Cooling Towers 285. Evaporation Rate = Approximately 3 gal/hr/ton Recirculating Rate = 4 to 5 gpm per ton of refrigeration Normally, 12 to 15 psig steam is used to provide the heat necessary to drive the absorption process. Hot water can be used in place of the steam.

Absorption chillers are often rated in fuel consumption per ton cooling. . Calculating Cooling Loads - Calculating chiller and cooling tower refrigeration - in tons; Cooling Tower Efficiency - Maximum cooling tower efficiency is limited by the wet-bulb temperature of the cooling air; . Cooling Load - Convert kW/ton to COP or EER. [online .

This comparison is based upon a 140 ton load, Chicago weather data, $.07/kwh electrical costs, $5.00/1000 gallon water and sewer costs and 6,000 hrs/year operation. Because the air cooled chiller uses floating head pressure control, the compressor energy costs are actually less than the water cooled chiller's compressor costs-a $4,757 .

Our product is the complete solution to process water-cooling by way of designing of cooling towers as per your needs in the following range. We design the FRP Induced Draft and Timber Cooling Towers considering the Indian climatic condition using ulkersons Method and CTI Acceptance Test Code for calculating air horse power require and dimensional sizing format to dissipate heat load (kcal .

shows average cost per evaporator ton for an HCFC-22 TES or supermarket refrigeration system (20°F suction temperature) versusapproach temperature, for 72°F design wet-bulb temperature.2 Graph 5. Graph 6 shows average cost per evaporator ton for an ammonia system, for 68°F and 78°F wet-bulb. As …

TOWER SYSTEM DESIGN FORMULAS. Cooling Tower = 3 Gallons per Minute per ton. 1 Tower Ton = 15,000 BTU/hr. Tower Ton = GPM x δT/30. CHILLER SYSTEM DESIGN. Chiller = 2.4 Gallons per Minute / ton. 1 ChillerTon = 12,000 BTU / hr. Chiller Ton = GPM x δT / 24.

recirculation rate must be evaporated to achieve this cooling. Where does this rule of thumb come from? It starts with one definition and one fact: x A British Thermal Unit (BTU) is defined as the amount of energy it takes to raise 1 pound of water 1 qF. x Approximately 1,000 BTU of heat is lost from water for every pound of water evaporated.

The amount of water that is bled off by the water treatment system is usually less than or equal to the amount of water that evaporates. Therefore, the maximum normal water makeup for a cooling tower system is .06 gpm / ton, or about 2% of the nominal tower flow rate. The following chart specifies the Maximun Water Make Up requirement per model.

cooling tower. The water exits the cooling tower and is sent back to the exchangers or to other units for further cooling. Typical closed loop cooling tower system is shown in Figure 7.1. Cooling Tower Types Cooling towers fall into two main categories: Natural draft and Mechanical draft.

C ooling, most frequently the energy use of chillers for the production of cooling via chilled water, but also the use ofdirect expansion cooling systems such as packaged air- …

Tower Tech Cooling Tower Designs Reduce Water Consumption and Treatment By Dr. S. Curtis, Ph.D. Ⓒ Tower Tech, Inc. Anecdotal reports from users of Tower Tech cooling towers across the U.S. have indicated the Tower Tech design provides substantial savings to the customer both in terms of lower chemical treatment requirements and substantial .

Cooling towers can be split into two distinct categories: open circuit (direct contact) and closed circuit (indirect) systems. In open circuit systems the recir- culating water returns to the tower after. (1) One ton of refrigeration is equal to 12,000 Btu/hour.

A typical large refinery processing 40,000 metric tonnes of crude oil per day (300,000 barrels (48,000 m 3) per day) circulates about 80,000 cubic metres of water per hour through its cooling tower system. The world's tallest cooling tower is the 202 metres (663 ft) tall cooling tower of Kalisindh Thermal Power Station in Jhalawar, Rajasthan .

Jul 15, 2017· This video guides you through how to calculate the cooling capacity of a chiller and the cooling load, it teaches in both metric and imperial to help you learn HVAC and building services engineering.

cooling tower water consumption per ton of refrigeration units cost,

A small portion of the water is evaporated which removes the heat from the remaining water. The warm moist air is drawn to the top of the cooling tower by the fan and discharged to the atmosphere. The cooled water drains to the basin at the bottom of the tower and is returned to the heat source.

