CIVIL ENGINEERING & INFRASTRUCTURE

Construction Site Process
Cooling System

China • Civil Engineering & Infrastructure Construction

≈250–280 kWIndustrial Cooling Capacity
5–10°CAdjustable Chilled Water
KASAir-Cooled Screw Chiller
24/7Continuous Construction Operation
SYSTEM STATUS — OPERATIONAL
✓ Infrastructure Construction ✓ Mobile Cooling Solution ✓ Air-Cooled Screw Chiller ✓ Outdoor Industrial Installation
Lohabour China Construction Site
≈250–280 kWCooling Capacity
5–10°CChilled Water
24/7Operation
KASChiller Model
PROJECT OVERVIEW

Engineering Brief

CustomerCCCC Second Harbor Engineering Co., Ltd.
IndustryCivil Engineering & Infrastructure Construction
ApplicationMobile Industrial Cooling for Construction Processes
ENGINEERING OBJECTIVE

Develop a reliable industrial cooling solution capable of operating continuously in outdoor construction environments — stable chilled water under high ambient summer conditions, rapid installation without permanent cooling infrastructure, reliable operation in harsh outdoor conditions, and easy relocation as project phases progressed. The packaged air-cooled chiller was installed directly on-site, avoiding cooling towers or permanent utility infrastructure while enabling rapid deployment.

PROJECT SCOPE
  • ✓ Cooling load assessment
  • ✓ Air-cooled screw chiller selection
  • ✓ Mobile outdoor installation
  • ✓ Process water distribution system
  • ✓ Pump & hydraulic integration
  • ✓ Electrical commissioning
  • ✓ PLC temperature control
  • ✓ Site performance testing
View Full System Flow ↓
THERMAL NETWORK ARCHITECTURE

Construction Cooling Network

The full site layout — heat rejection, generation, distribution, and return — with live flow direction.

Heat RejectionAmbient Air via Axial Condenser Fans
Thermal GenerationKAS Air-Cooled Screw Chiller
Hydraulic DistributionProcess Pump Station
Site UseTemperature-Controlled Processes
Site UseConstruction Equipment Cooling
Site UseConcrete-Related Applications
ConsolidationWarm Water Return
↺ Back to Chiller
THE ENGINEERING CHALLENGE

What Lohabour Was Called In To Fix

Major infrastructure projects frequently operate in exposed outdoor environments where summer temperatures can exceed 35°C — elevated water temperatures reduce cooling efficiency and make temperature-sensitive construction processes harder to control.

BEFORE — HIGH AMBIENT CONDITIONS

  • High outdoor ambient temperatures reducing cooling efficiency
  • Temporary construction environment, limited site utilities
  • Continuous daytime operation under changing site conditions
  • Rapid project deployment schedules

AFTER — ENGINEERED MOBILE COOLING SOLUTION

5–10°C
  • Stable chilled process water despite high ambient conditions
  • Self-contained air-cooled design, no cooling towers or civil works
  • Rapid on-site commissioning
  • Flexible relocation as construction phases progressed
ENGINEERED SYSTEM MODULES

Not Equipment. Engineering.

01 Thermal Generation

KAS Air-Cooled Screw Chiller

Input

Variable cooling demand from construction processes under high ambient temperatures

Purpose

Generate stable chilled water using a high-efficiency screw compressor built for continuous industrial duty

Result

≈250–280 kW cooling capacity with stable temperature control during extended operating periods

02 Hydraulic Distribution

Pump Station & Closed Water Circuit

Input

Continuous chilled water generated by the air-cooled chiller

Purpose

Distribute chilled water throughout the temporary construction cooling network with balanced hydraulic flow

Result

Reliable circulation with consistent delivery to multiple cooling points across the site

03 Outdoor Installation

Mobile Construction Package

Input

Construction site requiring minimal infrastructure

Purpose

Provide a compact industrial cooling solution installable rapidly without cooling towers or permanent utility systems

Result

Quick commissioning, simplified installation, flexibility for future relocation

04 Intelligence Layer

PLC Monitoring System

Input

Changing thermal loads throughout daily construction activities

Purpose

Automatically regulate chilled water temperature and compressor operation to match real-time demand

Result

Stable performance, reduced energy consumption, dependable continuous operation

HYDRAULIC DESIGN

Engineering Parameters

EquipmentKAS Air-Cooled Screw Chiller
Cooling Capacity≈250–280 kW
Compressor TypeSemi-Hermetic Screw Compressor
Cooling MethodAir-Cooled
Chilled Water Temperature5–10°C Adjustable
Water CircuitClosed Loop Process Water
InstallationOutdoor Mobile Package
Control SystemPLC Automatic Temperature Control
Operation24/7 Continuous Industrial Duty
THERMAL CYCLE SIMULATION

