**Commenced**in January 2007

**Frequency:**Monthly

**Edition:**International

**Paper Count:**5793

# Search results for: low-grade heat source

##### 5793 Effects of Heat Source Position on Heat Transfer in an Inclined Square Enclosure Filled with Nanofluids

**Authors:**
Khamis Al Kalbani

**Abstract:**

**Keywords:**
heat source,
inclined,
square enclosure,
nanofluids

##### 5792 2D and 3D Unsteady Simulation of the Heat Transfer in the Sample during Heat Treatment by Moving Heat Source

**Authors:**
Zdeněk Veselý,
Milan Honner,
Jiří Mach

**Abstract:**

**Keywords:**
computer simulation,
unsteady model,
heat treatment,
complex boundary condition,
moving heat source

##### 5791 Numerical Study of a Nanofluid in a Truncated Cone

**Authors:**
B. Mahfoud,
A. Bendjaghlouli

**Abstract:**

**Keywords:**
heat source,
truncated cone,
nanofluid,
natural convection

##### 5790 Natural Convection of a Nanofluid in a Conical Container

**Authors:**
Brahim Mahfoud,
Ali Bendjaghlouli

**Abstract:**

**Keywords:**
heat source,
truncated cone,
nanofluid,
natural convection

##### 5789 Influence of Internal Heat Source on Thermal Instability in a Horizontal Porous Layer with Mass Flow and Inclined Temperature Gradient

**Authors:**
Anjanna Matta,
P. A. L. Narayana

**Abstract:**

**Keywords:**
linear stability analysis,
heat source,
porous medium,
mass flow

##### 5788 Solar System with Plate Heat Exchanger

**Authors:**
Christer Frennfelt

**Abstract:**

**Keywords:**
district heating and cooling,
thermal storage,
brazed plate heat exchanger,
solar domestic hot water and combisystems

##### 5787 Numerical Study of Natural Convection of a Localized Heat Source at the up of a Nanofluid-Filled Enclosure

**Authors:**
Marziyeh Heydari,
Hossein Shokouhmand

**Abstract:**

**Keywords:**
nanofluid,
heat transfer,
heat source,
enclosure

##### 5786 Heat Source Temperature for Centered Heat Source on Isotropic Plate with Lower Surface Forced Cooling Using Neural Network and Three Different Materials

**Authors:**
Fadwa Haraka,
Ahmad Elouatouati,
Mourad Taha Janan

**Abstract:**

**Keywords:**
thermal model,
thermal resistance,
finite element simulation,
neural network

##### 5785 Mathematical Modelling and Parametric Study of Water Based Loop Heat Pipe for Ground Application

**Authors:**
Shail N. Shah,
K. K. Baraya,
A. Madhusudan Achari

**Abstract:**

**Keywords:**
loop heat pipe,
modelling of loop heat pipe,
parametric study of loop heat pipe,
functioning of loop heat pipe

##### 5784 A Second Law Assessment of Organic Rankine Cycle Depending on Source Temperature

**Authors:**
Kyoung Hoon Kim

**Abstract:**

**Keywords:**
Organic Rankine Cycle (ORC),
low temperature heat source,
exergy,
source temperature

##### 5783 Unsteady Heat and Mass Transfer in MHD Flow of Nanofluids over Stretching Sheet with a Non Uniform Heat Source/Sink

**Authors:**
Bandari Shankar,
Yohannes Yirga

**Abstract:**

**Keywords:**
unsteady,
heat and mass transfer,
manetohydrodynamics,
nanofluid,
non-uniform heat source/sink,
stretching sheet

##### 5782 Evaluation of Soil Thermal-Entropy Properties with a Single-Probe Heat-Pulse Technique

**Authors:**
Abdull Halim Abdull,
Nasiman Sapari,
Mohammad Haikal Asyraf Bin Anuar

**Abstract:**

**Keywords:**
entropy,
single probe thermal gradient,
soil thermal,
probe heat

##### 5781 Cascaded Transcritical/Supercritical CO2 Cycles and Organic Rankine Cycles to Recover Low-Temperature Waste Heat and LNG Cold Energy Simultaneously

