calories/gram
cal/g
- K @ $ !
civil engineering, GITAM UNIVERSITY
A central processing unit (CPU), is under the fan and heat sink. The processor creates a lot of heat as it works, and would soon burn-out if not cooled.
The CPU (Central Processing Unit) is either a AMD or Intel processor. If you are using a desktop you will be able to locate it on the motherboard. Its under the heat sink/fan on your motherboard. Carefully remove your heat sink and you will find your cpu.
In air conditioning, refrigerant is pumped in through the suction line (the bigger of the two lines) of the condensing unit and cycled through the compressor and into the evaporator unit through the liquid line. Once charged properly, this cycle will continue perpetually until something malfunctions or a leak in the coils or line occurs. In heat pumps the process will reverse itself through its reversing valve while in the heat cycle.
A slave unit is normally a unit controlled my another unit on a network, or that does the same thing as another unit. For example if you have two harddrives in your computer on will be the master and the other one is called the slave unit
The Central Processing Unit (CPU)
The equation for heat of hydration is ΔH = q/m, where ΔH is the heat of hydration, q is the heat released or absorbed during the hydration process, and m is the mass of the substance undergoing hydration. It is a measure of the amount of heat energy released or absorbed when one mole of a substance is dissolved in water.
Some problems associated with heat of hydration include potential cracking and reduced strength of concrete due to rapid heat generation during the hydration process. Excessive heat can also lead to thermal gradients within the concrete, which can cause internal stresses and weaken the structure. Controlling the heat of hydration is important to ensure the durability and performance of the concrete.
lack of hydration
lack of hydration
heat of hydration should not be more than66 cal/g and 75cal/g for 7&28 days respectively
Hydration and cooling the patient.
The hydration of cement is an exothermic reaction. Three exothermic reactions are important: - hydration of gypsum and tricalciumaluminate - hydration of dicalciumsilicate - hydration of tricalciumsilicate
This is called hydration energy (heat).
Tricalcium silicate(C3S) ALITE (gives early strength to cement....heat of hydration is 120 cal/gm) Dicalcium silicate(C2S) BELITE (gives later strength ie after 7 days...less heat of hydration) Tricalcium aluminate(C3A) CELITE (gives INITIAL strength...high heat of hydration ...320 cal/g) Tetracalcium alumino ferrite(C4AF), FELITE (very high heat of hydration) - K @ $ ! civil engineering... GITAM UNIVERSITY
Heat is a energy form.So unit of heat is the same as energy
Advantages of curing:Gains strengthYields microcracksReleases high heat of hydration.
The SI unit for heat is the same as for energy, the joule (newton-meter). The SI unit for temperature (comparative heat potential) is the Kelvin (K).