Thermal Desalination Projects

Heat Driven Water Systems
Proven in the Field

Thermal desalination systems delivered across coastal communities, power plants, research facilities, and remote island environments.

Overview

Engineering Freshwater Through Thermal System

Vapour Desal Technologies has delivered thermal desalination systems across coastal communities, power plants, research facilities, and remote island environments where freshwater availability, operational reliability, and material durability are critical.

Our projects demonstrate how heat — whether from solar fields, power plant exhaust, nuclear facilities, or natural ocean thermal gradients — can be converted into dependable industrial-quality water supply across diverse environments.

Each installation is engineered to suit site-specific constraints including salinity levels, heat source characteristics, logistics, and long-term operational requirements.

8
Plants Delivered
1,000+
m³/day Total
4
Technologies Used
95%
Guaranteed Uptime
Project Details

All Thermal Desalination Projects

Click any project to expand full engineering details.

Lakshadweep Islands — Low Temperature Thermal Desalination (LTTD)

Quick Facts
Parameter Value
Location Lakshadweep Islands
Capacity 3 × 150 m³/day (450 m³/day total)
Technology Low Temperature Thermal Desalination
Energy Source Ocean thermal gradient
Execution Period 2018–2024

🎯 Project Requirement

Provide a sustainable freshwater solution for remote island communities where conventional water sources are limited.

🔧 Engineering Approach

  • Low Temperature Thermal Desalination (LTTD) uses the natural temperature difference between warm surface seawater and cold deep-sea water to generate freshwater under vacuum conditions.
  • deep-sea intake pipeline installation to access cold water
  • precision engineering of vacuum flash and condensation systems
  • marine-compatible materials and corrosion-resistant construction
  • Integration of mechanical, electrical, and marine works

    • ✅ Outcomes

  • Reliable freshwater supply delivered for island communities
  • Low-energy desalination using natural thermal gradients
  • Minimal environmental impact
  • Long-term operational sustainability achieved

    • 📐 Technical Parameters

    • Deep-sea intake pipeline length: approx. 850–1200 m
    • Cold water intake depth: approx. 350–400 m
    • Vacuum operation enables low-temperature evaporation

    NTPC Simhadri — Flue Gas Heat Recovery Desalination

    Quick Facts
    Parameter Value
    Location Simhadri, Andhra Pradesh
    Capacity 120 m³/day
    Technology LTF-MED
    Energy Source Flue gas heat recovery
    Execution Period 2017

    🎯 Project Requirement

    Recover low-grade waste heat from flue gas to produce freshwater and reduce water dependency.

    🔧 Engineering Approach

  • Waste heat from flue gas was recovered through a heat exchanger system and used to generate vapour for a Multi Effect Distillation unit.
  • Integration demonstrating conversion of low-quality waste heat into usable freshwater

    • ✅ Outcomes

  • Successful waste heat recovery application at power plant scale
  • Reduced freshwater dependency for plant operations
  • Demonstrated heat-to-water conversion potential

    • 📐 Technical Parameters

    • Gained Output Ratio: 5
    • Effects: 6
    • Shell material: Duplex Steel 2304
    • Tubes: Titanium SB 338 Gr 2, Aluminium AL5052

    OSCOM IREL, Odisha — MED-TVC Plant

    Quick Facts
    Parameter Value
    Location OSCOM, IREL Odisha
    Capacity 2 × 250 m³/day
    Technology MED-TVC
    Energy Source Boiler steam
    Execution Period 2020–2023

    🎯 Project Requirement

    Provide high-reliability desalination capacity to support mineral processing operations in a coastal environment requiring consistent water quality and supply.

    🔧 Engineering Approach

  • MED-TVC deployed using corrosion-resistant materials for marine and industrial environments
  • Built upon prior desalination experience within the atomic energy sector
  • Scalability from pilot installations to full industrial-scale delivery

    • ✅ Outcomes

  • Large-capacity freshwater production for industrial operations
  • Durability demonstrated in corrosive coastal conditions
  • Scalability validated from pilot to full industrial scale

    • 📐 Technical Parameters

    • GOR: 10
    • Effects: 6
    • Shell: SS 316L
    • Tubes: Titanium SB 338 Gr 2

    RAMDAS Solar Thermal Desalination Plant

    Quick Facts
    Parameter Value
    Location Narippaiyur, Ramanathapuram
    Capacity 144 m³/day
    Technology Solar MED-TVC
    Energy Source Solar LFR + Biomass boiler
    Execution Period 2011

    🎯 Project Requirement

    Provide municipal drinking water for a coastal community using renewable solar energy — ensuring continuous operation despite variable solar input.

    🔧 Engineering Approach

  • Steam generated from Linear Fresnel Reflector (LFR) solar collectors
  • MED-TVC system operated by solar-generated steam
  • Biomass boiler supplements steam supply for continuous around-the-clock operation
  • Hybrid system designed for operational continuity in variable solar conditions

    • ✅ Outcomes

  • Community-scale freshwater production delivered sustainably
  • Renewable energy successfully integrated for desalination
  • Hybrid solar-biomass operation enables continuous output

    • 📐 Technical Parameters

    • GOR: 10
    • Effects: 6
    • Shell: Duplex Steel 2304
    • Tubes: Titanium SB 338 Gr 2, Aluminium AL5052

    Discuss Your Thermal Desalination Requirement

    Whether you have waste heat, solar energy, or steam available — we can engineer a thermal desalination system that delivers reliable, high-quality freshwater for your application.

    Contact Us →