H.E.R.P.S — Hybrid Energy Recovery Pump System

H.E.R.P.S Revision D R2.0 — Re-Engineered as One Complete Industrial Pumping System

Revision D advances the H.E.R.P.S architecture through whole-machine engineering optimization. The design-development platform has been reconciled around hydraulic performance, rotating equipment, drive efficiency, pressure-energy recovery, electrical conversion, energy storage, thermal management, instrumentation, functional safety, structural integration, maintenance access and validation.

The primary engineering objective is to minimize lifecycle energy consumption per delivered cubic metre of water while maintaining required process flow, total dynamic head, hydraulic stability, reliability, safety, serviceability and plant operability.

Revision D therefore treats the pump, motor, hydraulic network, recovery turbine, generator, AFE/VFD, DC-link architecture, BESS, supercapacitor, cooling equipment, control system and supporting structure as one interconnected industrial machine.

Revision D Public Engineering Design Basis

Published development targets and calculated engineering values are part of the Revision D design-development basis and are not represented as guaranteed production performance until completion of the applicable engineering validation, testing, OEM selection and site-specific verification processes.

High-Efficiency Three-Stage Centrifugal Water Pump

The hydraulic centre of H.E.R.P.S is a horizontal three-stage centrifugal pump developed for industrial high-flow and high-head water-transfer applications. The Revision D governing design point is 150 L/s at 80 m TDH, equivalent to approximately 540 m³/h of rated process flow.

The multistage configuration distributes hydraulic energy addition through three pumping stages while supporting a variable-speed operating strategy. Revision D targets improved hydraulic efficiency, reduced internal parasitic loss, stable process control and coordinated integration with the drive, pressure boundary, instrumentation and recovery systems.

• Horizontal industrial three-stage centrifugal pump architecture
• 150 L/s rated process-flow design point
• 80 m rated total dynamic head
• 2,900 rpm nominal pump operating point
• Variable-speed operating architecture
• High-efficiency hydraulic development objective
• Integrated rotor, shaft, bearing, sealing and pressure-boundary engineering
• Condition monitoring and instrumentation integration

Variable-Speed Pump Control Instead of Routine Energy-Wasting Throttling

Revision D prioritizes variable-speed pump control as the normal method of matching machine output to process demand. Rather than relying on unnecessary continuous throttling, the main drive can regulate pump speed across its controlled operating envelope.

Control-valve operation remains available for pressure trim, hydraulic stability, minimum-flow protection and coordination of the energy-recovery path where required.

This system-level strategy is intended to reduce avoidable hydraulic losses while preserving process stability and operational control.

Hydraulic Pressure-Energy Recovery System

H.E.R.P.S incorporates a dedicated parallel hydraulic energy-recovery branch designed for installations where genuine excess process pressure would otherwise be dissipated through a pressure-reducing valve, regulator, restriction or equivalent pressure-control device.

Under suitable hydraulic conditions, a controlled proportion of the process stream may be routed through the recovery branch so that otherwise-wasted pressure energy can be converted into useful electrical energy.

The normal direct hydraulic process path remains available independently of the recovery system. Required plant flow, downstream pressure, pump stability and primary pumping duty always take priority over energy recovery.

Grid-Powered Industrial Architecture — No Self-Powering Claim

H.E.R.P.S Revision D is an externally powered industrial pumping system. The primary pump is supplied from the plant electrical system through its controlled motor-drive architecture.

Recovered hydraulic energy, battery storage and supercapacitor storage are supplemental elements used within normal conservation-of-energy limits. They may provide energy buffering, regenerative capture, transient support, peak management and ride-through functions where permitted by the validated control strategy.

H.E.R.P.S is not presented as a perpetual-motion, free-energy or self-sustaining power system.

Controlled Hydraulic Energy-Recovery Turbine

Revision D incorporates a purpose-developed recovery turbine architecture for operation in the parallel pressure-reduction branch. The turbine system is designed to operate only when recoverable hydraulic head is genuinely available from the connected plant.

The Revision D development baseline uses a low-head axial / Kaplan-inspired recovery concept with controlled guide-vane admission and revised runner architecture developed to improve hydraulic matching while eliminating conflicts present in earlier design generations.

Final blade surfaces, hydraulic throat geometry, runaway characteristics, efficiency mapping and vendor-specific construction remain subject to CFD, prototype testing and applicable validation controls.

Permanent-Magnet Recovery Generator & Active Rectification

Mechanical energy extracted by the hydraulic recovery turbine is converted through a permanent-magnet generator architecture and controlled active rectification system.

Recovered electrical energy can be coordinated with the H.E.R.P.S common DC architecture subject to hydraulic availability, DC-link conditions, system demand, storage state, electrical limits, thermal limits and functional safety constraints.

At the Revision D governing development point, nominal recoverable hydraulic power is calculated at approximately 9.91 kW with a nominal net recovered-electrical development target of approximately 8.25 kW. Actual recoverable power is installation-dependent and requires validated available pressure head.

