Load Calculations & Energy Analysis

At MOLTEN, we believe the success of any HVAC system starts with accurate load calculations and in-depth energy analysis. Our expert team applies international standards and advanced modeling tools to ensure your systems are designed with the right capacity—never oversized, never undersized.

A poorly sized HVAC system leads to higher costs, inefficient operation, and discomfort for occupants. That’s why our Load Calculations & Energy Analysis service provides the scientific foundation for every HVAC design.

By combining climate data, occupancy patterns, internal heat gains, and building envelope analysis, we determine the exact heating and cooling requirements for your space. The result: a system that is optimized for performance, energy efficiency, and long-term savings.

• • Cooling & Heating Load Calculations – Using ASHRAE standards and simulation software to determine accurate peak and part-load demands.

• • Energy Modeling & Simulation – Analyzing building performance under different conditions to optimize design decisions.

• • Ventilation & Airflow Requirements – Balancing fresh air, humidity, and indoor air quality for healthy spaces.

• • Equipment Sizing Support – Ensuring right-sized chillers, VRF/VRV systems, AHUs, and ductwork based on actual load.

• • Renewable & Sustainable Options – Evaluating opportunities for energy recovery, solar integration, or green building compliance.

• • Dynamic Analysis – Studying seasonal variations, part-load performance, and energy consumption patterns.

• • Life Cycle Cost Analysis – Assessing total operational and maintenance costs to guide smart investment decisions.

• • ASHRAE-Standard Approach: We follow globally recognized methodologies.

• • Advanced Tools: Latest simulation and BIM-integrated load calculation software.

• • Energy Savings: Proven track record in reducing operational costs.

• • Sustainability Integration: Designs aligned with LEED and other green building certifications.

• • Client Confidence: Transparent reports and actionable recommendations.

Ventilation System Design

At MOLTEN, we design ventilation systems that go beyond compliance. Our solutions ensure indoor air quality, comfort, and energy efficiency, while meeting the latest standards for health and safety.

A building is only as healthy as the air inside it. Poor ventilation can lead to stale air, excess humidity, and the spread of contaminants, directly affecting occupant health, comfort, and productivity.

MOLTEN’s Ventilation System Design services integrate the latest standards (ASHRAE, SMACNA, local codes) with smart airflow planning, filtration, and energy recovery technologies. Whether for commercial towers, industrial plants, or specialized environments, our designs deliver clean air with maximum efficiency.

• • Fresh Air & Exhaust System Design – Balanced airflow for optimal indoor air quality (IAQ).

• • Pressurization Systems – Stairwell and lift lobby pressurization for fire safety compliance.

• • Smoke & Fume Extraction – Critical for industrial spaces, kitchens, and emergency safety systems.

• • Humidity & Moisture Control – Designing systems to prevent mold, condensation, and indoor air issues.

• • Filtration & Air Cleaning – Incorporating HEPA, carbon filters, and advanced purification.

• • Energy Recovery Systems – Heat recovery ventilation (HRV) and energy recovery ventilation (ERV) for sustainability.

• • Demand-Controlled Ventilation (DCV) – Smart systems that adjust airflow based on occupancy sensors, reducing energy waste.

• • Specialized Applications – Clean rooms, laboratories, cold rooms, and healthcare environments.

• • Standards-Driven Design: Compliance with ASHRAE, SMACNA, NFPA, and regional codes.

• • Tailored Solutions: Designs customized for project type, climate, and occupancy.

• • Energy-Efficient Ventilation: Optimized systems with ERV/HRV and demand-control features.

• • Integrated Approach: Coordination with HVAC, fire safety, and building systems.

• • Proven Expertise: Successful projects across UAE, India, and beyond.

Ductwork Design & Layout

At MOLTEN, we design ductwork systems that deliver balanced airflow, energy savings, and long-term reliability. From concept to construction drawings, our designs ensure smooth operation and compliance with international standards.

The efficiency of an HVAC system depends heavily on how air moves within a building. Poor duct design can lead to energy losses, noise, uneven airflow, and higher operating costs.

MOLTEN’s Ductwork Design & Layout services combine aerodynamic design principles, advanced simulation tools, and code compliance to deliver quiet, efficient, and cost-effective duct systems. Whether it’s a high-rise commercial tower, hospital, or industrial facility, our designs ensure air reaches where it’s needed most—without compromise.

• • Duct Sizing & Optimization – Using velocity reduction and equal friction methods for accurate airflow.

• • Layout Design & Routing – Smart routing to minimize resistance, avoid clashes, and optimize space.

• • Static Pressure Calculations – Ensuring balanced distribution across all supply and return points.

• • Noise & Vibration Control – Incorporating silencers, flexible connections, and acoustic treatments.

• • Leakage Prevention & Energy Efficiency – Sealing techniques and airtightness compliance for energy savings.

• • Fire & Smoke Dampers Integration – Safety-first designs for fire-rated ducting and compartmentalization.

• • Sheet Metal & Insulation Specifications – Material selection for durability, insulation, and condensation prevention.

• • 3D BIM & CAD Drafting – Clash-free coordination with other building services.

• • Standards Compliance: ASHRAE, SMACNA, NFPA, and regional duct design standards.

• • Precision Engineering: Accurate airflow distribution backed by simulation tools.

• • Integrated Approach: Ductwork aligned with HVAC, electrical, and fire safety systems.

• • Energy-Focused Designs: Leakage prevention, pressure drop minimization, and smart routing.

• • Proven Expertise: Large-scale projects executed across UAE, India, and global markets.

Plumbing & Drainage Design

At MOLTEN, we design plumbing and drainage systems that ensure safety, efficiency, and sustainability. From water supply to waste management, our solutions are engineered to meet today’s needs and tomorrow’s challenges.

