Reconstruction of Cogeneration Plant PETROTEL – LUKOIL

Written by dragos on . Posted in CompletedProjects

The investment is necessary as to supply power and heat for the chemical platform Lukoil-Teleajen.During the first stage it is provided to be erected a power unit – condensation and extraction type – of 32 MW to be supplied initially from the existing boilers; during the second stage it is provided to be erected a steam boiler of 260 t/h – 540o C running on:

  • main fuel: refinery coke
  • start-up and stand-by fuel: refinery gas, fuel oil and natural gas.

The new turbine-generator of 30 MW is located along the existing turbine house 3 x 12 MW, by extending it with 5 bays; the electrical substations required for unit operation are located in the extension of the existing intermediate building.

The reconstruction of the cogeneration plant implies the rehabilitation of existing buildings as well as new buildings:

arrangements of existing buildings:

  • turbines house
  • intermediate building
  • boilers house.

new buildings:

  • turbine house extension
  • intermediate building extension
  • coke, lime, ash and slag handling plants including feeding belts, discgarge towers, taking over towers, silos, storages, crushing stations, electrical substations.

The architecture works provided both for existing buildings and for new buildings are meant to create the optimum operation conditions and spaces according to the norms in force concerning emergency situations in case of fire and labor security and health.

Services offered:

  • general designer (documents for Urbanism Certificate, permits, basic design, PAD/PAC (demolishing-construction design permits) documents, detail design, as-built documents
  • consulting services
  • technical assistance during contracting and execution stages
  • buildings behavior monitoring in time.

Estimated technical performances:

  • Total Ac = 6.230,00 m2;
  • Total Ad = 17.890,00 m2;
  • Total V = 150.000,00 m3.

Buildings importance category: B (special) and C (normal)
Buildings importance classes: I and II
Buildings fire hazard category: C, D and E.
Buildings fire resistance degree: II

Country and location:

Romania, Prahova county, Ploiesti town

Client:

S.C. PETROTEL LUKOIL S.A.

Start/Completion date (commissioning):

2006 – project under progress

Rehabilitation of Ion Creanga area – sector 2 – Bucharest – water

Written by dragos on . Posted in CompletedProjects

ISPE prepared two projects including:

1.

    • Achievement of approx. 7 km of sewerage networks and approx. 1.5 km water supply networks for 20 streets in the area Ion Creanga – sector 2 – Bucharest; water networks are made of high density polyethylene tubes and the sewerage networks have diameters ranging between ND 300 – ND 1400 mm and are made of PVC (polyvinyl chloride) tubes, respectively PAFSIN (sand insertion glass fibers reinforced polyester) for diameters higher than ND 500 mm.
    • On the route of water networks valve manholes, hydrants and branching have been provided up to the property limit and on the sewerage networks route there have been provided inspection chambers, sewerage network direction changing chamber, slope breaking manholes, slope breaking and power dissipating chambers, discharge opening and connections up to the property limit.

2.

  • Achievement of sewerage and water supply networks for 5 streets in the area Ion Creanga – sector 2 – Bucharest; water networks shall be made of high density polyethylene tubes and the sewerage networks of PVC (polyvinyl chloride) tubes.
  • On the route of water networks valve manholes, hydrants and branches have been provided up to the property limit and on the sewerage networks route there have been provided visiting manholes, slope breaking manholes, slope breaking rooms, discharge opening and connections up to houses and .

Services provided:

  • Consulting
  • Permits.
  • Basic design.
  • Construction permit project.
  • Detail design.
  • Technical assistance.

Country/Location:

Romania, Bucharest, district  2

Client:

Bucharest Municipality
EGIS Romania
Final client: APA NOVA – Bucharest

Project start/completion date:

Both projects are under progress.

Iasi II CHPP – Modernization of 27 thermal distribution substations

Written by dragos on . Posted in CompletedProjects

The design is related to the modernization of thermal distribution substation including process control system, rehabilitation of buildings and of technological, electrical, sanitary and heating installations. The design includes also the solution of converting some thermal distribution substations in thermal modules and their connecting directly to the primary heat transmission system, the design of these modules and of the connections to water, sewerage and electricity facilities.

For thermal distribution substations which are not converted in thermal modules the design provides the rehabilitation of distribution networks.

Thermal distribution substation modernization:

The modernization of the thermal distribution substation considered the working parameters and constructive characteristics of the district heating system of Iasi municipality so that the technological diagram of each thermal distribution substation to fulfill the following functions:

  • operation under two thermal and hydraulic conditions during winter and summer
  • temperature lowering on primary heat carrier return pipe as low as possible as to improve operation efficiency of the source and of the transport networks
  • mixed control of quality and quantity through flow hourly variations for pumping energy saving.

Thermal distribution substation process control system:

The process control system will fulfill the following functions:

  • temperature control of the heat carrier for heating according to outside temperature and preset control schedule
  • tap hot water temperature control at constant level
  • automated operation of installations pertaining to thermal distribution substation including the possibility of adjusting load curves, real time programming and energy low consumption operation
  • automated operation of make-up installations within the secondary heating circuit with algorithm for heat carrier massive losses detecting, make-up signaling and stopping.

The above mentioned functions will be ensured through a programmable controller which will take over the following functions, as well:

  • data reading from heat meters and sending through M-BUS system to the area dispatche
  • remote transmission of thermal distribution substation operation parameters
  • detecting, signaling, remote transmission of emergencies, fires, burglary, floods
  • heat carrier pumps state remote transmission.

Rehabilitation of thermal distribution substation buildings, technological, electrical, sanitary, heating installations.

Solution adopted:

  • masonry, floors, hydro-insulation and closings recovery
  • recovery of existing lighting, power, water, sewerage, heating installations.

Thermal modules:

  • the documentation for thermal modules location includes all data necessary for their procurement, erection and commissioning. The thermo-mechanical and process control diagram is a series-parallel diagram. For each thermal modules it is provides hydraulic balancing of pertaining blocks
  • the documentation includes all connections for utilities as to ensure thermal modules operation under good conditions.

Primary transport thermal connections:

The documentation includes all elements necessary for the damaged connecting pipes replacement works within primary network of thermal distribution substations as well as new primary connections for thermal modules supplying. The rehabilitation of primary connection is performed by means of pre-insulated pipes erected directly in earth provided with thermal insulation moisture detecting and data transmission cable.

Distribution thermal networks:

The documentation for the modernization of distribution networks pertaining to each thermal distribution substation will be prepared after their resizing and provides the use of pre-insulated pipes.

Services offered:

  • permitting documents
  • basic design, bid documents, detail design, documents for installing permit according to ISCIR prescriptions in force
  • technical, economic and financial consulting technical assistance.

Estimated efficiency:

  • heat losses reduction in primary transport networks, in thermal distribution substations and secondary distribution networks as not to exceed 5% of the heat amount yearly supplied
  • heat carrier losses reduction in transport and distribution networks as not to exceed 0.5 % of the total volume of installations
  • decreasing expenses for repairs, maintenance and operation for transport and distribution networks and thermal distribution substation.

Country and location:

Romania, Iasi municipality

Client:

Iasi CHPP

Start/completion date (commissioning):

October 2005 – November 2006

Buzau Municipality utilities development – District Heating Systems

Written by dragos on . Posted in CompletedProjects

The project “Municipality utilities development – heating systems in Buzau city” was performed under the Loan Contract concluded on April 13, 1997, between the European Bank for Reconstruction and Development (EBRD) and the Romanian Government, represented by the Ministry of Finances. This Contract assumes EBRD’s partial financing of the works necessary for rehabilitating a part of Buzau city heating system.

Works performed:

  • upgrading of 7 existing heat centralized distribution substations
  • erection of 17 block of flats thermal substations
  • upgrading of 6 thermal plants upgrading
  • rebuilding of secondary thermal networks of heat distribution substations and of upgraded thermal plants
  • execution of the primary connection thermal networks for the new 17 heat substations
  • partial rebuilding of the district heating main pipeline II and of the primary networks connected to it
  • achievement of a complex operation monitoring system for the above installations
  • heat meters erection on each block of flats based on the savings resulted both from EBRD loan and from Romanian
  • contribution the project has been extended with works for the reconstruction of networks pertaining to heating main pipeline II based on modern technologies
  • maximum heat/hour demand of the modernized areas (heat central distribution substations, thermal substations, thermal plants) is summing up: 108 MWt
  • total length of the rebuilt and upgraded secondary thermal networks represents 23.4 km
  • total length of the rebuilt and upgraded primary thermal networks represents 15 km
  • number of heat meters erected at the block of flats is about 600 pieces.

Main technical solutions adopted for the heat central distribution substations and thermal plants consist in:

  • replacing of tube heat exchangers with plate heat exchangers in the heat distribution substations
  • replacing of all old equipments in the heat distribution substations (pumps, water supply tanks, expansion vessels, process control equipment) with new high performance ones
  • achieving 17 heat distribution substation for block of flats and erecting 17 thermal modules fully equipped and provided with process control systems including heat meters
  • replacing old boilers and equipment with new ones of high efficiency and high performance auxiliary equipment
  • equipping all heat distribution substations and thermal plants with I&C complex systems for heat supply control which can be driven from area dispatcher centres
  • erecting softening plants for preparing the make up water of secondary circuits in all heat distribution substations, thermal substations and thermal plants.

The technical solutions adopted for the upgraded areas are related to:

  • replacing old pipes with pre-insulated pipes, both the primary and the secondary networks
  • using preinsulated pipes curved in the factory as to avoid expansion loops
  • monitoring system performance providing the surveillance and control of the insulation condition of the pre-insulated pipes and the location of any failure as well as the surveillance of the heat supply system operation by raising the parameters of the heat distribution substations of the thermal plants and of those from blocks of flats
  • erecting heat meters in special rooms of the blocks of flats or in special inspection chambers in their neighbourhood and taking over measurements by the monitoring system.

Services provided:

  • feasibility study
  • basic design and technical specifications
  • detail designs
  • presenting the documentations for approval together with the client
  • subcontracting works coordination and approval
  • technical assistance during works performance.

Energy/efficiency:

Reducing heat losses and increasing energy efficiency by introducing plate heat exchangers and heat meters which lead to an yearly saving of 127.000 Gcal.

Location:

Buzau Municipality – Romania

Client:

RAM Buzau

Project start/completion date:

1996 starting date
Stage I – 1999-2000;
Stage II – 2004-2005
Curent status: Stage I – 100%; Stage II – 50%

Rehabilitation and extension of Information and Educational Center

Written by dragos on . Posted in CompletedProjects

Brief description:

The investment objective is promoting the rehabilitation works and extension of the activities space of Information and Educational Center C.I.E. Sulina, as well as the necessity of improving the techniques and interpretation of subjects, in correlation with the measures resulted from Romania commitments during adhering process, especially from implementing the Directive 90/313/EEC provisions regarding public access to information about environment, as well as implementing the Directive 90/43/EEC provisions about natural habitats and wild life conservation.
Considering the significant development of tourism in Sulina area there is necessary a rehabilitation of the Information and Educational Center C.I.E. Sulina, thus to provide the necessity of ARBDD to increase the information and awareness level regarding value but also the vulnerability of Biosphere Reservation Danube Delta.
The purpose of these works is to accomplish a unitary treatment of the apartment working spaces as well as from the extended space from the point of view of endowments, comfort and inside and outside aspect of the Center.

Services offered:

The project has developed the following stages:

  • feasibility study
  • technical specifications
  • detail engineering
  • consultancy during bidding period.

Estimated technical performances:

  • extension of Conference Hall
  • re-dividing of the facilities space
  • making the information and exhibition spaces
  • remaking the hydro-insulations
  • interior design and furniture.

Country and location:

Romania – Tulcea county – Sulina town

Client:

Administration of Biosphere Reservation Danube Delta

Start/Completion date (commissioning):

Designing period: 6 months
Execution period: 12 months

Waste water plant modernization in Adjud Municipality

Written by dragos on . Posted in CompletedProjects

The feasibility study describes the works necessary for the achievement of water water plant of Adjud Municipality.

The plant has been sized considering:

  • the standard for the designing of constructions and waste water treatment plants NP 032-1999;
  • number of equivalent inhabitants (EI): 26.000;
  • flows:
    • Qday-average = 3900 m3/day;
    • Qday-maximum = 4680 m3/day;
    • Qhour-maximum = 292.5 m3/h;
    • Qhour-minimum = 49 m3/h;
  • specific loads per equivalent inhabitant (EI):
    • solid matters in suspension – 70 g/EI and day;
    • CBO5 – 65 g/ EI and day;
    • total nitrogen– 11 g/ EI and day;
    • total phosphorous – 2,5 g/ EI and day;
  • quality parameters imposed by the current standards (NTPA011/2005).

