WHRB Power Plant Automation & Electrical Integration for UltraTech Cement

A comprehensive engineering partnership delivering reliable waste heat recovery infrastructure for one of India's leading cement manufacturers.

Ultra Tech Cement Nathdwara: Strategic Energy Infrastructure

UltraTech Cement's Nathdwara Cement Works represents a major integrated manufacturing hub in Rajasthan's Sirohi District, operating sophisticated waste heat recovery infrastructure as a cornerstone of its comprehensive energy strategy. The facility's commitment to operational excellence and sustainable manufacturing drives its investment in advanced WHR systems, supporting both environmental responsibility and economic performance. The site's WHR capacity reaches 23 MW as documented in unit environmental statements, underscoring the critical importance of reliable WHR and captive power plant operations. This substantial generation capacity must maintain seamless alignment with cement production continuity, requiring sophisticated control systems and robust electrical integration to ensure stable, predictable performance under varying process conditions.

23 MW WHR Capacity - Total waste heat recovery generation capability

100% Integration - Aligned with cement operations

The Challenge: Beyond Equipment Supply

ISGEC Heavy Engineering undertook the supply of a comprehensive WHRB-based power plant package for this critical cement facility. However, the project requirements extended far beyond traditional equipment delivery. Modern WHRB implementations demand sophisticated integration of electrical systems and automation architecture, engineered to match the cement plant's specific operating philosophy while ensuring kiln stability, safe interlocks, smooth synchronization, and predictable power generation.

Operational Continuity

Maintain seamless alignment between WHRB power generation and cement production

processes without disruption to primary manufacturing operations

System Integration

Ensure electrical and automation systems work cohesively with kiln operations, including Pre-Heater (PH) and Air Quenching Cooler (AQC) heat sources

Safety & Protection

Implement robust interlocks and protection schemes that safeguard equipment and personnel under all operating conditions

Long-term Support

Establish sustainable technical partnerships rather than relying solely on OEM availability

for ongoing operational support

Strategic Partnership Approach

1. Faster Alignment

Accelerated coordination between WHRB package and existing plant operations

2. Commissioning Ownership

Strong accountability and hands-on execution during critical start-up phases

3. Long-term Supportability

Ongoing technical continuity and expert assistance beyond initial handover

UltraTech Cement made a strategic decision to engage an experienced technology partner rather than depending exclusively on original equipment manufacturers. This partnership model was deliberately chosen to deliver specific operational advantages that would ensure project success and long-term reliability. The client recognized that successful WHRB implementation requires more than equipment demands deep understanding of cement plant operations, rapid problem-solving capabilities, and committed ownership throughout commissioning and beyond. This approach represents a mature procurement philosophy focused on total lifecycle value rather than initial capital cost alone.

Engineering Excellence: Operation-First Design Philosophy

As ISGEC's trusted technology partner with 26+ years of collaborative experience, we delivered this project using an "operation-first" engineering approach. This methodology ensures the WHRB power plant performs smoothly from initial energization through decades of continuous service, prioritizing real-world operational reliability over theoretical design specifications.

Control Philosophy

Defined comprehensive operating sequences and control strategies aligned precisely with plant requirements and operational philosophy

Safety Systems

Engineered interlocks, protections, and permissives ensuring safe operation under process fluctuations and abnormal conditions

Automation Architecture

Developed integrated automation framework and field integration strategy for seamless WHRB/CPP package and plant interfaces

Our engineering team conducted extensive front-end engineering studies to understand the cement plant's existing control systems, operating procedures, and personnel capabilities. This thorough preparation enabled us to design solutions that integrated naturally into established workflows rather than forcing operators to adapt to unfamiliar paradigms.

System Integration & Site Execution

Coordinated Integration

Package interfaces between WHRB equipment, electrical distribution systems, and multiple automation layers required meticulous coordination. Our team managed these complex interdependencies to ensure seamless information flow and control continuity across system boundaries.

Field Readiness

Comprehensive instrumentation and I/O mapping, loop readiness verification, and functional checks were executed to match actual operating conditions rather than idealized design assumptions.

