Cooling Tower Fan Blade Angle Setting

Finally it was found that the cooling tower can operate under all the given approaches 5 c 6 c 7 c and 8 c at the blade angle of 67 by maintaining the cooling range of 5 c wet bulb temperature of 26 c and water flow rate of 3 9 m3 h.

Cooling tower fan blade angle setting.

Principles involved is that the work done at any radius along the blade is a function of blade width angle of attack and tangential velocity squared. Considered will be a 26 ft 28ft or 30 ft diameter fan. Blades set at a 20 degree angle meet too much resistance which may cause the motor to burn out. How to install a marley nc cooling tower episode 13.

Monroe hudson products corporation houston texas presented at the. Fan blade assemblies are sold as a set to include part 17 01 fan hub part 17 02 fan blades and part 17 04 u bolt if applicable. The allowable difference in inches in elevation of the blade tip in the fan stack between the lowest to the highest blade. Blade angle tolerance is to be 0 2 as measured by an approved digital protractor.

Leave a reply cancel reply. Generally the pitch angle of a cooling tower turbine is very from 6 degree to 15 degree depending on the operational speed and discharge. Let s look at a typical case of fan selection for a new tower design. Marley fan cylinders are crucial components for protecting fan blades minimizing sound and vibration and facilitating optimal performance across all cooling tower applications.

Duty requirements are 1 1 million actual cfm 0 477 in. Blade angles performance of a small cooling tower. First of all technically it is called the pitch angle of a turbine blade. By saum hadi posted on february 16 2020.

Improving cooling tower fan system efficiencies robert c. Prev cooling tower fan blade angle setting. Each set is factory tested and balanced to avoid any vibration issues. Blades that are set at a lower angle will slice the air but not create proper air circulation.

Next delta breez fan installation. The pitch angle of 50 tonne unit was around 12 degree as per my observation. The cooling tower blades move large volumes of air quietly and efficiently. Houston texas fans key to optimum cooling tower design nomograph gives the reciprocal of the density ratio.

A t 25 t 250. Set the blades for a ceiling fan to move the correct amount of air and achieve good circulation you should set the blades at a 14 degree angle.