Dual port vapor injected compression: In-system testing versus test stand testing, and mapping of results

Evaluation of Dynamic Probing Testing Effect in Hand Excavated Pit on Test Results Using Numerical Modeling

In Iran, using the hand excavated pits (wells) have been more common compared to other countries. As a matter of fact, recent years, utilizing the dynamic probing test (DPT) in these types of pits has been significantly developed in Iran. This is while the standard state of doing this test is from the ground level. In this work, the dynamic probing test is carried out in two similar wells with ...

Development of a compression system dynamic simulation code for testing and designing of anti-surge control system

In recent years, several research activities have been conducted to develop knowledge in analysis, design and optimization of compressor anti-surge control system. Since the anti-surge control testing on a full-scale compressor is limited to possible consequences of failure, and also the experimental facility can be expensive to set up control strategies and logic, design process often involves...

Repeat testing of critical laboratory test results.

To the Editor.—Recent literature has explored the value of repeat testing of alert or critical laboratory test results, as illustrated in the article by Toll et al. Using a large data set for selected tests, that article makes the point that repeat testing is rarely of value. All too often, laboratories retest results that are considered ‘‘critical’’ because of a purely emotional desire to avoi...

Engine Testing Engine Test System

Engine testing involves measurement of rotating speed and torque of the engine by applying load controlled by a dynamometer connected to its output shaft. HORIBA has developed various types of dynamometer for the purpose of engine testing. They are mainly classifi ed into two types; one is absorbing only dynamometer such as hydraulic dynamometers and eddy-current dynamometers, the other is abso...

Toxicity Testing and the Toxicity Testing and the Current Situation in IRAN