Chi-Ming Lai
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View article: Numerical analysis of the structural performance of steel moment connections protected by water-based intumescent coatings in room fire scenarios
Numerical analysis of the structural performance of steel moment connections protected by water-based intumescent coatings in room fire scenarios Open
Steel structures lose strength and stiffness at high temperatures, highlighting the need for effective fire protection to increase safety and improve structural performance. This study investigates the structural performance of BWWF (bolte…
View article: Thermoelectric Generator Applications in Buildings: A Review
Thermoelectric Generator Applications in Buildings: A Review Open
With growing concerns about building energy consumption, thermoelectric generators (TEGs) have attracted significant attention for their potential to generate clean, green, and sustainable power. This comprehensive review explores the appl…
View article: Post-fire performance evaluation of steel connections under a column-loss scenario
Post-fire performance evaluation of steel connections under a column-loss scenario Open
This study evaluates the post-fire performance of steel connections under a column-loss scenario. A series of fire tests, coupon tests and cyclic loading tests were carried out on 5 sets of 1/3-scaled SN400YB steel H-beam-to-H-column conne…
View article: Effect of outdoor wind on the hybrid natural ventilation performance of monitor roofs
Effect of outdoor wind on the hybrid natural ventilation performance of monitor roofs Open
The monitor roof of a building has a raised structure running along the gable ridge, with its smaller roof parallel to the lower main roof. As a common building ventilation design, monitor roofs are expected to induce indoor airflow throug…
View article: Enhancing laminar forced convection heat transfer by using Al2O3/PCM nanofluids in a concentric double-tube duct
Enhancing laminar forced convection heat transfer by using Al2O3/PCM nanofluids in a concentric double-tube duct Open
In this study, a tube with a smaller diameter was inserted in an isoflux heated circular tube to form a concentric double-tube duct. The forced convection heat transfer enhancement efficacy of using concurrent flows of Al2O3/PCM nanofluids…
View article: Effects of the Design Parameters of Ridge Vents on Induced Buoyancy-Driven Ventilation
Effects of the Design Parameters of Ridge Vents on Induced Buoyancy-Driven Ventilation Open
With ridge vents that are commonly used in building ventilation applications as the research object, this study analyzed how design parameters affect the efficiency of thermal buoyancy-driven ventilation induced by ridge vents through comp…
View article: Effects of Shear Tabs and High-Strength Bolts in Seismic Performance of Steel Moment Connections
Effects of Shear Tabs and High-Strength Bolts in Seismic Performance of Steel Moment Connections Open
A shear tab and high-strength bolts are often used to connect a steel H-beam to a column. The design demand and capacity of these elements vary from one standard to the other. To investigate the effect, this study applied a finite element …
View article: Heat Transfer by Natural Convection in a Square Enclosure Containing PCM Suspensions
Heat Transfer by Natural Convection in a Square Enclosure Containing PCM Suspensions Open
Research on using phase change material (PCM) suspension to improve the heat transfer and energy storage capabilities of thermal systems is booming; however, there are limited studies on the application of PCM suspension in transient natur…
View article: Effects of the Wall Properties on the Cooling Efficiency in a Thermosyphon Containing PCM Suspensions
Effects of the Wall Properties on the Cooling Efficiency in a Thermosyphon Containing PCM Suspensions Open
This study explores the effects of pipe wall properties (thermal conductivity k and wall thickness tw) on the heat transfer performance of a rectangular thermosyphon with a phase change material (PCM) suspension and a geometric configurati…
View article: Effects of Wall Properties on Temperature-Control Effectiveness of Heating Section in a Thermosiphon Containing PCM Suspensions
Effects of Wall Properties on Temperature-Control Effectiveness of Heating Section in a Thermosiphon Containing PCM Suspensions Open
This article considers the problem of natural heat transfer in a rectangular thermosiphon to investigate the effects of wall properties (thickness and thermal conductivity) on the heat-transfer characteristics of phase-change-material (PCM…
View article: Urban Design with the Wind: Pedestrian-Level Wind Field in the Street Canyons Downstream of Parallel High-Rise Buildings
Urban Design with the Wind: Pedestrian-Level Wind Field in the Street Canyons Downstream of Parallel High-Rise Buildings Open
We are investigating how to use urban design approaches to conduct the layout and basic design of newly-built high-rise buildings to reduce wind obstruction and create effective urban ventilation. Few studies have addressed this issue. Thi…
View article: The Influence of High-Rise Buildings on Pedestrian-Level Wind in Surrounding Street Canyons in an Urban Renewal Project
The Influence of High-Rise Buildings on Pedestrian-Level Wind in Surrounding Street Canyons in an Urban Renewal Project Open
The pedestrian wind environment in a street canyon is affected by a multitude of factors, including the height and geometric shape of the surrounding buildings, the street width, the wind direction, and speed. Wind-tunnel tests were perfor…
View article: Conjugate Heat Transfer Analysis of PCM Suspensions in a Circular Tube under External Cooling Convection: Wall Conduction Effects
Conjugate Heat Transfer Analysis of PCM Suspensions in a Circular Tube under External Cooling Convection: Wall Conduction Effects Open
In this paper, a numerical method is used to investigate the conjugate heat transfer of a phase change material (PCM) suspension in a circular tube under external cooling convection. The following parameters and ranges were considered: dim…
View article: The effect of the cooling on a dry storage cask for spent nuclear fuel by different wind speed
