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れんまあさま
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2 わかりやすい熱力学第 3 版サンプルページこの本の定価判型などは, 以下の URL からご覧いただけます. このサンプルページの内容は, 第 3 版発行時のものです.

4 i

5 ii 49 7

6 iii

7 iv

8 (Count Rumford, B. Thompson) (S.H.Davy) (G. Amontons) (D. G. Fahrenheit) (A. Celsius) 19 (J. R. Mayer) (J.P.Joule) (energy) (W.J.M.Rankine) (R.J.E.Clausius) W. Thomson

9 2 1 (W. Ostwald) (A. Einstein) (E = mc 2 E: (J) m: (kg) c: (m/s)) (T. Newcomen) 1712 (J. Watt) 1769 (N.L.S.Carnot)

10 3 p v T R pv = RT (1.1) (1.1)

11 (heat) (energy) (temperature) C F SI K t [ C] F [ F] T [K] F = 9 5 t +32, t = 5 (F 32) 9 (2.1) T = t (2.2)

12 2.2 5 Kelvine K C F K C F 2.2 (pressure) 1m 2 1N 1Pa 1Pa=1N/m 2 =1kg/(m s 2 )=1J/m 3 (2.3) 1kPa=10 3 Pa, 1MPa=10 6 Pa (2.4) 1Pa bar hpa 1bar=10 5 Pa = 10 5 N/m 2 (2.5) 1 hpa = 100 Pa (2.6) g m/s g/cm 3 0 C 760 mm 760 mmhg

13 6 2 1 = 760 mmhg = kpa (2.7) (gauge pressure) (absolute pressure) (vacuum) mmhg % 0% J 1J 1N 1m 1J 1J/s 1W 1J=1N m =1W s (2.8) (specific heat) 1kg 1 C G [kg] dq [J] dt [ C] dt dq G dt dq G dq = cg dt (2.9)

14 2.4 7 c 1kg 1 C c (2.9) c kj/(kg K) c = c(t) [kj/(kg K)] (2.10) 1kg t 1 [ C] t 2 [ C] q 12 q 12 = t2 t 1 c(t)dt [kj/kg] (2.11) t 1 t 2 c m c m 1 c m = t 2 t 1 t2 t 1 c(t)dt [kj/(kg K)] (2.12) q 12 q 12 = c m (t 2 t 1 )[kj/kg] (2.13) 2.4 1kg (specific volume) 1kg m 3 /kg 1m 3 (specific weight) kg/m 3 v ρ v = 1 ρ [m3 /kg], ρ = 1 v [kg/m3 ] (2.14)

15 kgf kgw G [kgf] G [kg] 1kg kgf m kg s K SI F [ F] t [ C] ( 1 ) t = 2 F + 1 ( 1 ) 10 2 F F t = = 1110 C ±10 C mmhg 830 kpa MPa 700 mmhg 760 mmhg 2.5 G [kg] t 1 [ C] t 2 [ C] c t c = α + βt + γt 2 [kj/(kg K)] (a) (b) (a) t 1 t 2 [ C] c m (b) t 1 t 2 [ C] Q

16 2.6 0 t [ C] c m c m t = t 0 c dt 9 t c c m ( dcm ) c = c m + t dt 0 t [ C] 600 C c [kj/(kg K)] t c m kw 15 C 0.8 L 75% kg 800 C 20 C 45 C kj/(kg K) kg/m 3 5kg mm 210 mm 40 g

18 p v h s 1980 h s (i) 3 (ii) 4 (iii) 5 (iv) h s (i) C t [ C] p [MPa, mmhg] v [m 3 /kg] v [m 3 /kg] h h [kj/kg] r = h h [kj/kg] s s [kj/(kg K)] (ii) MPa p [MPa, mmhg] t [ C] (iii) p t [ C] v [m 3 /kg] h [kj/kg] s [kj/(kg K)]

19 78 7 (iv) x v (7.3) h s h = xh +(1 x)h (7.7) s = xs +(1 x)s 3 4 t p 0.8 MPa t r MPa t = C r = kJ/kg p t MPa C [m 3 /kg] [kj/kg] [kj/(kg K)] v v h h r = h h s s p t 15 MPa 420 C v h s 5 v = m 3 / kg h = kJ/kg s = kj/(kg K) MPa C C v h s MPa 3250 kj/ kg 15 MPa

20 MPa C C h h = 3250 kj/kg 470 C 480 C t = ( ) = C h s h s 1904 (Mollier) 7.6 h s h s 7.6 h s ABDEFG dp =0 (3.16) 7.6 h s

21 80 7 dq =dh vdp =dh dt =0 dp =0 h s h s h 1 h 2 [J/kg] w 2 w 2 = 2(h 1 h 2 )[m/s] (7.8) J/kg 8.1 h s 7.6 K L 7.7 h s 1(p 1,t 1 ) 2(p 2,t 2 ) t 2 p p x

22 (throttling calorimeter) 7.8 T s T s p h 11 p h h s 7.6 (7.8) 1kg ( q =0) h s 7.9 h s 7.10 h s

24 NH 3 CO C MPa 15 C C MPa C kj/kg 15 C c p /c v % (brine) C p h 11.9

25 C 7 p h 11.6 LiBr NaCl A B C D A A 11.10

26 (comfort air conditioning) (industrial air conditioning) (air conditioning) (humid air, moist air) t [ C] p w [kpa] p w p w (dew point) t [ C] ρ w [kg/m 3 ] p w [kpa] s (relative humidity) (specific humidity) ϕ = p w = ρ w p ws ρ ws (11.9) x = ρ w ρ a (11.10) ρ a ϕ x

27 x = ρ w = p / w pa ρ a R w T R a T = R a pw R w p a =0.622 p w p a =0.622 p ws p a ϕ (11.11) ϕ [%] DB WB 11.2 [ C] 11.2 ϕ [%] [ C] t DB [ C] t WB [ C] 11.11

28 t d [ C] ϕ x v [m 3 /kg] h [kj/kg] t x (carrier) (kg* 1kg ) 1 t d ϕ x v h 24 C 19 C C ε = 64% x =0.012 kg/kg v =0.856 m 3 /kg h = kj/kg 2 25% % 15 C 10 C :1 3 t d =17.6 C ϕ = 59%

29 3 c SI SI FAX Printed in Japan ISBN

<4D F736F F D B B83578B6594BB2D834A836F815B82D082C88C60202E646F63>

<4D F736F F D B B83578B6594BB2D834A836F815B82D082C88C60202E646F63> 基礎からの冷凍空調サンプルページこの本の定価判型などは, 以下の URL からご覧いただけます. http://www.morikita.co.jp/books/mid/067311 このサンプルページの内容は, 初版 1 刷発行当時のものです. http://www.morikita.co.jp/support. 03-3817-5670FAX 03-3815-8199 i () () Q&A