Holtop HVAC Solutions for the Huaneng Xiapu Nuclear Power Base

High-reliability, corrosion-resistant, and energy-efficient climate control for coastal nuclear energy support facilities.

When a nuclear power base support project requires HVAC, reliability is not optional. The Huaneng Xiapu Nuclear Power Base Comprehensive Support Project in Ningde, Fujian Province, China, needed an integrated air conditioning solution capable of meeting strict safety standards, coastal salt-fog conditions, high humidity, and precise temperature control across multiple building types. Holtop delivered.

Project Overview

• Project: Huaneng Xiapu Nuclear Power Base – Comprehensive Support Project

• Location: Ningde, Fujian Province, China

• Phase I Gross Floor Area: Approximately 52,000 m²

• Key Areas: Intelligent control center, integrated offices, equipment rooms, and multifunctional zones

• Holtop Products Supplied: Screw-type air-cooled chiller/heat pump units, heat recovery air handling units, and intelligent control system

• Critical Requirements: High reliability, corrosion resistance, precise temperature and humidity control, energy efficiency, and low O&M

The Challenge

The Huaneng Xiapu Nuclear Power Base is critical infrastructure. Its comprehensive support project includes an intelligent control center, office areas, equipment rooms, and other functional zones—each with different HVAC demands.

The project faced several tough challenges:

• Nuclear-grade reliability: The HVAC system had to operate safely and stably under strict nuclear industry requirements.

• Coastal environment: Located in Fujian, the site faces high salt fog, high humidity, and corrosive conditions.

• Precise climate control: The intelligent control center required highly stable temperature and humidity to protect sensitive control systems.

• Energy efficiency: The system needed to perform efficiently during transitional seasons and nighttime low-load periods.

• Low maintenance pressure: Long-term, year-round operation required intelligent monitoring, early warning, and fault diagnosis.

Holtop Products Supplied and Their Key Advantages

1. Screw-Type Air-Cooled Chiller/Heat Pump Units

Key advantages:

• High reliability for mission-critical and nuclear energy support facilities.

• Integrated Part Load Value (IPLV) approximately 15%–25% higher than conventional modular chillers.

• Excellent part-load efficiency, especially during transitional seasons and nighttime low-load operation.

• Efficient load matching and on-demand energy supply, reducing energy consumption and operating costs from the source.

• Suitable for continuous, stable operation in large facilities with diverse cooling and heating needs.

Recommended applications:

• Nuclear power bases and energy infrastructure

• Large commercial complexes and industrial parks

• Data centers and mission-critical facilities

• Manufacturing plants and equipment buildings

• Large-scale buildings requiring reliable central cooling and heating

2. Heat Recovery Air Handling Units (AHUs)

Key advantages:

• High-precision temperature and humidity control with accuracy up to ±0.5°C.

• Real-time response and dynamic adjustment based on indoor load changes.

• Stable maintenance of set parameters, eliminating local hot/cold spots and temperature/humidity fluctuations.

• Heat recovery design helps reduce fresh air energy load and improve overall system efficiency.

• Salt-spray tested and suitable for high-salt-fog, high-humidity coastal environments.

• Key internal components use corrosion-resistant materials and sealed designs.

• Unit cabinets offer strong sealing and low air leakage, supporting long-term stable operation.

Recommended applications:

• Intelligent control centers and command rooms

• Office buildings and integrated support complexes

• Equipment rooms and technical areas

• Data centers, telecom rooms, and precision environment rooms

• Laboratories, healthcare facilities, and clean environment spaces

• Coastal buildings and industrial facilities exposed to salt fog and humidity

3. Intelligent Control System

Key advantages:

• Real-time monitoring of operating status.

• Automatic load matching and synchronized adjustment of operating unit quantity.

• Fine-grained, on-demand energy supply.

• Equipment early warning and fault diagnosis for stable year-round operation.

• Reduced maintenance pressure and lower O&M costs by approximately 30%–50%.

• Ideal for multi-zone, multi-function facilities requiring centralized and intelligent HVAC management.

Recommended applications:

• Nuclear power bases and energy facilities

• Multi-zone commercial and industrial buildings

• Data centers and intelligent control hubs

• Hospitals, laboratories, and precision manufacturing facilities

• Large public buildings and infrastructure projects

Where Holtop HVAC Solutions Can Be Used

Holtop’s supplied products are suitable for a wide range of projects that demand reliability, corrosion resistance, precise climate control, and energy efficiency, including:

• Nuclear power bases and energy infrastructure

• Data centers and telecom facilities

• Intelligent control centers and command hubs

• Office complexes and commercial buildings

• Equipment rooms and utility buildings

• Coastal projects with high salt fog and high humidity

• Industrial plants and manufacturing facilities

• Laboratories, healthcare, and precision environment spaces

• Mission-critical facilities requiring year-round stable operation

The Results

• 15%–25% higher IPLV than conventional modular chillers, with clear energy savings during transitional seasons and low-load nighttime operation.

• ±0.5°C temperature control accuracy for the intelligent control center and other critical areas.

• Salt-spray-tested, corrosion-resistant design for long service life in coastal high-humidity conditions.

• Approximately 30%–50% lower O&M costs through intelligent system operation and maintenance.

• Stable, efficient, and reliable environment across all functional zones of the nuclear power base support project.