The water chlorination system of a small town has two separate pipelines, each with a pump which supply chlorine to the water at prescribed rates. The two pumps are denoted A and B respectively. During normal operation, both pumps are functioning, and thus are sharing the load. In this case, each pump is operated on … Read more
At an airport, there are a number of barriers in place to prevent an aircraft from entering a runway while there is another aircraft about to take off or land. For a collision between two aircraft to happen, all the following barriers must fail: First the pilot should stop at a designated place and wait … Read more
In a process plant, a crane is being used to lift new equipment to be installed in the plant. The lift consists of the crane wire, the crane hook, and the strap securing the equipment so it can be lifted. Further, the wire is equipped with two braking systems: an engine brake that is normally … Read more
In a process plant, flammable gas that is accidentally released can be detected by an automatic gas detection system or by a process operator working in the area. The process operator can only detect gas if she is present in the area where the gas is released. There are several operators working in the plant, … Read more
Wridemy Plagiarism Free Paper Writing Website. Visit us here Wridemy Please find three people, preferably from an older, a younger, and a peer-generation with whom to have a conversation about the photographic.I’ll leave it up to you as to what questions you’d like to ask, and issues or experience to discuss; you are welcome use … Read more
NORSOK Standard S-001 contains a description of the most important barriers/barrier systems on offshore installations in Norway (Section 5 through 24). The most important hazardous events that these barriers shall protect against are the following: Releases of oil/gas from the process plant. Releases of oil/gas from risers and pipelines. Releases of oil/gas from storage. Releases … Read more
In a gas processing plant, releases of flammable gas may occur and early detection is important. There is an automatic gas detection system, but in addition, the gas release may be detected by two operators working in the area. The following information is provided: Each operator spends 30% of her time in the area and … Read more
a task analysis was performed for fixing your bicycle. Perform a SHERPA analysis of some of the tasks required to do this. The worksheet in Figure 15.6 may be used, but you may delimit the analysis to cover only the first six columns in the worksheet. it is stated that operators typically are assumed to … Read more
Different aspects of risk are considered. In a shipping company, the following situations arise: New regulations are introduced that imply stricter requirements to life-saving equipment on ships (e.g. lifeboats, liferafts, survival suits). This applies to all new ships that are being built. The company has recently received two new-built ships and put these into operation. … Read more
Consider the hazardous event “Fire in apartment building.” The fire department in a large city is concerned about the risk associated with this event and are trying to identify risk indicators that can help them to monitor trends in risk. Suggest some relevant indicators. The fire department in Problem 16.3 wants to distinguish between leading … Read more