The site execution phase demanded close collaboration with multiple stakeholders including civil contractors, mechanical erectors, and client operations teams. Our experienced site engineers maintained clear communication channels and proactive issue resolution, preventing the delays and quality problems that often plague complex industrial projects.

Commissioning & Operational Readiness

The commissioning phase represents the critical transition from construction to productive operation. Our team approached this phase with structured methodology and unwavering focus on operational readiness rather than simply achieving mechanical completion. Every system was validated under realistic operating conditions, ensuring stable and predictable behavior before handover to plant operations.

Functional Validation

Comprehensive testing of all control sequences, interlocks, and protection systems under simulated and actual operating conditions

Operator Training

Hands-on guidance and knowledge transfer ensuring operations teams understood system

behavior and troubleshooting procedures

Documentation Package

Complete as-built drawings, operating procedures, maintenance guidelines, and technical references delivered at handover

Performance Stabilization

Extended support period ensuring system achieved routine operations with predictable, reliable performance behavior

Unlike vendors who disappear after achieving initial start-up, our commissioning team remained on-site through the critical stabilization period. This extended engagement allowed us to fine-tune control parameters, address unexpected interactions, and build confidence among operations ultimately delivering a system that operators trust and understand rather than merely tolerate.

Sustained Partnership: Beyond Commissioning

Post-handover, we continue working with the Nathdwara site as a genuine partner in progress. This ongoing relationship extends far beyond traditional warranty obligations, encompassing performance optimization, proactive troubleshooting, and continuous improvement initiatives that enhance system reliability and operational efficiency. Our sustained engagement model recognizes that industrial systems evolve over time as operating conditions change, equipment ages, and operational knowledge deepens. By maintaining active involvement, we help the plant realize the full potential of their WHRB investment while building institutional knowledge that strengthens their long-term capabilities.

• Technical Support

• Performance Analysis

• Optimization Services

• Continuous Improvement

This partnership approach delivers measurable value through reduced downtime, improved generation efficiency, and enhanced operational confidence. When issues arise, our team responds with urgency and expertise born from deep familiarity with the specific that generic service contracts cannot replicate.

Measurable Results: Operational & Business Outcomes

Smooth Commissioning

Achieved reliable transition into operations without extended troubleshooting periods or repeated failures common in complex power plant projects

Operational Alignment

Strong integration of WHRB power plant control behavior with cement plant operating strategy and existing procedures

Enhanced Reliability

Improved system stability through robust protections, comprehensive interlocks, and carefully engineered operating sequences

Business outcomes extended beyond operational metrics to encompass strategic advantages including reduced dependency on OEM availability through the partner-led execution model, stronger long-term support readiness through continuity of expert services, and improved plant energy strategy enablement through stable waste heat recovery-based generation integration. These benefits compound over time, delivering increasing value throughout the system lifecycle.

Engineering Partnership as Competitive Advantage

This project exemplifies how WHRB-based power plants achieve true operational success when automation, electrical integration, and commissioning are engineered around real plant merely equipment delivery specifications. The difference between adequate performance and exceptional reliability lies in the details of control philosophy, the robustness of protection systems, and the depth of operational understanding embedded throughout the engineering process.

The Traditional Approach

• Equipment supply focus

• Generic control strategies

• Limited commissioning support

• Vendor dependency

• Reactive troubleshooting

Our Partnership Model

• Operation-first engineering

• Customized integration

• Comprehensive commissioning ownership

• Long-term technical continuity

• Proactive optimization

By executing smoother commissioning aligned to UltraTech Nathdwara's specific operating strategy and continuing as an active support partner, we helped establish a reliable foundation for sustained high performance. The cement plant now operates with confidence that their waste heat recovery infrastructure will deliver predictable generation, respond safely to process variations, and continue improving through ongoing partnership collaboration.

"This case study demonstrates that the most valuable engineering partnerships are measured not in megawatts commissioned, but in years of reliable operation and continuous improvement achieved together."