic it is appointed a new coordinate system, the beginning of which goes to the border of the lower elastic [8,10].
Parametric equations of upper elastic will have the following form: where k ≤ form of the lower thread will represent elastic of the second kind, while 1 1  k > -elastics of the first kind.For the upper thread, we accept the coordinate system where 2 x and 2 y -coordinates of the point of the upper thread, m; 2 h -the distance the most remote point of the upper thread, m; 2 ( ) .
Taking into account the geometric meaning of the parameters, it is easy to notice that in the general case, when the crosssection at the reference point is broken, The sectional shape of the shell is determined by the set of equations ( 1) -( 4).The conjugation conditions of two threads should be added to these equations, i.e., the boundary conditions at the reference point: In the absence of fracture at the reference point, i.e., in the case of the smooth contour of the cross-section, another boundary condition should be added to these two: Of those already considered values, being included in the task, first of all it is necessary to emphasize as a major and subject to determination are the following: modules α and 2a α ), the distances 1 h and 2 h , the coordinates of the reference point 1a x , 1a y , 2a x 2a y .Cross-sectional area of the shell bounded by the two threads (by the axis of the wall), in the case of a smooth contour, is determined by the formula: Useful cross-sectional area, taking into account the fact, that the wall thickness is small compared to the size of the cross section, it is permissible to determine the approximate formula: where 1 S and 2 S -length of the upper and lower thread, respectively, m; 1 δ -the distance from the lower thread to the inner surface of the shell, m; 2 δ -distance from the top thread to the inner surface of the shell, m.
Axial perimeter of the shell's cross-section is determined by the formula: Using equations ( 1) -( 4) and ( 5), (6) in the range of internal pressures from 9.81 to 490.5 kPa, which corresponds to a pressure change in the water pipeline of the derivational HPP at heights of 2 to 50 m there were obtained transversal contours of single-chamber (Figure 4a) and outer shells of two-chamber (Figure 4b).These transversal contours were used for numerical simulation of hydraulic conditions of one-and two-chamber soft water pipelines.

PART 4 / Četvrti dio
To determine the comparative analysis of the hydraulic conditions of the single-shelled and the two-shelled water pipelines, as well as their stress-strain state there was completed the numerical simulation program Ansys 15.0.
The models represent the sections of water pipeline of 30 m length 30m on the surface, fixed in the upper part of the siphon water intake in the perimeter of cross-section having a coefficient of friction between the shell and the surface -0.3 and the inclination angle to the horizontal plane -30o.
The simplest case of steady motion, when the pressure is in the range of 1.5 to 3 m in the initial section of water pipe-line, was under consideration.
As the initial cross-sections, there were taken shapes of single-shelled and two-shelled water pipelines variable regarding length depending on the pipeline's internal overpressure (Figure 4).
After creation of a 3-D model in the module of Static Structural of environment ANSYS Workbench, the form data were tested under static condition.To simulate, the contact between the shell and the base, there was set up using target surface, which was a base for the contact surface, presenting a shell.Since the shell is not fixed, the boundary condition is effected by restriction of movements of the base in all directions [11].
The results of the comparison of the received data on the analytical dependences and the results of numerical simulations were satisfactory, since the deviation from the horizontal vertical projection of cross-section of a shell for the single-shelled water pipeline was less than 8%, and less than 12% for two shelled water pipeline.Then, for the flow of water using module Fluid CFX based on the same geometric model there were calculated speed and the hydrodynamic pressure on the wall of the single-shelled and two-shelled water pipeline.They were then re-applied as external loads on the module to determine the Static Structural deformations, including those associated with the transverse torsion of the water pipeline.
Examples of the results of research of single-and twoshelled water pipeline with the same perimeters on the outer shell of 0.4 m are shown in Figure 5.
As seen in Figure 5 at a distance of 12 m, it happens twisting of flexible single-shell water pipeline (Figure 5a), which will requires when it is applied, extra fixtures in inaccessible mountains.At the same time two-shelled water pipeline as seen in (Figure 5, b) does not curl and the deformation is within the limits of elastic.In this regard, despite the greater amount of material, safe operation of the waterway, will be provided and the length of the sections can be increased The work is carried out by the authors in the framework of the agreement № 14.

ABSTRACTS / Sažeci
Based on the analysis of natural and climatic characteristics and development prospects of Russky Island, there were detected the need for additional supply of water and seasonal activities for the touristic -recreational facilities, including port facilities.
There was proved the application of new technical solutions regarding use of the mobile derivational micro-HPP for seasonal water-supply of facilities and recreational infrastructure of the Russky Island with reduced ecological environmental impact.
Achieved justifying calculations of sections for the derivational water pipeline with soft shells, defined by their parameters for a range of pressures 9,81 … 490,5 кPа.Numerical simulation in Ansys 15.0 of program module Static Structural showed them sufficient convergence with the results of analytical formulas ( 1) -( 4) with static analysis The maximum deviation was equal to 12%, which is acceptable in the case of large deformations.In the future, depending on the data it will be used for pre-calculation of the two-shelled soft water pipe configuration.
The results of numerical modeling of the hydraulic conditions of one-and two-chambered shells made in the program Ansys 15.0 allow to make a conclusion that on the areas with a length of more than 30 m and an inclination of 30º on the line of the pipeline, twisting of single-shelled water pipeline occurs, so more optimal is to use two-shelled construction, which will provide higher reliability of operation of the derivational water pipeline.

Figure 3
Figure 3 Layout drawing of cross-section of the water pipeline shell made of elastics.Slika 3. Plan presjeka ovojnice vodenog cjevovoda izrađene od elestičnih traka

x 1 and y 1 -
the coordinates of the lower thread, m; h 1distance of the farthest point of the lower thread to the surface of the filling, m; E 1 (φ; k 1 ) and E2 (φ; k 1 ) -elliptic integrals of the first and second kind, respectively; k 1 -elliptic integral module (module elastics); N 1 -The upper thread tension, kN / m φ -angle φ = α 1 / 2; α 1 -the angle between the tangent to the thread, and the abscissa degrees.The values of 1x , 1 y , 1 α , ϕ the reference points:When making outlines of the lower thread by equations (4.19), (4.20), the parameter φ needs to receive values in the range

2 2 2 O
x y .Parametric equations of upper elastic will look like:

N 2 k
, E 1 (φ; k) and E 2 (φ; k) -elliptic integrals of the first and second kind, respectively; -module of elliptic integral (module of elastic); 2 N -The upper thread tension, kN /m; 2 α -the angle between the tangent to the thread and axis the reference point:

1 k and 2 k , values of parameters 1 a ϕ and 2 aϕ
(or, respectively, values of the angles 1a

Figure 5
Figure 5 Numerical simulation of the section of derivational water pipeline of 30 m length and a slope surface along its route 30º Slika 5. Numerička simulacija dijela derivacijskog vodenog cjevovoda duljine 30 m i površina nagiba od 30º a, b -respectively single-shelled and two-shelled water pipeline.