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Calculating Cooling Water Velocity
2009-09-23 06:23:00 Is there a formula to calculate the correct cooling water velocity over a Submersible motor with a Shroud. That will take into account the ambient temperature of the water?
Calculating Cooling Water Velocity
2009-09-22 09:37:00 Is there a formula to calculate the correct cooling water velocity over a Submersible motor with a Shroud. That will take into account the ambient temperature of the water?
How to design cooling coil in AHU
2009-09-10 10:29:00 I have the following data Air quantity 3157cfm Desired room temp 22 degree Outside temp 38 degree Desired RH 55% Chilled water type chiller supply water temp 7Degree Return water temp 12 degrees Chiller capacity 40Kw
How to Design Cooling Coil in Air Handling Unit (AHU)
2009-09-10 10:29:00 I have the following data Air quantity 3157cfm Desired room temp 22 degree Outside temp 38 degree Desired RH 55% Chilled water type chiller supply water temp 7Degree Return water temp 12 degrees Chiller capacity 40Kw
cooling tower
2009-09-07 20:54:00 if a hyperbolic cooling tower turns into cylinderical cooling tower of lesser height than former then how can we increase the efficiency of this cylinderical cooling tower
Soft Fan Provides Cooling Breeze, Protects Curious Fingers
2009-08-27 12:00:00 Want to cool down a room but worry about spinning metal blades slicing a curious child's fingers? The "Soft Fan" eases minds with its soft polyurethane blades while pleasing eyes with a rounded, stylized design.
Cooling Tower
2009-08-23 18:41:00 Hai , In Our Hot rolling Mills Cooling Tower motors are continusely Fail due to water enter in motor terminals please give any solutions
Solar Powered Cooling Systems
2009-08-05 12:34:00 Hi all I need data for examining an idea for an innovative cooling sistem based on solar energy.So I need to know the efficiency, the temperature at the focus, and of course the price for domestic as well for industrial buildings. data
Role of a Cooling Fan on a Fan Motor
2009-08-04 21:25:00 We have plastic blades of a cooling fan on a 400V 22kW ABB fan motor broken. I'm in doubt as to whether we need a replacement. On the one hand, I understand the indespensable cooling role of this part for a motor working in stagnant air conditions - but what is its purpose in an AHU where air is fl
Critical cooling rate & quenching of steel
2009-07-26 00:31:00 Dear members, I want to know the folowing: 1. If 0.2%C steel and 0.8%C steel aare both heated to austenite regions and are then quenched in water at room temperature, what changes would occur to steel in every aspect? 2. What will be the critical cooling rate of steel having austenite tran
Critical Cooling Rate and Quenching Steel
2009-07-26 00:31:00 Dear members, I want to know the folowing: 1. If 0.2%C steel and 0.8%C steel aare both heated to austenite regions and are then quenched in water at room temperature, what changes would occur to steel in every aspect? 2. What will be the critical cooling rate of steel having austen
How to Calculate the Efficiency of Cooling Tower
2009-07-14 14:52:00 I have all the necessary data with me to find the efficiency of cooling tower. I used the following formula to find out the efficiency of cooling tower but i think it may lead to wrong answer...kindly help me out Efficiency = (Inlet Temp - Outlet Temp) / (Inlet Temp - Wet bulb temp of air)
Calculating Cooling Tower Efficiency
2009-07-14 14:52:00 I have all the necessary data with me to find the efficiency of cooling tower. I used the following formula to find out the efficiency of cooling tower but i think it may lead to wrong answer...kindly help me out Efficiency = (Inlet Temp - Outlet Temp) / (Inlet Temp - Wet bulb temp of a
Concrete Volute Cooling Water Pumps
2009-07-14 10:33:00 We are in the process of procuring large concrete volute pumps for providing cooling water supply to condenser and Natural draft cooling tower. As the pumps can not be tested at works, what kind of tests are to be specified to ensure pumps follow the performance curves furnished by the vendor and op
air cooling effect in rtd
2009-07-07 17:11:00 for fabricated thermowell is it necessary to have tapered tip so as to avoid air cooling effect in temperature measurement?
Cooling water coming out of the reservoir
2009-07-04 22:43:00 The cooling water of my Mercedes Truck started coming out of the reservoir, i had doubt on the engine head gasket since i noticed that there is pressure on the radiator , i have replaced all the head gaskets it continued running for sometimes but the same problem arises again , i have also noticed t
Problem Process Cooling Water System
2009-06-15 23:45:00 I am looking for information on how to calculate head loss on a process cooling water system. This system has 1 supply pump with 4 HX feed off the supply main. All HX return to a common return which passes thru a heat recovery HX and then flows to 2 cooling towers and drains to a common sump ta
soap cooling
2009-06-10 21:59:00 I have a soap stamping machine. Its required normally -12.5 to -15 degree celsius. Capacity of stamper is 1 ton per hour. Please tell me how i can select a chiller? And please give the equation to find out the same? how to find out the tonnage of chiller for this 1 ton load?
