...COGON GRASS AS THERMAL INSULATING MATERIAL KRISELLE ANNE A. GERPACIO A Thesis Outline Submitted to the Department of Civil Engineering, College of Engineering and Computing, University of Southern Mindanao, Kabacan, Cotabato in Partial Fulfillment of the Requirements for the Degree of BACHELOR OF SCIENCE IN CIVIL ENGINEERING DECEMBER 2014 INTRODUCTION Significance of the Study Cogon grass known as Imperata cylindrical is considered as the one of the worst weed because it destroys the land where it grows. It deteriorates the nutrients of the soil thus creating problems to farmers. Hence, the researcher would like to study if this grass can be a substitute as thermal insulating material. If it can be an alternative, this research would really give great help to many farmers. Objectives of the Study The main objective of this study is determine whether Cogon grass can be a substitute as thermal insulator as compared to other traditional thermal insulating materials. Specifically, this study aims to: 1. determine the thermal resistance (R) of Cogon grass as thermal insulating material; 2. determine the thermal conductivity (k) of Cogon grass as thermal insulating material; 3. determine how much heat (Q) trasmit to the layer of the Cogon grass per second; and, 4. determine how much is the temperature gradient or temperature difference per unit thickness of piled Cogon grass. Scope and Limitation of the Study The study will be...
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...There are many ways you can add insulation to your garage door. You can use fiberglass batt insulation, foam boards or reflective barriers. If your garage door does not have insulation, you'll have to measure the space and cut the insulation to size. You'll need to adhere it to your garage door using tape or glue. Adding insulation will help keep your garage warm in the winter and cooler in the summer months. Insulate The Garage Walls After you insulate your garage door, you should also insulate your garage walls. Insulating your garage walls will help keep your garage warmer. You can use fiberglass batt insulation on your garage walls. You can install it yourself or hire a contractor to do so. If you choose to install it yourself, you'll want to make sure that it fits snuggly. If it is too large or small for the space, it will not fit effectively. You also need to make sure that it is securely attached to the walls; be sure to use the adhesive recommended by the manufacture with the insulation. If you don't want your garage to be a freezing ice-box this winter, you need to make sure that your weatherstripping is in tact and you need to insulate your garage door and walls. This will help keep your garage warm and safe all winter...
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...GREEN BUILDING GUIDE Design Techniques, Construction Practices & Materials for Affordable Housing RCAC GREEN BUILDING GUIDE Design Techniques, Construction Practices & Materials for Affordable Housing Principal Author Craig Nielson, LEED AP Rural Community Assistance Corporation Co-authors Connie Baker Wolfe Rural Community Assistance Corporation Dave Conine Rural Community Assistance Corporation Contributor Art Seavey Rural Community Assistance Corporation Design Dave Conine Sharon Wills Rural Community Assistance Corporation Managing Editor and Production Sharon Wills RCAC Corporate Office: 3120 Freeboard Drive, Suite 201, West Sacramento, California 95691 916/447-2854 | 916/447-2878 fax | www.rcac.org Published by Rural Community Assistance Corporation (RCAC), a nonprofit organization dedicated to assisting rural communities achieve their goals and visions by providing training, technical assistance and access to resources. RCAC promotes quality, respect, integrity, cooperation and commitment in our work. Copyright © 2009 RCAC. All rights reserved. For reprint permission, please call 916/447-2854. Disclaimer: The material in this document has been reviewed by RCAC and approved for publication. The views expressed by individual authors, however, are their own and do not necessarily reflect those of RCAC. Trade names, products or services do not convey, and should not be interpreted as conveying, RCAC approval, endorsement or recommendation...
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...Columbia Disaster The Space Shuttle Columbia disaster happened on February 1st, 2003, which broke on the way back to the Earth. All the astronauts, including two women died in this disaster. The reason why this disaster happened was a piece of foam insulation broke off from the Space Shuttle external tank which damaged the left wing of the shuttle. Even though some engineers of NASA had doubted that the left wing of shuttle had been damaged, the administration staffs restricted to do advanced research. The engineers of NASA found that the foam shedding and debris strikes could not be avoided and solved, even though the previous design of space shuttle required that the external tank was not to shed foam or other debris. However, this situation was not account for security threat and regarded as the acceptable risk. Thus, the launch was given the go-head. Due to the broken left wing which caused the damage of Space Shuttle thermal protection system, hot gases penetrated and destroyed the internal wing structure which led to the disintegrate of the shuttle immediately over the area of south Dallas. Ignore the Feedback Control Even though the similar situation happened in the prior mission (in the 13th and 16th mission of Columbia, the foam went undetected as well), the administration department of NASA were getting used to those situation which did not cause the serious damage to the shuttle that led to the disaster of the 28th mission of Columbia. Just like Diane Vaughan explained...