**Authors:**
Haoshui Yu,
Donghoi Kim,
Truls Gundersen

**Abstract:**

_{2}power cycles are promising technologies to convert low-temperature waste heat and LNG cold energy into electricity. If waste heat and LNG cold energy are utilized simultaneously in one system, the performance may outperform separate systems utilizing low-temperature waste heat and LNG cold energy, respectively. Low-temperature waste heat acts as the heat source and LNG regasification acts as the heat sink in the combined system. Due to the large temperature difference between the heat source and the heat sink, cascaded power cycle configurations are proposed in this paper. Cascaded power cycles can improve the energy efficiency of the system considerably. The cycle operating at a higher temperature to recover waste heat is called top cycle and the cycle operating at a lower temperature to utilize LNG cold energy is called bottom cycle in this study. The top cycle condensation heat is used as the heat source in the bottom cycle. The top cycle can be an ORC, transcritical CO

_{2}(tCO

_{2}) cycle or supercritical CO

_{2}(sCO

_{2}) cycle, while the bottom cycle only can be an ORC due to the low-temperature range of the bottom cycle. However, the thermodynamic path of the tCO

_{2}cycle and sCO

_{2}cycle are different from that of an ORC. The tCO

_{2}cycle and the sCO

_{2}cycle perform better than an ORC for sensible waste heat recovery due to a better temperature match with the waste heat source. Different combinations of the tCO

_{2}cycle, sCO

_{2}cycle and ORC are compared to screen the best configurations of the cascaded power cycles. The influence of the working fluid and the operating conditions are also investigated in this study. Each configuration is modeled and optimized in Aspen HYSYS. The results show that cascaded tCO

_{2}/ORC performs better compared with cascaded ORC/ORC and cascaded sCO

_{2}/ORC for the case study.

**Keywords:**
LNG cold energy,
low-temperature waste heat,
organic Rankine cycle,
supercritical CO₂ cycle,
transcritical CO₂ cycle

##### 5780 Numerical Investigation of Al2O3/Water Nanofluid Heat Transfer in a Microtube with Viscous Dissipation Effect

**Authors:**
Misagh Irandoost Shahrestani,
Hossein Shokouhmand,
Mohammad Kalteh,
Behrang Hasanpour

**Abstract:**

**Keywords:**
convective heat transfer coefficient,
heat transfer,
microtube,
nanofluid,
viscous dissipation

##### 5779 Performance Analysis of Absorption Power Cycle under Different Source Temperatures

**Authors:**
Kyoung Hoon Kim

**Abstract:**

**Keywords:**
ammonia-water mixture,
Kalina cycle,
low-grade heat source,
source temperature

##### 5778 Short-Term Energy Efficiency Decay and Risk Analysis of Ground Source Heat Pump System

**Authors:**
Tu Shuyang,
Zhang Xu,
Zhou Xiang

**Abstract:**

**Keywords:**
capacity,
energy efficiency,
GSHP,
heat exchange

##### 5777 Topological Sensitivity Analysis for Reconstruction of the Inverse Source Problem from Boundary Measurement

**Authors:**
Maatoug Hassine,
Mourad Hrizi

**Abstract:**

**Keywords:**
geometric inverse source problem,
heat equation,
topological optimization,
topological sensitivity,
Kohn-Vogelius formulation

##### 5776 Experimental Study of an Isobaric Expansion Heat Engine with Hydraulic Power Output for Conversion of Low-Grade-Heat to Electricity