The effect of the cooling on a dry storage cask for spent nuclear fuel by different wind speed Open
<p>In this study, we considered different the wind speeds affects the thermal performance when the dry storage cask for spent nuclear fuel , which used NAC- MAGNASTOR cask of system, and placed outdoors. We Ddiscuss the dry storage c…
View article: Effects of the Aspect Ratio of a Rectangular Thermosyphon on Its Thermal Performance
Effects of the Aspect Ratio of a Rectangular Thermosyphon on Its Thermal Performance Open
The natural convection behaviors of rectangular thermosyphons with different aspect ratios were experimentally analyzed in this study. The experimental model consisted of a loop body, a heating section, a cooling section, and adiabatic sec…
View article: Natural Ventilation Effectiveness of Awning Windows in Restrooms in K-12 Public Schools
Natural Ventilation Effectiveness of Awning Windows in Restrooms in K-12 Public Schools Open
Using computational fluid dynamics (CFD), this study explores the effect of a different number of awning windows and their installation locations on the airflow patterns and air contaminant distributions in restrooms in K-12 (for kindergar…
View article: Thermal Characterization of a Heat Management Module Containing Microencapsulated Phase Change Material
Thermal Characterization of a Heat Management Module Containing Microencapsulated Phase Change Material Open
In this study, a heat management module containing a microencapsulated phase change material (mPCM) was fabricated from mPCM (core material: paraffin; melting temperature: 37 °C) and aluminum honeycomb structures (8 mm core cell). The alum…
View article: Experimental Observation of Natural Convection Heat Transfer Performance of a Rectangular Thermosyphon
Experimental Observation of Natural Convection Heat Transfer Performance of a Rectangular Thermosyphon Open
This study experimentally investigates the natural convection heat transfer performance of a rectangular thermosyphon with an aspect ratio of 3.5. The experimental model is divided into a loop body, a heating section, a cooling section, an…
View article: Transient Heat Transfer Between Two Horizontal Pipelines in a Heat Tracing Enclosure
Transient Heat Transfer Between Two Horizontal Pipelines in a Heat Tracing Enclosure Open
In this study, a numerical simulation of natural convection between two horizontal differentially heated pipelines inside a circular air-filled enclosure is performed using the finite difference method. The relevant parameters of the probl…
View article: Natural Ventilation Effectiveness of Round Wall-Mounted Vent Caps in Residential Kitchens
Natural Ventilation Effectiveness of Round Wall-Mounted Vent Caps in Residential Kitchens Open
This study explores the effect of different numbers of wall-mounted vent caps and their installation locations on the indoor air environment in residential kitchens, for which limited information is available. Wind tunnel tests were perfor…
View article: Thermal Performance of Microencapsulated Phase Change Material (mPCM) in Roof Modules during Daily Operation
Thermal Performance of Microencapsulated Phase Change Material (mPCM) in Roof Modules during Daily Operation Open
This study combines microencapsulated phase change materials (mPCMs) (core material: paraffin; melting points: 37 and 43 °C) and aluminum honeycomb boards (8 mm core cell) to form mPCM roof modules and investigates their heat absorption an…
View article: Numerical Simulation of the Thermal Performance of a Dry Storage Cask for Spent Nuclear Fuel
Numerical Simulation of the Thermal Performance of a Dry Storage Cask for Spent Nuclear Fuel Open
In this study, the heat flow characteristics and thermal performance of a dry storage cask were investigated via thermal flow experiments and a computational fluid dynamics (CFD) simulation. The results indicate that there are many inner c…
View article: Thermal Performance of a Vertical U-Shaped Thermosyphon Containing a Phase-Change Material Suspension Fluid
Thermal Performance of a Vertical U-Shaped Thermosyphon Containing a Phase-Change Material Suspension Fluid Open
This study investigated the thermal performance of a vertical U-shaped thermosyphon containing a phase-change material (PCM) suspension fluid via experimentation. The heating and cooling sections were located at the top and bottom of the l…
View article: Heat Transfer and Energy Performance of a PVA Wall Tile Containing Macro-Encapsulated PCM
Heat Transfer and Energy Performance of a PVA Wall Tile Containing Macro-Encapsulated PCM Open
This study integrated building material engineering, building construction practices, and heat transfer mechanisms to develop a polyvinyl acetate (PVA) based wall tile, containing macro-encapsulated phase change material (macro-encapsulate…
View article: Wind Tunnel Studies of a Pedestrian-Level Wind Environment in a Street Canyon between a High-Rise Building with a Podium and Low-Level Attached Houses
Wind Tunnel Studies of a Pedestrian-Level Wind Environment in a Street Canyon between a High-Rise Building with a Podium and Low-Level Attached Houses Open
The pedestrian-level wind environment quality in street canyons formed by high-rise buildings and other low-level buildings could be affected by multiple factors, such as the height and geometry of the surrounding buildings, street width, …
View article: The Effects of Envelope Design Alternatives on the Energy Consumption of Residential Houses in Indonesia
The Effects of Envelope Design Alternatives on the Energy Consumption of Residential Houses in Indonesia Open
As an emerging country and one of the most populous countries in the world, Indonesia requires a sufficient energy supply to ensure the nation’s continued development. In response to this increasing energy demand, various studies have prop…
View article: Potential of Offshore Wind Energy and Extreme Wind Speed Forecasting on the West Coast of Taiwan
Potential of Offshore Wind Energy and Extreme Wind Speed Forecasting on the West Coast of Taiwan Open
It is of great importance and urgency for Taiwan to develop offshore wind power. However, relevant data on offshore wind energy resources are limited. This study imported wind speeds measured by a tidal station and a buoy into the software…