A typical large refinery processing 40,000 metric tonnes of crude oil per day (300,000 barrels (48,000 m 3) per day) circulates about 80,000 cubic metres of water per hour through its cooling tower system. The world's tallest cooling tower is the 202 metres (663 ft) tall cooling tower of Kalisindh Thermal Power Station in Jhalawar, Rajasthan .

cooling tower water consumption per ton of refrigeration units cost,

Apr 01, 2017· The cooled water is collected in the sump (or basin) of the cooling tower, and it is typically pumped to the plant as the cooling-water-supply (CWS) stream. After extracting heat from the process units, this stream is returned to the cooling tower, as the cooling-water-return (CWR) stream.

Hydronic systems are better suited to handle buildings that require 50 to 100 tons of cooling capacity or more. Hydronic systems also have the capacity to pump water efficiently over long distances, such as a college campus or a high-rise office tower. VRF performance and energy consumption is directly tied to refrigerant piping length.

The water consumption - or the amount of make up water - of a cooling tower is about 0.2-0.3 liter per minute and ton of refrigeration. Compared with the use and waste of city water the water consumption can be reduced with about 90 - 95% .

Cooling Tower = 3 Gallons per Minute per ton; 1 Tower Ton = 15,000 BTU/hr . Water-Cooled Chiller = Each ton of chiller requires 1 ton of cooling tower; Mold Temperature Controllers = 1.2 ton per zone + .2 ton/horsepower (heating) Mold Temperature Controllers = use PPH chart + .2 ton/horsepower (cooling) Spot Welders = 1/4 ton per tip (for .

Steam consumption of steam vacuum refrigeration systems using evaporative condensers (Fig. 3) is a function of wet-bulb tempera-ture. Steam consumption for these systems may be determined by the use of Fig. 8. Cost correction factors for motive steam pressures are given in Fig. 9. Fig. 7 gives cost per ton of refrigeration for systems with

8 A-8: Air-Conditioning, Window Unit Note: On average, a window a/c requires one and a half hp per one ton of cooling. Enter tonnage of unit into Maintenance Feeder. Conversion Rates for A-8 85%.746kW x 1.5 = 1.119kW/ton 1.119kW / .85(Efficiency) = 1.316kW/ton

The chiller system is recirculating 40 gallons per minute of water that is chilled by 24 degrees F and using 24.8 kW/hr of electricity to produce the refrigeration. With this information you can calculate chiller efficiency in terms of the energy efficiency ratio, or EER, and …

cooling tower water consumption per ton of refrigeration units cost,

Water Consumption. Recirculating wet cooling systems with a mechanical-draft wet cooling tower significantly reduce (by a factor of 20 to 50 times) the amount of water drawn into a plant compared .

Based on components' configuration and air draft mechanisms, there are four types of mechanical draft cooling towers: induced draft counter flow, induced draft cross flow, forced draft counter flow, and forced draft cross flow. 1 One ton of refrigeration is equal to 12,000 Btu/hour.

Apr 01, 2017· The cooled water is collected in the sump (or basin) of the cooling tower, and it is typically pumped to the plant as the cooling-water-supply (CWS) stream. After extracting heat from the process units, this stream is returned to the cooling tower, as the cooling-water-return (CWR) stream.

cooling tower water consumption per ton of refrigeration units cost,

Jul 22, 2017· We add 273.15K to the celcius to convert it to units of Kelvin. The Specific heat capacity (Cp) is measured in units of kJ per kg per Kelvin. This gives us a final answer of Q = 2,500kW of cooling. Full calculations are shown below. Now lets look at how to calculate the cooling capacity of a chiller in imperial units. Imperial units:

The closed water loop provides condenser water to the interior zone cooling units, picking up the heat normally rejected to a cooling tower, and transferring it as the heat source for the perimeter zone heat pumps. . Water Loop Heat Pump (WLHP) Systems. . Loop circulation is typically between 2 to 3 gpm per ton of cooling capacity.

A ton of refrigeration is 12,000 BTU / hour [1, 2] which corresponds to the amount of energy necessary to melt on ton of ice in 24 hour. A cooling tower ton is defined as 15,000 BTU / hour [1, 2]. The additional energy required for the cooling tower ton [2] is the result of the energy required to run water pumps, compressors and other .

May 13, 2016· Treating cooling tower water properly is essential to the success and efficiency of your process. Organic growth, fouling, scaling, corrosion, and water scarcity are all challenges that can reduce plant productivity and require costly equipment replacements down the road, but "How Much Does a Cooling Tower Water Treatment System Cost? In order to keep your production flowing smoothly and .