HAMON - Integrated solutions for a clean environment

The natural draft cooling tower is the right choice for large power plants.It offers the following advantages :power saving (no power consumption to induce air flow- no fan).environmentally friendly.no mechanical noise (no fan).safety of operation.no recirculation as the plume is rejected at high level.limited plot area.limited maintenance.high longevity (generally more than plant life expectancy).Payback period between 8 and 16 years depending on several factors.Hamon offers both basin or water collecting devices. This last solution, developed by Hamon, is recommended for large cooling towers.It offers the following advantages :less pressure drop in the air inlet.reduction of pumping power.decrease of acoustic pressure in air inlet

The fan assisted natural draft cooling tower (FAND) combines the advantages of the natural draft cooling tower and the mechanical draft cooling tower.It becomes the best available technology when :Locations with limited plot plan. Overall height is limited. Important heat load . ADVANTAGES VS. CELLS: Compact arrangement. Power saving due to natural draft. No recirculation. Always a good alignment considering wind directions. Cooling by natural draft in case of electricity shortage.ADVANTAGES VS. NATURAL DRAFT CT: Reduced height. Better cooling characteristics during the summer season. Higher flexibility

Plume-abated fan assisted natural draft or circular hybrid cooling tower is the best technical solution for large heat loads and stringent plume abatement requirements.Seawater application. If overall height is limited. To keep countryside free from visible plume formations and shadow .For locations close to residential areas .To facilitate permission processes. ADVANTAGES VS CELL TYPE HYBRID COOLING TOWER: Compact arrangement/space saving. No recirculation and interference effects. No wash down (grounding) effects of plume. Use of natural draft. No corrosion due to humidity and salinity in the neighborhood. Visually an interesting architectural structure.

The induced draft cooling tower generally offers the most effective and economical solution to most of cooling needs. Hamon has supplied numerous IDCT worldwide for all power and industry applications and all environmental conditions. The IDCT offers the following advantages:flexibility. cost effectiveness. air flow almost constant regardless ambient air temperature. adapted to any water flow .flexible operation by shutting some cells. adapted to high thermal performance .all types of structure – wood, FRP, concrete, steel. all types of heat exchange surfaces from splash grids to high performance film

The cooling tower with plume abatement (also called hybrid or wet/dry) is an evaporative cooling tower combined with a dry heat exchanger, used to abate the cooling tower plume. This is the best available solution where local constraints are such that the presence of plume is not accepted in normal conditions (along motorways, airports, close to residential areas).Hamon has an unrivaled reference list in this field.Plume abatement can be offered with mechanical draft cooling tower (cells) as well as with fan assisted natural draft (circular hybrid).ADVANTAGES: no plume visibility. outstanding performance of an evaporative cooling tower. cost attractiveness. all types of heat exchange media. for cell CT :same flexibility as an induced draft cooling tower. all types of structure (wood – frp – concrete – steel)

Forced draft cooling towers are specially designed to handle zinc sulphate solutions or highly corrosive liquids. They are equipped with distribution in highly resistant material.EFFECTIVE DESIGN COMBINING performance easy access for easy maintenance - sprayers are accessible without scaffolding and removable minimization of drift losses: 0,001% and lower. SUITABLE FOR HIGHLY CORROSIVE LIQUID WITH 200gl/ sulphuric acid, Presence of fluorine, Crystallization of gypsum

The RCDC ACC is designed with optimized key sections and equipment to guarantee a maximized efficiency. The steam flows from the turbine into a steam duct and several manifolds to reach the fin tube bundles. The RCDC ACC is designed in streets sitting on a steel leg system (under structure) raised to allow proper air intake into the forced draft modules of A-shape steelframes supporting the fin tube bundles. Once condensed the steam is collected by gravity into a condensate tank located underneath or in the close vicinity of the ACC. The efficiency of the steam condensation process is guaranteed using appropriate and reliable vacuum units. RCDC guarantee the complete system and undertake integral studies related to the ducts and manifolds, the steel leg system and the pipe work and other special studies as appropriate.

An indirect dry cooling system is characterized by the use of a condenser and air-cooled heat exchangers.The cooling system consists of the following main components :condenser (surface or spray type),cooling water circulating pumps and recovery turbines, if applicable,heat exchanger deltas including louvers,natural draft cooling tower,piping and valves,water storage tanks and transfer pumps,electrical equipment,instrumentation and control,accessories such as cleaning system, nitrogen blanketing system,The warm water from the condenser is delivered to the natural draft cooling tower by the cooling water circulating pumps and an underground piping network. After the cooling in the heat exchangers, the cold water returns to the condenser.

Hamon fabric filter systems are a major component of a long tradition of excellence. We combine more than 40 years of experience in fabric filtration including the latest approaches in low pressure high volume pulse jet filters as well as more conventional technologies such as medium pressure pulse jet filtration.Our engineers have designed and constructed fabric filters for a variety of applications, including cement, coal fired steam generators, stoker fired boilers, fluidized bed combustion boilers, municipal waste incinerators, cogeneration facilities, and industrial processes such as steel, rock products, aluminum, etc.A fabric filter system is very effective at the collection of fine particulates and metals. By using the appropriate fabric filter design (reactor type) and with additional sorbents injection upstream the fabric filter, air toxics such as SOx, mercury, dioxine,can be collected with substantially high efficiency.

Since Dr. Frederick Cottrell's invention over a century ago, electrostatic precipitators (ESPs) have been a primary technology for controlling particulate emissions. ESPs can be designed to meet stringent particulate emission standards with minimal pressure loss and high equipment reliability for extended plant operation.