Title: Unit 7 Homework Assignment
Course: BFM 202 Biodiesel Production > Section: BFM 202 Biodiesel Production

Unit 7 Homework Assignment

Credits
BFM 202 Biodiesel Production Unit 1 Homework Assignment has been adapted from "ENGY 131 Unit 1 Homework" by Southeastern Illinois College.

ENGY 131 Biodiesel Production course content by Southeastern Illinois College is licensed under a Creative Commons Attribution 3.0 Unported License. Except where indicated otherwise.

Based on the unit readings,
answer these questions
in a document.
BFM202 unit 7 homework

Chapter 6.3 Cold Weather Properties and Performance of Biodiesel

Homework – read pp. 147 – 192

2 points each

1. Biodiesel as defined in ASTM 6751 specifications has many advantages for an alternative fuel.  However, what performance concern is there when temperatures approach 0^o C? (page 147, chapter 6.3)
2. All diesel fuels are susceptible to performance issues when fuel systems are subject to cold temperatures. T or F. (page 147, chapter 6.3).
3. What problems do the solid wax crystals create if fuel is left unattended in cold temperatures for a long period of time? (Page 148, chapter 6.3).
4. Define Cloud Point (CP). (Page 148, chapter 6.3).
5. Define Pour Point (PP). (Page 148, chapter 6.3).
6. Although CP and PP are relatively easy to measure on a bench scale, neither parameter is suitable for predicting cold flow operability of diesel fuels under field conditions. T or F. (Page 148, chapter 6.3).
7. In terms of cold flow performance, Freezing Point (FP) is generally more conservative than Cloud Point (CP). T or F. (Page 148, chapter 6.3).
8. Define Cold Filter Plugging Point (CFPP). (Page 150, chapter 6.3).
9. Define Low-temperature Flow Test (LTFT). (Page 150, chapter 6.3).
10. Most fluids increase in viscosity as temperature decreases. T or F. (Page 151, chapter 6.3).
11. Feedstocks with lower concentrations of saturated long chain fatty acids tend to yield biodiesel with more favorable cold flow properties. T or F. (Page 152, chapter 6.3).
12. Define the Cold Soak Filtration Test (CSFT). (Page 170, chapter 6.3).
13. Why are Cold Flow Improver (CFI) additives used with petrodiesel? (Page 173, chapter 6.3).
14. Discuss the effects Cold Flow Improver (CFI) additives have on Biodiesel. (page 176/177, chapter 6.3).
15. Read the “Outlook for Future Studies” and comment on the effects of cold weather on properties and performance continue to influence development of biodiesel as an alternative fuel or fuel extender in petrodiesel. (Page 191/192, chapter 6.3).