corrections2001.pdfsmall.pdfMIT OpenCourseWare http://ocw.mit.edu 2.61 Internal Combustion Engines Spring 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms.Corrections to text (current printing): (JBH 10/29/01) p. 77 Table 3.2. The enthalpies of formation for C8H18 are for n-octane. For isooctane they are –224.1 and –259.3 MJ/kmol for gas and liquid C8H18, respectively. p. 89: Middle of page: xCO2, xCO and x02 should be x˜CO2 , x˜CO,and x˜O2 . p. 122: Figure 4-10 is a repeat of Fig. 4-3 due to an editing error, though Fig. 4-10 is correctly labeled “burned mixture properties.” A correct Fig. 4-10 is attached. It is only slightly different: e.g., at 1000 K the burned mixture us for φ= 1.2 is 4% lower than the unburned mixture value, and hs is 1% lower than the unburned mixture value. These differences scale, approximately, with φ . p. 151 Underneath Eq (4.65) insert: K is given by Eq. (4.63) p. 152: Line 5. CmHnOr should be CnHmOr . p.188 In Eq. (5.66c), m is omitted. It should read: S3b − S2 = mcv ln  T3a   + mcp ln  T3b  = mcv lnα+ mcp ln β T2 T3a  p. 306: Equation (7.18): The sign at the beginning of the second line of the equation (a minus sign) should be a plus sign. p. 388: Equation (9.27). The sign in front of the third term in the square bracket should be − , not + :  T′ T 1  γ− 1 i.e.,  T w + Tw (γ− 1) − bTw lnγ ′ − 1  p. 553: Equation (10.37). There should be a + sign between the two round brackets within the square bracket., i.e.,  11   21.2 0.63  τid (CA) = (0.36 + 0.22Sp )expEA ˜ −    R T 17,190 + p − 12.4   p. 620: The reference for Fig. 11-33 should be Yu, R.C., Wong, V.W., and Shahed, S.M., “Sources of Hydrocarbon Emissions from Direct Injection Diesel Engines,” SAE paper 800048, SAE Trans., vol. 89, 1980. (This is a new reference; make it reference 87 and add it to p. 667.) p. 679: In the inserted graph in Figure 12-5, the scale for thermal conductivity kg is not correct. The values should be multiplied by 5 x 105: e.g., the peak value of 10 x 10-8 = 10-7 W/m.K should be 10-7 x (5 x 105) = 5 x 10-2 W/m.K. p. 880 In Fig. 15-45, the units for pressure (middle left) should be kPa and not