The waste water treatment plant is a compact plant including:

  • mechanical treatment stage;
  • biologic treatment stage with active sludge where secondary and tertiary water treatment is simultaneously performed;
  • sludge treatment stage.

The solution of compact treatment plant ensures the following advantages:

  • ensures the required treatment degree by observing the quality conditions imposed for discharging by the standard NTPA 011-2005;
  • more efficient secondary settling by installing lamellas;
  • using air-lift type pumps or sludge removing pumps through compressed air which are simple, reliable and do not need maintenance; this technology ensures long time wear-less operation;
  • using easily detachable component such as membrane aeration tubes, pumps and mixers allowing rapid replacement of damaged parts under operation;
  • due to high performance technological process no sludge in excess is removed so that sludge treatment costs are cut;
  • all equipment are made of stainless steel and no issues related to water or sludge action on components occur;
  • the ultraviolet disinfection performed in UV type system is advantageous as compared to chlorination solution which lead to toxic compounds in receiving water environment; the disinfection plant ensures an efficiency up to 99% as far as total coliforms are concerned.
  • sludge dehydrating plant ensures volume reduction and the conditions of conveying and storing;
  • the process control system ensures plant reliability.

Services provided:

Feasibility study.

Estimated technical performances:

The table below includes quality main indices of waste water at treatment plant inlet and outlet.

Crt.No. Indices Treatment plant inlet Treatment plant outlet
1 CBO5 65 g/EI and day < 25 mg/l
2 CCO – < 125 mg/l
3 Total suspensions 70 g/EI and day < 35 mg/l
4 Ammonia – < 3 mg/l
5 Total nitrogen 11 g/EI and day < 15 mg/l
6 Total phosphorus 2,5 g/EI and day < 2 mg/l

Country and location:

Romania, Vrancea county, Adjud

Client:

Adjud Municipality

Project start/completion date:

Start designing works: March 2008
Finish designing works: May 2008

110 kV and 220 kV bays overhaul and upgrading – 220/110/20/6 kV FAI substation

Written by dragos on . Posted in CompletedProjects

The 220/110 kV FAI substation is an important power node, having in view its multiple functions, such as the power injection ensurance from the zonal power transmission grid to the power distribution grid of Iasi city, ensuring the power distribution to the consumers of power, discharged from the transmission system and from local power supplies and representing, along with the 220/110 kV Munteni substation, the only power supplies for the geographical area between Iasi, Birlad and Pascani.

The 110 kV and 220 kV substations rehabilitation operation consists of capital repair works and upgrading works, aiming to bring this connection and transformer substation to an appropriate technical level, in terms of the substation power importance.

The works, pertaining to the substation upgrading, are related to the new 110 kV and 220 kV bays or to those with a new location, due to the upgrading operation.

The rehabilitation works will be performed by stages, using the “step by step” method, maintaining the actual constructive arrangement, simultaneously with the upgrading works for the control – supervisory-protection system.

Assuming the importance of 220/110 kV FAI substation for NPS, the end-user requested the ensurance of a raised degree of reliability in supplying the power consumers of the zone, throughout the performance of the rehabilitation works.

The Project provided, in this respect, the following:

  • provisional works in the primary and secondary circuits of the 110 kV substation
  • provisional works on 110 kV OHLS
  • by the Project-adopted works staging program, the reducing to minimum of the number and duration of decommissioning operations for the existing circuits and the feature of making redundant some power supply ways.

The Project is meant to achieve a new, outdoor-type substation, provided with modern, reliable and performing equipment, including all arrangements and auxiliary installations.

The new 220/110 kV substation will be outdoor-type, air-insulated and it will be performed, at both voltages, with a double bus-bar system, under a flexible variant.

In the 110 kV substation, the circuit-breakers will be arranged on 2 rows, each side of the bus-bar spans and in the 220 kV substation, the circuit-breakers will be arranged on one row. The overhead, flexible connections will be made of aluminum-steel, flexible conductors, supported to frames by double insulator strings, of composite material.