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...This unit involves the basic skills and knowledge required to prevent, fight and extinguish fires on board an ocean-going commercial vessel.This unit incorporates the content of the previous two units TDMMF901A Fight and extinguish fires and TDMMF1201A Minimise the risk of fire and maintain a state of readiness to respond to emergency situations involving fire as the content applied to ocean-going vessels. It aligns with the AMSA approved course: SC002 ? Fire Prevention and Firefighting. | Unit Sector | Operational Quality and Safety | Pre-Requisites | The unit may be assessed in conjunction with other units that relate to the functions of the occupation(s) concerned. | Performance Criteria | 1 Carry out fire minimisation procedures 1.1 Fire hazards on board vessel are identified and action is taken to eliminate or minimise them 1.2 Responsibilities for checking fire prevention equipment and systems are fulfilled and appropriate action is taken to ensure that they are operational 1.3 An awareness and understanding of the causes of fire and its minimisation is maintained through participation in fire drills and related instructional programs 1.4 A state of readiness to respond to fire emergencies is maintained at all times 1.5Where applicable, correct techniques are applied for the setting up of foam making equipment to extinguish B Class fires on board a vessel2 Respond to emergency situations involving fire 2.1 Emergency situations involving fire are correctly identified...
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...problems that arise in the future? This disaster should not have occurred but it did, why did it? Who is responsible? Will it happen again? If more time was spend of trying to rectify the issue before it got out of hand, maybe the crew of the Columbia would have landed safely as it was supposed to. The space shuttle Columbia STS-107 launched on January 16, 2003 from Kennedy Space Center. During the launch a briefcase-size chunk of foam insulation fell away from a bi-pod ramp on the ships external tank 81.7 seconds after liftoff (Harwood). The foam chunk with velocity smashed a hole in one of the protective shields panels that make up the left wing leading edge. Photos and video shows this happening very clearly. What you cannot see is where the foam actually hit. The only thing that is visible is when the foam explodes after it hits the wing. So at this point the damage is done, NASA knows about it, MMT knows about it, and DAT knows about it. The engineers were getting worrisome with not knowing the extent of the damage. Then they all concluded that the foam did not pose a safety risk. As MMT Chairlady Linda Ham famously said at one point, "it's not really a factor during the flight because there is not much...
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...Metal Roofing Underlayment -Tips on Choosing the Best System Jeffry Ceruti and Jason Der Ananian -Simpson Gumpertz & Heger Inc. 30 September 2010 1. INTRODUCTION Underlayment products for use beneath metal panel roof systems should be carefully selected to provide a roofing system that performs satisfactorily for its intended service life. Several considerations must be addressed in the roofing system design, including ensuring that the four barriers needed in any building enclosure (Le., water barrier, thermal insulation barrier, vapor retarder, and air barrier) are provided and are in the correct location for a given climate. Long term, in-service roof performance can be affected by several important factors including: the metal roofing system and its expected service life, the climate at the building location, roof slope and geometry, and ambient conditions (temperature/relative humidity) within the building. Improper selection of the roof underlayment may allow roof leakage or entrap moisture due to vapor diffusion or air exfiltration, which may accelerate deterioration of concealed components, shortening their service life and necessitating repairs. Further, to provide longevity the underlayment should match the intended service life of the metal roofing system. Although there is no universal design that applies to all buildings, this paper attempts to clarify many of the issues involved in selecting appropriate metal roof underlayment materials, and provides guidelines...