A well-designed plumbing and drainage system is the backbone of any modern building. Beyond comfort and convenience, it plays a critical role in health, safety, and environmental sustainability.

MOLTEN’s Plumbing & Drainage Design services integrate innovative engineering, water conservation strategies, and global standards to create systems that are not only functional but also eco-conscious. From high-rise towers to hospitals and industrial facilities, we design systems that ensure reliable supply, efficient usage, and safe disposal.

• • Water Supply System Design – Sizing of piping networks, pumps, and storage tanks for consistent water delivery.

• • Drainage & Wastewater Systems – Gravity and pressurized drainage design with code compliance.

• • Stormwater Management – Designing systems to prevent flooding and ensure efficient rainwater runoff.

• • Hot Water & Centralized Systems – Design of solar water heating, boilers, and circulation loops.

• • Water Conservation Solutions – Greywater recycling, rainwater harvesting, and low-flow fixtures.

• • Pumping Stations & Equipment Selection – Hydraulic calculations and equipment integration for efficiency.

• • Fire Water & Hydrant Network Coordination – Integration with life safety systems.

• • 3D BIM & CAD Drafting – Coordinated layouts to avoid clashes with other MEP services.

• • Global Standards: Designs aligned with IPC, UPC, ASHRAE, NFPA, and regional codes.

• • Sustainability Focus: Integration of rainwater harvesting, greywater recycling, and green plumbing.

• • Integrated Engineering: Seamless coordination with HVAC, fire protection, and electrical systems.

• • Proven Reliability: Designed for long-term performance with minimal maintenance.

• • Project Experience: Delivered for commercial, residential, industrial, and healthcare sectors.

HVAC Equipment Selection

At MOLTEN, we don’t just design systems—we help you select the best-fit HVAC equipment for your project. Our expert selection process ensures maximum efficiency, durability, and compliance with performance standards.

Even the most advanced HVAC design can fail without the right equipment. Oversized or undersized units, wrong efficiency ratings, or poor integration can lead to higher energy costs, frequent breakdowns, and reduced comfort levels.

MOLTEN’s HVAC Equipment Selection service ensures that every piece of equipment—whether it’s a chiller, AHU, VRF system, or pump—is carefully chosen based on calculated loads, system design, and operational requirements. We align each selection with ASHRAE standards, local regulations, and sustainability goals.

• • Chiller Selection & Sizing – Air-cooled and water-cooled chillers optimized for project requirements.

• • Air Handling Units (AHUs) & Fan Coil Units (FCUs) – Selection based on airflow, cooling load, and noise levels.

• • Variable Refrigerant Flow (VRF/VRV) Systems – Energy-efficient solutions for flexible zoning.

• • Pumps & Hydronic Equipment – Proper pump sizing, head calculations, and efficiency optimization.

• • Cooling Towers – Selection for water-cooled systems with focus on efficiency and water conservation.

• • Ventilation & Exhaust Fans – Correctly rated fans for airflow, pressure, and acoustic control.

• • Package & Rooftop Units – Compact and efficient systems for commercial and industrial applications.

• • Controls & Automation – BMS integration and smart controls for energy optimization.

• • Engineering-Driven Approach: Equipment selected based on actual load calculations—not assumptions.

• • Vendor-Neutral Expertise: We recommend the best equipment for your project, not tied to specific brands.

• • Sustainability Focus: Preference for high-efficiency systems (LEED, Estidama, and green building compliance).

• • Future-Ready Designs: Scalable and adaptable selections to support long-term usage.

• • Global Standards: Compliance with ASHRAE, AHRI, SMACNA, and regional codes.

BIM Modeling for HVAC Systems

At MOLTEN, we leverage Building Information Modeling (BIM) to deliver accurate, coordinated, and efficient HVAC system designs. Our BIM-driven approach ensures zero clashes, faster execution, and optimized building performance.

Traditional 2D drawings often leave room for coordination errors, clashes, and cost overruns during construction. BIM revolutionizes this process by creating 3D intelligent models that integrate HVAC systems seamlessly with architectural, structural, and MEP services.

MOLTEN’s BIM Modeling for HVAC Systems combines engineering expertise with advanced digital tools like Revit, Navisworks, and AutoCAD MEP to deliver designs that are accurate, coordinated, and construction-ready.

With BIM, we help clients visualize the system, optimize layouts, reduce waste, and achieve long-term operational efficiency.

• • 3D HVAC Modeling – Intelligent duct, pipe, and equipment modeling with accurate specifications.

• • Clash Detection & Coordination – Identifying and resolving conflicts with structural, electrical, and plumbing systems before construction.

• • Detailed Shop Drawings & Fabrication Models – Ready-to-use drawings for site execution.

• • Quantity Take-Off (QTO) & Cost Estimation – Accurate material quantities and cost forecasting.

• • Energy & Performance Simulation – Integration with energy analysis tools for sustainable design.

• • As-Built BIM Models – Creating digital twins for future facility management.

• • LOD (Level of Development) Flexibility – Models delivered from LOD 100 (concept) to LOD 500 (as-built).

• • Coordination with Other Services – Seamless integration with architecture, fire safety, plumbing, and electrical services.

• • Engineering + Digital Expertise: Our HVAC designs are engineered first, then enhanced with BIM precision.

• • Clash-Free Models: Early detection of issues ensures smooth site execution.

• • Cost & Time Savings: Optimized layouts reduce material wastage and rework.

• • Future-Ready: Models support digital twins for facility management and long-term operations.

• • Global Standards: BIM delivered in compliance with ASHRAE, SMACNA, ISO 19650, and regional codes.