160 kW High-Efficiency SynRM Pump Drive

The Revision D main drive architecture is based around a 160 kW liquid-cooled high-efficiency synchronous reluctance motor configuration integrated with variable-speed industrial motor control.

The SynRM architecture provides a high-efficiency magnet-free rotor option while supporting controlled pump-speed operation, thermal management and coordinated electrical integration.

• 160 kW-class pump motor architecture
• Liquid-cooled industrial drive system
• High-efficiency SynRM development baseline
• 400 VAC plant electrical interface
• Variable-speed normal process control
• Regenerative electrical architecture
• Integrated thermal and condition monitoring

Integrated AFE / VFD, DC-Link & Power Conversion Architecture

H.E.R.P.S Revision D integrates the main motor drive, hydraulic recovery generator, energy-storage interfaces and transient power systems through a coordinated industrial electrical architecture.

The platform incorporates a regenerative active-front-end variable-frequency drive architecture, a controlled common DC link, dedicated recovery rectification, bidirectional energy-storage conversion and redundant control-power systems.

• 400 VAC industrial plant input architecture
• Regenerative AFE/VFD drive class
• 750 VDC nominal common DC-link architecture
• Active recovery-generator rectification
• Bidirectional battery DC/DC interface
• High-power supercapacitor conversion
• Redundant 24 VDC control-power architecture
• Electrical monitoring, isolation and protective coordination
• Grid export disabled by default

Hybrid Battery Energy Storage & Supercapacitor Buffering

Revision D incorporates two complementary stored-energy technologies with different operating roles.

A modular LiFePO₄ battery energy-storage architecture provides controlled buffering, peak-management and ride-through capability, while a separate supercapacitor system is intended for short-duration high-power DC-link stabilization and regenerative energy capture.

Neither storage subsystem replaces the external plant power supply for sustained pumping duty.

Integrated 40 kW Thermal Management System

Thermal management is integrated directly into the H.E.R.P.S Revision D architecture. The baseline includes approximately 40 kW of installed thermal-management capability with demand-controlled cooling equipment.

Variable-speed coolant circulation and variable-speed air-moving equipment allow auxiliary consumption to respond to actual machine thermal demand rather than requiring continuous maximum-power cooling.

• 40 kW installed thermal-management capacity
• Liquid cooling architecture
• Variable-speed circulation pumps
• Demand-controlled EC cooling fans
• Heat-exchanger integration
• Temperature, pressure and coolant-flow monitoring
• Dedicated battery-cabinet thermal management

PLC, HMI, SCADA & Industrial Automation Architecture

H.E.R.P.S Revision D is designed as a fully instrumented industrial pumping platform with integrated PLC control, operator interface, remote I/O, communications, condition monitoring and system-level optimization.

The controls architecture coordinates the pump, variable-speed drive, hydraulic valves, recovery turbine, generator, thermal management, battery storage, supercapacitor system, instrumentation and safety systems while keeping required protective functions independent where appropriate.

Publicly Described Monitoring Functions Include:

• Main process flow
• Recovery-path flow
• Suction and discharge pressure
• Recovery turbine inlet and outlet pressure
• Pump speed
• Turbine speed
• Rotating-equipment vibration
• Bearing and equipment temperatures
• Cooling-system temperature and flow
• Motor electrical power
• Recovered electrical power
• DC-link voltage and current
• BESS power, state of charge and system condition
• Supercapacitor voltage and transient-energy state

System-Level Energy & Performance Optimization

Revision D evaluates H.E.R.P.S as an integrated pumping system rather than rating individual components in isolation.

Public-facing system optimization metrics include:

• Wire-to-water efficiency
• Pump hydraulic efficiency
• Hydraulic energy-recovery efficiency
• Total auxiliary electrical consumption
• Net system electrical demand
• Energy consumption per cubic metre pumped
• Control-valve pressure loss
• Recoverable pressure-head margin
• Thermal-system auxiliary demand
• Condition-monitoring trends

Functional Safety, Hardwired Protection & Cybersecurity

Revision D incorporates dedicated functional-safety and hardwired-protection architecture covering rotating equipment, hydraulic pressure, motor control, electrical conversion, stored energy, thermal conditions and supervisory controls.

Safety-critical protection is designed so that required protective functions do not depend solely upon high-level optimization software or normal supervisory communications.

The controls architecture also includes industrial network segregation and cybersecurity considerations for PLC, HMI, SCADA and remote communications.

Integrated Structural Skid & Industrial Package Design

H.E.R.P.S Revision D is organized as an integrated skid-mounted industrial package containing the primary hydraulic machine, drive equipment, recovery system, cooling system, electrical equipment, energy storage, control hardware and service infrastructure.

The maximum controlled package envelope is approximately:

10,400 mm L × 2,600 mm W × 2,400 mm H

The structural architecture incorporates equipment mounting, vibration management, lifting, guarding, anchoring, pipe support and maintenance-access considerations as part of the coordinated machine design.

Designed for Industrial Serviceability & Maintenance Access

Revision D explicitly prevents packaging optimization from blocking the removal and service envelopes of major equipment.