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...The Station Night Club Fire Professor Arthur J. Deyo BFS 3251, Introduction to Fire Protection February 21, 2015 On February 20, 2003 in West Warwick Rhode Island the Station night club was a scene of a horrific and fatal incident. The Station Night club was located on 211 Cowesett Avenue. The building was a single story wood frame building with a small basement underneath the main bar room. The building had been modified several times over the years and changed ownership several times as well. The building was built between 1946 and 1950. Inside the nightclub, polyurethane foam was installed on the rear wall, platform wall and in the alcove as a sound attenuation material. The ceiling was raised and was constructed of gypsum board and a light rack was suspended from the ceiling. There was a sun room which consisted of wood paneling as well as portions of the night club. The night club consisted of three exits which were not obstructed and were working the night of the fire. The building did not have a sprinkler system or any fire retardant material built in. There were built in windows in the sunroom and main bar area which were accessible. The Station Nightclub had consisted of several additions and remodeling projects that were completed since the original construction. The nightclub had changed ownership as well as foreclosures as well. In March 1972 the nightclub was the scene of a fire which closed the night club in 1974. When the night club was...
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...THE PROPERTY INSPECTORS 2010 LIMITED PO Box 82400, Highland Park, 2143 email: grant@thepropertyinspectors.co.nz 0800 NSPEXU (677398) mobile: 027 293 9808 Presenting THE PROPERTY INSPECTORS Pre-purchase Property Report 7 Oak Manor Drive Albany Provided for Jay YIN 04/08/2014 Dear Jay YIN, RE: Pre Purchase Inspection: 7 Oak Manor Drive, Albany, Auckland. Thank you for the opportunity to inspect your proposed purchase which was undertaken in fine conditions on 04/08/2014. Please find following my completed report which I encourage you to read in its entirety. The property report is not a guarantee that all defects (and/or future defects) have been identified. The inspection is carried out solely on a visual basis. All efforts have been made to identify possible defects (and/or future defects). The property report is not a guarantee that the house meets all the requirements under the Building Act at the time of construction and/or under the Building Act at the time of inspection. The purpose of the report is to identify areas of interest/concern, NOT to provide independent expert advice on specific elements and NOT to recommend solutions to faults identified. The purpose of the inspection is to provide an impartial, technically knowledgeable and visually thorough account of the properties general state being the next best step toward assisting a purchaser in determining the appropriateness of the purchase to their individual threshold for maintenance and repair. The...
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...Cause and Effect of Mesothelioma Mesothelioma is a complex cancer distinguished by its cause and aggressiveness. The disease is caused by exposure to asbestos and is often misdiagnosed because of the latency period between exposure to the carcinogen and the development of the cancer. Asbestos has long been considered a miracle material and has had many uses dating back to ancient Greece where it was first used as a building material and as a component of fabric. Now asbestos has been identified as a known human carcinogen and despite known risks associated with it asbestos is still being used today. Even today its uses may be limited but still many are exposed to this dangerous cancerous substance daily at their jobs. The fact is that this material has the potential to cause cancer through direct and indirect exposure, and I feel that a safer substitute should have been discovered already. Mesothelioma, the cancer that is caused by asbestos is so fatal that even survivors of it rarely live longer than 3 years after surviving the initial treatment. From my analysis of the risks associated with occupational asbestos exposure and the impact of the cancer it has been associated with I strongly believe that we should be more concerned with using the dangerous material. First I want to address the nature of the disease and its effect on the human body. This form of cancer is directly associated with exposure to asbestos. The most common place to be exposed to asbestos is industrial...
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...Experience in Telecommunication, Engineering, N.G.O., Private Limited, Public Limited, Banking, Multinational Companies and other reputed Companies in Bangladesh or overseas. EDUCATION Bsc in Engineering Grade point Avg : 3.65 (Up to 4) Department : Electronics & Communication Institute : Southern University. Diploma in Engineering Grade point Avg : 3.34 (Up to 4) Department : Computer. Institute : Dhaka Polytechnic Institute. Year : 2006 S.S.C : Grade latter : “A” Grade point Avg : 4.38(Without Optional) Year : 2002 School : Abdur Rob High School, Bhola. Board : Barishal. KNOWLEDGE ❖ Computer knowledge :Programming language(C, C++, Visual Basic 6.0), Microsoft office, Auto CAD, Networking (LAN), Adobe Photoshop, Ulead Video Studio, Linux Operating Graphics Design, 10g Oracle Database Maintenance. ❖ Language knowledge : Bangla, English (Spoken Course from LOTUS). ❖ Project knowledge :Banking Management System Software (Sonali & krishe Bank, BSL Branch.) Automatic Door ...
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...16 Upon curing they shrink more as compared to amorphous thermoplastics. Examples are polypropylene (PP), polyethylene (PE) [1]. S. Amin and M. Amin In order to resolve the problem of low thermal and chemical stability of thermoplastic elastomers, dynamic vulcanization techniques were used in late ] plastic. In dynamic vulcanization the thermoplastic and elastomers are both cross-linked and physically mixed together. This gave rise to a second generation of thermoplastic elastomers which had better tensile strength and oil resistance as compared to those formed by physical mixing only [8]. ] ] ] _ were introduced which were made by same dynamic vulcanization process but using natural and butyl rubbers in place of EPR and EPDM. Natural and butyl rubbers have the advantages like low cost, very good over molding properties, reusable and very easily recyclable scrap [9,10]. Butyl rubber based thermoplastic elastomers have excellent adhesion with other thermoplastics hence it is still used to date for many over molding applications [11]. A list of common thermoplastic elastomers used in modern world is given in Table 1. 1.2.2. Amorphous thermoplastics They are usually transparent and have diffused melting point. The molecules are arranged randomly and ] ] _ to crystalline polymers. Upon curing they shrink less as compared to crystalline thermoplastics [3,4]. Examples are polycarbonate (PC), polymethylmethacrylate (PMMA), polystyrene (PS), polyphenylene oxide (PPO), acrylonitrile...
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...sector in India. It is true that in a country which ranks first in milk production in the world, is number 2 in fruits & vegetables production and has substantial production of marine, meat & poultry products, the country needed a fully developed cold chain sector. However the current scenario reveals that there is a tremendous scope for the development of cold chain facilities. The cold storage sector is undergoing a major metamorphosis, with the Government focusing on food preservation. A lot of stress is being laid on energy efficiency as the cold stores are energy intensive. With the advent of newer materials / equipments, every part of a cold chain renders itself amenable for improvement. As a result type of construction, insulation, refrigeration equipment, type of controls – all of them are witnessing changes. Realizing the significance of the cold chain industry, it is heartening to note that the Govt has taken initiatives, thru bodies like NHB, to establish standards for all the arms of the cold chain. Efforts are also being made to evolve a new concept – ‘Green Cold Chain’. In short the Cold Chain Industry is in the eye of a revolution. The paper would cover the development of cold storage sector in India with progressive changes in pattern of...
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...an internal investigation team of six ex officio members was formed. Harold Gehman Jr., a retired admiral who was NATO supreme allied commander in Europe, was appointed to chair it. A veteran of several military investigations, including the bombing of the U.S. Cole, Gehman, in an initially unpopular move, broadened the inquiry to include the agency’s organization, history and culture. Sean O’Keefe, NASA’s administrator, was incensed that the investigation would reach beyond the confines of the shuttle project alone, and his relations with Gehman became strained and stiff. Based on his experience, however, Gehman persisted. An Accident Investigation Board (hereafter referred to as the Board) was appointed with six additional members who represented a broader set of relevant constituencies. In addition to the chair, the 13 member Board...
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...for energy savings and process efficiency. The BestPractices Steam Steering Committee provides a great deal of input and guidance into the program (see more information about the Committee on pages 1 and 2). Mr. Fred Fendt, Technical Fellow with Rohm & Haas, serves as Chair of the BestPractices Steam Steering Committee. Ms. Debbie Bloom, Senior Consultant for Nalco Company, continues as Vice-Chair. Mr. Doug Riley, Director of Global Energy of Millennium Chemicals, serves as the Executive At-Large. These individuals participate on the BestPractices Steam Steering Committee: Bob Bessette President, Council of Industrial Boiler Owners Victor Bogosian Director of Inspections, National Board of Boiler and Pressure Vessel Inspectors Charles Cottrell Director of Technical Services, North American Insulation Manufacturers Association Beverly France President, Industrial Interactions Robert Griffin Industrial Energy Consultant, Enbridge Gas Distribution Glenn Hahn Service Manager – Energy Services Group, Spirax...
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