What is lithium bromide absorption refrigeration system?
Lithium bromide-based absorption refrigeration is a viable system capable of providing large-tonnage central air conditioning. Water is flash boiled under vacuum at low temperatures. This boiling action cools evaporator or chilled water coils. As the flashed water vapor accumulates inside the chiller, vacuum is lost.
How do you get lithium bromide?
LiBr is prepared by treating an aqueous suspension of lithium carbonate with hydrobromic acid or by reacting lithium hydroxide with bromine. The salt forms several crystalline hydrates, unlike the other alkali metal bromides. The anhydrous salt forms cubic crystals similar to common salt (sodium chloride).
Which refrigerant is used in lithium bromide vapour absorption refrigeration system?
water
Concept: In the vapour absorption system, the water is used as the refrigerant while lithium bromide (Li Br) is used as the absorbent.
What is lithium bromide used for?
Uses of Lithium Bromide – LiBr Used as a coolant in industrial air cooling systems working by absorptions. Used in pharmaceuticals as a drying agent and for other industrial purposes. Used as a sedative and for the treatment of epilepsy.
Why is lithium bromide used?
Lithium bromide is an extremely hygroscopic chemical commonly used in absorption chillers, where water is the refrigerant. Because of its high affinity to water, LiBr can easily absorb excess vapor, making the system an environmentally friendly non-CFC alternative.
How much is a ton of refrigeration?
12000 BTU
A ton of refrigeration (TR) is a unit of heat extraction capacity of the refrigeration or cooling equipment. Generally, TR is defined as the amount of heat transferred to freeze or melt 1 short ton of ice at 0 deg. C in 24 hours. 1 TR is approximately equal to 12000 BTU or 3024 Kcal/hr of energy/heat load.
How much does lithium bromide cost?
Lithium Bromide
| Size | Unit Price | 2-3 Business Days |
|---|---|---|
| 25G | $27.00 | Contact Us |
| 100G | $61.00 | ≥20 |
| 500G | $138.00 | Contact Us |
Is lithium bromide highly explosive?
Lithium bromide solution poses a slight health hazard (in terms of irritation of contaminated skin and eyes) during typical emergency response situations. This product is not flammable. This product is not reactive under most circumstances.
Does LiBr dissolved in water?
Lithium bromide is a chemical compound with the formula LiBr. It is soluble in water, alcohol and ether.
What is LiBr used for?
What is the pH of LiBr?
| LITHIUM BROMIDE | |
|---|---|
| PRODUCT IDENTIFICATION | |
| pH | 8.5 – 9.5 |
| TRANSPORTATION | |
| PACKING |
How do you calculate KW and TR?
In English terminology, 1 TR is 3024 KCal. Learn How the value of 3024 KCal or 3.517 KW derived…..!! One short ton = 2000 lb, Heat extracted = 2000 x 144/24 hr = 288000 Btu/24 hr = 12000 Btu/hr = 200 Btu/min, 1 ton refrigeration = 200 Btu/min = 3.517 kJ/s = 3.517 kW = 4.713 HP .
What is the relative formula mass of lithium bromide?
86.845 g/mol
Other names – Lithium monobromide
| LiBr | Lithium Bromide |
|---|---|
| Molecular Weight/ Molar Mass | 86.845 g/mol |
| Boiling Point | 1,265 °C |
| Melting Point | 552 °C |
| Chemical Formula | LiBr |
Is LiBr flammable?
Does LiBr dissolve in water?
Lithium bromide is soluble in ether, amyl alcohol and freely soluble in alcohol and glycol. Lithium carbonate is sparingly soluble in water, very slightly soluble in alcohol, and dissolves in dilute acid. Lithium chloride is soluble in alcohol, acetone, and amyl alcohol.
What is a vapour absorption machine?
Voltas’ Vapour Absorption Machines (VAMs) of Lithium bromide – water type are indigenously manufactured with state of the art Paraflow Technology with focus on reliability & efficiency. It can be operated with variety of heat sources like Steam, hot water, oil, gas, exhaust gas & combination of it.
What is vapour absorption refrigeration?
Similar to vapour compression refrigeration systems, vapour absorption refrigeration systems have also been commercialized and are widely used in various refrigeration and air conditioning applications. Since these systems run on low-grade thermal energy, they are preferred when low-grade energy such as waste heat or solar energy is available.
What are the fluids used in the absorption system?
The most commonly used fluids in the absorption system are water as absorbent and ammonia as refrigerant. The vapour from the evaporator is allowed to be mixed and absorbed in the absorber.
What are the components of vapour absorption system?
The various parts of the vapour absorption system are absorber, solution heat exchanger, evaporator, condenser and generator. Energy consumption and energy savings in terms of energy and fuels are calculated. The Overall heat transfer coefficient, effectiveness and COP of the heat exchanger are measured.