Pump rotor, seals, bearings, motor, turbine, generator, valves, cooling equipment and electrical cabinets are treated as maintainable industrial systems requiring controlled access, isolation and removal capability.

The maintenance philosophy supports:

• Continuous condition monitoring
• Routine operator inspection
• Condition-based maintenance
• Planned outage maintenance
• Post-trip engineering inspection
• Post-maintenance alignment and functional testing
• Pressure-system inspection
• Electrical stored-energy isolation
• BESS and supercapacitor safety procedures
• Component removal and replacement planning

Potential Industrial Applications

H.E.R.P.S is intended as an engineering platform for industrial and infrastructure pumping applications where high-volume water movement, variable-speed control and process-pressure management are required.

Hydraulic energy-recovery potential is installation-dependent. A plant must contain genuine otherwise-wasted hydraulic pressure head for the recovery subsystem to have recoverable energy available.

Comprehensive Revision D Engineering Blueprint Documentation

The H.E.R.P.S Revision D engineering package is supported by a comprehensive controlled documentation architecture spanning the complete machine and its principal engineering disciplines.

The current controlled documentation register contains 112 supplied files covering master engineering references and H.E.R.P.S Volumes 00 through 24, including multi-sheet blueprint groups for major subsystems.

Engineering Disciplines Represented in the H.E.R.P.S Package

Public Product Overview vs. Purchaser Engineering Package

This public H.E.R.P.S product page presents the system architecture, principal engineering philosophy, public design basis, subsystem scope and Revision D development objectives.

Detailed purchaser documentation contains substantially deeper engineering information that is intentionally not reproduced on the public website.

Detailed Purchased Engineering Documentation May Include:

• Detailed engineering blueprint sheets
• Subsystem engineering documents
• Controlled dimensional information
• Assembly and interface documentation
• Hydraulic engineering information
• Rotating-equipment engineering records
• Electrical and control-system documentation
• Structural and installation engineering information
• Engineering validation requirements
• Testing and commissioning frameworks
• Maintenance and service documentation
• BOM, procurement and configuration-control records

Proprietary build-critical geometry, manufacturing detail, tolerances, component interface data, internal engineering calculations, control implementation data and other protected technical information are not disclosed on this public page.

Revision D Engineering Status

H.E.R.P.S Revision D R2.0 is a controlled engineering design-development baseline.

The project distinguishes between engineering information that is internally locked, development-baseline information, validation-controlled information, OEM-controlled information and site-controlled information.

Validation-Led Engineering Development

Revision D incorporates a formal validation process covering hydraulic behaviour, pump performance, energy recovery, rotating equipment, pressure containment, electrical systems, thermal systems, functional safety, battery safety, structural engineering, installation interfaces and commissioning.

Final hydraulic surfaces, guaranteed efficiencies, turbine runaway behaviour, pressure-wall design, bearing selections, supplier-specific dimensions, electrical protective settings, certified BESS construction and final site foundation engineering remain subject to their respective analysis, OEM, test and site controls.

What Makes H.E.R.P.S Revision D Different?

H.E.R.P.S is not simply a centrifugal water pump with a generator attached.

Revision D is a coordinated industrial pumping architecture in which hydraulic performance, variable-speed control, pressure management, recoverable-energy availability, electrical conversion, stored energy, thermal management, automation, maintenance and safety are evaluated together.

• Primary pumping duty always comes first.
• The direct hydraulic process path remains available.
• Variable-speed operation is preferred over unnecessary routine throttling.
• Hydraulic energy recovery operates only when genuine excess pressure exists.
• Energy storage provides buffering rather than fictitious continuous energy production.
• Controls optimize the complete machine rather than isolated subsystems.
• Serviceability and maintenance access are designed into the machine architecture.
• Unvalidated engineering details remain controlled instead of being represented as fabrication-final.

Industrial Water Pump Engineering, Hydraulic Energy Recovery & High-Efficiency Pump System Design

The H.E.R.P.S Revision D blueprint system combines engineering disciplines associated with industrial centrifugal water pumps, three-stage pump systems, high-head water transfer, variable-frequency pump drives, synchronous reluctance motors, hydraulic pressure recovery, energy-recovery turbines, regenerative motor drives, industrial BESS integration, supercapacitor energy buffering, PLC pump control, SCADA monitoring, hydraulic instrumentation, thermal management, structural skid design and industrial pumping-system optimization.

For engineers, technical developers, researchers, system integrators and industrial design teams evaluating advanced pumping and pressure-energy-management concepts, H.E.R.P.S provides a structured multi-volume engineering design-development platform rather than a simplified single-drawing pump concept.

Engineering Blueprint License & Permitted Use

H.E.R.P.S engineering documentation is supplied subject to the specific Blueprints Market product license and associated terms and conditions.

Purchasers are responsible for ensuring that any modelling, development, testing, construction, manufacturing, installation, commissioning or operation complies with the applicable license, professional engineering requirements, safety obligations, local laws, codes, standards and regulatory approvals.

Product documentation does not replace project-specific certified engineering, supplier-certified equipment data, jurisdictional approval or professional engineering responsibility.