KyungDong R&H
KyungDong R&H
Description
■ Fans
Fans shall be vane-axial induced type of cast aluminum ally blades.
Low cost and high efficient running
■ Water distribution nozzile
The sater shall be distributed over the entire coil surface by precision molded ABS spray nozzle.
■ Pan & casing
Pan and casing shall be constructed of hot-dip galvanized steel gor long life and durability.
■ Recirculation pump
Pump shall be a close-coupled centrifugal type.IP54 motor for dirp-proof.
■ Louver
Air entrainment efficient is a good and the spray branches is minimum like as honeycomb.
■ Eliminators
Highly Efficient Removal of Arsenic Acid
Our drift eliminator efficiently removes up to 0.002% arsenic acid contamination of the circulating water flow by rapidly transforming the direction of air flow three times using air pressure.
The user can extend the space of the drift eliminator supporter, making air flow resistance low.
Notice: Saturated air meeting cold air produce the moisture you may see on the drift eliminator. Such moisture is normal and does not affect the device’s performance.
■ Strainer
Strainer shall be constructed of stainless steel NO304 for prevent the erodion and be apt to checking,dismantle,assembling and cleaning.
■ COMPARISON OF EVAPORATIVE CONDENSER
COPPER TUBE EVA-CON | ALUMINUM PIPE EVA-CON | STEEL-PIPE EVA-CON | |
Material(Main element) | CU | AL | FE |
Specific weight (kg/m2) | C1220 | A1070 | STPG410 |
Thermal conductivity(kcl/mh℃) | 300 | 170 | 39 |
Tube Size | Tube Size | ￠22 | ￠25 |
Used Refrigent | FREON | NH₃ | FREON, NH₃ |
Commenting Part of In,Outlet | STEEL PIPE | INSULATION FLANGE
| STEEL PIPE |
Feature | ㆍGood in heat conductivity | ㆍGood In heat conductivity ㆍLower operation ㆍShort useful lengthper R/T ㆍEasy installation with lighter in weight | ㆍPerfect in corrosion & heat resistant ㆍHot dipped plating ㆍHeavy in weight ㆍLong useful lengthper 1R/T ㆍApply to and NH₃ Freon |
| Comparison Criteria | ■ Comparison Criteria | ■ Forced Draft Type |
| The axial fan | on the upper ventilator tube is positioned. | on the side of an exposed tube. |
| Even air flow | leaning to one side. | leads to the circulation of internal wind velocity. |
| Level of Noise | relatively low | relatively high |
| Repair, Maintenance | It is difficult for a Fan Motor to be checked, repaired and replaced. | It is easy for a Fan Motor to be checked, repaired and replaced. |
| Operating Cost | It is difficult for a Fan Motor to be checked, repaired and replaced. | Due to significant air resistance, a characteristic of the forced draft type, fan power expense increases by 40% or more. |
| Investment Cost | 1.0 | 1.6 ~ 1.9 |
| Usages | For a general outdoor type | basement installation-purpose is appropriate for its large aerodynamic resistance. |
| Air Recirculation Issues | The speed of air drain is faster than that of air suction with little occurrence of air recirculation. | Air suction is fast while air drain is slow, affecting air recirculation efficiency. |
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■ EVAPORATIVE CONDENSER Selection Method
| on the ton of evaporation (Condensing Capacity) | Method according to the calorific value based | |
| Selection Method | 1. Determine the number of evaporation tons, condensing temperature, suction temperature, wet-bulb temperature. load and refrigerant type, each capacity factor by condensing temperature and suction temperature. EVAPORATIVE CONDENSER Load capacity factor of suction temperature | 1. Determine according to evaporation load, compressor’s shaft power, condensing temperature and wet-bulb temperature. shaft power, condensing temperature and wet-bulb temperature. |
| Selection Criteria | ㆍRefrigerant: Freon (R-22) ㆍEvaporation ton load = 250Ton ㆍCondensing temperature = 40℃ ㆍSuction temperature = -10 ㆍWet-bulb temperature = 27℃ | ㆍRefrigerant: Ammonia (NH₃) ㆍEvaporator load + compressor shaft power 280Ton ㆍCondensing temperature = 35℃ ㆍWet-bulb temperature = 27℃ |
| Selection | Load of evaporative condenser determination with larger value | Load of evaporative condenser ㆍ250TON x 1.4 ㆍ392 TON (selected) ㆍSelection of 392 TON and specification determination with larger value |
