Essays on Ashrae

1.0 Introduction

When the concept of green building emerges, environmentalists and researchers automatically assume the solutions lie on materials and their constituencies in buildings they are part of and the lifetime of the building. Exterior material directly in contact with the environment and natural elements may enhance the sustainability of the building, but may greatly impact the functions of nearby ecosystems. Hence building sustainability and environmental maintenance are not exactly interchangeable, and yet these terms are often utilized mistakenly. The pioneers of environmental constructs are not confirmed, although architectural historians suggest they date back prior to Ancient Roman times. Architects took ...

Abstract

The number of worldwide issues concerning environmental safety and corporate social responsibility has been on an ever-increasing rate. This is why we can also see a significant growth in the demand for environment-friendly and self-sustaining buildings. The number of domestic and international organizations that monitor and facilitate the standardization by means of a tiered certification of such buildings has also been on an ever-increasing rate. The LEED certification program is one of the most prominent ones in the U.S. and the UC Davis Brewery, Winery, and Food buildings have received platinum grade certification under such program. The objective of this paper ...

Chemistry

Thermodynamics of Refrigeration

In the olden days winter was the best time of the year for cold drinks, sorbets and ice creams because ice was readily available. Without a thorough understanding of thermodynamics our communities might have to be brought their ice in an ice wagon just like in the olden days. The laws of thermodynamics were developed by scientists and used when processes of the Industrial Revolution were developed. The physics of heat transfer are applied in order to transfer heat away from the portion of a refrigerator or air conditioning that needs to continually cool the air. Now the ...

This study revealed that Kevlar and Kevlar/wool fabric thermal properties. The effect of fabric physical properties on thermal comfort was analyzed. The tests conducted on moisture management techniques were: sweating guarded hot plate (SGHP), moisture management tester, and surface tester. A conclusion for the paper is given which recommends the use of Kevlar and Kevlar/wool in the textile industry. The report examines the different thermal properties of Kevlar A363 and Kevlar/wool in an effort to determine which fabric is best suited for different weather conditions. In addition, the tests carried out shows clearly the difference in thermal properties of ...