The primary equipment location was established in such a way that it shall allow the access to equipment, requiring more frequent maintenance works, in compliance with the electrical insulation and protection clearances, according to the norm requirements and without de-energizing some parts of the substation. In this respect, the existing roads, under-crossing the 110 kV bus-bar system 1, will be dismantled and it will be built up two new road segments, within the CR works, between the circuit-breakers row and that of the current transformers, placed each side of the bus-bar spans.

There were also built new road segments for accessing the voltage transformers and surge arresters, installed on the 110 kV and 220 kV lines, as well as on the storage platform.

The connection of the existing 200 MVA-220/110 kV auto-transformers of the substation to the pertaining 110 kV bays, was performed via:

  • one cable-inlet connection, with single-phase, 110 kV, XLPE-insulated cable and provided with outdoor, dry-type sealing ends, for AT1
  • one overhead connection, made of flexible conductors supported by centrifuged reinforced concrete frames, for AT2.

Supplied services:

  • basic design and tender documents for civil and mounting works performance, for 220 kV and 110 kV primary circuits, 1 kV cable network, civil works, outdoor electrical lighting and sewage installations, land arrangements and roads
  • detail design
  • technical assistance.

Estimated technical performances:

  • bringing the 220/110 kV FAI substation to a technical level appropriate to the zone and the project energy importance, using the worlds state-of-the art technique
  • ensurance of a increased degree of safety and reliability in supplying the zonal power consumers throughout the period of upgrading works performance and the equipment lifetime as well.

Estimated economic efficiency:

  • ensurance of power transfer and supply for the power system, with the specified and regulated indicators and parameters and under safety and continuity conditions
  • reducing of maintenance costs.

Country and location:

Romania, Iasi city, Iasi district

Client:

Energomontaj SA – IEA Bucharest Subsidiary

Start / Completion date (commissioning):

09.08.2007 – under progress

Reparație capitală și modernizare celule 110 kV și 220 kV – Stația FAI 220/110/20/6 kV

Written by dragos on . Posted in CompletedProjects

Stația 220/110 kV FAI reprezintă un nod energetic important, având în vedere funcțiile ei multiple, cum ar fi asigurarea injecției de putere din rețeaua zonală de transport în rețeaua de distribuție a municipiului Iași, distribuția la consumatori a puterii debitată din rețeaua de transport și sursele locale, și reprezintă, împreună cu stația 220/110 kV Munteni, singurele surse de alimentare pentru aria geografică dintre Iași, Bârlad și Pașcani.Reabilitarea stațiilor de 110 kV și 220 kV constă în lucrări de reparații capitale și lucrări de modernizare, având ca scop aducerea acestei stații de conexiuni și transformare la un nivel tehnic corespunzător importanței stației din punct de vedere energetic.

Lucrările aferente modernizării stației se referă la celulele de 110 kV și 220 kV noi sau care, cu ocazia reabilitării, vor fi avea un nou amplasament.

Lucrările de reabilitare se vor realiza etapizat, prin utilizarea metodei “pas cu pas”, cu păstrarea actualei dispoziții constructive, simultan cu cele de modernizare a sistemelor de comandă – control-protecție.

Având în vedere importanța stației de 220/110 kV FAI pentru SEN, clientul final a solicitat asigurarea unui grad sporit de siguranță în alimentarea consumatorilor zonali pe durata execuției lucrărilor de reabilitare. În acest scop, prin proiect s-au prevăzut:

  • provizorate în circuitele primare și secundare din stația de 110 kV
  • provizorate în linii de 110 kV
  • prin programul de eșalonare a execuției lucrărilor adoptat prin proiect, reducerea la minim a numărului și duratei scoaterilor din funcțiune a circuitelor existente și posibilitatea de rezervare a unor căi de alimentare.

Proiectul are drept scop realizarea unei stații noi, de tip exterior, prevăzută cu echipamente moderne, fiabile și performante, inclusiv a tuturor amenajărilor și instalațiilor conexe.

Noua stație de 220/110 kV va fi de tip exterior, cu izolație în aer și va fi realizată la ambele tensiuni, cu sistem dublu de bare colectoare în varianta flexibil.

