Digital Commons Network^™

Experimental Investigation On Combustion And Emission Characteristics Of Co-Combustion Of Pulverized Biomass With Diesel Fuel In An Industrial Burner, Medhat Elkelawy Prof. Dr, Eng., Hagar Alm-Eldin Bastawissi, Ahmed Abou El-Yazied Prof. Dr., Saad El-Malla Dr. Eng.

Journal of Engineering Research

This study presents the combustion and emission results obtained from a laboratory furnace equipped with a 35 kW industrial burner that utilizes co-combustion of pulverized biomass and diesel fuel. The experiment compared the co-combustion of pulverized biomass and diesel fuel with diesel fuel alone. Three different loading ratios of pulverized biomass from residual beet samples were used. Temperatures were measured at various positions inside the furnace to analyze combustion performance. It was observed that increasing the biomass loading ratios led to higher flame temperatures and improved combustion compared to diesel fuel alone. The concentrations of pollutants such as Co, HC, …

Optimization Of The Bio-Synthesis Of Magnesium Nanoparticles From Staphylococcus Haemolyticus: A Pilot Study, Mariam Bassam, Malak Mezher, Mahmoud Khalil

BAU Journal - Science and Technology

Nanotechnology is developing rapidly. This field has many influences in humans’ life. Nanoparticles (NPs) have many unique properties including the size, shape, morphology, and surface area. The synthesis of NPs could be achieved by three ways: physical, chemical, and biological. However, the biological synthesis of NPs has a priority on the other domains due to its safety and environmental friendship. In this regard, the main objective of this study was to synthesize magnesium (Mg) NPs from the bacterium S. haemolyticus which was isolated from the Lebanese wastewater. Different parameters were applied to detect the best conditions to produce the highest …

Durability And Frost Resistance Of Concrete Composition With Complex Chemical Additive Kj-3

The Scientific-Practice Journal of Architecture, Construction and Design

Основными задачами современного материаловедения являются разработка способов направленного формирования высоко долговечной структуры композитных материалов, получение бетонов с заданными эксплуатационными свойствами при максимальной простоте технологии производства и экономии сырьевых ресурсов. При этом создание энергосберегающей технологии бетонов на основе местного сырья и вторичных ресурсов занимает особое место.

Основными направлениями совершенствования эксплуатационных характеристик бетонов является улучшение технологичности, повышение прочности и долговечности. Для решения данной задачи большое внимание отдается разработке новых комплексных химических добавок, позволяющих одновременно, целенаправленно регулировать сразу несколько свойств бетонов на основе гидравлических вяжущих веществ.

В настоящее время в Узбекистане и за рубежом бетоны практически всех составов разрабатываются и производятся с химическими …

Ab-10-017: Combined Effects Of Noise And Temperature On Human Comfort And Performance (1128-Rp), Dale Tiller, Lily M. Wang, Amy Musser, Matthew Radik

Lily M Wang

This paper summarizes results from an experiment designed to investigate the combined effects of noise and temperature on human thermal comfort and task performance. Thirty subjects (16 females, 14 males) were exposed to all combinations of five thermal conditions (PMV +1 [79.6°F:26.4°C], PMV +0.5 [75.8°F:24.3°C], PMV 0 [72.1°F:22.3°C], PMV -0.5 [68.3°F:20.2°C], and PMV -1 [64.6°F:18.1°C]), three RC noise levels (RC-30, RC-40, and RC-50), and two sound qualities (neutral and rumbly): all sounds mimicked noise from building ventilation systems. After a one-hour adaptation period at each condition, subjects rated their thermal comfort using the ASHRAE Thermal Comfort Scale and the Tenant …

The Evolving Philosophy Of Climate Control For Historic House Museums In Subtropical Climates: Recommendations For The Aiken-Rhett House, Charleston, South Carolina, Mariah C. Schwartz

All Theses

This study was designed to determine the most appropriate type of climate control system for the Aiken-Rhett House (1820-22), a historic house museum located in Charleston, South Carolina. The Aiken-Rhett property is unique in that it has never been restored and the current stewards of the museum have taken a conservation philosophy to the interpretation of the house. This house museum is rare because it is one of the few remaining unrestored antebellum structures in the South. Although grand mansions were never intended to exist in a state of decline, as the Aiken-Rhett does now, the preserved layers of time …

Ab-10-017: Combined Effects Of Noise And Temperature On Human Comfort And Performance (1128-Rp), Dale Tiller, Lily M. Wang, Amy Musser, Matthew Radik

Durham School of Architectural Engineering and Construction: Faculty Publications

This paper summarizes results from an experiment designed to investigate the combined effects of noise and temperature on human thermal comfort and task performance. Thirty subjects (16 females, 14 males) were exposed to all combinations of five thermal conditions (PMV +1 [79.6°F:26.4°C], PMV +0.5 [75.8°F:24.3°C], PMV 0 [72.1°F:22.3°C], PMV -0.5 [68.3°F:20.2°C], and PMV -1 [64.6°F:18.1°C]), three RC noise levels (RC-30, RC-40, and RC-50), and two sound qualities (neutral and rumbly): all sounds mimicked noise from building ventilation systems. After a one-hour adaptation period at each condition, subjects rated their thermal comfort using the ASHRAE Thermal Comfort Scale and the Tenant …