4.3 Article

Focusing on summer setpoint temperature to intensify PCM effectiveness in building: energy saving in Jeddah climate

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Thermodynamics

Analysis of unsteady mixed convection of Cu-water nanofluid in an oscillatory, lid-driven enclosure using lattice Boltzmann method

Mostafa Valizadeh Ardalan et al.

Summary: The study investigates the unsteady physics of laminar mixed convection in a lid-driven enclosure filled with Cu-water nanofluid. It finds that implementing a temporally sinusoidal velocity on the top wall reduces the required power while decreasing wall oscillation frequency increases heat transfer rate. Additionally, lowering Richardson number and increasing volume fraction of nanoparticles enhance heat transfer rate.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY (2021)

Article Thermodynamics

Energy saving performance optimization and regional adaptability of prefabricated buildings with PCM in different climates

Jiaojiao Jia et al.

Summary: The use of phase change materials (PCM) in prefabricated buildings can significantly improve the thermal performance and energy consumption of the buildings. Internal placement of PCM is more energy-saving than external placement, and placing PCM on the east or west side of the building is more beneficial for energy saving and indoor temperature improvement. In conclusion, PCM can effectively enhance the thermal and energy performance of prefabricated buildings in different regions.

CASE STUDIES IN THERMAL ENGINEERING (2021)

Article Energy & Fuels

A Machine Learning Approach to Predicting the Heat Convection and Thermodynamics of an External Flow of Hybrid Nanofluid

Rasool Alizadeh et al.

Summary: This study numerically analyzed the heat convection and entropy generation in a hybrid nanofluid flowing around a cylinder embedded in porous media. The research found that the heat transfer of the system increases with higher Reynolds number, permeability parameter, or volume fraction of nanoparticles, while increasing nanoparticle concentration has a nonmonotonic effect on entropy generation. The study demonstrates the capability of artificial intelligence algorithms in predicting the thermohydraulics and thermodynamics of thermal and solutal systems.

JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME (2021)

Article Thermodynamics

Implementation of the panel data regression analysis in PCM integrated buildings located in a humid subtropical climate

Marzhan Kabdrakhmanova et al.

Summary: The study focuses on the performance of PCM in buildings and its impact factors, indicating that temperature-derived functions have a significant impact on energy demand, while wind speed, solar azimuth, and atmospheric pressure have negative impacts. PCM integration may be most economically feasible in Brazil and the USA, while it is infeasible in Paraguay. Furthermore, the environmental impact of PCM application is more pronounced in the USA and China.

ENERGY (2021)

Article Green & Sustainable Science & Technology

Energy cost and ef fi ciency analysis of greenhouse heating system enhancement using phase change material: An experimental study

Shurong Yan et al.

Summary: The increasing production of greenhouse gases and fossil fuels prices are driving decision-makers in communications to implement energy sources more efficiently. Greenhouses play a significant role in food production and require improvements in heating systems, with the possibility of reusing waste heat through PCM explored in this study. The use of PCM HRS can significantly reduce gas consumption and lead to energy savings that return the initial investment within four months.

RENEWABLE ENERGY (2021)

Article Engineering, Chemical

A machine learning approach to the prediction of transport and thermodynamic processes in multiphysics systems-heat transfer in a hybrid nanofluid flow in porous media

Rasool Alizadeh et al.

Summary: This paper presents a novel approach based on machine learning techniques for predicting transport behaviors of complex multiphysics systems, resulting in significant reductions in computational time and cost. The study focuses on a hybrid nanofluid flow over a blunt object in porous media, including mixed convection, entropy generation, local thermal non-equilibrium, and nonlinear thermal radiation. The SVR model is used to approximate various functions, while the PSO meta-heuristic algorithm is applied for proposing correlations, allowing for quantitative evaluation of variables' contributions.

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS (2021)

Article Engineering, Chemical

Investigating the performance of the PCM-integrated building envelope on a seasonal basis

Jingyi Guo et al.

Summary: The study investigated the performance of PCM wallboards under realistic weather conditions and solar radiation, revealing that the performance is highly dependent on key factors such as environmental conditions and volumetric amount. Additionally, optimal thickness values for PCM layers regarding costs and wall density were observed for different types of PCM, while the melting point also plays a significant role in energy-saving effects.

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS (2021)

Article Green & Sustainable Science & Technology

Experimental study of a hemispherical three-dimensional solar collector operating with silver-water nanofluid

Mojtaba Moravej et al.

Summary: The experimental study evaluated a fixed three-dimensional solar collector with a hemispherical geometry according to ASHRAE standards. Results showed that the collector exhibited promising thermal performance due to its geometry and pipe arrangement, making it a viable option for domestic and industrial deployment. Switching from water to Ag-water nanofluid led to an average efficiency increase of around 11%, with the highest efficiency of 61.1% achieved at a nanoparticle concentration of 0.3% and a flow rate of 0.6 GPM.

SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS (2021)

Article Construction & Building Technology

Multi-factor analysis on thermal comfort and energy saving potential for PCM-integrated buildings in summer

Y. Qu et al.

Summary: The multi-factor orthogonal simulation analysis explored the impact of four key parameters of PCM-integrated building envelopes on energy consumption and indoor thermal comfort in Chinese climate. The influence of these parameters on energy saving and indoor temperature fluctuation was discussed, with the optimal solution being the use of BioPCMTM23 (PCM2) with 7 cm thickness on both wall and roof. Integrating PCM into the envelope can effectively reduce indoor temperature fluctuations and achieve significant energy savings by selecting PCMs based on local climatic conditions.

ENERGY AND BUILDINGS (2021)

Article Engineering, Chemical

Introducing two scenarios to reduce building energy usage: PCM installation and integrating nanofluid solar collectors with DHW system

Yacine Khetib et al.

Summary: This study investigates energy-saving methods in building energy usage in warm climates by introducing two scenarios. The findings suggest that adding PCM to walls and using a solar system filled with nanofluid can effectively reduce energy consumption, with collectors filled with Al2O3/water showing the best results.

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS (2021)

Article Green & Sustainable Science & Technology

A dynamic multi-objective optimization procedure for water cooling of a photovoltaic module

Mohammad Hassan Shahverdian et al.

Summary: Dynamic multi-objective optimization (DMOO) significantly improves the performance of a polycrystalline-based solar photovoltaic (PV) module by increasing annual energy production and reducing water consumption.

SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS (2021)

Article Green & Sustainable Science & Technology

Energy-saving of building envelope using passive PCM technique: A case study of Kuwait City climate conditions

Abdullah A. A. A. Al-Rashed et al.

Summary: In Kuwait's climate region, the residential sector consumes 64% of electricity, so reducing heat gain is an effective way to reduce power usage in hot climates. Adding PCM to the roof and walls can help reduce heat exchange, with RT-31 being the most effective PCM for energy and CO2 savings. Geographical direction has minimal impact on the effectiveness of PCMs.

SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS (2021)

Article Thermodynamics

Investigating the thermal energy storage inside a double-wall tank utilizing phase-change materials (PCMs)

Mehdi Miansari et al.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY (2020)

Article Mathematics, Applied

Efficacy of injectable rib height on the heat transfer and entropy generation in the microchannel by affecting slip flow

Dariush Bahrami et al.

MATHEMATICAL METHODS IN THE APPLIED SCIENCES (2020)

Article Engineering, Chemical

Numerical study on the effect of planar normal and Halbach magnet arrays on micromixing

Dariush Bahrami et al.

INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING (2020)

Article Construction & Building Technology

Transitioning to high efficiency air conditioning in Saudi Arabia: A benefit cost analysis for residential buildings

M. Krarti et al.

JOURNAL OF BUILDING ENGINEERING (2020)

Article Construction & Building Technology

Energy usage reduction in an air handling unit by incorporating two heat recovery units

Aysan Shahsavar Goldanlou et al.

JOURNAL OF BUILDING ENGINEERING (2020)

Article Nanoscience & Nanotechnology

A space structural mechanics model of silicene

Mohsen Motamedi

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART N-JOURNAL OF NANOMATERIALS NANOENGINEERING AND NANOSYSTEMS (2020)

Article Multidisciplinary Sciences

Forced convection heat transfer of water/FMWCNT nanofluid in a microchannel with triangular ribs

Afshin Shiriny et al.

SN APPLIED SCIENCES (2019)

Article Thermodynamics

Effect of elastic foundation on vibrational behavior of graphene based on first-order shear deformation theory

Mohsen Motamedi et al.

ADVANCES IN MECHANICAL ENGINEERING (2018)

Article Thermodynamics

Investigation of finned heat sink performance with nano enhanced phase change material (NePCM)

Milad Bayat et al.

THERMAL SCIENCE AND ENGINEERING PROGRESS (2018)

Article Thermodynamics

Efficiency improvement of a steam power plant through solar repowering

Gholamreza Ahmadi et al.

INTERNATIONAL JOURNAL OF EXERGY (2017)

Review Green & Sustainable Science & Technology

Finding the best locations for establishment of solar-wind power stations in Middle-East using GIS: A review

Mehdi Jahangiri et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2016)

Article Chemistry, Multidisciplinary

Vibration Behavior and Mechanical Properties of Carbon Nanotube Junction

M. Motamedi et al.

JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE (2013)