Hydraulic Cooling Cycle

Heat rejected to ambient air ↑ Axial Condenser Fans
🧊
KAS Air-Cooled Screw Chiller
Semi-Hermetic Screw CompressorAir-Cooled CondenserExpansion ValveEvaporator
⚙
Process Pump Station
🏗
Construction Cooling Network
↩
Warm Water Return
🧊
Back to Chiller
5–10°CChilled Water Supply
AdjustablePer Site Requirement
SYSTEM ARCHITECTURE

Layered Automation Stack

INTELLIGENCE

PLC Monitoring · Temperature Sensors · Alarm Protection

CONTROL

Compressor Regulation · Automatic Temperature Control

HYDRAULICS

Process Pump Station · Closed Water Circuit

THERMAL CORE

KAS Screw Chiller · Axial Condenser Fans

DESIGN PERFORMANCE

Thermal Performance Dashboard

Design parameters, not live telemetry — figures reflect engineered targets for this system.

≈265 kW
Cooling Capacity
5–10°C
Chilled Water Supply
35°C+
High Ambient Design
Mobile
Relocatable Package
24/7
Operating Schedule
ENGINEERING RATIONALE

Engineering Decisions

Why an Air-Cooled Chiller?

Challenge

Large infrastructure projects are often temporary and may lack access to permanent condenser water systems or cooling towers.

Decision

Deploy a self-contained air-cooled packaged chiller.

Benefit

Fast deployment, simplified installation, reduced maintenance requirements.

Why a Screw Compressor?

Challenge

Construction projects operate long hours with fluctuating cooling demands.

Decision

Select a screw compressor, built for continuous industrial duty with smoother capacity regulation.

Benefit

Higher reliability, longer service life, improved energy efficiency during prolonged operation.

Why a Mobile Cooling Solution?

Challenge

Infrastructure projects progress through multiple construction phases, making flexibility an important design consideration.

Decision

Specify a packaged chiller that can be relocated more easily than a permanent installation.

Benefit

Reduced installation costs, improved operational flexibility throughout the project lifecycle.

Why a Closed-Loop Water System?

Challenge

Open water systems increase consumption and expose equipment to contamination risk.

Decision

Implement a closed-loop chilled water circuit.

Benefit

Improved reliability, lower operating costs, consistent cooling performance.

PROJECT RESULTS

What This System Delivers

✓
Stable 5–10°C chilled process waterHeld continuously despite high ambient site conditions
✓
Reliable operation during continuous constructionConsistent performance across extended daily schedules
✓
Rapid deployment without cooling tower infrastructureSelf-contained air-cooled package, no civil works
✓
Reduced installation time and civil worksPackaged design commissioned directly on-site
✓
High-capacity industrial cooling for demanding environmentsStable output under harsh outdoor conditions
✓
Low-maintenance packaged systemSimplified upkeep across the project schedule
✓
Flexible relocation throughout project phasesPackage moves with the construction site as it progresses
✓
Continuous 24/7 cooling performanceNo downtime across construction operations
ENGINEERING DNA PROFILE

What Defines This System

Ratings below are a qualitative engineering assessment, not a measured benchmark — shown as a segmented meter rather than star icons to keep the framing technical.

THERMAL
CORE
Thermal Stability
Reliability
Automation
Scalability
Maintainability
Energy Optimization
PROJECT EVIDENCE

Documented On Site

KAS Chiller Unit
KAS Chiller Unit
Production site
Production site
Site Operations
Site Operations
Site Operations
Site Operations
ENGINEERING PRINCIPLES

Engineering Principles Applied

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SPECIFICATION PLATE

Project At A Glance

EquipmentKAS Air-Cooled Screw Chiller
IndustryCivil Engineering & Infrastructure Construction
LocationChina
Cooling Capacity≈250–280 kW
Water Temperature5–10°C Adjustable
Cooling MethodAir-Cooled Refrigeration
CompressorSemi-Hermetic Screw
Water CircuitClosed-Loop Process Water
InstallationMobile Outdoor Package
ControlPLC Automatic Temperature Control
Operation24/7 Continuous Duty
ENGINEERING SCOPE
NEXT ENGINEERING MISSION

Design Your Site
Cooling Architecture

Every construction site has a unique thermal profile. Lohabour engineers analyze cooling load, ambient conditions, site utilities and project phasing to develop mobile cooling architectures engineered for rapid deployment and industrial reliability.

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