144 
DE. J. P. JOULE ON THE SUEEACE-COXDENSATION OF STEAM. 
Table I, (continued). 
1. 
2. 
3. 
4. 1 
5. 
6. 
„ 1 
7 . 1 
Total j 
Mean temperature of 
Dura- 
refri- 
refrigerating water. 
Description. 
No. 
tion of 
pressure ; 
of steam in ' 
gerating 
water 
above its 
ment, in 
the boiler, 
At its 
minutes. 
in inches 
overflow. 
At its exit. 
of meromy. 
in inches. 
entrance 
(0- 
Copper steam-tube 4 feet long, area '7225 sq. ft. 
Befrigerating water mov- . 
104 
30 
39-99 
21-94 
14-085 
36-025 
Outer tube 1 inch interior diameter. 
Between the tubes there was a spiral of 103 con- 
iug in a direction contrary 
to that of the steam. 
105 
30 
42-01 
24-36 
14-04 
61-013 
volutions, composed of copper wire '105 inch thick. 
106 
20 
45-15 
245 
13-95 
37-583 
107 
15 
42-1 
270 
13-59 
48-768 
108 
12 
45-63 
257 
13-59 
51-97 
109 
50 
50-35 
66-9 
13-567 
33-782 ' 
110 
80 
40-6 
58 
13-545 
46-27 j 
Refrigerating water mov- 
111 
30 
50-14 
48 
12-44 
23-135 ! 
ing in the same direction 
112 
30 
56-3 
48 
12-44 
40-29 1 
with the steam. 
113 
30 
57-66 
48 
12-6 
54-32 1 
1 
Copper steam- tube 2 feet long. Interior diameter 
Refrigerating water mov- 
114 
30 
52-48 
24 
12-29 
26-8 ! 
•63 inch, exterior ’75 inch, mean area a='3612 
ing in the same direction 
115 
30 
45-42 
24 
10-935 
27-46 ' 
sq. ft. 
Outer tube, interior diameter 1 inch. 
as the steam. 
116 
30 
48-34 
24 
11-07 
23-17 1 
Between the tubes there was a spiral consisting 
117 
30 
50-9 
24 
11-07 
28-08 ! 
of oO convolutions of copper wire '105 inch thick. 
118 
30 
44-02 
24 
9-88 
41-1 i 
119 
30 
44-125 
24 
10-17 
45-73 J 
120 
30 
42-61 
24 
10-17 
59-27 
Refrigerating water mov- 
121 
15 
44-32 
176 
8-01 
12-93 j 
ing in a direction contrary 
122 
14 
46-15 
207 
8-01 
22-856 
to that of the steam. 
123 
15 
37-96 
193 
8-01 
29-825 ' 
124 
30 
44-41 
8-4 
7-2 
23-07 
125 
30 
43-84 
4-47 
7-2 
48-74 
126 
30 
45-22 
5-8 
7-72 
66-31 
Copper steam-tube 4 feet long. Interior diameter 
Refrigerating water mov- 
127 
30 
42-14 
274 
3-64 
16-48 
■63 inch, exterior diameter ’75 inch, mean area 
ing in a contrary direction 
128 
30 
45-37 
248 
3-64 
29-93 
a =-7225 sq. ft. 
to the steam. 
129 
20 
46-37 
218 
3-65 
51-19 : 
Outer tube, interior diameter 1 inch. 
Between the tubes there was a sph-al consisting of 
130 
30 
46-38 
48 
3-51 
32-0-2 
96 convolutions of copper wire "105 inch thick. 
Refrigerating water mov- 
ing in the same direction 
131 
30 
52-24 
48 
3-51 
42-02 
as the steam. 
132 
20 
49-07 
48 
3-51 
71 -Sl 
Copper steam-tube 6 feet long. Interior diameter 
Refrigerating water mov- 
133 
30 
39-2 
22-1 
5-53 
82-25 
•6-3 inch, exterior diameter •7.5 inch, mean area 
ing in a direction contrary 
134 
30 
38-43 
24 
5-65 
; a=I-0837 sq. ft. 
j Interior diameter of the outer tube I inch. 
to that of the steam. 
135 
30 
41-06 
22-6 
5-76 
38-22 i 
Between the tubes there was a spiral consisting 
136 
30 
47-75 
341 
4-95 
29-72 
of 143 convolutions of copper wire 'lOo inch tliick. 
137 
30 
45-43 
315 
4-905 
32-81 
138 
30 
51-01 
279 
3-87 
42-52' 
•139 
20 
44-8 
261 
3-87 
67-27 1 
140 
15 
45-6 
250 
3-85 
77-45 1 
141 
30 
42-67 
301 
2-65 
32-07 : 
142 
30 
42-02 
301 
2-65 
32-96 1 
143 
30 
39-34 
327 
3-28 
37-69 ' 
144 
30 
41-62 
337 
3-28 
28-22 
Refrigerating water mov- 
145 
30 
43-88 
72 
4-3 
41-8 
ing in the same direction 
146 
30 
43-28 
72 
4-3 
50-32 
as the steam. 
147 
30 
41-11 
72 
4-3 
76-47 
Iron steam-tube 4 feet long. Exterior diameter 
Refrigerating water mov- 
148 
30 
37-65 
48 
4-72 
31-11 
•74 inch, interior diameter '602 inch. 
Interior diameter of the*outer tube -87 inch. 
ing in the same direction 
as the steam. 
149 
30 
37-84 
48 
4-72 
61-27 i 
A spiral consisting of 55 convolutions of copper 
wire 'OoS inch thick was placed between the tubes. 
1 Refrigerating water mov- 
ing in a direction opposite 
to that of the steam. 
! 150 
151 
30 
20 
40-33 
40-57 
00 
0^ 
4-2 
4-2 
21-32 ^ 
42-7 1 
