top of page
HVAC Design, Cooling Load


Decarbonizing High-Rise HVAC Systems: The Engineering Shift to Heat Pumps, Electrification, and Low-GWP Refrigerants
Decarbonizing high-rise HVAC is no longer optional—it’s a competitive advantage. By integrating heat pumps, electrified systems, and low-GWP refrigerants, engineers can significantly cut emissions while improving efficiency. This shift is transforming HVAC design into a carbon-driven, high-value engineering discipline.
nexoradesign.net
Mar 184 min read


Heat Recovery Chillers: Turning Waste Heat into Engineering Profit
Heat recovery chillers transform wasted energy into real value. Instead of rejecting heat, they reuse it for hot water and heating, cutting energy costs and boosting system efficiency. A smart engineering approach that turns HVAC systems from cost centers into profit-generating assets.
nexoradesign.net
Mar 173 min read


Decarbonized Hydronic Systems: The Future of Low-Carbon Heating and Hot Water
CO₂ (R-744) heat pump water heaters are transforming hydronic heating systems by replacing fossil-fuel boilers with efficient electric technology. The heat pump extracts heat from ambient air and transfers it to water stored in a tank. Circulation pumps distribute this hot water to radiators, fan coils, radiant floors, and domestic hot water outlets, significantly reducing building carbon emissions while maintaining high heating performance.
nexoradesign.net
Mar 166 min read


Advanced Indoor Air Quality (IAQ) Ecosystems: The Future of Healthy Buildings
Indoor Air Quality (IAQ) has become a critical engineering priority in modern buildings. Advanced IAQ ecosystems integrate MERV 13+ filtration, UV-C air purification, and real-time pollutant monitoring into smart HVAC systems and building dashboards. These technologies work together to continuously detect contaminants, optimize ventilation, and deliver cleaner, healthier indoor environments for occupants.
nexoradesign.net
Mar 166 min read


Passive Cooling Strategies for Buildings
Passive cooling strategies can reduce HVAC load, improve comfort, and cut energy use when applied correctly. Learn how shading, thermal mass, natural ventilation, and climate-responsive design work in real engineering practice.
nexoradesign.net
Mar 169 min read


Heat Recovery Systems in HVAC Explained
Heat recovery systems capture energy from exhaust air and reuse it to condition fresh air. Learn how HRV, ERV, and heat wheels improve HVAC efficiency and reduce energy costs.
nexoradesign.net
Mar 155 min read


Energy Recovery Ventilator Design Guide
Designing an ERV is not just about adding a heat exchanger to the ductwork. This guide explains ERV sizing, sensible and latent recovery, key formulas, design mistakes, and real engineering application in DOAS and commercial ventilation systems.
nexoradesign.net
Mar 158 min read


How to Size Chilled Water Pumps for HVAC Systems
Learn how to size chilled water pumps for HVAC systems using flow rate, pump head, pressure loss, and system control logic. This guide explains the engineering process, calculation example, comparison table, and common design mistakes that affect pump efficiency and cooling performance.
nexoradesign.net
Mar 147 min read


How to Design Variable Air Volume (VAV) Systems
Variable Air Volume (VAV) systems are the backbone of modern energy-efficient HVAC design. Learn how engineers design VAV systems, size VAV boxes, and optimize airflow for commercial buildings.
nexoradesign.net
Mar 145 min read


HVAC Fan Selection Guide (With Static Pressure Calculations)
Learn how to select HVAC fans correctly using airflow requirements and static pressure calculations. This guide explains fan types, pressure loss estimation, engineering selection steps, and practical design mistakes to avoid in real HVAC projects.
nexoradesign.net
Mar 147 min read


Psychrometric Calculations in HVAC Design (With Real Project Example & Load Calculation)
Learn how psychrometric calculations for humidification and dehumidification are used to size coils, humidifiers, and moisture control systems in HVAC projects. This guide explains humidity ratio, enthalpy, latent load, coil performance, and practical design calculations used by engineers in real buildings.
nexoradesign.net
Mar 148 min read


HVAC Moisture Removal Calculation Explained for Engineers
Humidity control is critical in HVAC design. Learn how engineers calculate moisture removal using psychrometric principles, airflow rates, and latent load formulas used in real HVAC systems.
nexoradesign.net
Mar 145 min read


Humidity Control in HVAC: Calculations & Design Guide
Realistic mechanical room and air handling unit scene with HVAC engineer reviewing psychrometric chart and humidity control calculations, visible cooling coil, ductwork, sensors, BMS screen, and condensate drainage details, professional industrial lighting, highly realistic, technical engineering blog style, no cartoon elements
nexoradesign.net
Mar 147 min read


Steam Humidifier Sizing Calculation for HVAC Systems
Learn how to perform a Steam Humidifier Sizing Calculation for HVAC systems using psychrometrics, airflow, and humidity ratio. This guide explains load formulas, AHU design checks, common mistakes, and a practical lb/hr steam sizing example engineers can apply in real projects.
nexoradesign.net
Mar 148 min read


Dehumidification Using Cooling Coils (Calculation Guide)
Learn how dehumidification using cooling coils works in real HVAC systems. This guide explains psychrometric principles, latent load, apparatus dew point, bypass factor, and step-by-step coil calculations with practical engineering examples.
nexoradesign.net
Mar 147 min read


Hospital Humidity Control Calculations in HVAC Design
Hospital humidity control calculations are essential for maintaining safe, stable indoor conditions in healthcare buildings. This article explains latent load estimation, psychrometric logic, supply air selection, coil performance, and common design mistakes engineers must address in hospital HVAC systems.
nexoradesign.net
Mar 147 min read


Industrial Dehumidification System Design Calculations
Learn how industrial dehumidification system design calculations are performed using psychrometric analysis, moisture load estimation, and equipment sizing logic. This guide explains humidity ratio, latent load, dew point control, and the engineering steps used to select refrigerant or desiccant systems for industrial applications.
nexoradesign.net
Mar 148 min read


Humidity Ratio and Moist Air Calculations Explained
Humidity ratio is a critical parameter in HVAC design used to calculate the moisture content of air. Learn how engineers perform moist air calculations, understand psychrometric relationships, and design efficient HVAC systems.
nexoradesign.net
Mar 145 min read


Dehumidification Load Calculation in Air Conditioning System
Dehumidification load calculation is essential for designing HVAC systems that control humidity, prevent condensation, and maintain indoor comfort. This guide explains latent load formulas, psychrometric principles, real design logic, and common mistakes engineers must avoid in air conditioning systems.
nexoradesign.net
Mar 137 min read


Building Energy Modeling Explained
Building Energy Modeling helps engineers predict how buildings consume energy before construction or during retrofits. This article explains how BEM works, its engineering principles, common mistakes, software tools, and how HVAC and MEP teams use it to improve efficiency, reduce operating cost, and support sustainable design.
nexoradesign.net
Mar 137 min read
bottom of page