Chemical Additives for Cooling System Flush
2009-06-10 20:47:00 what's the chemical addittives to use for flushing engine block cylinderthe & radiators of cooling system ? eng.said manna
utilising exhaust energy for cooling of machinery spaces
2009-06-06 05:39:00 Dear all, I am a shippie as an engineer officer on one of the ships. I have been thinking on similar lines and want to use the exhaust from the engines ( heavy duty) and Diesel engines for cooling of machinery spaces for the betterment of the men who slog there inside at the least. Your view
Noisy Lap Top Cooling Fans
2009-06-04 17:04:00 Anyone out there that has experience in being able to lubricate a cooling fan bearing to stop grinding noise, please respond. I know I'll eventually need to replace both motors on this Inspiron 8200, but need a temorary fix for this noise until I reach a facility where I can do that. Please hel
Calculate of filler for counterflow packer cooling tower
2009-05-30 03:02:00 I am preparing a investigation about counterflow cooling tower. I need to know how calculate the filler thermal equations and measurements. i need help about this subject
Calculating Cooling Capacity
2009-05-28 10:20:00 How to calculate sensible cooling capacity of the cooling unit? Is there any formula to calculate it?
HEAT LOAD OF A COOLING TOWER
2009-05-25 14:49:00 HOW TO CALCULATE HEAT LOAD OF A COOLING TOWER OF TIMBER TYPE WE HAVE FLOW RATE= 1000 CMH, INLET TEMP = 42c OUTLET TEMP = 32C WBT = 28C
Domestic Underfloor Water Heating and Cooling
2009-05-06 15:17:00 Dear All, I am an engineer by profession working in the avaition sector and I hold a B. Eng. (Hons.) Mechatronics. I am investigating in using rainwater harvesting as a means for underfloor heating and cooling on a domestic scale. My idea is, during summer, the rainwater can be use
UNDERFLOOR WATER HEATING AND COOLING
2009-05-05 12:19:00 Dear All, I am an engineer by profession working in the avaition sector and I hold a B. Eng. (Hons.) Mechatronics. I am investigating in using rainwater harvesting as a means for underfloor heating and cooling on a domestic scale. My idea is, during summer, the rainwater can be used for co
Rainwater Harvesting for Residential Heating and Cooling
2009-05-05 12:19:00 Dear All, I am an engineer by profession working in the avaition sector and I hold a B. Eng. (Hons.) Mechatronics. I am investigating in using rainwater harvesting as a means for underfloor heating and cooling on a domestic scale. My idea is, during summer, the rainwater can be use
Shape of cooling towers at nuclear reactors
2009-04-12 07:03:00 Why do cooling towers at nuclear reactors have that well-known hourglass shape?
Duct structure for cooling air
2009-04-10 03:37:00 Dear All Gurus, I have one unit of SP 12000Pa ,volume : 600m³/min centrifugal blower which driven by 185Kw 415V 3Ph 50Hz motor,starting current is 1000A by Auto transformer and running is 230A. Now i want to supply this blower cooling air to a machine cooling which is 80m distance from blo
What's the Best Duct Structure for Air Cooling?
2009-04-10 03:37:00 Dear All Gurus, I have one unit of SP 12000Pa ,volume : 600m³/min centrifugal blower which driven by 185Kw 415V 3Ph 50Hz motor,starting current is 1000A by Auto transformer and running is 230A. Now i want to supply this blower cooling air to a machine cooling which is 80m distance
Cooling Systems for Blister Packaging Equipment
2009-04-07 01:25:00 How to size and design a cooling system for blister packaging machine for tablets and capsules based on the following. 1. Flow rate of tap water as coolant - 40 liters/hr. 2. Inlet temperature to the blister machine- 20 deg. C. 3. Out temperature from the blister machine - 50 de
cooling of battery banks
2009-04-03 02:07:00 I am delving into an area that manufactures do not offer much help with. The question is how to cool large battery banks under heavy charge rates. Although battery manufacturers give the critical temp limits for safe operatin of their product, they do not offer much help with how to keep the te
Brackish Water for Small-Scale Evaporative Cooling
2009-04-02 17:53:00 Im trying to design a small evaporative cooler for a home setting using expelled air of a vacuum pump to run across a sample of brackish water-soaked wood wool in order to cool a small area such as a room. I have three questions. 1) Does evaporative cooling work by running air across a piece of wood
Cooling Tower Design - Odd Indeed
2009-03-25 20:24:00 I have run into a cooling tower of a type that I have never seen before and I was wondering if anyone had ever seen anything else like it. The heat exchangers that the cooling tower serves are actually located inside the cooling tower itself. Cooling water sprays on tube bundles to transfer heat f
Data Centre rack cooling testing
2009-03-25 08:37:00 Hi there I am completing a project which includes a 160kW UPS supplying a computer suite. The rack cabinets have integrated cooling, in the form of Liquid Cooling Packages (LCPs) for each. These packages can extract up to 30kW of heat from each cabinet. When I asked about testing these, this wa
Data Center Rack Cooling Tests
2009-03-25 08:37:00 Hi there I am completing a project which includes a 160kW UPS supplying a computer suite. The rack cabinets have integrated cooling, in the form of Liquid Cooling Packages (LCPs) for each. These packages can extract up to 30kW of heat from each cabinet. When I asked about testing these,
Cooling Cars with Solar Energy
2009-03-17 08:31:00 Any one have an idea about water cooling system in parked automobiles by using solar energy.(With engine off condition) and it should be a seperate accesories need to fix in baggage/cabin area.
