Salient Technical features:

“Salient Technical Features of the equipment/systems/services covered in the IFB No. 40063227 dated 16.09.2016 are mentioned below. These Salient Technical features are mentioned only to facilitate the prospective bidder to prima-facie understand the requirements under the tender and shall not in any way limit or alter the scope of work and technical features/specification of equipment/system/services covered in the bidding documents. Detailed provisions in regard of scope of work and technical features/specification of equipment/system/services covered in the bidding documents shall be final and binding.”

The intent of the Renovation and Retrofitting of Existing ESPs is to reduce the particulate emission level to ≤ 50 mg/Nm3 to ensure compliance to Environmental Norms of state.

Brief scope consists of the following:

i.Renovation, Modernization and Refurbishment works of existing ESP and Augmentation & Retrofitting with additional collection area as per options- I OR II.

a)Option-I: Renovation, Retrofitting & Refurbishment of existing ESPs with rigid discharge frame work type design to meet the target objective.

b)Option-II: Renovation & Retrofitting of existing ESPs of rigid discharge frame work type in combination with Moving Electrode plate type of design ESP to meet the target objective.

ii.All civil works like foundation, structural works for new ESP and Ash Handling system of both the units including strengthening of the existing ESP structures and existing foundations, as required.

iii.Relocation of existing facilities at site.

iv.Any item including material/components/equipment/systems required for facilities needing relocation on account of renovation.

v.Replacement of existing ESP components, existing Transformer-Rectifier sets, Opacity monitor, hopper heaters with its accessories.

vi.Physical Flow Model testing of ESP.

vii.CFD Model testing of ESP.

viii.Engineering of complete microprocessor based control system.

ix.Supply of item / component on as required basis.

x.Supply of Mandatory spares as detailed in technical specification.

xi.Services like dismantling / repair / overhaul / retrofitting of various other components / systems / sub-systems as may be required, to ensure sustained, safe commercial operation, and to meet stipulated design / guarantee requirements and to meet the overall objectives of up gradation & renovation of ESP.

xii.The scope of work also includes erection of the equipment, commissioning, gas distribution testing, trial operation, Performance guarantee testing etc.

xiii.Inlet and outlet duct work along with supporting structure, foundation work for connecting the new fields to existing duct work.

xiv.Ash hoppers complete with accessories.

xv.Extension of existing control room if required to accommodate new ESP panels of new pass / field.

xvi.Ash Handling System for new ESP hoppers and interconnection of new ESP hoppers with existing ESP dry ash evacuation and conveying system.

xvii.Modification/ Repair/ Replacement of the existing Ductwork to arrest leakage between terminal points (APH outlet flange to Inlet of expansion joints at ID fan(s) inlet), based on condition assessment and also repairs of ESP casing, Hoppers etc. wherever required including replacement of bracing. The material required shall be in contractor’s scope.

xviii.Complete servicing/ repairing of the existing guillotine gates and dampers.

xix.Monorails with electrically operated hoists including monorail beams on the roof for handling transformer rectifier sets.

xx.Complete Thermal insulation lagging, cladding & refractory for new ESP fields and repair/replacement of existing ESP thermal insulation based on condition assessment.

xxi.All associated electrical and C&I work for ESP & AHP renovation works.