**Authors:**
Maxim Glushenkov,
Alexander Kronberg

**Abstract:**

**Keywords:**
isobaric expansion,
low-grade heat,
heat engine,
renewable energy,
waste heat recovery

##### 5775 Post Occupancy Evaluation of the Green Office Building with Different Air-Conditioning Systems

**Authors:**
Ziwei Huang,
Jian Ge,
Jie Shen,
Jiantao Weng

**Abstract:**

**Keywords:**
post-occupancy evaluation,
green office building,
air-conditioning systems,
ground source heat pump system

##### 5774 Effects of Viscous Dissipation and Concentration Based Internal Heat Source on Convective Instability in A Porous Medium with Throughflow

**Authors:**
N. Deepika,
P. A. L. Narayana

**Abstract:**

**Keywords:**
porous medium,
concentration based internal heat source,
vertical throughflow,
viscous dissipation

##### 5773 Enhancement of Natural Convection Heat Transfer within Closed Enclosure Using Parallel Fins

**Authors:**
F. A. Gdhaidh,
K. Hussain,
H. S. Qi

**Abstract:**

**Keywords:**
chips limit temperature,
closed enclosure,
natural convection,
parallel plate,
single phase liquid

##### 5772 An Experimental Study on the Coupled Heat Source and Heat Sink Effects on Solid Rockets

**Authors:**
Vinayak Malhotra,
Samanyu Raina,
Ajinkya Vajurkar

**Abstract:**

**Keywords:**
coupled effect,
heat transfer,
sink,
solid rocket motors,
source

##### 5771 Comparative Syudy Of Heat Transfer Capacity Limits of Heat Pipe

**Authors:**
H. Shokouhmand,
A. Ghanami

**Abstract:**

**Keywords:**
heat pipe,
HVAC system,
grooved heat pipe,
heat pipe limits

##### 5770 Energy and Economic Analysis of Heat Recovery from Boiler Exhaust Flue Gas

**Authors:**
Kemal Comakli,
Meryem Terhan

**Abstract:**

**Keywords:**
heat recovery from flue gas,
energy analysis of flue gas,
economical analysis,
payback period

##### 5769 Magnetohydrodynamic Flow of Viscoelastic Nanofluid and Heat Transfer over a Stretching Surface with Non-Uniform Heat Source/Sink and Non-Linear Radiation

**Authors:**
Md. S. Ansari,
S. S. Motsa

**Abstract:**

**Keywords:**
magnetic field,
nonlinear radiation,
non-uniform heat source/sink,
similar solution,
spectral local linearisation method,
Rosseland diffusion approximation

##### 5768 Comparative Study of Heat Transfer Capacity Limits of Heat Pipes

**Authors:**
H. Shokouhmand,
A. Ghanami

**Abstract:**

**Keywords:**
heat pipe,
HVAC system,
grooved Heat pipe,
heat pipe limits

##### 5767 Heat Pipes Thermal Performance Improvement in H-VAC Systems Using CFD Modeling

**Authors:**
M. Heydari,
A. Ghanami

**Abstract:**

**Keywords:**
heat pipe,
HVAC system,
grooved heat pipe,
heat pipe limits

##### 5766 Improve Heat Pipe Thermal Performance in H-VAC Systems Using CFD Modeling

**Authors:**
H. Shokouhmand,
A. Ghanami

**Abstract:**

**Keywords:**
heat pipe,
HVAC system,
grooved heat pipe,
heat pipe limits

##### 5765 Improvement of Heat Pipes Thermal Performance in H-VAC Systems Using CFD Modeling

**Authors:**
H. Shokouhmand,
A. Ghanami

**Abstract:**

**Keywords:**
heat pipe,
HVAC system,
grooved heat pipe,
heat pipe limits

##### 5764 Improve Heat Pipes Thermal Performance In H-VAC Systems Using CFD Modeling

**Authors:**
A. Ghanami,
M.Heydari

**Abstract:**

**Keywords:**
Heat pipe,
HVAC system,
Grooved Heat pipe,
Heat pipe limits.