În stația de 110 kV întreruptoarele vor fi dispuse pe 2 rânduri, de o parte și de alta a câmpurilor de bare colectoare, iar în stația de 220 kV întreruptoarele vor fi dispuse pe un rând. Legăturile flexibile aeriene se vor realiza cu conductoare flexibile oțel-aluminiu, susținute de cadre prin lanțuri duble de izolatoare din material composit.

Amplasarea aparatelor primare a fost astfel stabilită încât să permită accesul la echipamentele cu frecvență mai mare a lucrărilor de întreținere, cu respectarea distanțelor electrice de izolare și de protecție în conformitate cu prevederile normative și fără scoaterea de sub tensiune a unor părți din instalație.

În acest scop, drumurile existente pe sub conductoarele sistemului 1 de bare colectoare 110 kV vor fi dezafectate și se vor construi în cadrul lucrărilor de RK două tronsoane de drum noi între șirul întreruptoarelor și cel al transformatoarelor de curent, amplasate de o parte și de alta a câmpurilor de bare colectoare.

De asemenea, pentru accesul la transformatoarele de tensiune și descărcătoarele montate pe linii 110 kV și 220 kV, precum și la platforma de depozitare, s-au realizat tronsoane de drum noi.

Racordul autotransformatoarelor 200 MVA-220/110 kV existente în stație la celulele aferente de 110 kV s-a realizat prin:

  • un racord realizat în cablu monofazat de 110 kV cu izolație XLPE și cutii terminale de exterior de tip uscat, pentru AT1
  • un racord aerian, realizat cu conductoare flexibile, susținute de cadre de beton armat centrifugat pentru AT2.

Servicii oferite:

  • proiect tehnic și caiete de sarcini pentru execuția lucrărilor de construcții-montaj pentru: circuite primare 220 kV și 110 kV, gospodăria de cabluri 1 kV, construcții, instalații electrice de iluminat exterior și canalizare, amenajări de teren și drumuri
  • proiectare de detaliu
  • asistență tehnică.

Performanțe tehnice estimate:

  • aducerea stației de 220/110 kV FAI la un nivel tehnic corespunzător impotanței zonei și obiectivului din punct de vedere energetic, utilizând tehnica actuală pe plan mondial
  • asigurarea unui grad sporit de siguranță în alimentarea consumatorilor zonali, atât pe durata execuției lucrărilor de reabilitare, cât și de-a lungul întregii durate de viață a instalației.

Eficiența economică estimată:

  • asigurarea tranzitului și furnizării energiei electrice în sistemul energetic cu indicatorii și parametrii de calitate specificați și reglementați și în condiții de siguranță și continuitate
  • reducerea cheltuielilor de mentenanță.

Țara și zona de amplasare:

România, municipiul Iași, jud. Iași

Numele clientului:

Energomontaj SA – Sucursala IEA, București

Data demarării / finalizării proiectului (punere în funcțiune):

09.08.2007 – în curs

Modernization of waste water collecting and treatment system in Ploie?ti Municipality

Written by dragos on . Posted in CompletedProjects

ISPE within this project investment developed the followings:

  • extension of sewerage network in North-East and South areas of Ploie?ti Municipality;
  • works for improving the discharging systems existing in sewerage networks pertaining to C1 main collector;
  • works for rehabilitation and consolidation of banks pertaining to artificial channel by-passing the town treatment plant which is discharging in Dâmbul stream.
The design includes the achievement of approx. 16 km of sewerage networks pertaining to 56 streets. The sewerage networks have diameters ranging between ND 300 – ND 1100 mm provided to be performed of PVC (polyvinyl chloride) tubes respectively PAFSIN (sand insertion glass fibers reinforced polyester) for diameters higher than ND 500 mm.

The works at discharging systems included unsilting works and performance of discharge sills as to ensure their good operation. At the same time it has been considered the elimination of tap waste water discharges (due to household illegal branches) directly to Dâmbul stream. To avoid the erosion of right bank of by-pass channel in front of town treatment plant it has been provided embankment protection by placing sand bags.

Services provided:

Basic design.
Construction permit design.

Country and location:

Romania, Prahova county, Ploie?ti – North-East and South areas

Client:

Ploie?ti Municipality

Start / Completion date:

Start designing works: January 2007
Finish designing works: May 2008 (technical project)

Associated company:

SC ROMAIR CONSULTING LTD