What is the difference between resident and residence?

What is the difference between resident and residence?

Resident in a noun, meaning a person living in a space, whether it’s a house, an apartment, a dorm, or a facility. Residence is also a noun, it means where persons live.5-noy, 2014

What’s another word for residence?

Synonyms of residence

• abode,
• diggings,
• domicile,
• dwelling,
• fireside,
• habitation,
• hearth,
• hearthstone,

What is a residence time?

Residence time is defined as the amount of water in a reservoir divided by either the rate of addition of water to the reservoir or the rate of loss from it.

Why is residence time important?

Residence time plays an important role in chemistry and especially in environmental science and pharmacology. Under the name lead time or waiting time it plays a central role respectively in supply chain management and queueing theory, where the material that flows is usually discrete instead of continuous.

Which material has the longest residence time?

The residence time in lakes and glaciers varies between 20 and 100 years, but the longest residence times are in the ocean (3,200 years) and in the groundwater (up to 10,000 years). The importance of the water cycle for our climate is significant.

How do you calculate residence time?

The MRT is calculated by summing the total time in the body and dividing by the number of molecules, which is turns out to be 85.6 minutes. Thus MRT represents the average time a molecule stays in the body.28-mar, 2019

What is the difference between space time and residence time?

space time is the time required to process the one reactor volume of feed and the residence time is the amount of time spent by a particle until it exits the reactor. “Residence time” is the average amount of time that a particle spends in a particular system(reactor here).

How are flux and residence time related?

Residence time is the total amount in the reservoir divided by the total flux in or out. As input increases residence time decreases and when input decreases residence time increases.

How is residence time of water determined?

residence time: Tr = V/I [T], a measure of the average time a molecule of water spends in a reservoir. The residence time defined for steady-state systems is equal to the reservoir volume divided by the inflow or outflow rate. residence times of water in the compartments of the hydrologic cycle (Table 1.1).

What is the water cycle powered by?

The sun, which drives the water cycle, heats water in the oceans. Some of it evaporates as vapor into the air. Rising vapor cools and condenses into clouds.14-dek, 2016

What is groundwater residence time?

The length of time water spends in the groundwater portion of the hydrologic cycle may be as little as days, or as much as 10,000 years or more. This is called “residence time.” For example: A raindrop may fall to the earth’s surface.

What is residence time in injection molding?

Plastic residence time is the time that plastic or resin is subjected to heat during fabrication. An injection system features a hopper, barrel, reciprocating screw, and injection nozzle. The shot size is the maximum amount of plastic injection mold that can be injected in one molding cycle.11-noy, 2019

What is plasticizing capacity in injection molding?

The plasticizing capacity is the amount of plastic that can be melted and homogenized with heat in the barrel per unit of time (lb/h or kg/h). If the plasticizing capacity is too low in relation to the shot size required, the chances are that the injected plastic will not be com- pletely melted.

What is shot capacity in injection molding?

The maximum weight of material that can be delivered to an injection mould by one stroke of the ram.

What is shot weight in injection molding?

To calculate the shot size in injection molding, we should know the density of the raw material if we are using a high heat and high flow raw material with its density of 1.52g per cube centimeter. Let’s take it as 28 mm, which is 2.8 cm, then if we have shot weight as 40.6 gms.

What is back pressure in injection molding?

Back Pressure in an injection molding process is often defined as “the resistance of the screw to recover as the metering section pumps molten plastic through the non-return valve to the front of the screw.” When this position is reached, the screw will stop rotating.1-may, 2018

How many types of injection molding machines are there?

There are many different types of molding machines, depending on what you are creating and how the machine affects the product. Machines are classified mainly by the type of driving system they use: hydraulic, electric, and hybrid.25-may, 2017

How do you calculate the weight of mold?

For those of you who do not have scales here is an easy way to find mold weight. Measure overall dimensions of the mold. Refer to above image of mold for length, width & height. Measure overall dimensions of the mold.29-apr, 2019

How do you find the weight of material?

The formula for weight calculation is:

1. l = length in mm.
2. w = width in mm.
3. t = thickness in mm.
4. η = Specific material density ( e.g.: steel = 7.85 kg / dm³)

What are the types of injection mold?

Plastic Injection Mould Types

• Low / High Cavitation. Single cavity molds are designed to produce one part per cycle.
• Family Mold.
• Unscrewing Molds.
• Hot Runner Molds.
• Cold Runner Molds.
• Insulated Runner Molds.
• Two / Three Plate.

How do you identify injection molding?

A clear indication as to whether an object has been injection moulded is its complexity, signs of feed points (see Fig. 1) or ejector pin marks (see Fig. 2). Nearly all, complex three-dimensional plastic components are injection moulded.

Is 3D printing cheaper than injection molding?

Injection molding is cheaper than 3D printing if you produce more than 100 parts. While the cost per unit using 3D printing stays relatively unchanged, the price for injection molding becomes dramatically better the more pieces you manufacture with your mold.25-noy, 2019

What are the stages of injection molding?

There are four stages in the cycle. These stages are the clamping, injection, cooling and ejection stages.24-iyl, 2019

What is the difference between thermoforming and injection Moulding?

In thermoforming, a flat sheet of plastic is heated to a pliable temperature, then molded to the tool’s shape using suction from a vacuum or both suction and pressure. In injection molding, plastic pellets are heated to a liquid state and injected into the mold.12-avg, 2019