What does the catalytic converter on an automobile do?

620

Explain the some guidelines for sizing a psv for a fire scenario on a vessel in a refinery service?

593

What is a common failure mechanism for above ground atmospheric storage tanks?

638

How to caliculate the boil up rate, dia and height in both packed and tray distillation columns and any referance books for the design.

2110

What are the assumptions made for kynch theory?

630

What are the disadvantages of using gear pumps?

553

What is difference between overall heat transfer coefficient & individual heat transfer coefficient?

637

At what temperature is glass fused to steel in the making of glass-lined equipment?

602

X is strong but has a very low density (1% of traditional earth materials.) and hence light weight. It is a recyclable material. The compression behaviour of X is strain rate dependent. Higher strain rates result in higher initial modulus and higher compression strength. It can also withstand unlimited number of cycling loading provided the repetitive loads are kept below 80% of the compressive strength. The internal structure of the material includes air-traps which make it poor heat conductor. X is non- biodegradable and chemically inert in both soil and water. Most acids and their water solutions do not attack it; however strong oxidizing acids do. Solvents which attack X include esters, ketones, ethers, aromatic and aliphatic hydrocarbons and their emulsions, among others. It does not support bacterial/fungal growth as well .It also has significant acoustic properties and effectively reduces the transmission of airborne sound. X is combustible and should not be exposed to open flame or other ignition sources. Combustion products are carbon monoxide, carbon dioxide, water and soot. Long-term exposure to sunlight causes yellowing and a slight embrittlement of the surface due to ultraviolet light. X is able to withstand the rigours of temperature cycling, assuring long-term performance.

1500

How can we derive power factor equation p=vi cos phi?

641

What are the uses of quicklime?

610

What is maximum recommended velocity for steam in a plant pipe network?

609

Is it advisable to cool a fin fan by spraying demineralized water on it?

693

What are the advantages of using gear pumps?

550

Explain the strategies acquired to cure tube vibration and exchangers in a shell?

563