Practice problem 3 solution

# Practice problem 3 solution - A boiler is burning methane...

This preview shows pages 1–2. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: A boiler is burning methane gas (CI-14) with 20% excess air to generate steam. The methane and combustion air enter the boiler at 25 C and the combustion gases leave at 150 C. Water comes in at 10 C, and leaves as steam at 130 C. How many kg of steam can be generated per kg of C02 emitted to the atmosphere? AHof, CH4, gas 2 -74.84 kamOl AH%, 002, gas 2 -393.51 kJ/mol AHUf, H20, gas: -241.83 kJ/mol AHOf, H20, liquid = -285.84 kJ/mol am oero @ oc = ZSOOkJ/kgK 2 0 ﬂ Cp (for all gases and vapors): 30 J/mol.l<. Cp for H20 (liquid): 4.185 kJ/kg.K 3W :. 0.6?(ﬁf/WW ~37 ﬂleg—Wﬂz : @ [(\$006 ...
View Full Document

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern