[Case Study] DeAir Custom-Builds "Monster" DeAir.CRE-1200 Isothermal Dehumidifier for Ninh Hoa Sugar Plant

The Complex Engineering Challenge of the Sugar Industry

The sugar production industry is vital, but it operates under extremely strict technical requirements for temperature and humidity. One of the most critical stages, and also the biggest "bottleneck" for many plants, is the product cooling phase after drying and crystallization.

Finished sugar, when it first comes off the line, is still very hot and dry. The problem is, if this hot sugar is cooled in a humid air environment (typical of Vietnam's climate), the crystals will immediately reabsorb moisture (moisture regain). The consequence is caking (vón cục), reduced quality, and blockages in the packaging line.

To solve this complex problem, the Ninh Hoa Sugar Plant entrusted DeAir to research and manufacture a specialized, high-capacity technical solution: the DeAir.CRE-1200 Large-Capacity Isothermal Dehumidifier.

1. The Technical Challenge: The "Heat vs. Humidity" Conflict in Sugar Cooling

Problem 1: Moisture Regain & Caking (The Enemy of Quality)

Sugar (Sucrose) is an extremely hygroscopic material. Scientific research shows that when sugar crystals (especially hot ones) are exposed to humid air, their surface becomes moist, leading to adhesion and the formation of "solid bridges" as they dry again. This is the "caking" phenomenon, which reduces the quality of the final product and clogs the sieving and packaging systems.

Problem 2: The Energy Conflict (Why Standard Solutions Fail)

According to the sugar production process, after drying, the sugar must be cooled to stabilize its crystal structure. The challenge is that this cooling must happen in a SUPER-DRY environment. However, traditional solutions fail:

• Using Air Conditioners (AC): This only cools the air but cannot handle the massive, continuous moisture load from the hot product. It gets easily overloaded and is ineffective.
• Using Standard Condensing Dehumidifiers: The machine will dehumidify, but at the same time, it releases a large amount of heat (from its condenser). This added heat directly CONFLICTS with the primary goal of COOLING the sugar, making the space even hotter.

The Factory's Requirement: A device that can both REMOVE MOISTURE POWERFULLY and GENERATE NO HEAT (or even assist cooling) in the cooling zone.

2. The DeAir.CRE-1200 "Isothermal" Solution: When "Made in Vietnam" Capability Shines

What is Isothermal Technology?

This is a high-end condensing dehumidifier technology that completely solves the "heat vs. humidity conflict". The principle of the DeAir.CRE Isothermal Dehumidifier is that its condenser (the heat-releasing part) is designed to be completely separate and is installed outside the production area.

The Result: All the heat load from the compressor is exhausted externally. The air returned to the room, after having its moisture removed, is now COOL (at or below the inlet temperature). This is the only technology that solves the dual problem of needing to cool and dry simultaneously.

DeAir.CRE-1200: A "Custom-Made" Model for Massive Capacity

The DeAir.CRE-1200 is an extremely large-capacity model, custom-made by DeAir based on the specific order and technical problem of the Ninh Hoa Sugar Plant. This project included three DeAir.CRE-1200 units operating in parallel, all governed by a single central control cabinet designed by DeAir.

This highlights DeAir's R&D and manufacturing capabilities: We don't just assemble; we design and build specialized, large-capacity systems to meet the exact, complex technical demands of heavy industry.

3. On-Site and Production Media of the Project

After production was completed, the system was transported and handed over to the Ninh Hoa Sugar Plant, ready to go into operation to protect the quality of the finished sugar.

4. Frequently Asked Questions (FAQ)