EBK NUMERICAL METHODS FOR ENGINEERS
7th Edition
ISBN: 9780100254145
Author: Chapra
Publisher: YUZU
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Chapter 31, Problem 7P
Use Excel to perform the same computation as in Fig.31.14, but insulate the right-hand edge and add a heat sink of
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Q3: Consider evaluation of different temperatures of solar photovoltaic/thermal system
(PVT) as shown in Figure 1(a). The following set of differential equations represent
energy balance equations to be solve using matrices and eigenvalues using MATLAB:
dTglass
= -0.75Tgtass + 0.75TpvT
(1)
dt
- 1.187glass – 22Tpyr + 23Twax
(2)
dt
dTwax
12Tglass + 18TpyT – 19 Twax
(3)
dt
Where, Tgtass , TPVT, and Twax, are temperatures illustrated in Figure 1(b). At time t-0 the initial
conditions are Tglass = 35 , Tpyr = 33, and Twax = 31 °C.
Cold suppty
In frem water
Tank
Glass
PVT
Espann
Nane-PCMPVT Collector
Wax
Tubes
Sterg Tank
Nanofluid
Heat Exchanger
Contalner
Tepe
Teek oe
Pump
for drain
Q3: Consider evaluation of different temperatures of solar photovoltaic/thermal system
(PVT) as shown in Figure 1(a). The following set of differential equations represent
energy balance equations to be solve using matrices and eigenvalues
dTglass
= -0.75Tglass + 0.75TPVT
(1)
dt
- 1.18Tglass – 22TpyT + 237wax
(2)
dt
dTwax
12Tglass + 18TpyT – 19 Twax
(3)
dt
Where, Tptass, TPVT, and Twax, are temperatures illustrated in Figure 1(b). At time t-0 the initial
conditions are Tglass = 35 , Tpyr = 33, and Twax = 31 °C.
Cold sappty
In frem water
Tank
Glass
PVT
Enpann
Nane-PCMPVT Collector
Wax
Tubes
Sterg Tank
Mat
Nanofluid
Heat Exchanger
Tepe
Contalner
Tuek et
Pump
for drain
Chapter 31 Solutions
EBK NUMERICAL METHODS FOR ENGINEERS
Ch. 31 - 31.1 Repeat Example 31.1, but for and a uniform...Ch. 31 - Repeat Example 31.2, but for boundary conditions...Ch. 31 - Apply the results of Prob. 31.2 to compute the...Ch. 31 - Use Galerkins method to develop an element...Ch. 31 - Prob. 5PCh. 31 - 31.6 Develop a user-friendly program to model the...Ch. 31 - 31.7 Use Excel to perform the same computation as...Ch. 31 - Use MATLAB or Mathcad to develop a contour plot...Ch. 31 - 31.9 Use Excel to model the temperature...Ch. 31 - 31.10 Use MATLAB or Mathcad to develop a contour...
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