Skip to main content

Evaporation Systems

Multi-Effect Evaporators & TVR Systems

Ohm Engineers designs forced-circulation multi-effect evaporators (MEE) and TVR-integrated concentration trains for industrial effluent and ZLD pathways — positioning TVR where steam is available versus mechanical vapor recompression (MVR) when electricity is the preferred utility.

Thermal design from process data · TVR thermocompressor integration

Request engineering quotation
Multi Effect Evaporators

Key applications

Effluent concentration and ZLDSugar and molasses concentrationSalt manufacturingDairy product concentrationPharmaceutical liquid concentration

Working principle

Multi-effect evaporation and TVR

Vapour from one effect heats the next at a lower pressure, concentrating effluent in stages. Thermal vapor recompression recycles vapour enthalpy via a steam jet thermocompressor, reducing live steam demand versus standalone MEE.

Our multi-effect evaporator (MEE) systems achieve high energy efficiency by reusing steam vapour across multiple effects. Used extensively for concentrating liquid effluents, producing ZLD (zero liquid discharge), recovering valuable materials from dilute streams, and concentrating food & pharmaceutical products. We design 2-effect to 7-effect systems with falling film, forced circulation, or rising film evaporator bodies.

Operating envelope

Engineering specification matrix

Indicative ranges for RFQ discussion — not guaranteed catalogue limits.

Design parameterStandard rangeHeavy duty / customCompliance
Concentration ratioPer process simulationZLD train integrationClient mass balance
Effects2 to 5 effects typicalCustom circulation designFouling / viscosity on RFQ
TVRSteam jet thermocompressorHybrid MEE + TVRUtility survey

Metallurgy

Materials & chemical compatibility

Material of construction is taken from the purchaser datasheet and feed corrosion profile — not assumed from a catalogue default. Mill test certificates for pressure-boundary materials are supplied per the agreed ITP.

Material

01

SS 316L

Chemical and effluent concentration

Material

02

Duplex / Titanium

When specified for chloride service

Also quoted when specified

SS 316LSS 304Carbon SteelOther alloys when specified

Design standards

ASME (when specified)IS 2825 (when specified)

Documentation

  • MTC for pressure parts
  • As-built drawings
  • Hydro test records

Fabrication

Built for this product at Vadodara

Calandria, vapour bodies and condensers built at Vadodara; circulation pumps by buyer or as specified.

Manufacturing capability →About Us →
Multi Effect Evaporators fabrication at Ohm Engineers, Vadodara

FAQ

Technical answers — Multi Effect Evaporators

What is the steam economy of a multi-effect evaporator?
Steam economy depends on the number of effects, boiling-point elevation and the heat-and-material balance. We do not publish a single catalogue economy. Send feed rate, concentrations and available steam so the train can be engineered.
Can MEE systems be used for zero liquid discharge (ZLD)?
Yes. Multi-effect evaporators are a core component of ZLD systems, concentrating effluent for final crystallization or evaporation to dryness. We design complete ZLD trains.
TVR vs MVR for ZLD?
TVR uses motive steam to recompress vapour — attractive when HP steam is available. MVR uses electrical drives. We size TVR packages when the enquiry defines steam conditions; we do not assume a single ZLD architecture.

Engineering RFQ

Request an engineering quotation — Multi Effect Evaporators

Process parameters below help our engineers qualify the duty before reply. Or email info@ohmengineers.co.in · +91 83470 19128/22

I have a full datasheet — open complete engineering RFQ →

WHAT TO SEND

  • Configuration: Multi-effect train as specified on the enquiry
  • Duty: Evaporation rate, steam economy and effect count defined per process case
  • Bodies: Falling film, forced circulation or rising film when specified
  • Process datasheet or purchaser drawing if available
  • Design code and inspection requirements (ITP)

RESPONSE TIME

We reply by email. If data is incomplete, we list missing fields before commercial offer. Engineering review is not an instant catalogue price.

+91 83470 19128/22