Water tank immersion heater

We intend to install an immersion heater in a De-min water tank. Tank capacity is 379 liters. This tank is used as the de-min water tank for offline compressor washing of our gas turbine. Heat capacity of the De-min water is 4.1764 kJ/kg K.

De-min water temperature is around 25 degrees C. We requ

warming boots

Hi

I heard Japanese soldiers during WWII weared at winter (in cold areas) the boots whose soles had been filled with a substance which emitted heat (warming feet) during walking. What might have been that substance ?

American-Made Products: A Letter to Lowe's

Dear Lowe's,

Every single tool or appliance made in America that I have purchased from Lowe's in the last 18 months has been defective. Every single one. To wit:

Item: Black & Decker Variable-Speed Electric Drill.

Failure: Drill does not operate when the chuck-rotation switch is in the

Modeling a Diesel Engine with Simulink

Hello,

I am currently currently on an engine and I would like to make a simple of it for example using simulink. For example for a specified amount of diesel injected 9and a certain load), I would like to know how much time it will take for the rpm to stabilize,...

I know I have to es

Pigtails and Electrical Drawings

Pls can anyone tell me what a pigtail means in an electrical earthing layout diagram.

what is a 25x3mm copper tape,air terminal with base,oblong test point,earth inspection chamber (i saw it in an earthing layout for workshop/store building roof plan for a gas power station).

Electrical Design Specifications

Greetings all,

iam working in an out door lighting design for our plant and i calculated the total watt needed (sum of all lights) = 53 kw, 220 volt

our power supply is 480V

so, I chosed a 75 KVA transformer dry type 480/220-127 V 3 phase 60 Hz

cable size from fee

Chemical Cleanser

Hi Guys,

The mixture is:

1:1:5 ---- H2O2(30%) : NH4OH(29%) : H2O(18M Ohm DI water)

I am interested in the pH of the products, potential Off gases and any hazards that may be associated with the mixture. If anyone can help that would fantastic, and if you require more info

Keyless Entry for 2007 Chevy Silverado

The Keyless Entry fob for my 2007 Silverado is not working completely. It will Lock, but not Unlock. I've never heard of this before. I've lost the second fob, so I can't troubleshoot as I would normally be able to do as to whether the problem was in the fob or the truck. I am approaching this a

Haiti Earthquakes and Plate Tectonics

Haiti and other parts of the Caribbean are the only areas along the eastern coast of the North and South American continents that are experiencing active plate tectonics. The island of Hispaniola, of which Haiti occupies the western third, is itself is an exhumed portion of the Caribbean Plat

Harmonics in a 3-Phase Load with Open Neutral

I would like to discuss the underlined sentences in the text below. [1] As triple harmonic currents have zero phase sequence they cannot exist in a three-phase balanced form unless there is a neutral return path. [2] The rectifiers normally included in UPS equipments are of the three-phase bri

Robotics Prof Fears Rise of Military Robots

From Slashdot:

An anonymous reader writes "Interesting video interview on silicon.com with Sheffield University's Noel Sharkey, professor of AI & robotics. The white-haired prof talks state-of-the-robot-nation — discussing the most impressive robots currently clanking about o

Pipe Thickness

Hi ,to calculate the minimum pipe wall thickness we need to three data entry

please explain about this data and the table we should use if possible use an example for me thk's

1-QUALITY FACTOR

2-CORROSION ALLOWANCE(for exp. for carbon steel pipe what's wrong some use2mm an