# Presentation: 807392

## Conversion Editor

- U.S. Nuclear Regulatory Commission
- Rockville, Maryland
- Pacific Northwest National Laboratory
- November 15-17, 2005

**Notes:**
I would like to help set a positive tone for this workshop.  This workshop is very important as it brings disparate groups together to coordinate development and assessment activities to solve complex environmental problems.

The focus is on communications to mutually benefit from each other’s development activities.   

We have invested significant resources in development of these systems.  Each system is valuable and meets a need of its developer.  There is no “best” system; there are many acceptable systems, and even the acceptable systems are rendered unacceptable if implemented improperly.

## (Units) Conversion Editor

**(Units) Conversion Editor**

## To Existing Measures,Edit Existing Unit Conversions andAdd New Unit Conversions

## (Units) Conversion Editor

**(Units) Conversion Editor**

- A Green text box identifies user-defined input

## Example 1

- Meaning:

- equals

- 1

- m

- ft

- 3.2808

- 3.2808

- =

- 3.2808

- +

- 0

- m

- ft

- 1

- Slope

- Y-Int

- Unit

- Base Unit

- Factors

- Unit

- ft

- Define the new Unit “ft” (for feet) as a function of the Base Unit “m” (for meters)
- 	ft = independent variable
- 	m = dependent variable
- 	y ft = 3.2802 (x m)

- Base Unit Value

- Unit Value

**Example 1**

## Example 2

- 	C = independent variable
- 	F = dependent variable
- 	y F = 1.8 (x C) + 32

- Using the equation of a straight line:  y = mx + b

- Meaning:

- equals

- 1

- C

- F

- 33.88

- 212

- =

- 1.8

- +

- 32

- C

- F

- 100

- Slope

- Y-Int

- Unit

- Base Unit

- Factors

- Unit

- F

- Base Unit Value

- Unit Value

**Example 2**

## Edit Degrees F, and Input Correction

**Edit Degrees F, and Input Correction**

- Incorrect conversion, so “Edit”

## There are 33.8 F to one C

**There are 33.8 F to one C**

- User-defined

- F = 9/5 C + 32

## Example 3

- Meaning:

- equals

- 1

- cm

- nm

- 1.0E+07

- 1.0E+07

- =

- 1.0E+07

- +

- 0

- cm

- nm

- 1

- Slope

- Y-Int

- Unit

- Base Unit

- Factors

- Unit

- nm

- Define the new Unit “nm” (for nanometers) as a function of the Base Unit “cm” (for centimeters):
- 	cm = independent variable
- 	nm = dependent variable
- 	y nm = 107 (x cm)

- Base Unit Value

- Unit Value

**Example 3**

## Add the Conversion “nm”

**Add the Conversion “nm”**

## There are 107 nm to one cm

**There are 10****7**** nm to one cm**

- User-defined

## Example 4

- 	C = independent variable
- 	K = dependent variable
- 	y K = x C + 273

- Using the equation of a straight line:  y = mx + b

- Meaning:

- equals

- 1

- C

- K

- 274

- 274

- =

- 1

- +

- 273

- C

- K

- 1

- Slope

- Y-Int

- Unit

- Base Unit

- Factors

- Unit

- K

- Base Unit Value

- Unit Value

**Example 4**

## Add the Conversion degrees Kelvin “K”

**Add the Conversion degrees Kelvin “K”**

## There are 274 K to one C

**There are 274 K to one C**

- User-defined

- K = C + 273

## Add New Measures (e.g., Energy)andUnit Conversions (e.g., Joules, Calories, etc.)

## Example 5

**Example 5**
**Add the ****Measure**** of Energy**

- Add Energy

## Add a Measure of “Energy” with a Base Unit of “Joules”

**Add a Measure of “Energy” with a Base Unit of “Joules”**

## Add Units of Calories “cal”

**Add Units of Calories “cal”**

## 1 cal = 4.184 J

**1 cal = 4.184 J**
** ****or 1 J = 0.239 cal**

## ProblemAdd the following Energy Units

- 1 J = 0.239 cal = 6.238E+18eV = 9.869E-03 lit-atm
- 	      = 0.738 ft-lbs = 9.483E-4 BTU
- 1 cal = 4.184 J = 2.61E19 eV = 4.129E-2 lit-atm
- 1 BTU = 778.3 ft-lbs = 1054.5 J
- 1 BTU equals how many calories?

## Relationship Between BTU and Joules

**Relationship Between BTU and Joules**

- 1 BTU = 1054.5 J _or_ 1 J = 9.48317E-4 BTU

- Note the difference
- in significant figures