Tuesday, June 28, 2016
Saturday, June 25, 2016
Effects of location on Tower
- Will the tower protrude on the skyline and the planning permission required? Most of the authorities/civic bodies include the tower height in to the total height of the building.
- Is the tower roof mounted? If so, is the roof loading satisfactory?
- Is the electricity supply available? What is the voltage, phase and frequency?
- Is the make up water available in sufficient quantity and pressure?
- Are the foundation required, and who provides?
- Does the site allow access for maintenance, painting, treatment and cleaning etc.?
- Does the site provide for drain and over flow?
- Is the tower in best orientation?
Effects of Tower on location
- Particularly on air conditioning, is the noice level suitable for night as well as daytime operation, where applicable?
- Is the building structure of such a type as to transmit vibration or are anti-vibration pads or mountings required?
- Can the moist air discharge escape satisfactorily or does it discharge past and into adjacent windows?
- With the possible combination of high water temperature and winter operation, will the condensing vapour plume prove a nuisance e.g. top floor site in the city?
- Architectural treatment can be applied to the tower and surroundings if required.
- Prior to erection has been visited?
- Was the access and route of access checked?
- Are scaffolding, crane or hoisting required? Who will provide this?
- Ensure that all safety guards are fitted prior to test.
- How long will off-loading take?
- During erection, remember that full statutory regulation must be observed, local fire regulations, building, safety, health etc.
Monday, October 18, 2010
Delta DFC-60 Series industrial cooling towers utilize the induced draught counter flow principle of operation. Heated water enters via the hot water inlet passing through perforated branch pipes spreading the water evenly by the splash caps. Water is distributed over the heat exchange fill. Water flows as a thin film downward through the fill coming into direct contact with ambient air traveling upwards in a counter flow direction.
Water cooling is affected by heat transfer to the air in the form of evaporation and convention. To prevent carry â€“ over of water droplets by the fan, drift eliminators are mounted above the water distribution. The drift eliminator controls drift loss to less than 0.02 % of water in circulation.