Conserving Water by Condensing Steam from Cooling Towers
2009-03-12 19:53:00 Dear Experts, March 22 is Water conservation day. More than 1 billion people are not having access to safe drinking water, which is less than 0.006% compared to the total water available on Earth. We, engineers , have greater responsibility to improve the quantity and quality
Temporary Bypass for Cooling System
2009-03-04 12:07:00 we are asked to design a temporary bypass system for a cooling water system with a particular pressure drop and flow to suit a permanent piping for an utility which is not yet ready.the line size is 3000mm(10ft) id and the medium is water having a velocity of 3.2 metre/sec .the customer desires an o
Hot Air Cooling in Sea Dipped Pipe
2009-03-03 15:43:00 Dear All, In an offshore Platform in the Middle East, we need to cool substantial amount of Ambient air (T=48 degC) in order to use it as cooling media for a Rotary Drive. If I want to cool, Hot air in pipe by submerging in Sea, what sort of design constraints we may have to face.
Cooling Tower Pump and Submergence Level
2009-02-25 06:48:00 Hello, I have a cooling Tower basin of 1.7m Ht and a axial split cooling water pump.Note that the pump is located below the tank and the outlet from the tank is located sideways. The reqd flowrate is 15300 US GPM. Consider Center line of the pump as datum/ref line.
Ground source for heat and cooling
2009-02-22 14:27:00 I have a bore-hole well,24 inch inside diameter,51 feet deep with 37 feet of standing water,and approximately 3 Gallons/minute flow though.The concrete tile is 2 inches thick, surrounded by concrete grout 6 inches thick, for the top 18 feet.The remainder (37 feet) is in a clay-gravel type soil struc
Cooling/Heating thermostat
2009-02-21 21:15:00 I don't know if such a thing exists. I would like to maintain a constant temperature automatically from my home heating/cooling system without having to manually switch from "winter/cooling" season. In other words a thermostat that automatically decides whether it's above or below the set temperat
UVC Lamps and Cooling Coil Corrosion
2009-02-12 20:16:00 Has anyone seen or experienced rapid metal corrosion and materials degradation in air handling units with UVC lamps installed downstream of the cooling coils? I am working in a building that has been open since June of 2008 and there is severe corrosion taking place within the air handler a
Deareator Questions - Metal Temps and Cooling Times
2009-02-12 06:29:00 How much time it will take for coolling down the metal temperature of deareator from 160 deg celcius to normal working temperature? Approximately time for complete cooling,Incase of complete isolation of deareator
Cooling Tower Check List
2009-02-12 00:23:00 Installing a cooling tower? Find a helpful check list at www.expertctr.com/ch_17.php
Cooling Tower water consumption
2009-02-10 22:23:00 I would like to know the formula to calculate the water consumption or water being evaporated in cooling tower with respect to the entering and leaving water temperature, ambient air wet bulb temperature and flow rate. SI unit if possible. Thanks
Galvanized Pipe and Engine Cooling Systems
2009-02-06 16:42:00 Hello all. We use galvanized piping on the seawater side of marine cooling systems to prevent corrosion in salt water environments. I have been told that galvanized piping in closed circuit cooling systems - such as jacket water and aftercooler - should be avoided. But I cannot fin
Windshield Wiper Fluid in the Cooling System
2009-02-06 13:03:00 I'm sure this will make some people laugh and others think WTF was he thinking . I'll start out by recommending you NOT add car fluids with little or no light so you can't see exactly what you're doing . I think by now you know where this is heading . Cutting to the chase , last night I added about |
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